Effect of nutritional support + intravenous chemotherapy on anti-tumor immunity and cancer cell proliferation in patients with colon cancer complicated by incomplete intestinal obstruction

Objective:To study the effect of nutritional support + intravenous chemotherapy on anti-tumor immunity and cancer cell proliferation in patients with colon cancer complicated by incomplete intestinal obstruction.Methods: Patients with colon cancer complicated by incomplete intestinal obstruction who were treated in Midi Branch, Pangang Group General Hospital between March 2015 and October 2017 were selected and randomly divided into the nutrition group who accepted nutritional support + FOLFOX4 intravenous chemotherapy and the control group who accepted FOLFOX4 intravenous chemotherapy alone, and they underwent surgery after two cycles of chemotherapy. The contents of immune cells in peripheral blood and the contents of immune cytokines in serum were determined before chemotherapy and two cycles after chemotherapy;the expression levels of proliferation genes in colon cancer lesions were determined after surgical resection.Results:Compared with those of same group before chemotherapy, peripheral blood Treg, Th9, Th17 and Th22 contents as well as serum IL-4, IL-9, IL-10, TGF-β1, IL-17 and IL-22 contents of nutrition group were decreased significantly after chemotherapywhereas peripheral blood Treg, Th9, Th17 and Th22 contents as well as serum IL-4, IL-9, IL-10, TGF-β1, IL-17 and IL-22 contents of control group did not change significantly after chemotherapy, and compared with those after chemotherapy between groups, peripheral blood Treg, Th9, Th17 and Th22 contents as well as serum IL-4, IL-9, IL-10, TGF-β1, IL-17 and IL-22 contents of nutrition group were significantly lower than those of control group, and CyclinD1, Bcl-2, USP22, VEGF and N-cadherin mRNA expression were not different from those of control group.Conclusion:Nutritional support + intravenous chemotherapy can improve the anti-tumor immune response without affecting the proliferation of cancer cells in the lesion of patients with colon cancer complicated by incomplete intestinal obstruction.

Acute colonic pseudo-obstruction: A systematic review of aetiology and mechanisms

To critically review the literature addressing the definition, epidemiology, aetiology and pathophysiology of acute colonic pseudo-obstruction (ACPO). METHODSA systematic search was performed to identify articles investigating the aetiology and pathophysiology of ACPO. A narrative synthesis of the evidence was undertaken. RESULTSNo consistent approach to the definition or reporting of ACPO has been developed, which has led to overlapping investigation with other conditions. A vast array of risk factors has been identified, supporting a multifactorial aetiology. The pathophysiological mechanisms remain unclear, but are likely related to altered autonomic regulation of colonic motility, in the setting of other predisposing factors. CONCLUSIONFuture research should aim to establish a clear and consistent definition of ACPO, and elucidate the pathophysiological mechanisms leading to altered colonic function. An improved understanding of the aetiology of ACPO may facilitate the development of targeted strategies for its prevention and treatment.

Retrospective Studies on Clinical Features of Melanosis of the Colon and Its Correlation with the Polypus and Carcinoma of Large Intestine

OBJECTIVE To investigate the clinical characteristics of melanosis of the colon （MC） and its correlation with polypus and carcinoma of the large intestine. METHODS Clinical feature and colonoscopic findings of 156 MC patients were retrospectively analyzed. Final diagnosis of MC case was made after colonoscopic and pathological examination, and data of the case history was recorded. RESULTS The overall detection rate of MC was 1.12%, with 0.46% in males, 0.66% in females. An 82.69% of the patients suffered various constipations and had a history of taking cathartics. The clinical manifestation of total-colon melanosis occurred in 83.97% of the patients. There was no significant difference between the rate of concomitant polypus （27.56%） in the MC patients and the detection rate of polypus in the patients who underwent a synchronous colonoscopy （χ^2 = 1.205, P = 0.298）. Also there was no significant difference between the detection rate of carcinoma of the large intestine （8.97%） in MC patients and the detection rate of the same disease in the patients who underwent synchronous colonoscopy （χ^2 = 0.268, P = 0.604）. A logistic regression analysis has shown that the older the age of MC patients is, the more opportunities of MC and the concomitant polypus would occur. CONCLUSION MC may be related to constipations and a long-term administration of cathartics, among which total-colon melanosis ranks first in the cases. There is an earlier age of onset in the females, with a higher detection rate. The older the age of the patients is, the higher the detection rate of MC is, and the more possibility the onset of the concomitant polypus.

