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Clinical Research of Transumbilical Singleport Laparoscopic Treatment For Pediatric Intussusception
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作者 Jing Bai Xianzong Xiang 《Expert Review of Chinese Medical》 2024年第2期43-47,共5页
Objective:To explore the feasibility and clinical efficacy of single port laparoscopic surgery through the umbilical cord for the treatment of pediatric intussusception.Method:Clinical data of 38 cases of pediatric in... Objective:To explore the feasibility and clinical efficacy of single port laparoscopic surgery through the umbilical cord for the treatment of pediatric intussusception.Method:Clinical data of 38 cases of pediatric intussusception treated with umbilical single port laparoscopic surgery from December 2017 to June 2019 were collected.The surgical method involves placing Trocar through the umbilical incision to establish pneumoperitoneum,inserting a single hole with a 0°laparoscopic operating channel,exploring intussusception,and performing non-invasive forceps to completely reduce it.After the reduction of intussusception,if intestinal malformation is found,the umbilical incision can be expanded to lift the diseased intestinal tract out of the abdominal cavity for resection.At the same time,clinical data of 24 children who underwent traditional porous laparoscopic intussusception surgery during the same period were collected,and the surgical time,intraoperative blood loss,postoperative hospital stay,and satisfaction score of incision aesthetics were compared between the two groups of children.Result:Both groups of patients successfully completed the surgery,and compared with the porous laparoscopic group,the single hole laparoscopic group had a shorter surgical time[(32.4±8.6)minutes vs.(40.6±9.8)minutes,P<0.05],decreased bleeding volume[(5.5±1.5)mL vs.(8.6±2.2)mL,P<0.05],significantly shortened postoperative hospital stay[(4.6±1.2)d vs.(6.2±1.4)d,P<0.05],and significantly increased satisfaction score with incision aesthetics[(4.2±0.8)points vs.(3.2±0.7)points,P<0.05].Follow up for 6 months to 2 years showed no recurrence of intussusception.Conclusion:Transumbilical single port laparoscopic surgery is a safe and effective method for children with intussusception,which is characterized by small trauma,fast recovery,short operation time,and better aesthetic effect. 展开更多
关键词 intussusception single-port laparoscopy CHILD
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Appendiceal intussusception complicated by adenocarcinoma of the cecum:A case report 被引量:2
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作者 Yu Long Yi-Ning Xiang +3 位作者 Fei Huang Lei Xu Xiao-Yun Li Yun-Huan Zhen 《World Journal of Clinical Cases》 SCIE 2024年第8期1461-1466,共6页
BACKGROUND Appendiceal intussusception is a pathological condition in which the appendix is inverted into the cecum,which may cause symptoms that resemble those of other gastrointestinal disorders and may induce intes... BACKGROUND Appendiceal intussusception is a pathological condition in which the appendix is inverted into the cecum,which may cause symptoms that resemble those of other gastrointestinal disorders and may induce intestinal obstruction.The rarity of this case presentation is the co-occurrence of appendiceal intussusception and cecal adenocarcinoma,a combination that to our knowledge has not previously been reported in the medical literature.This case provides new insights into the complexities of diagnosing and managing overlapping pathologies.CASE SUMMARY A 25-year-old woman presented with persistent periumbilical pain and bloody stools.An initial biopsy showed cecal cancer;however,subsequent colonoscopy and computed tomography findings raised the suspicion of appendiceal intussus-ception,which was later confirmed postoperatively.This unique case was charac-terized by a combination of intussusception and adenocarcinoma of the cecum.The intervention included a laparoscopic right hemicolectomy,which led to the histopathological diagnosis of mucinous adenocarcinoma with appendiceal intussusception.The patient recovered well postoperatively and was advised to initiate adjuvant chemotherapy.This case highlights not only the importance of considering appendiceal intussusception in the differential diagnosis,but also the possibility of appendicitis and the atypical presentation of neoplastic lesions.CONCLUSIONS Physicians should consider the possibility of appendiceal intussusception in cases of atypical appendicitis,particularly when associated with neoplastic presentation. 展开更多
关键词 Appendiceal intussusception APPENDICITIS Cecal cancer Target signs MISDIAGNOSIS Case report
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Colon Adenocarcinoma in a Retrograde Intussusception: A Case Report and Literature Review
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作者 Carlos Hernández Brito Pedro Arredondo Ruiz +4 位作者 Brenda Paola Sáenz Dávila Arsenio Torres Delgado Luis Eduardo Méndez Turrubiates Luis Ángel Amezcua Toledo Omar Josué Herrera López 《Open Journal of Gastroenterology》 CAS 2024年第5期153-160,共8页
