BACKGROUND Percutaneous transhepatic stent placement has become a common strategy for the postoperative treatment of portal vein(PV)/superior mesenteric veins(SMV)stenosis/occlusion.It has been widely used after liver...BACKGROUND Percutaneous transhepatic stent placement has become a common strategy for the postoperative treatment of portal vein(PV)/superior mesenteric veins(SMV)stenosis/occlusion.It has been widely used after liver transplantation surgery;however,reports on stent placement for acute PV/SMV stenosis after pancreatic surgery within postoperative 3 d are rare.CASE SUMMARY Herein,we reported a case of intestinal edema and SMV stenosis 2 d after pancreatic surgery.The patient was successfully treated using stent grafts.Although the stenosis resolved after stent placement,complications,including bleeding,pancreatic fistula,bile leakage,and infection,made the treatment highly challenging.The use of anticoagulants was adjusted multiple times to prevent venous thromboembolism and the risk of bleeding.After careful treatment,the patient stabilized,and stent placement effectively managed postoperative PV/SMV stenosis.CONCLUSION Stent placement is effective and feasible for treating acute PV/SMV stenosis after pancreatic surgery even within postoperative 3 d.展开更多
A miniaturized neutron spin flipper based on a high-TC superconductor film,developed at the China Spallation Neutron Source(CSNS),is presented.A neutron spin flipper is an essential component for performing polarized ...A miniaturized neutron spin flipper based on a high-TC superconductor film,developed at the China Spallation Neutron Source(CSNS),is presented.A neutron spin flipper is an essential component for performing polarized neutron experiments and,as such,constitutes a high priority for developing CSNS’s polarized neutron capability.To provide the beamlines with a universal neutron spin flipper operating over a wide wavelength band,the neutron spin flipper utilizes non-adiabatic spin flipping during transit through opposite magnetic fields that are mutually shielded by the superconductor Meissner effect.A compact vacuum heat shield and a low-power consumption sterling refrigerator maintained the superconducting condition while reducing the size and power input of the flipper.The prototype device was tested at the CSNS BL-20,which demonstrated a flipping efficiency of 99%at 4 A°.展开更多
Objective: To explore the different effects of paliperidone and risperidone therapy on blood lipid and Hcy metabolism as well as endocrine hormones in patients with schizophrenia. Methods: A total of 118 patients with...Objective: To explore the different effects of paliperidone and risperidone therapy on blood lipid and Hcy metabolism as well as endocrine hormones in patients with schizophrenia. Methods: A total of 118 patients with schizophrenia who were treated in the hospital between December 2014 and February 2017 were collected as the research subjects and divided into control group and study group by random number table, each group with 59 cases. Control group received risperidone therapy, observation group received paliperidone therapy, and the differences in the levels of blood lipid indexes, Hcy metabolism indexes and endocrine hormones were compared between the two groups before and after treatment. Results:There was no statistically significant difference in the levels of blood lipid indexes, Hcy and endocrine hormones between the two groups before treatment. After treatment, lipid indexes TG and TC levels in peripheral blood of study group were lower than those of control group while HDL-C content was higher than that of control group;Hcy level in serum of study group was lower than that of control group;endocrine hormones FT3, FT4, T and E2 levels in serum of study group were higher than those of control group. Conclusion: paliperidone therapy for schizophrenia can be more effective than risperidone in regulating blood lipid metabolism, Hcy metabolism and endocrine hormones.展开更多
BACKGROUND Hypoplasia of bilateral cruciate ligaments is a rare congenital malformation.The diagnosis of such diseases and indications for the various treatment options require further analysis and discussion.CASE SUM...BACKGROUND Hypoplasia of bilateral cruciate ligaments is a rare congenital malformation.The diagnosis of such diseases and indications for the various treatment options require further analysis and discussion.CASE SUMMARY The patient is a 26-year-old Chinese woman who has been suffering from knee pain since the age of 8 years,2-3 episodes a year.Three years ago,due to the practice of advanced yoga poses,the frequency of left knee pain increased,requiring prompt medical treatment.Magnetic resonance imaging demonstrated an absence of both anterior and posterior cruciate ligaments of both knees with