Oncologic safety of colonic stenting as a bridge to surgery in leftsided malignant colonic obstruction:Current evidence and prospects

Approximately 7%-29%of patients with colorectal cancer present with colonic obstruction.The concept of self-expandable metal stent(SEMS)insertion as a bridge to surgery(BTS)is appealing.However,concerns on colonic stenting possibly impairing oncologic outcomes have been raised.This study aimed to review current evidence on the short-and long-term oncologic outcomes of SEMS insertion as BTS for left-sided malignant colonic obstruction.For short-term outcomes,colonic stenting facilitates a laparoscopic approach,increases the likelihood of primary anastomosis without a stoma,and may decrease postoperative morbidity.However,SEMS-related perforation also increases local recurrence and impairs overall survival.Moreover,colonic stenting may cause negative oncologic outcomes even without perforation.SEMS can induce shear forces on the tumor,leading to increased circulating cancer cells and aggressive pathological characteristics,including perineural and lymphovascular invasion.The conflicting evidence has led to discordant guidelines.Well-designed collaborative studies that integrate both oncologic outcomes and data on basic research(e.g.,alteration of circulating tumors)are needed to clarify the actual benefit of colonic stenting as BTS.

Total colorectal and terminal ileal duplication presenting as intussusception and intestinal obstruction

Colonic intussusception and gastrointestinal duplication are diseases that arise in young children. The clinical presentation of adult cases of intussusception and enteric duplication is non-specific and thus poses a diagnostic challenge. A computed tomography (CT) scan is recommended in adult cases as the most sensitive diagnostic tool and the pathognomonic finding of outer intussuscepiens and central intussusceptum is diagnostic. A septum of a duplicated colon in a non-intussuscepted segment has been rarely reported in the literature. With advancements in radiological imaging technology and the increased availability of CT scanners, the capacity for a correct pre-operative diagnosis has been significantly enhanced. Our current case report illustrates the importance of considering an uncommon etiology for enteric intussusception and duplication as a differential diagnosis of acute abdomen in an adult patient. Our analyses of this patient also highlight the successful use of CT scanning to make this diagnosis.

Management of obstructive colon cancer:Current status,obstacles,and future directions

Approximately 10%–18%of patients with colon cancer present with obstruction at the initial diagnosis.Despite active screening efforts,the incidence of obstructive colon cancer remains stable.Traditionally,emergency surgery has been indicated to treat patients with obstructive colon cancer.However,compared to patients undergoing elective surgery,the morbidity and mortality rates of patients requiring emergency surgery for obstructive colon cancer are high.With the advancement of colonoscopic techniques and equipment,a self-expandable metal stent(SEMS)was introduced to relieve obstructive symptoms,allowing the patient’s general condition to be restored and for them undergo elective surgery.As the use of SEMS placement is growing,controversies about its application in potentially curable diseases have been raised.In this review,the short-and longterm outcomes of different treatment strategies,particularly emergency surgery vs SEMS placement followed by elective surgery in resectable,locally advanced obstructive colon cancer,are described based on the location of the obstructive cancer lesion.Controversies regarding each treatment strategy are discussed.To overcome current obstacles,a potential diagnostic method using circulating tumor DNA and further research directions incorporating neoadjuvant chemotherapy are introduced.