Background: Intussusception is defined as a telescoping of a proximal gastrointestinal segment with its mesentery to a distal one, only 5% occur in adults and in colon the probability that it is caused by a malignant ... Background: Intussusception is defined as a telescoping of a proximal gastrointestinal segment with its mesentery to a distal one, only 5% occur in adults and in colon the probability that it is caused by a malignant disease is up to 65%. Only 1% occurs in a retrograde manner, the rest occur in an anterograde manner. Aim: Describe the clinical presentation of an intussusception in the adult patient as well as its most frequent causes and possible complications that influence decision making for a definitive treatment. Case Presentation: A 66-year-old woman diagnosed with colon adenocarcinoma who underwent elective transverse colectomy and colonic anastomosis with an incidental finding of a transverse colon tumor in a retrograde intussusception was studied. Conclusion: In any adult patient with an intussusception especially in colon a neoplasia should be suspected and the affected segment should be resected without being reduced due to the risk of perforation and tumor dissemination. 展开更多
关键词 Colon Cancer Colon Adenocarcinoma Colonic intussusception intussusception
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Colo-colonic intussusception as a rare complication of colonoscopy with polypectomy: Two case reports
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作者 Sai-Heng Xiang Guo-Qiang Xu 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第6期1939-1947,共9页
BACKGROUND Colonoscopy is the most frequently used diagnostic and therapeutic tool for the treatment of colorectal diseases.Although the complication rate is low,it can be potentially serious.Intussusception is a rare... BACKGROUND Colonoscopy is the most frequently used diagnostic and therapeutic tool for the treatment of colorectal diseases.Although the complication rate is low,it can be potentially serious.Intussusception is a rare and severe complication often associated with polypectomy.Only a handful of post-colonoscopy intussusception cases have been reported,making this study a valuable addition to the medical literature.CASE SUMMARY Case 1:A 61-year-old man underwent colonoscopy with polypectomy for chronic abdominal pain.The patient experienced abdominal pain 11 hours later but was still discharged after pain management.He was readmitted due to recurring pain.Computed tomography(CT)showed colo-colonic intussusception.Initial conservative management and attempts at endoscopic reduction failed;therefore,laparoscopic right hemicolectomy was performed.Histopathological examination revealed tubular adenomas in the polyps and inflammation in the resected specimens.Case 2:A 59-year-old woman underwent colonoscopy with polypectomy for a polyp in the transverse colon.She experienced upper abdominal pain,fever,nausea,and vomiting 9 hours after the procedure.Emergency CT and blood tests revealed a colo-colonic intussusception near the hepatic flexure and an elevated white blood cell count.Initial attempts at endoscopic reduction failed and conservative treatment showed no improvement.She underwent successful laparoscopic reduction and recovered uneventfully.Histopathological examination of the resected polyp revealed hyperplasia.CONCLUSION Post-colonoscopy intussusception in adults is rare,and polypectomy may contribute to its occurrence.Early diagnosis is crucial,with prompt CT examination serving as key.After excluding malignancies,conservative management and reduction of intussusception should be considered before surgical bowel resection. 展开更多
关键词 intussusception COLONOSCOPY POLYPECTOMY COMPLICATION Case report
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Adult sigmoid intussusception resembling rectal prolapse:A case report
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作者 Tsung-Jung Tsai Yu Shih Liu 《World Journal of Clinical Cases》 SCIE 2024年第6期1163-1168,共6页
BACKGROUND Rectal prolapse arises from benign etiology.When symptoms of internal intussusception mirror those of rectal prolapse,a misdiagnosis is possible,especially under limited clinical presentation.It is crucial ... BACKGROUND Rectal prolapse arises from benign etiology.When symptoms of internal intussusception mirror those of rectal prolapse,a misdiagnosis is possible,especially under limited clinical presentation.It is crucial to recognize and differentiate rectal prolapse from internal intussusception because the two diagnoses have different prognoses.Here,we describe a case of adult sigmoid intussusception presenting as rectal prolapse.CASE SUMMARY A 64-year-old woman with no known medical history visited a gastrointestinal outpatient department due to hard bloody stool defecation for 1 wk followed by constipation for 3 d.Colonoscopy revealed a huge polypoid ulcerated tumor at the sigmoid colon with lumen stenosis.The patient was admitted due to postprocedural dull abdominal pain.Due to failed colonoscopy reduction and stent insertion,the patient underwent sigmoid colon resection with primary end-to-end anastomosis,with the transverse colostomy pathological report showing adenocarcinoma,pT3N0M0.She recovered well from the operation and was discharged with regular outpatient clinic follow-up.CONCLUSION Presentation and manifestation of sigmoid intussusception may resemble that of rectal prolapse,necessitating careful observation due to distinct prognostic implications. 展开更多
关键词 Sigmoid intussusception Rectal prolapse Endoscopic reduction ADENOCARCINOMA Case report
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Rare etiology of colonic intussusception involving an adult with emphysematous cystic enteropathy:A case report and review of literature
