Objective To evaluate the safety and efficiency of hemi-semi laminectomy approach for the micro- surgical treatment of spinal schwannomas. Methods A total of 22 patients underwent hemi-semi laminectomy for the micros...Objective To evaluate the safety and efficiency of hemi-semi laminectomy approach for the micro- surgical treatment of spinal schwannomas. Methods A total of 22 patients underwent hemi-semi laminectomy for the microsurgical removal of spinal schwannomas during a period of 2009 and 2011 in Affiliated Hospital of Nantong University. We ret- rospectively analyzed the clinical outcomes of these patients. Results Of them, 5 cases were diagnosed with cervical schwannomas, 9 with thoracic schwarmomas, and 8 with lumbar schwannomas. All the tumors including two dumbbell schwannomas were totally removed without major complications. Postoperatively, all patients were followed up from 6 to 36 months. The symp- toms and signs were obviously improved, and no tumor recurrence or spinal deformity occurred. Conclusion Hemi-semi laminectomy is a safe and effective method for resection of spinal schwan- nomas展开更多
Objective.To describe the effects of surgical treatment a nd complications in46patients with carotid body tumor.Method.Retrospe ctive study on surgical treatment and complications was carried out in46case s of CBT whi...Objective.To describe the effects of surgical treatment a nd complications in46patients with carotid body tumor.Method.Retrospe ctive study on surgical treatment and complications was carried out in46case s of CBT which were surgically treated with different kind of procedures.Resul t.All procedures performed successfully except that the CBT was not excised in 4cases.No operative mortality was observed.There were2postoperative hemiple gia,4hypoglossal nerve impairment ,2glossopharyngeal nerve impairment ,1va gus nerve impairment ,and1accessory nerve impairment.One patient presented p ostoperative cranial nerve impairment in glossopharyngeal,vagus and hypoglossa l nerves.Two patients developed local recurrence during the long-term follow-up.Conclusion.Complete surgical excision was possible in each patient if th e diagnosis had been cor-rectly made through selective preoperative angiography ,vessel ultrasound Doppler and other examinations.Reasonable surgical procedur e and Matas training were necessary to the successful surgical treatment and t hus decrease the complicative incidence rate of carotid chemodectomas.展开更多
AIM:To assess the long-term outcome of endoscopic hemorrhoid ligation (EHL) for the treatment of symptomatic internal hemorrhoids.METHODS:A total of 759 consecutive patients (415 males and 344 females) were enrolled.C...AIM:To assess the long-term outcome of endoscopic hemorrhoid ligation (EHL) for the treatment of symptomatic internal hemorrhoids.METHODS:A total of 759 consecutive patients (415 males and 344 females) were enrolled.Clinical presentations were rectal bleeding (593 patients) and mucosal prolapse (166 patients).All patients received EHL at outpatient clinics.Hemorrhoid severity was classified by Goligher's grading.The mean follow-up period was 55.4 mo (range,45-92 mo).RESULTS:The number of band ligations averaged 2.35 in the first session for bleeding and 2.69 for prolapsed patients.Bleeding was controlled in 587 (98.0%) patients,while prolapse was reduced in 137 (82.5%) patients.After treatment,93 patients experienced anal pain and 48 patients had mild bleeding.Patient subjective satisfaction was 93.6%.Repeat treatment or surgery was performed if symptoms were not relieved in the first session.In the bleeding group,the recurrence rate was 3.7% (22 patients) at 1 year,and 6.6%and 13.0% at 2 and 5 years.In the prolapsed group,the recurrence rate was 3.0%,9.6% and 16.9% at 1,2 and 5 years,respectively.CONCLUSION:EHL is an easy and well-tolerated procedure for the treatment of symptomatic internal hemorrhoids,with good long-term results.展开更多