THE SELECTION OF SURGICAL PROCEDURE IN THE TREATMENT OF OBSTRUCTING CARCINOMA OF THE LEFT COLON

From 1973 to 1989, 90 cases of obstructing carcinoma of the left colon were treated with five different operative procedures, the Incidence of anastomotic leakage was 6.7%, the operative mortality was 7. 8%. Among all the patients, 14 cases were treated by primary resection with anastomosis. Anastomotic leakage occurred in 6 cases, and 5 of them were died. Of 25 cases with the traditional staged management, the tumors were resected only in 20 cases, and not resectable in the other 5 patients. 19 with modified Hartmann's procedure and 26 with extended right hemlcolectomy with ileorectal or low ileosigmoid anastomosis gave satisfactory results. In terms of this series, the five-year survival rate in primary resection group was significantly higher than that in staged resection group (P< 0. 05). It is suggested that extented right hemlcolectomy or modified Hartmann' s procedure in cases of acute cancerous obstruction of the left colon would be favord.

Volvulus of the ascending colon in a non-rotated midgut:Plain film and MDCT findings

Colonic volvulus is a relatively uncommon cause of large bowel obstruction usually involving mobile,intraperitoneal,colonic segments.Congenital or acquired anatomic variation may be associated with an increased risk of colonic volvulus which can occasionally involve retro-peritoneal segments.We report a case of 54-year-old female who presented to our Institution to perform a plain abdominal film series for acute onset of cramping abdominal pain.Both the upright and supine films showed signs of acute colonic obstruction which was thought to be due to an internal hernia of the transverse colon into the lesser sac.The patient was therefore submitted to a multi-detector contrast-enhanced computed tomography(CT).CT findings were initially thought to be consistent with the presumed diagnosis of internal hernia but further evaluation and coronal reformatting clearly depicted the presence of a colonic volvulus possibly resulting from a retro-gastric colon.At surgery,a volvulus of the ascending colon was found and a right hemi-colectomy had to be performed.However,a non rotated midgut with a right-sided duodeno-jejunal flexure and a left sided colon was also found at laparotomy and over-looked in the pre-operative CT.Retrospective evaluation of CT images was therefore performed and a number of CT signs of intestinal malrotation could be identified.

Role of self-expanding metal stents in patients with malignant colorectal obstruction: A systematic review and meta-analysis

AIM: To assess the safety and efficacy of self-expandable metal stents(SEMSs) for malignant colorectal obstruction. METHODS: Data regarding technical success, clinical success, and procedure related complications were collected from included studies. Der Simonian-Laird random effects model was used to generate the overall outcome. Thirty international studies with a total of 2058 patients with malignant colorectal obstruction were included. RESULTS: The technical and clinical success rates for SEMS placement were 94%(95%CI: 92-96) and 91%(95%CI: 88-93), respectively. Overall complication rate for SEMS was 23%(95%CI: 18-29). Stent migration8%(95%CI: 6-10) and stent obstruction 8%(95%CI: 6-11) were the most common complications, followed by perforation 5%(95%CI: 4%-7%). Surgical or endoscopic re-interventions were needed in 14%(95%CI: 10-18) of patients. Endoscopic repeat stent placement was required in 8%(95%CI: 6-10), while surgical intervention was needed in 6%(95%CI: 4-8).CONCLUSION: SEMS are effective when used as palliation or bridge to surgery for malignant colorectal obstruction with high technical and clinical success. About 14% of patients require repeat endoscopic or surgical intervention for stent failure or to manage stent related complications.

Management of Recurrent Large Bowel Obstruction Due to Stent Occlusion by ‘Stent-Over-Stent’: A Case Report and Literature Review

Endoscopic stenting for malignant large bowel obstruction is common nowadays. However, recurrent obstruction secondary to stent occlusion due to tumour ingrowth or overgrowth might occur. We reported a case of a 70-year-old man with large bowel obstruction initially treated with colonic stenting. It was complicated with recurrent intestinal obstruction, with colonoscopy showing stent blockage by tumour ingrowth over distal part of the stent. Successful endoscopic implantation of additional colonic stent over the old stent was achieved and intestinal obstruction was resolved afterwards.