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作者 Eric Bergeron Maude Pichette +2 位作者 Geneviève Boisvert Thibaut Manière Étienne Désilets 《World Journal of Clinical Cases》 SCIE 2024年第17期3161-3167,共7页
BACKGROUND Pneumatosis cystoides intestinalis(PCI),characterized by a collection of gas-filled cysts in the intestinal wall,is an uncommon but well-known condition in gastroenterology.Abdominal pain is the most freque... BACKGROUND Pneumatosis cystoides intestinalis(PCI),characterized by a collection of gas-filled cysts in the intestinal wall,is an uncommon but well-known condition in gastroenterology.Abdominal pain is the most frequent symptom associated with PCI.Intussusception represents a potential cause of recurrent abdominal pain or emergency presentation.However,the occurrence of colonic intussusception secondary to PCI is very unusual in adulthood.CASE SUMMARY A 52-year-old male,known with idiopathic PCI,presented seventeen months after initial diagnosis with a new right upper quadrant pain.A computed tomographyscan demonstrated a colonic intussusception at the hepatic flexure.PCI did not progress compared with initial investigation.The patient underwent an emergency right hemicolectomy.CONCLUSION Resection was recommended in this case because PCI proved to be persisting with no identified curable cause.Surgery allowed to address the underlying pathology,the potential relapse of intussusception,and the likely cause of recurrent abdominal pain,either invagination or PCI itself. 展开更多
关键词 Pneumatosis cystoides intestinalis Colonic intussusception Colonic obstruction COLONOSCOPY Case report
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Relationship between postoperative rehabilitation style, gastrointestinal function, and inflammatory factor levels in children with intussusception
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作者 Xue-Yan Wei Hong-Chang Huo +2 位作者 Xin Li Su-Li Sun Jun Zhang 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第8期2640-2648,共9页
BACKGROUND Intussusception occurs in children and progresses rapidly.If not treated in time,it may lead to secondary complications such as intestinal perforation,which affect the quality of life and health of children... BACKGROUND Intussusception occurs in children and progresses rapidly.If not treated in time,it may lead to secondary complications such as intestinal perforation,which affect the quality of life and health of children.Surgery is the most common clinical treatment and has a good effect.However,the postoperative prognosis of children with intussusception has a correlation with the postoperative rehabilitation method.Therefore,in this study,we explored the relationship between postopera-tive rehabilitation,gastrointestinal function,and the expression of inflammatory factors in children with intussusception.The medical records of 18 children who were admitted to our hospital for intussusception surgery between October 2022 and May 2024 were retrospectively reviewed.The patients were divided into the routine nursing group(n=6)and rehabilitation training group(n=12)according to the postoperative rehabilitation method.The general data,gastrointestinal function,and inflammatory factor levels of the two groups were statistically analyzed.Pearson correlation analysis of gastrointestinal function,inflammatory factors,and postoperative rehabil-itation was performed.RESULTS We found no significant intergroup differences in sex,age,or disease course(P>0.05).The times to first defecation,bowel sound recovery,and anal exhaust were shorter and inflammatory factor levels were lower in the rehabilitation training group than in the routine nursing group(P<0.05).Pearson correlation analysis showed that gastrin and motilin levels were positively correlated with postoperative rehabilitation(P<0.05).Interleukin(IL)-2,IL-4,IL-6,IL-10,high-sensitivity C-reactive protein,and tumor necrosis factor-αlevels were negatively correlated with postoperative rehabilitation(P<0.05).Gastrointestinal function was positively correlated(P<0.05),and levels of inflammatory factors were negatively correlated with postoperative recovery time(P<0.05).CONCLUSION We found a positive correlation between gastrointestinal function and postoperative rehabilitation training,and a negative correlation between inflammatory factor levels and rehabilitation training in children with intussus-ception. 展开更多
关键词 Children with intussusception Postoperative rehabilitation mode Gastrointestinal function Inflammatory factors
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The Value of Ultrasound in the Application of Water Enema in Intussusception
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作者 Min Li 《Journal of Clinical and Nursing Research》 2024年第5期108-113,共6页