AIM:To assess the long-term efficacy of seton drainage with infliximab maintenance therapy in treatment of stricture for perianal Crohn’s disease(CD). METHODS:Sixty-two patients with perianal CD who required surgical...AIM:To assess the long-term efficacy of seton drainage with infliximab maintenance therapy in treatment of stricture for perianal Crohn’s disease(CD). METHODS:Sixty-two patients with perianal CD who required surgical treatment with or without infliximab between September 2000 and April 2010 were identified from our clinic’s database.The activities of the perianal lesions were evaluated using the modified perianal CD activity index(mPDAI)score.The primary endpoint was a clinical response at 12-15 wk after surgery as a shortterm efficacy.Secondary endpoints were recurrence as reflected in the mPDAI score,defined as increased points in every major element.The clinical responses were classified as completely healed(mPDAI=0),partially improved(mPDAI score decreased more than 4 points),and failure or recurrence(mPDAI score increased or decreased less than 3 points). RESULTS:There were 43 males and 19 females,of whom 26 were consecutively treated with infliximab after surgery as maintenance therapy.Complete healing was not seen.Failure was seen in 10/36(27.8%) patients without infliximab and 4/26(15.4%)patients with infliximab(P=0.25).Partial improvement was seen in 26/36(72.2%)patients without infliximab and 22/26(88.5%)patients with infliximab(P=0.25). Short-term improvement was achieved in 48/62(77.4%) patients.Although the mPDAI score improved significantly with surgery regardless of infliximab,it decreased more from baseline in patients with infliximab(50.0%) than in those without infliximab(28.6%),(P=0.003). In the long-term,recurrence rates were low regardless of infliximab in patients without anorectal stricture.In patients with anorectal stricture,cumulative recurrence incidences increased gradually and exceeded 40%at 5 years regardless of infliximab.No efficacy of infliximab treatment was found(P=0.97).Although the cumulative rate of ostomy creation was also low in patients without stricture and high in patients with stricture,no protective efficacy was found with infliximab treatment(P =0.6 without stricture,P=0.22 with stricture). CONCLUSION:Infliximab treatment was demonstrated to have short-term efficacy for perianal lesions.Longterm benefit with infliximab was not proven,at least in patients with anorectal stricture.展开更多
AIM： To evaluate the clinical usefulness of lSF-fluorodeoxyglucose positron emission and computed tomography QSF-FDG PET/CT） in restaging of esophageal cancer after surgical resection and radiotherapy. METHODS： Bet...AIM： To evaluate the clinical usefulness of lSF-fluorodeoxyglucose positron emission and computed tomography QSF-FDG PET/CT） in restaging of esophageal cancer after surgical resection and radiotherapy. METHODS： Between January 2007 and Aug 2008, twenty histopathologically diagnosed esophageal cancer patients underwent 25 PET/CT scans （three patients had two scans and one patient had three scans） for restaging after surgical resection and radiotherapy. The standard reference for tumor recurrence was histopathologic confirmation or clinical follow-up for at least ten months after ^18F-FDG PET/CT examinations. RESULTS： Tumor recurrence was confirmed histopathologically in seven of the 20 patients （35%） and by clinical and radiological follow-up in 13 （65%）. ^18F-FDG PET/CT was positive in 14 patients （68.4%） and negative in six （31.6%）. ^18F-FDG PET/CT was true positive in 11 patients, false positive in three and true negative in six. Overall, the accuracy of ^18F-FDG PET/CT was 85%, negative predictive value （NPV） was 100%, and positive predictive value （PPV） was 78.6%.The three false positive PET/CT findings comprised chronic inflammation of mediastinal lymph nodes （n = 2） and anastomosis inflammation （n = 1）. PET/ CT demonstrated distant metastasis in 10 patients. ^18F-FDG PET/CT imaging-guided salvage treatment in nine patients was performed. Treatment regimens were changed in 12 （60%） patients after introducing ^18F-FDG PET/CT into their conventional post-treatment follow-up program. CONCLUSION： Whole body ^18F-FDG PET/CT is effective in detecting relapse of esophageal cancer after surgical resection and radiotherapy. It could also have important clinical impact on the management of esophageal cancer, influencing both clinical restaging and salvage treatment of patients.展开更多