Effects of alanine glutamine on inflammatory, immune, antioxidant and nutritional indicators in colon cancer patients

Objective:To explore the effects of alanine glutamine on inflammatory, immune, antioxidant and nutritional indicators in colon cancer patients.Methods: A total of 126 cases of colon cancer with intestinal obstruction were divided into control group (n=63) and observation group (n=63) from May 2015 to May 2017 in Zhongnan Hospital of Wuhan University and Gezhouba Dam group central hospital, the control group only received parenteral nutrition, while the observation group was treated with parenteral nutrition plus alanine glutamine treatment. The expression levels of nutritional indicators, inflammatory factors, immunity and antioxidant were compared between the two groups.Results:Before and 1 d after treatment, there was no significant difference between the two groups of prealbumin (PA), albumin (ALB), tumor necrosis factor-α (TNF-α), C reactive protein (CRP), interferon-γ (IFN-γ) and immunoglobulin (IgA, IgG, IgM), superoxide dismutase (SOD) and malondialdehyde (MDA). 1 d after treatment, the levels of PA, ALB, IFN-γ, IgA, IgG, IgM and SOD in two groups were significantly lower than before the treatment, and TNF- , CRP and MDA were significantly higher than before the treatment. On the 7 d after treatment, the levels of PA, ALB, IFN-γ, IgA, IgG, IgM and SOD in two groups were significantly increased compared with the 1 d after treatment, while TNF-α, CRP and MDA were significantly lower than the 1 d after the treatment, the PA, ALB, IFN-γ, IgA, IgG, IgM and SOD levels in the observation group were significantly higher than those in the control group, while TNF-α, CRP and MDA were significantly lower than those of the control group, there was no significant difference in IgA, IgG and IgM levels between the observation group and that before treatment. There was no significant difference in MDA and SOD levels between the control group and that before tre atment.Conclusions: Parenteral nutrition support in patients with colon cancer with intestinal obstruction, alamyl glutamine, can significantly improve the nutritional level, reduce the inflammatory response, enhance the immune and antioxidant functions.

Enteral stents for the management of malignant colorectal obstruction

Colorectal cancer (CRC) is the 3rd most common cancer in the United States with more than 10000 new cases diagnosed annually. Approximately 20% of patients with CRC will have distant metastasis at time of diagnosis, making them poor candidates for primary surgical resection. Similarly, 8%-25% of patients with CRC will present with bowel obstruction and will require palliative therapy. Emergent surgical decompression has a high mortality and morbidity, and often leads to a colostomy which impairs the patient’s quality of life. In the last decade, there has been an increasing use of colonic stents for palliative therapy to relieve malignant colonic obstruction. Colonic stents have been shown to be effective and safe to treat obstruction from CRC, and are now the therapy of choice in this scenario. In the setting of an acute bowel obstruction in patients with potentially resectable colon cancer, stents may be used to delay surgery and thus allow for decompression, adequate bowel preparation, and optimization of the patient’s condition for curative surgical intervention. An overall complication rate (major and minor) of up to 25% has been associated with the procedure. Long term failure of stents may result from stent migration and tumor ingrowth. In the majority of cases, repeat stenting or surgical intervention can successfully overcome these adverse effects.

Definitive palliation for neoplastic colonic obstruction using enteral stents:Personal case-series with literature review

Acute colonic obstruction due to malignancies is an emergency that requires surgical treatment.Elderly patients or inoperable tumors require intestinal decompression that is a simple colostomy in almost all cases.This“manoeuvre” leads the patient to a percentage of moRality/morbidity and to a bad quality of life due to acceptance of stoma.The introduction of enteral metal stent inserted endoscopically has,in our opinion,provided a new way to obtaining the definitive palliation of inoperable colo-rectal cancer with a simple method.We reported our case-series and we analyzed the current literature and costs of treatments.