Objective:To introduce high-frequency ultrasound diagnostic technology to cooperate with diagnosis and treatment for patients with intussusception,and to observe its clinical application effect.Methods:The study took ... Objective:To introduce high-frequency ultrasound diagnostic technology to cooperate with diagnosis and treatment for patients with intussusception,and to observe its clinical application effect.Methods:The study took patients with intussusception as the object of observation,with a total of 52 cases participating,all of which were clinically admitted from December 2022 to December 2023.After enrollment,the patients underwent high-frequency ultrasound detection in sequence,recording the ultrasound imaging characteristics,and referring to the results of surgical or leaky saline enema reset to confirm the diagnosis(the gold standard)to assess the diagnostic efficacy of high-frequency ultrasound technology.Results:Comparing the confirmed diagnostic results of surgery or leaking saline enema restoration,the detection rate of high-frequency ultrasound technology was 98.07%(P>0.05).Among the 52 patients treated with hydropneumatic enema restoration with the cooperation of high-frequency ultrasound monitoring,39 patients were successfully reset in the first treatment(75.00%),while 9 patients were successfully reset(17.30%)after multiple treatments(≥2 times);the remaining 4 patients were unsuccessful and then converted to surgical treatment,and all of them were successfully treated and cured.Conclusion:For the diagnosis of intussusception,high-frequency color Doppler ultrasound has the advantages of high accuracy and simple operation,which provides a scientific and accurate reference basis for the clinical diagnosis and treatment of patients. 展开更多
关键词 ULTRASOUND intussusception ENEMA Diagnostic efficiency
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Surgical treatments of recurrent small intestine metastatic melanoma manifesting with gastrointestinal hemorrhage and intussusception:A case report
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作者 Wen-Juan Fan Heng-Hui Cheng Wang Wei 《World Journal of Gastrointestinal Oncology》 SCIE 2023年第1期205-214,共10页
BACKGROUND Melanoma is the most aggressive form of skin cancer,with a tendency to metastasize to any organ.Malignant melanoma is the most frequent cause of skin cancer-related deaths worldwide.Small intestine cancers ... BACKGROUND Melanoma is the most aggressive form of skin cancer,with a tendency to metastasize to any organ.Malignant melanoma is the most frequent cause of skin cancer-related deaths worldwide.Small intestine cancers especially small intestine metastases are relatively rare.Small intestine metastases are seldom described and likely underdiagnosed.Intussusception is most common in pediatric age,and in adults are almost 5%of all cases.CASE SUMMARY A 75-year-old man with a history of acral malignant melanoma was admitted to the Gastroenterology Department of our hospital,complaining of intermittent melena for 1 mo.Magnetic resonance enterography showed partial thickening of the jejunal wall and formation of a soft tissue mass,indicating a neoplastic lesion with jejunojejunal intussusception.The patient underwent partial small bowel resection.Pathological findings and immunohistochemical staining indicated small intestine metastatic melanoma.The patient refused further anti-tumor treatment after the surgery.Ten months after the first surgery,the patient presented with melena again.Computed tomography enterography showed the anastomotic stoma was normal without thickening of the intestinal wall,and routine conservative treatment was given.Three months later,the patient developed melena again.The patient underwent a second surgery,and multiple metastatic melanoma lesions were found.The patient refused adjuvant anti-tumor treatment and was alive at the latest follow-up.CONCLUSION Small intestine metastatic melanoma should be suspected in any patient with a history of malignant melanoma and gastrointestinal symptoms. 展开更多
关键词 MELANOMA METASTASIS Gastrointestinal hemorrhage intussusception Small bowel resection Case report
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Endoscopic treatment of a large colonic polyp as a cause of colocolonic intussusception in a child 被引量:2
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作者 Nutnicha Suksamanapun Mongkol Uiprasertkul +1 位作者 Ravit Ruangtrakool Thawatchai Akaraviputh 《World Journal of Gastrointestinal Endoscopy》 CAS 2010年第7期268-270,共3页
Colocolonic intussusception is an uncommon cause of intestinal obstruction in children.The most common type is idiopathic ileocolic intussusception.However,pathologic lead points occur approximately in 5%of cases.In p... Colocolonic intussusception is an uncommon cause of intestinal obstruction in children.The most common type is idiopathic ileocolic intussusception.However,pathologic lead points occur approximately in 5%of cases.In pediatric patients,Meckel’s diverticulum is the most common lead point,followed by polyps and duplication.We present a case of recurrent colocolonic intussusception which caused colonic obstruction in a 10-year-old boy.A barium enema revealed a large polypoid mass at the transverse colon.Colonoscopy showed a colonic polyp,3.5 centimeters in diameter,which was successfully removed by endoscopic polypectomy. 展开更多
关键词 Colocolonic intussusception JUVENILE POLYP Endoscopic treatment LARGE COLONIC POLYP
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Combination treatment of inflammatory bowel disease:Present status and future perspectives 被引量:4
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作者 John K Triantafillidis Constantinos G Zografos +1 位作者 Manousos M Konstadoulakis Apostolos E Papalois 《World Journal of Gastroenterology》 SCIE CAS 2024年第15期2068-2080,共13页