Objective.T o assess the viability of surgical procedures on gynecologic malignant patients o f70years age and older.Methods.Between September1,1983to June30,1 999,57gynecologic malignant patients aged70years and olde...Objective.T o assess the viability of surgical procedures on gynecologic malignant patients o f70years age and older.Methods.Between September1,1983to June30,1 999,57gynecologic malignant patients aged70years and older were treated by surgical procedures.A retrospective study was perf ormed.All patients were analyzed for preexisting medical conditions,length of hospital stay,morbidi-ty,and mortality.Results.Thirty-four patients had a n extensive surgical procedure,while a local surgical procedure was done in23 patients.Forty-one patientshad one or more preexisting medical i llnesses.Minor surgical morbidity occurred in24patientsand majo r surgical morbidity occurred in6patients.There were no differen ces in the types of surgical procedures,mean hospital stay,preexisting medical illness and postoperative complications between the two groups of patients70 to75year older and over age75.The major postoperative complications all occ urred in the extensive surgical procedure group that were higher as compared wit h local operation and postoperative mean stay was also significant-ly length in former group.Conclusions.The extensive surgical procedure can be performed fo r elderly patients with gynecologic malignances.Careful preoperative evaluatio n,monitoring,and meticulous postoperative care are vital to the success.展开更多
To evaluate the effects of carotid endoarterectomy in the treatment of extracranial cerebrovascular disease, 26 cases with internal carotid stenosis were performed by three different kinds of surgical endoarterectomy....To evaluate the effects of carotid endoarterectomy in the treatment of extracranial cerebrovascular disease, 26 cases with internal carotid stenosis were performed by three different kinds of surgical endoarterectomy. The satisfactory results were achieved in all the patients, with no complications and mortality occurring. Endoarterectomy is the effective way to treat the extracranial cerebrovascular disease.展开更多
Background： Laparoendoscopic single-site surgery （LESS） may serve as a potential alternative to conventional laparoscopy and is developing quickly, but still in its infancy. The study is to present our two-year exp...Background： Laparoendoscopic single-site surgery （LESS） may serve as a potential alternative to conventional laparoscopy and is developing quickly, but still in its infancy. The study is to present our two-year experience in transumbilical LESS simple nephrectomy （LESS-SN） for non-functioning kidney, in an effort to evaluate its feasibility, clinical outcomes and potential advantages. Methods： From December 2008 to December 2010, a total of 11 patients with body mass index （BMI）≤30 underwent transumbilical TriPortTM LESS-SN by a single experienced urologist at our institution. The indications for nephrectomy included nonfunctioning kidney associated with ureteropelvic junction stricture （n=l）, ureteral calculi （n=6）, tuberculosis （n=3）, and ureteral stricture （n=l）. Patient demographics perioperative and follow-up data were prospectively collected and analyzed. Results： Ten procedures were successfully completed with one patient converted to open surgery due to uncontrollable bleeding. The mean operative time was 189.2 （ranging 100-320 min） with an estimated blood loss of 204.5 （ranging 50-1 000 ml）. There were two complications of bleeding （1- intra-, 1- post-）. The mean hospitalization after surgery was 7.9 d （ranging 4-17 d） With a regular follow-up of 1, 6, 12, and 24 months after surgery, all patients remained symptom-free with an intra-umbilical scar. Conclusion： Transumbilical LESS simple nephrectomy for nonfunctioning kidney can be accomplished with favorable surgical outcomes and a superiority of cosmesis. However, cases with chronic inflammation are not suitable for initial up-take and should only be attempted by the very experienced laparoscopist.展开更多
Objective： To investigate the clinical efficacy of intraperitoneal chemotherapy before surgery for ovarian cancer. Methods： 60 patients with stages Ⅱ-Ⅳ of ovarian cancer were treated with intraperitoneal chemother...Objective： To investigate the clinical efficacy of intraperitoneal chemotherapy before surgery for ovarian cancer. Methods： 60 patients with stages Ⅱ-Ⅳ of ovarian cancer were treated with intraperitoneal chemotherapy of CAP or TP regimen followed by a surgery treatment and another chemotherapy for 6 cycles. And then the efficiency of the therapy was evaluated by analyzing the changes of ascites, the serum CA-125 and CA-19-9 levels and the findings in the operation, and investigating the recurrence of cancer and the survival. Results： After 1-3 cycles of intraperitoneal chemotherapy, serum levels of CA-125 and CA-19-9 and carcinous ascites significantly reduced in all patients, ascites reduce was over 50% in 98.3% cases; all cases were successfully treated with cytoreduction and it was found during the operation that bulky tumor was reduced and looser so as to be easily isolated and removed; PFS of the patients was prolonged, while the toxicity and side-effects were not so serious as beyond the patient toleration. Conclusion： Intraperitoneal chemotherapy before surgery for ovarian cancer has an active efficacy in clinic, being able to improve conditions of surgery and increase the opportunity of maximal cytoreduction, and prolong survival of the patients, and should be a good selection for the treatment of advanced ovarian cancer.展开更多