Long-term outcome of indwelling colon observed seven years after radical resection for rectosigmoid cancer: A case report

BACKGROUND Indwelling colon is characterized by an excluded segment of the colon after surgical diversion of the fecal stream with colostomy so that contents are unable to pass through this part of the colon.We report a rare case of purulent colonic necrosis that occurred 7 years after surgical colonic exclusion.CASE SUMMARY A 73-year-old male had undergone extended radical resection for rectosigmoid cancer.The invaded ileocecal area and sigmoid colon were removed during the procedure,and the ileum was anastomosed side-to-side with the rectum.The excluded ascending,transverse,and descending colon were sealed at both ends and left in the abdomen.After 7 years,the patient developed persistent abdominal pain and distension.Work-up indicated intestinal obstruction.The patient underwent ultrasound-guided catheter drainage of the descending colon and a large amount of viscous liquid was drained,but the symptoms persisted;therefore,surgery was planned.Intraoperatively,extensive adhesions were found in the abdominal cavity,and the small intestine and the indwelling colon were widely dilated.The dilated colon was 56 cm long,5 cm wide(diameter),and contained about 1500 mL of viscous liquid.The indwelling colon was surgically removed and its histopathological examination revealed colonic congestion and necrosis with hyperplasia of granulation tissue.The bacterial culture of the secretions was negative.The patient recovered after the operation.CONCLUSION Although colonic exclusion is routinely performed,this report aimed to increase awareness regarding the possible long-term complications of indwelling colon.

Malignant obstruction in the ileocecal region treated by selfexpandable stent placement under the fluoroscopic guidance: A case report

BACKGROUND Malignant tumors of the ileocecal region often cause intestinal obstruction.Emergency surgery is the main treatment for patients presenting with an obstruction.However,this procedure is associated with a high mortality rate and frequent complications.The placement of colon stents is commonly performed for obstructions in the distal colon and is a less invasive and safer procedure.However,obstructions in the proximal colon are more challenging to treat by stent placement due to the increased distance from the anus.CASE SUMMARY This case report concerns an 88-year-old man with malignant intestinal obstruction in the ileocecal region.He was contraindicated for general anesthesia and surgical enterostomy.The placement of a self-expandable metallic stent seems an alternative to surgery,although stenting in this area is thought to be difficult and few studies have been reported so far.After three attempts at different interventional approaches,a stent was successfully placed in the obstructed segment under fluoroscopic guidance.After the procedure,the patient's abdominal distension and abdominal pain were significantly better than before.CONCLUSION For patients with proximal colonic obstruction,self-expandable metallic stent placement under fluoroscopic guidance could be considered as a feasible treatment to relieve abdominal distension and pain in patients with acute bowel obstruction.It has the characteristics of high safety and high patient tolerance.However,further study is still needed.