The treatment of patients with inflammatory bowel disease(IBD),especially those with severe or refractory disease,represents an important challenge for the clinical gastroenterologist.It seems to be no exaggeration to... The treatment of patients with inflammatory bowel disease(IBD),especially those with severe or refractory disease,represents an important challenge for the clinical gastroenterologist.It seems to be no exaggeration to say that in these patients,not only the scientific background of the gastroenterologist is tested,but also the abundance of“gifts”that he should possess(insight,intuition,determ-ination,ability to take initiative,etc.)for the successful outcome of the treatment.In daily clinical practice,depending on the severity of the attack,IBD is treated with one or a combination of two or more pharmaceutical agents.These combin-ations include not only the first-line drugs(e.g.,mesalazine,corticosteroids,antibiotics,etc)but also second-and third-line drugs(immunosuppressants and biologic agents).It is a fact that despite the significant therapeutic advances there is still a significant percentage of patients who do not satisfactorily respond to the treatment applied.Therefore,a part of these patients are going to surgery.In recent years,several small-size clinical studies,reviews,and case reports have been published combining not only biological agents with other drugs(e.g.,immunosuppressants or corticosteroids)but also the combination of two biologi-cal agents simultaneously,especially in severe cases.In our opinion,it is at least a strange(and largely unexplained)fact that we often use combinations of drugs in a given patient although studies comparing the simultaneous administration of two or more drugs with monotherapy are very few.As mentioned above,there is a timid tendency in the literature to combine two biological agents in severe cases unresponsive to the applied treatment or patients with severe extraintestinal manifestations.The appropriate dosage,the duration of the administration,the suitable timing for checking the clinical and laboratory outcome,as well as the treatment side-effects,should be the subject of intense clinical research shortly.In this editorial,we attempt to summarize the existing data regarding the already applied combination therapies and to humbly formulate thoughts and suggestions for the future application of the combination treatment of biological agents in a well-defined category of patients.We suggest that the application of biomarkers and artificial intelligence could help in establishing new forms of treatment using the available modern drugs in patients with IBD resistant to treatment. 展开更多
关键词 Biologics for immune-mediated conditions Dual-targeted treatment Combination treatment Inflammatory bowel disease Crohn’s
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Clinical observation of loupe-assisted intussusception vasoepididymostomy in the treatment of obstructive azoospermia(analysis of 49 case reports) 被引量:4
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作者 Guo-Xi Zhang Wen-Jun Bai +2 位作者 Ke-Xin Xu Xiao-Feng Wang Ji-Chuan Zhu 《Asian Journal of Andrology》 SCIE CAS CSCD 2009年第2期193-199,共7页
To evaluate the clinical outcomes of loupe-assisted intussusception vasoepididymostomy(VE)in the treatment of epididymal obstructive azoospermia(EOA),we retrospectively analyzed data from 49 patients with EOA who unde... To evaluate the clinical outcomes of loupe-assisted intussusception vasoepididymostomy(VE)in the treatment of epididymal obstructive azoospermia(EOA),we retrospectively analyzed data from 49 patients with EOA who underwent two-suture longitudinal intussusception vasoepididymostomy(LIVE)between 2000 and 2007.The data included the surgical method,postoperative motile sperm count per ejaculation,percentage of progressive motile sperm and patency and pregnancy outcomes.There were a total of 49 men undergoing scrotal exploration,and epididymal obstruction was found in all cases.Bilateral or unilateral anastomoses were performed in 40 and 6 men,respectively.The postoperative courses of 42 patients were followed up for more than 6 months,and the courses of 38 patients were followed up for more than 1 year.The overall patency and pregnancy rates were 71.4%and 26.3%,respectively.Moreover,progressive motile sperm was more frequently present in those patients who had undergone anastomosis at cauda than at corpus or caput.Pregnancy was achieved only in those patients who had undergone anastomosis at least on one side of the cauda epididymis.We think that the loupe-assisted method,with a lower overall cost and a simplified surgical procedure,can achieve satisfactory patency outcomes and pregnancy results.Data from this paper also suggest that paternity outcomes occur more frequently after anastomoses at cauda than at corpus or caput. 展开更多
关键词 epididymal obstructive azoospermia intussusception loupe-assisted VASOEPIDIDYMOSTOMY
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Working toward an integrated plasticity/network framework for repetitive transcranial magnetic stimulation to inform tailored treatments 被引量:2
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作者 Jessica Moretti Jennifer Rodger 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第7期1423-1424,共2页