Objective To evaluate the transesophageal echocardiography(TEE) and surgical treatment to cardiac papillary fibroelastomas (CPFE). Methods CPFE is a rare benign tumor occuring mainly in valves and often revealed by se...Objective To evaluate the transesophageal echocardiography(TEE) and surgical treatment to cardiac papillary fibroelastomas (CPFE). Methods CPFE is a rare benign tumor occuring mainly in valves and often revealed by serious cerebral, coronary and peripheral embolism or even sudden death. We report a case of mitral PFE diagnosed by transesophageal echocardiography (TEE), and surgical resection was performed. Results Surgical intervention is successful, and the follow-up courses are uneventful. Conclusion TEE is helpful to diagnosis and guiding the operation. Operation is recommended to prevent recurrent embolization complications.展开更多
文摘Objective To evaluate the safety and efficiency of hemi-semi laminectomy approach for the micro- surgical treatment of spinal schwannomas. Methods A total of 22 patients underwent hemi-semi laminectomy for the microsurgical removal of spinal schwannomas during a period of 2009 and 2011 in Affiliated Hospital of Nantong University. We ret- rospectively analyzed the clinical outcomes of these patients. Results Of them, 5 cases were diagnosed with cervical schwannomas, 9 with thoracic schwarmomas, and 8 with lumbar schwannomas. All the tumors including two dumbbell schwannomas were totally removed without major complications. Postoperatively, all patients were followed up from 6 to 36 months. The symp- toms and signs were obviously improved, and no tumor recurrence or spinal deformity occurred. Conclusion Hemi-semi laminectomy is a safe and effective method for resection of spinal schwan- nomas
文摘Objective.To describe the effects of surgical treatment a nd complications in46patients with carotid body tumor.Method.Retrospe ctive study on surgical treatment and complications was carried out in46case s of CBT which were surgically treated with different kind of procedures.Resul t.All procedures performed successfully except that the CBT was not excised in 4cases.No operative mortality was observed.There were2postoperative hemiple gia,4hypoglossal nerve impairment ,2glossopharyngeal nerve impairment ,1va gus nerve impairment ,and1accessory nerve impairment.One patient presented p ostoperative cranial nerve impairment in glossopharyngeal,vagus and hypoglossa l nerves.Two patients developed local recurrence during the long-term follow-up.Conclusion.Complete surgical excision was possible in each patient if th e diagnosis had been cor-rectly made through selective preoperative angiography ,vessel ultrasound Doppler and other examinations.Reasonable surgical procedur e and Matas training were necessary to the successful surgical treatment and t hus decrease the complicative incidence rate of carotid chemodectomas.
文摘AIM:To assess the long-term outcome of endoscopic hemorrhoid ligation (EHL) for the treatment of symptomatic internal hemorrhoids.METHODS:A total of 759 consecutive patients (415 males and 344 females) were enrolled.Clinical presentations were rectal bleeding (593 patients) and mucosal prolapse (166 patients).All patients received EHL at outpatient clinics.Hemorrhoid severity was classified by Goligher's grading.The mean follow-up period was 55.4 mo (range,45-92 mo).RESULTS:The number of band ligations averaged 2.35 in the first session for bleeding and 2.69 for prolapsed patients.Bleeding was controlled in 587 (98.0%) patients,while prolapse was reduced in 137 (82.5%) patients.After treatment,93 patients experienced anal pain and 48 patients had mild bleeding.Patient subjective satisfaction was 93.6%.Repeat treatment or surgery was performed if symptoms were not relieved in the first session.In the bleeding group,the recurrence rate was 3.7% (22 patients) at 1 year,and 6.6%and 13.0% at 2 and 5 years.In the prolapsed group,the recurrence rate was 3.0%,9.6% and 16.9% at 1,2 and 5 years,respectively.CONCLUSION:EHL is an easy and well-tolerated procedure for the treatment of symptomatic internal hemorrhoids,with good long-term results.