abnormal posterior tilting of the tibial plateau.Bilateral subluxation of the knee joint was also found,therefore tibial osteotomy was performed.The patient reported at the 24 mo follow-up that the frequency of pain and instability had been reduced and function restored.CONCLUSION Osteotomy may be an effective method to treat patients with congenital cruciate ligament deficiency with posterior tibial plateau tilting.The diagnosis of congenital cruciate ligament deficiency shall be based on the combination of patient’s medical history,clinical manifestations,and findings from imaging to avoid possible misdiagnosis.Based on the symptoms,frequency of attacks,and intent of the individual,appropriate treatment options shall be identified.展开更多
BACKGROUND Trigger finger at the wrist,which occurs with finger movement,is an uncommon presentation.Few reports describing cases of trigger finger at the wrist have been published.Thus,we present a case of an intramu...BACKGROUND Trigger finger at the wrist,which occurs with finger movement,is an uncommon presentation.Few reports describing cases of trigger finger at the wrist have been published.Thus,we present a case of an intramuscular lipoma arising from an anomalous flexor digitorum muscle belly in a 48-year-old female patient causing painful finger triggering at the wrist and carpal tunnel syndrome(CTS).CASE SUMMARY A 48-year-old woman with complaints of a catching sensation during wrist motion and a progressive tingling sensation on the palmar aspect of the right hand for approximately 2 years was referred to our hospital.Triggering of the index to middle finger was evident with a palpable and audible clunk over the carpal tunnel during passive motion.Tinel’s sign was positive over the carpal tunnel of the right wrist with a positive Phalen’s test.Nerve conduction studies of the median nerve demonstrated a right CTS.Ultrasound examination revealed a 2.5 cm×2.0 cm subcutaneous hyperechoic mass with no obvious blood flow at the wrist of the right arm.Surgical excision of the tumor and muscle mass led to a resolution of the patient’s symptoms,and any triggering or discomfort disappeared.The patient has had no evidence of recurrence at more than 1 year of follow-up.CONCLUSION Triggering of the fingers at the wrist is rare. It must be noted that there are manypossible causes and types of triggering or clicking around the wrist. Accuratediagnosis is mandatory to avoid inaccurate treatment of patients with triggerwrist. During the diagnosis and treatment of CTS, attention should be paid to thevariation of tendon tissue in the carpal tunnel, to avoid only focusing on therelease of transverse carpal ligament and ignoring the removal of anomalousmuscle belly.展开更多
基金Supported by the National Natural Science Foundation of China,No.82173074the Beijing Natural Science Foundation,No.7232127+3 种基金the National High Level Hospital Clinical Research Funding,No.2022-PUMCH-D-001 and No.2022-PUMCH-B-004the CAMS Innovation Fund for Medical Sciences,No.2021-I2M-1-002the Nonprofit Central Research Institute Fund of Chinese Academy of Medical Sciences,No.2018PT32014Fundamental Research Funds for the Central Universities,No.3332019025.
文摘BACKGROUND Percutaneous transhepatic stent placement has become a common strategy for the postoperative treatment of portal vein(PV)/superior mesenteric veins(SMV)stenosis/occlusion.It has been widely used after liver transplantation surgery;however,reports on stent placement for acute PV/SMV stenosis after pancreatic surgery within postoperative 3 d are rare.CASE SUMMARY Herein,we reported a case of intestinal edema and SMV stenosis 2 d after pancreatic surgery.The patient was successfully treated using stent grafts.Although the stenosis resolved after stent placement,complications,including bleeding,pancreatic fistula,bile leakage,and infection,made the treatment highly challenging.The use of anticoagulants was adjusted multiple times to prevent venous thromboembolism and the risk of bleeding.After careful treatment,the patient stabilized,and stent placement effectively managed postoperative PV/SMV stenosis.CONCLUSION Stent placement is effective and feasible for treating acute PV/SMV stenosis after pancreatic surgery even within postoperative 3 d.
基金supported by the National Key Research and Development Program of China(No.2020YFA0406000)the National Natural Science Foundation of China(Nos.12075265 and U2032219)+2 种基金The 3He spin filter implemented in the experiment was developed within the Scientific Instrument Developing Project of the Chinese Academy of Sciences(No.ZDKYYQ20190004)the Dongguan Introduction Program of Leading Innovative and Entrepreneurial Talents(No.20191122)The magnetic field simulation and analysis work were supported by Guangdong Natural Science Funds for Distinguished Young Scholars.