Non-invasive brain stimulation techniques(NIBS),including repetitive transcranial magnetic stimulation(rTMS) and transcranial electric stim ulation(tES),are increasingly being adopted clinically for treatment of neuro... Non-invasive brain stimulation techniques(NIBS),including repetitive transcranial magnetic stimulation(rTMS) and transcranial electric stim ulation(tES),are increasingly being adopted clinically for treatment of neuropsychiatric and neurological disorders,albeit with varying success.The rationale behind the use of NIBS has historically been that stim ulation techniques modulate neuronal activity in the targeted region and consequently induce plasticity which can lead to therapeutic outcomes. 展开更多
关键词 STIMULATION TRANSCRANIAL treatment
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Gut flora in multiple sclerosis:implications for pathogenesis and treatment 被引量:2
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作者 Weiwei Zhang Ying Wang +2 位作者 Mingqin Zhu Kangding Liu Hong-Liang Zhang 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第7期1480-1488,共9页
Multiple sclerosis is an inflammatory disorder chara cterized by inflammation,demyelination,and neurodegeneration in the central nervous system.Although current first-line therapies can help manage symptoms and slow d... Multiple sclerosis is an inflammatory disorder chara cterized by inflammation,demyelination,and neurodegeneration in the central nervous system.Although current first-line therapies can help manage symptoms and slow down disease progression,there is no cure for multiple sclerosis.The gut-brain axis refers to complex communications between the gut flo ra and the immune,nervous,and endocrine systems,which bridges the functions of the gut and the brain.Disruptions in the gut flora,termed dys biosis,can lead to systemic inflammation,leaky gut syndrome,and increased susceptibility to infections.The pathogenesis of multiple sclerosis involves a combination of genetic and environmental factors,and gut flora may play a pivotal role in regulating immune responses related to multiple scle rosis.To develop more effective therapies for multiple scle rosis,we should further uncover the disease processes involved in multiple sclerosis and gain a better understanding of the gut-brain axis.This review provides an overview of the role of the gut flora in multiple scle rosis. 展开更多
关键词 gut flora gut-brain axis multiple sclerosis PATHOGENESIS treatment
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Influence of heat treatment on microstructure,mechanical and corrosion behavior of WE43 alloy fabricated by laser-beam powder bed fusion 被引量:5
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作者 Chenrong Ling Qiang Li +6 位作者 Zhe Zhang Youwen Yang Wenhao Zhou Wenlong Chen Zhi Dong Chunrong Pan Cijun Shuai 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2024年第1期258-275,共18页
Magnesium(Mg)alloys are considered to be a new generation of revolutionary medical metals.Laser-beam powder bed fusion(PBF-LB)is suitable for fabricating metal implants withpersonalized and complicated structures.Howe... Magnesium(Mg)alloys are considered to be a new generation of revolutionary medical metals.Laser-beam powder bed fusion(PBF-LB)is suitable for fabricating metal implants withpersonalized and complicated structures.However,the as-built part usually exhibits undesirable microstructure and unsatisfactory performance.In this work,WE43 parts were firstly fabricated by PBF-LB and then subjected to heat treatment.Although a high densification rate of 99.91%was achieved using suitable processes,the as-built parts exhibited anisotropic and layeredmicrostructure with heterogeneously precipitated Nd-rich intermetallic.After heat treatment,fine and nano-scaled Mg24Y5particles were precipitated.Meanwhile,theα-Mg grainsunderwent recrystallization and turned coarsened slightly,which effectively weakened thetexture intensity and reduced the anisotropy.As a consequence,the yield strength and ultimate tensile strength were significantly improved to(250.2±3.5)MPa and(312±3.7)MPa,respectively,while the elongation was still maintained at a high level of 15.2%.Furthermore,the homogenized microstructure reduced the tendency of localized corrosion and favoredthe development of uniform passivation film.Thus,the degradation rate of WE43 parts was decreased by an order of magnitude.Besides,in-vitro cell experiments proved their favorable biocompatibility. 展开更多
关键词 laser-beam powder bed fusion WE43 alloys heat treatment mechanical performance biodegradation behavior
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Prospects and challenges for the application of tissue engineering technologies in the treatment of bone infections 被引量:1
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作者 Leilei Qin Shuhao Yang +10 位作者 Chen Zhao Jianye Yang Feilong Li Zhenghao Xu Yaji Yang Haotian Zhou Kainan Li Chengdong Xiong Wei Huang Ning Hu Xulin Hu 《Bone Research》 SCIE CAS CSCD 2024年第2期270-288,共19页