文摘AIM:To assess the long-term efficacy of seton drainage with infliximab maintenance therapy in treatment of stricture for perianal Crohn’s disease(CD). METHODS:Sixty-two patients with perianal CD who required surgical treatment with or without infliximab between September 2000 and April 2010 were identified from our clinic’s database.The activities of the perianal lesions were evaluated using the modified perianal CD activity index(mPDAI)score.The primary endpoint was a clinical response at 12-15 wk after surgery as a shortterm efficacy.Secondary endpoints were recurrence as reflected in the mPDAI score,defined as increased points in every major element.The clinical responses were classified as completely healed(mPDAI=0),partially improved(mPDAI score decreased more than 4 points),and failure or recurrence(mPDAI score increased or decreased less than 3 points). RESULTS:There were 43 males and 19 females,of whom 26 were consecutively treated with infliximab after surgery as maintenance therapy.Complete healing was not seen.Failure was seen in 10/36(27.8%) patients without infliximab and 4/26(15.4%)patients with infliximab(P=0.25).Partial improvement was seen in 26/36(72.2%)patients without infliximab and 22/26(88.5%)patients with infliximab(P=0.25). Short-term improvement was achieved in 48/62(77.4%) patients.Although the mPDAI score improved significantly with surgery regardless of infliximab,it decreased more from baseline in patients with infliximab(50.0%) than in those without infliximab(28.6%),(P=0.003). In the long-term,recurrence rates were low regardless of infliximab in patients without anorectal stricture.In patients with anorectal stricture,cumulative recurrence incidences increased gradually and exceeded 40%at 5 years regardless of infliximab.No efficacy of infliximab treatment was found(P=0.97).Although the cumulative rate of ostomy creation was also low in patients without stricture and high in patients with stricture,no protective efficacy was found with infliximab treatment(P =0.6 without stricture,P=0.22 with stricture). CONCLUSION:Infliximab treatment was demonstrated to have short-term efficacy for perianal lesions.Longterm benefit with infliximab was not proven,at least in patients with anorectal stricture.
文摘AIM： To evaluate the clinical usefulness of lSF-fluorodeoxyglucose positron emission and computed tomography QSF-FDG PET/CT） in restaging of esophageal cancer after surgical resection and radiotherapy. METHODS： Between January 2007 and Aug 2008, twenty histopathologically diagnosed esophageal cancer patients underwent 25 PET/CT scans （three patients had two scans and one patient had three scans） for restaging after surgical resection and radiotherapy. The standard reference for tumor recurrence was histopathologic confirmation or clinical follow-up for at least ten months after ^18F-FDG PET/CT examinations. RESULTS： Tumor recurrence was confirmed histopathologically in seven of the 20 patients （35%） and by clinical and radiological follow-up in 13 （65%）. ^18F-FDG PET/CT was positive in 14 patients （68.4%） and negative in six （31.6%）. ^18F-FDG PET/CT was true positive in 11 patients, false positive in three and true negative in six. Overall, the accuracy of ^18F-FDG PET/CT was 85%, negative predictive value （NPV） was 100%, and positive predictive value （PPV） was 78.6%.The three false positive PET/CT findings comprised chronic inflammation of mediastinal lymph nodes （n = 2） and anastomosis inflammation （n = 1）. PET/ CT demonstrated distant metastasis in 10 patients. ^18F-FDG PET/CT imaging-guided salvage treatment in nine patients was performed. Treatment regimens were changed in 12 （60%） patients after introducing ^18F-FDG PET/CT into their conventional post-treatment follow-up program. CONCLUSION： Whole body ^18F-FDG PET/CT is effective in detecting relapse of esophageal cancer after surgical resection and radiotherapy. It could also have important clinical impact on the management of esophageal cancer, influencing both clinical restaging and salvage treatment of patients.
文摘Objective.T o assess the viability of surgical procedures on gynecologic malignant patients o f70years age and older.Methods.Between September1,1983to June30,1 999,57gynecologic malignant patients aged70years and older were treated by surgical procedures.A retrospective study was perf ormed.All patients were analyzed for preexisting medical conditions,length of hospital stay,morbidi-ty,and mortality.Results.Thirty-four patients had a n extensive surgical procedure,while a local surgical procedure was done in23 patients.Forty-one patientshad one or more preexisting medical i llnesses.Minor surgical morbidity occurred in24patientsand majo r surgical morbidity occurred in6patients.There were no differen ces in the types of surgical procedures,mean hospital stay,preexisting medical illness and postoperative complications between the two groups of patients70 to75year older and over age75.The major postoperative complications all occ urred in the extensive surgical procedure group that were higher as compared wit h local operation and postoperative mean stay was also significant-ly length in former group.Conclusions.The extensive surgical procedure can be performed fo r elderly patients with gynecologic malignances.Careful preoperative evaluatio n,monitoring,and meticulous postoperative care are vital to the success.