不同BMI结直肠癌患者手术效果、预后差异性及术后并发早期炎症性肠梗阻的影响因素分析

目的探讨不同体重指数(BMI)结直肠癌患者手术效果、预后差异性,并分析结直肠癌患者术后并发早期炎症性肠梗阻的影响因素。方法回顾性选取2019年10月至2022年10月达州市中西医结合医院收治的结直肠癌患者86例,将BMI<18.5 kg/m^(2)的患者作为低BMI组(n=21),BMI 18.5~24.0 kg/m^(2)的患者作为正常BMI组(n=42),BMI>24.0 kg/m^(2)的患者作为高BMI组(n=23)。所有患者均采取腹腔镜结直肠癌切除术治疗,对比3组患者一般临床情况(性别、年龄、肿瘤直径、临床分期、转移情况)及手术情况[手术时间、术中出血量、术后首次排气时间、住院时间],对比其随访情况与并发症发生率,并依据是否发生肠梗阻将患者分为肠梗阻组(n=20)与非肠梗阻组(66例),对影响患者术后并发早期炎症性肠梗阻的因素进行单因素分析及多因素Logistic回归分析。结果结肠癌不同BMI(低BMI组、正常BMI组、高BMI组)患者性别、年龄、肿瘤直径、临床分期、转移情况、术中出血量、术后首次排气时间比较,差异均无统计学意义(P>0.05),高BMI组患者手术时间、住院时间分别为(265.42±42.56)min、(15.37±4.54)d,均明显高于低BMI组[(213.64±32.42)min、(11.14±2.42)d]、正常BMI组[(227.25±21.63)min、(13.32±2.35)d],差异均有统计学意义(P<0.05)。高BMI组并发症发生率为86.96%,明显高于低BMI组(19.05%)与正常BMI组(16.67%),差异均有统计学意义(P<0.05),而低BMI组与正常BMI组比较,差异无统计学意义(P>0.05)。结肠癌不同BMI组患者术后肿瘤转移与肿瘤复发率比较,差异均无统计学意义(P>0.05)。单因素分析结果显示:肠梗阻与非肠梗阻组BMI(<24.0 kg/m^(2)、≥24.0 kg/m^(2))、临床分期(Ⅰ期、Ⅱ期)、腹部手术史、肠道准备、术中防粘连剂使用、术后合并其他并发症发生率比较,差异均有统计学意义(P<0.05)。多因素Logistic回归模型发现BMI、术中防粘连剂使用、临床分期、肠道准备及腹部手术史是结直肠癌患者术后并发早期炎症性肠梗阻的影响因素(P<0.05)。结论不同BMI的结直肠癌患者手术效果并无显著差异,但BMI较高会增加患者手术时间、住院时间,BMI较低或较高会增加术后并发症发生率。另外,BMI、术中防粘连剂使用、临床分期、肠道准备及腹部手术史是影响结直肠癌术后并发早期炎症性肠梗阻的因素。

右美托咪定辅助全身麻醉对结肠癌合并肠梗阻患者围术期脑保护的影响分析

目的分析右美托咪定辅助全身麻醉对结肠癌合并肠梗阻患者围术期脑保护的影响。方法120例行手术治疗的结肠癌合并肠梗阻患者,采用随机数字表法将其分为观察组和对照组,每组60例。对照组予以常规静脉吸入复合麻醉,观察组采用右美托咪定辅助全身麻醉。比较两组患者手术前后的简易智力状态检查量表(MMSE)评分以及S100-β蛋白、神经元特异性烯醇化酶(NSE)、白细胞介素(IL)-10、干扰素-γ(INF-γ)、IL-2水平。结果术后1、3 d,观察组MMSE评分分别为(27.61±0.21)、(28.12±0.23)分,均高于对照组的(24.14±0.42)、(26.02±0.15)分,差异有统计学意义(P<0.05)。术后24 h,两组S100β蛋白、NSE水平均有所升高,但相较于对照组的(103.52±8.92)μg/L、(8.92±0.27)ng/ml,观察组的S100β蛋白(72.36±8.25)μg/L、NSE(6.12±0.24)ng/ml更低,差异有统计学意义(P<0.05)。术后24 h,观察组INF-γ(49.82±2.93)pg/ml高于对照组的(39.85±3.15)pg/ml,IL-10(13.93±3.82)pg/ml、IL-2(25.92±6.25)pg/ml低于对照组的(18.92±4.95)、(37.95±7.19)pg/ml,差异具有统计学意义(P<0.05)。结论右美托咪定辅助全身麻醉应用于结肠癌合并肠梗阻手术治疗中具有良好的镇静、镇痛效果,可以使其术中血流动力学稳定,有效保护脑细胞,降低炎症反应,进一步减少脑组织损伤,具有较好的脑保护作用,可减少认知功能损伤,具有较高应用价值。