Osteomyelitis is a devastating disease caused by microbial infection in deep bone tissue.Its high recurrence rate and impaired restoration of bone deficiencies are major challenges in treatment.Microbes have evolved n... Osteomyelitis is a devastating disease caused by microbial infection in deep bone tissue.Its high recurrence rate and impaired restoration of bone deficiencies are major challenges in treatment.Microbes have evolved numerous mechanisms to effectively evade host intrinsic and adaptive immune attacks to persistently localize in the host,such as drug-resistant bacteria,biofilms,persister cells,intracellular bacteria,and small colony variants(SCVs).Moreover,microbial-mediated dysregulation of the bone immune microenvironment impedes the bone regeneration process,leading to impaired bone defect repair.Despite advances in surgical strategies and drug applications for the treatment of bone infections within the last decade,challenges remain in clinical management.The development and application of tissue engineering materials have provided new strategies for the treatment of bone infections,but a comprehensive review of their research progress is lacking.This review discusses the critical pathogenic mechanisms of microbes in the skeletal system and their immunomodulatory effects on bone regeneration,and highlights the prospects and challenges for the application of tissue engineering technologies in the treatment of bone infections.It will inform the development and translation of antimicrobial and bone repair tissue engineering materials for the management of bone infections. 展开更多
关键词 IMPAIRED INFECTIONS treatment
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Cohort analysis of pediatric intussusception score to diagnose intussusception
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作者 Punwadee Rukwong Nathawit Wangviwat +1 位作者 Teerasak Phewplung Palittiya Sintusek 《World Journal of Clinical Cases》 SCIE 2023年第21期5014-5022,共9页
BACKGROUND Intussusception is a primary cause of intestinal obstruction in young children.Delayed diagnosis is associated with increased morbidity.Ultrasonography(USG)is the gold standard for diagnosis,but it is opera... BACKGROUND Intussusception is a primary cause of intestinal obstruction in young children.Delayed diagnosis is associated with increased morbidity.Ultrasonography(USG)is the gold standard for diagnosis,but it is operator dependent and often unavailable in limited resource areas.AIM To study the clinical characteristics of intussusception including management and evaluation of the diagnostic accuracy of abdominal radiography(AR)and the promising parameters found in the pediatric intussusception score(PIS).METHODS Children with suspected intussusception in our center from 2006 to 2018 were recruited.Clinical manifestations,investigations,and treatment outcomes were recorded.AR images were interpreted by a pediatric radiologist.Diagnosis of intussusception was composed of compatible USG and response with reduction.The diagnostic value of the proposed PIS was evaluated.RESULTS Ninety-seven children were diagnosed with intussusception(2.06±2.67 years,62.9%male),of whom 74%were<2 years old and 37.1%were referrals.The common manifestations of intussusception were irritability or abdominal pain(86.7%)and vomiting(59.2%).Children aged 6 mo to 2 years,pallor,palpable abdominal mass,and positive AR were the parameters that could discriminate intussusception from other mimics(P<0.05).Referral case was the only significant parameter for failure to reduce intussusception(P<0.05).AR to diagnose intussusception had a sensitivity of 59.2%.The proposed PIS,a combination of clinical irritability or abdominal pain,children aged 6 mo to 2 years,and compatible AR,had a sensitivity of 85.7%.CONCLUSION AR alone provides poor screening for intussusception.The proposed PIS in combination with common manifestations and AR data was shown to increase the diagnostic sensitivity,leading to timely clinical management. 展开更多
关键词 intussusception PEDIATRIC SPECIFICITY Sensitivity Abdominal radiography Diagnosis
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Epidemiological and clinical features,treatment status,and economic burden of traumatic spinal cord injury in China:a hospital-based retrospective study 被引量:4
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作者 Hengxing Zhou Yongfu Lou +32 位作者 Lingxiao Chen Yi Kang Lu Liu Zhiwei Cai David BAnderson Wei Wang Chi Zhang Jinghua Wang Guangzhi Ning Yanzheng Gao Baorong He Wenyuan Ding Yisheng Wang Wei Mei Yueming Song Yue Zhou Maosheng Xia Huan Wang Jie Zhao Guoyong Yin Tao Zhang Feng Jing Rusen Zhu Bin Meng Li Duan Zhongmin Zhang Desheng Wu Zhengdong Cai Lin Huang Zhanhai Yin Kainan Li Shibao Lu Shiqing Feng 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第5期1126-1132,共7页
Traumatic spinal cord injury is potentially catastrophic and can lead to permanent disability or even death.China has the largest population of patients with traumatic spinal cord injury.Previous studies of traumatic ... Traumatic spinal cord injury is potentially catastrophic and can lead to permanent disability or even death.China has the largest population of patients with traumatic spinal cord injury.Previous studies of traumatic spinal cord injury in China have mostly been regional in scope;national-level studies have been rare.To the best of our knowledge,no national-level study of treatment status and economic burden has been performed.This retrospective study aimed to examine the epidemiological and clinical features,treatment status,and economic burden of traumatic spinal cord injury in China at the national level.We included 13,465 traumatic spinal cord injury patients who were injured between January 2013 and December 2018 and treated in 30 hospitals in 11 provinces/municipalities representing all geographical divisions of China.Patient epidemiological and clinical features,treatment status,and total and daily costs were recorded.Trends in the percentage of traumatic spinal cord injuries among all hospitalized patients and among patients hospitalized in the orthopedic department and cost of care