文摘To evaluate the effects of carotid endoarterectomy in the treatment of extracranial cerebrovascular disease, 26 cases with internal carotid stenosis were performed by three different kinds of surgical endoarterectomy. The satisfactory results were achieved in all the patients, with no complications and mortality occurring. Endoarterectomy is the effective way to treat the extracranial cerebrovascular disease.
基金Supported by the Military Major Project for Clinical High-tech and Innovative Technology of China (2010gxjs057)the Municipal Hospitals’ Project for Emerging and Frontier Technology of Shanghai (SHDC12010115)the Project for the Key Discipline of Shanghai
文摘Background： Laparoendoscopic single-site surgery （LESS） may serve as a potential alternative to conventional laparoscopy and is developing quickly, but still in its infancy. The study is to present our two-year experience in transumbilical LESS simple nephrectomy （LESS-SN） for non-functioning kidney, in an effort to evaluate its feasibility, clinical outcomes and potential advantages. Methods： From December 2008 to December 2010, a total of 11 patients with body mass index （BMI）≤30 underwent transumbilical TriPortTM LESS-SN by a single experienced urologist at our institution. The indications for nephrectomy included nonfunctioning kidney associated with ureteropelvic junction stricture （n=l）, ureteral calculi （n=6）, tuberculosis （n=3）, and ureteral stricture （n=l）. Patient demographics perioperative and follow-up data were prospectively collected and analyzed. Results： Ten procedures were successfully completed with one patient converted to open surgery due to uncontrollable bleeding. The mean operative time was 189.2 （ranging 100-320 min） with an estimated blood loss of 204.5 （ranging 50-1 000 ml）. There were two complications of bleeding （1- intra-, 1- post-）. The mean hospitalization after surgery was 7.9 d （ranging 4-17 d） With a regular follow-up of 1, 6, 12, and 24 months after surgery, all patients remained symptom-free with an intra-umbilical scar. Conclusion： Transumbilical LESS simple nephrectomy for nonfunctioning kidney can be accomplished with favorable surgical outcomes and a superiority of cosmesis. However, cases with chronic inflammation are not suitable for initial up-take and should only be attempted by the very experienced laparoscopist.
文摘Objective： To investigate the clinical efficacy of intraperitoneal chemotherapy before surgery for ovarian cancer. Methods： 60 patients with stages Ⅱ-Ⅳ of ovarian cancer were treated with intraperitoneal chemotherapy of CAP or TP regimen followed by a surgery treatment and another chemotherapy for 6 cycles. And then the efficiency of the therapy was evaluated by analyzing the changes of ascites, the serum CA-125 and CA-19-9 levels and the findings in the operation, and investigating the recurrence of cancer and the survival. Results： After 1-3 cycles of intraperitoneal chemotherapy, serum levels of CA-125 and CA-19-9 and carcinous ascites significantly reduced in all patients, ascites reduce was over 50% in 98.3% cases; all cases were successfully treated with cytoreduction and it was found during the operation that bulky tumor was reduced and looser so as to be easily isolated and removed; PFS of the patients was prolonged, while the toxicity and side-effects were not so serious as beyond the patient toleration. Conclusion： Intraperitoneal chemotherapy before surgery for ovarian cancer has an active efficacy in clinic, being able to improve conditions of surgery and increase the opportunity of maximal cytoreduction, and prolong survival of the patients, and should be a good selection for the treatment of advanced ovarian cancer.
文摘Objective To evaluate the transesophageal echocardiography(TEE) and surgical treatment to cardiac papillary fibroelastomas (CPFE). Methods CPFE is a rare benign tumor occuring mainly in valves and often revealed by serious cerebral, coronary and peripheral embolism or even sudden death. We report a case of mitral PFE diagnosed by transesophageal echocardiography (TEE), and surgical resection was performed. Results Surgical intervention is successful, and the follow-up courses are uneventful. Conclusion TEE is helpful to diagnosis and guiding the operation. Operation is recommended to prevent recurrent embolization complications.