文摘A miniaturized neutron spin flipper based on a high-TC superconductor film,developed at the China Spallation Neutron Source(CSNS),is presented.A neutron spin flipper is an essential component for performing polarized neutron experiments and,as such,constitutes a high priority for developing CSNS’s polarized neutron capability.To provide the beamlines with a universal neutron spin flipper operating over a wide wavelength band,the neutron spin flipper utilizes non-adiabatic spin flipping during transit through opposite magnetic fields that are mutually shielded by the superconductor Meissner effect.A compact vacuum heat shield and a low-power consumption sterling refrigerator maintained the superconducting condition while reducing the size and power input of the flipper.The prototype device was tested at the CSNS BL-20,which demonstrated a flipping efficiency of 99%at 4 A°.
文摘Objective: To explore the different effects of paliperidone and risperidone therapy on blood lipid and Hcy metabolism as well as endocrine hormones in patients with schizophrenia. Methods: A total of 118 patients with schizophrenia who were treated in the hospital between December 2014 and February 2017 were collected as the research subjects and divided into control group and study group by random number table, each group with 59 cases. Control group received risperidone therapy, observation group received paliperidone therapy, and the differences in the levels of blood lipid indexes, Hcy metabolism indexes and endocrine hormones were compared between the two groups before and after treatment. Results:There was no statistically significant difference in the levels of blood lipid indexes, Hcy and endocrine hormones between the two groups before treatment. After treatment, lipid indexes TG and TC levels in peripheral blood of study group were lower than those of control group while HDL-C content was higher than that of control group;Hcy level in serum of study group was lower than that of control group;endocrine hormones FT3, FT4, T and E2 levels in serum of study group were higher than those of control group. Conclusion: paliperidone therapy for schizophrenia can be more effective than risperidone in regulating blood lipid metabolism, Hcy metabolism and endocrine hormones.
文摘BACKGROUND Hypoplasia of bilateral cruciate ligaments is a rare congenital malformation.The diagnosis of such diseases and indications for the various treatment options require further analysis and discussion.CASE SUMMARY The patient is a 26-year-old Chinese woman who has been suffering from knee pain since the age of 8 years,2-3 episodes a year.Three years ago,due to the practice of advanced yoga poses,the frequency of left knee pain increased,requiring prompt medical treatment.Magnetic resonance imaging demonstrated an absence of both anterior and posterior cruciate ligaments of both knees with abnormal posterior tilting of the tibial plateau.Bilateral subluxation of the knee joint was also found,therefore tibial osteotomy was performed.The patient reported at the 24 mo follow-up that the frequency of pain and instability had been reduced and function restored.CONCLUSION Osteotomy may be an effective method to treat patients with congenital cruciate ligament deficiency with posterior tibial plateau tilting.The diagnosis of congenital cruciate ligament deficiency shall be based on the combination of patient’s medical history,clinical manifestations,and findings from imaging to avoid possible misdiagnosis.Based on the symptoms,frequency of attacks,and intent of the individual,appropriate treatment options shall be identified.
文摘BACKGROUND Trigger finger at the wrist,which occurs with finger movement,is an uncommon presentation.Few reports describing cases of trigger finger at the wrist have been published.Thus,we present a case of an intramuscular lipoma arising from an anomalous flexor digitorum muscle belly in a 48-year-old female patient causing painful finger triggering at the wrist and carpal tunnel syndrome(CTS).CASE SUMMARY A 48-year-old woman with complaints of a catching sensation during wrist motion and a progressive tingling sensation on the palmar aspect of the right hand for approximately 2 years was referred to our hospital.Triggering of the index to middle finger was evident with a palpable and audible clunk over the carpal tunnel during passive motion.Tinel’s sign was positive over the carpal tunnel of the right wrist with a positive Phalen’s test.Nerve conduction studies of the median nerve demonstrated a right CTS.Ultrasound examination revealed a 2.5 cm×2.0 cm subcutaneous hyperechoic mass with no obvious blood flow at the wrist of the right arm.Surgical excision of the tumor and muscle mass led to a resolution of the patient’s symptoms,and any triggering or discomfort disappeared.The patient has had no evidence of recurrence at more than 1 year of follow-up.CONCLUSION Triggering of the fingers at the wrist is rare. It must be noted that there are manypossible causes and types of triggering or clicking around the wrist. Accuratediagnosis is mandatory to avoid inaccurate treatment of patients with triggerwrist. During the diagnosis and treatment of CTS, attention should be paid to thevariation of tendon tissue in the carpal tunnel, to avoid only focusing on therelease of transverse carpal ligament and ignoring the removal of anomalousmuscle belly.