were assessed by annual percentage change using the Joinpoint Regression Program.The percentage of traumatic spinal cord injuries among all hospitalized patients and among patients hospitalized in the orthopedic department did not significantly change overall(annual percentage change,-0.5%and 2.1%,respectively).A total of 10,053(74.7%)patients underwent surgery.Only 2.8%of patients who underwent surgery did so within 24 hours of injury.A total of 2005(14.9%)patients were treated with high-dose(≥500 mg)methylprednisolone sodium succinate/methylprednisolone(MPSS/MP);615(4.6%)received it within 8 hours.The total cost for acute traumatic spinal cord injury decreased over the study period(-4.7%),while daily cost did not significantly change(1.0%increase).Our findings indicate that public health initiatives should aim at improving hospitals’ability to complete early surgery within 24 hours,which is associated with improved sensorimotor recovery,increasing the awareness rate of clinical guidelines related to high-dose MPSS/MP to reduce the use of the treatment with insufficient evidence. 展开更多
关键词 China clinical features COSTS EPIDEMIOLOGY methylprednisolone sodium succinate METHYLPREDNISOLONE retrospective study traumatic spinal cord injury treatment
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Circular RNAs in breast cancer diagnosis,treatment and prognosis 被引量:1
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作者 XIAOJIA HUANG CAILU SONG +2 位作者 JINHUI ZHANG LEWEI ZHU HAILIN TANG 《Oncology Research》 SCIE 2024年第2期241-249,共9页
Breast cancer has surpassed lung cancer to become the most common malignancy worldwide.The incidence rate and mortality rate of breast cancer continue to rise,which leads to a great burden on public health.Circular RN... Breast cancer has surpassed lung cancer to become the most common malignancy worldwide.The incidence rate and mortality rate of breast cancer continue to rise,which leads to a great burden on public health.Circular RNAs(circRNAs),a new class of noncoding RNAs(ncRNAs),have been recognized as important oncogenes or suppressors in regulating cancer initiation and progression.In breast cancer,circRNAs have significant roles in tumorigenesis,recurrence and multidrug resistance that are mediated by various mechanisms.Therefore,circRNAs may serve as promising targets of therapeutic strategies for breast cancer management.This study reviews the most recent studies about the biosynthesis and characteristics of circRNAs in diagnosis,treatment and prognosis evaluation,as well as the value of circRNAs in clinical applications as biomarkers or therapeutic targets in breast cancer.Understanding the mechanisms by which circRNAs function could help transform basic research into clinical applications and facilitate the development of novel circRNA-based therapeutic strategies for breast cancer treatment. 展开更多
关键词 CircRNA Breast cancer DIAGNOSIS treatment BIOMARKER
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Esophageal cancer screening,early detection and treatment:Current insights and future directions 被引量:3
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作者 Hong-Tao Qu Qing Li +7 位作者 Liang Hao Yan-Jing Ni Wen-Yu Luan Zhe Yang Xiao-Dong Chen Tong-Tong Zhang Yan-Dong Miao Fang Zhang 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第4期1180-1191,共12页
Esophageal cancer ranks among the most prevalent malignant tumors globally,primarily due to its highly aggressive nature and poor survival rates.According to the 2020 global cancer statistics,there were approximately ... Esophageal cancer ranks among the most prevalent malignant tumors globally,primarily due to its highly aggressive nature and poor survival rates.According to the 2020 global cancer statistics,there were approximately 604000 new cases of esophageal cancer,resulting in 544000 deaths.The 5-year survival rate hovers around a mere 15%-25%.Notably,distinct variations exist in the risk factors associated with the two primary histological types,influencing their worldwide incidence and distribution.Squamous cell carcinoma displays a high incidence in specific regions,such as certain areas in China,where it meets the cost-effect-iveness criteria for widespread endoscopy-based early diagnosis within the local population.Conversely,adenocarcinoma(EAC)represents the most common histological subtype of esophageal cancer in Europe and the United States.The role of early diagnosis in cases of EAC originating from Barrett's esophagus(BE)remains a subject of controversy.The effectiveness of early detection for EAC,particularly those arising from BE,continues to be a debated topic.The variations in how early-stage esophageal carcinoma is treated in different regions are largely due to the differing rates of early-stage cancer diagnoses.In areas with higher incidences,such as China and Japan,early diagnosis is more common,which has led to the advancement of endoscopic methods as definitive treatments.These techniques have demonstrated remarkable efficacy with minimal complications while preserving esophageal functionality.Early screening,prompt diagnosis,and timely treatment are key strategies that can significantly lower both the occurrence and death rates associated with esophageal cancer. 展开更多
关键词 Esophageal cancer SCREENING Early detection treatment Endoscopic mucosal resection Endoscopic submucosal dissection
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