不同术式治疗左侧结肠癌并发急性肠梗阻的临床效果及预后影响因素分析

目的对比2种手术方式治疗左侧结肠癌并发急性肠梗阻的临床效果并分析患者预后影响因素。方法回顾性分析2020年1月至2023年1月收治的102例左侧结肠癌并发急性肠梗阻患者的临床资料,按治疗方法分为对照组和观察组,每组51例。对照组行左半结肠Ⅰ期切除吻合近端造瘘术,观察组行左半结肠Ⅰ期根治性肠切除吻合术。记录2组患者手术时间、术中出血量、胃管拔除时间、住院时间及术后首次进食、排气、排便时间。记录2组患者随访期间切口出血、切口感染、腹腔感染、吻合口瘘等并发症的发生情况。采用多因素COX回归分析影响左侧结肠癌并发急性肠梗阻患者术后预后的影响因素。结果观察组手术时间短于对照组,术中出血量少于对照组,但胃管拔除时间、首次进食时间、首次排气时间及首次排便时间长于对照组(P<0.01)。2组患者术后并发症总发生率比较差异无统计学意义[58.82%(30/51)vs 52.94%(27/51)](P>0.05)。102例总生存率为91.18%(93/102)。多因素COX回归分析显示:病理类型、TNM分期、术后辅助化疗、手术方式是影响左侧结肠癌并发急性肠梗阻患者预后的危险因素(P<0.05,P<0.01)。结论Ⅰ期根治性肠切除吻合术治疗左侧结肠癌并发急性肠梗阻患者较Ⅰ期切除吻合近端造瘘术具有良好的临床效果,但全身状况不佳或高危患者可采取Ⅰ期切除吻合近端造瘘术,以降低吻合口瘘和术后并发症的发生风险。

结肠肿瘤性肠梗阻中应用腹部CT诊断的临床效果

目的 分析腹部CT诊断结肠肿瘤性肠梗阻的效果。方法 简单随机选取永州市第三人民医院于2022年1月—2024年1月收治的50例疑似结肠肿瘤性肠梗阻患者为研究对象,以病理诊断作为金标准,同时给予患者腹部CT和X线诊断,分析腹部CT在结肠肿瘤性肠梗阻中的诊断效能。结果 病理检查的阳性检出率为90.00%,腹部CT和X线检查的阳性检出率分别为88.00%、70.00%。腹部CT诊断的灵敏度(95.56%)、准确性(94.00%)、阴性预测值(66.67%)显著高于X线诊断(68.89%、64.00%、6.67%),差异有统计学意义(χ^(2)=10.945、13.562、8.505,P均<0.05)。腹部CT诊断、X线诊断的特异度和阳性预测值比较,差异无统计学意义(P均>0.05)。结论 腹部CT诊断在结肠肿瘤性肠梗阻诊断中的效果好,具有较高的应用效能。

肠道支架置入联合腹腔镜手术应用于梗阻性左半结肠癌治疗的临床价值分析

目的分析肠道支架置入联合腹腔镜手术应用于梗阻性左半结肠癌治疗的临床价值。方法随机选取2018年8月—2023年4月上海杨思医院100例梗阻性左半结肠癌患者为研究对象,采用随机对照试验设计,在计算机随机数字生成下将患者分为两组,观察组(n=50)为肠道支架置入联合腹腔镜手术治疗,对照组(n=50)为传统治疗。比较两组患者手术时间、出血量、术后进食时间、住院时间、切口感染率、腹腔感染率、血清肿瘤标志物水平以及Ⅰ期手术吻合成功率。结果两组患者手术时间[(183.19±22.31)min vs(182.46±32.74)min]比较,差异无统计学意义(P>0.05)。观察组术中出血量(67.75±23.13)mL低于对照组的(211.36±11.81)mL,差异有统计学意义(t=39.101,P<0.05)。观察组术后住院时间及术后进食时间均短于对照组,差异有统计学意义(P均<0.05)。术后,观察组甲胎蛋白、癌胚抗原均低于对照组,差异有统计学意义(P均<0.05)。观察组一期手术吻合成功率高于对照组,感染总发生率均低于对照组,差异有统计学意义(P均<0.05)。结论梗阻性左半结肠癌患者采用肠道支架置入联合腹腔镜手术治疗效果较为理想,术后恢复较快,且感染发生率较低,可有效提高一期吻合术的成功率。