One-stage operation surgical efficacy observation of congenital preauricular fistula infection and static period of inflammation in children / 临床耳鼻咽喉头颈外科杂志

Objective:To compare the clinical effect of surgical treatment of congenital preauricular fistulas in children during the local infection period and static inflammatory period. Methods:Forty children with congenital preauricular fistula infection treated in our hospital from January 2020 to December 2022 were selected as the experimental group, and 39 children with congenital preauricular fistula inflammation at static period were selected as the control group. The fistula of the two groups of children aged between 1-14 years old was located in front of the foot of the ear wheel or the foot of the ear wheel, and all were unilateral fistulas. The postoperative follow-up was 6 months to 2 years, and the efficacy of the two groups was compared. Results:There was no significant difference in the healing rate of stage Ⅰ and stage Ⅱ between the two groups（P>0.05）. There was no significant difference in fistula recurrence rate and satisfaction with the preauricular scar between the two groups after treatment（P>0.05）. There was no significant difference in postoperative hospital stay between the experimental group and the control group（P>0.05）. Conclusion:The effect of surgical treatment of congenital preauricular fistula in the infected period is similar to that of surgical treatment in the static period of inflammation, and it can reduce the pain of dressing change under local anesthesia in children, avoid the second operation in children, and reduce the economic cost. This treatment method is worthy of clinical promotion. Appropriate incision and resection method were designed according to the fistula and infection sites.

One-stage surgery in patients with both cardiac and non-cardiac diseases / 北京大学学报(医学版)

OBJECTIVE@#To investigate the possibility and feasibility of one-stage cardiac and non-cardiac surgery.@*METHODS@#From July 1999 to August 2018, one hundred and eleven patients suffering from cardiac and non-cardiac diseases were treated by one-stage cardiac and non-cardiac operation in Department of Cardiac Surgery and Thoracic Surgery, General Surgery, Urinary Surgery, and Gynecology, Peking University First Hospital. There were 83 males (74.8%) and 28 females (25.2%), aged 41 to 84 years [mean age: (64.64±8.97) years]. The components of the cardiac disease included coronary heart disease, valvular heart disease, cardiac tumors, chronic constrictive pericarditis and congenital heart disease. The components of the non-cardiac diseases included lung benign and malignant diseases, thymoma and thymic cyst, breast cancer, chest wall giant hemangioma, digestive tract benign and malignant diseases, urinary system carcinoma and gynecological diseases.@*RESULTS@#Two patients died after operations in hospital; thus, the hospital mortality rate was 1.8%. One patient died of multiple organ failure on the 153th days after emergency coronary artery bypass grafting (CABG) combined with radical resection of bladder cancer. The other of pericardium stripping with lung cancer operation died of the multiple organ failure on the tenth day after surgery. The remaining 109 patients recovered and were discharged. There were 13 cases of complications during the days in hospital. The total operative morbidity was 11.7%: postoperative hemorrhage in 2 cases (1.8%), pulmonary infection and hypoxemia in 3 cases (2.7%), hemorrhage of upper digestive tract in 1 case (0.9%), incisional infection in 3 cases (2.7%), subphrenic abscess in 1 case (0.9%), and postoperative acute renal failure and hemofiltration in 3 case (2.7%). Of the 109 patients discharged, 108 patients were followed up. All the patients survived for 6 months, and 21 patients died due to tumor recurrence or metastasis within 1 to 5 years of follow-up, but no cardiogenic death. During the follow-up period, 1 patient developed cardiac dysfunction, 1 patient underwent percutaneous coronary intervention (PCI), 1 patient had cerebral hemorrhage due to excessive postoperative anticoagulation, and 1 patient suffered from incisional hernia.@*CONCLUSION@#One-stage surgeries in patients suffering from both cardiac and non-cardiac benign or malignant diseases are safe and possible with satisfactory short-term and long-term survival.

One Stage Posterior Minimal Laminectomy and Video-Assisted Thoracoscopic Surgery (VATS) for Removal of Thoracic Dumbbell Tumor

OBJECTIVE: This study was conducted to assess the surgical results of one-stage posterior minimal laminectomy and video-assisted thoracoscopic surgery (VATS) for the treatment of thoracic dumbbell tumor and to describe its precise technique. In addition, we investigated the technique's usefulness and limitations. METHODS: Seven cases of thoracic dumbbell tumor (two men and five women, mean age, 43 years) were analyzed retrospectively. Pathological findings included schwannoma in four patients, neurofibroma in two patients, and hemangioma in one patient. The location of tumors varied from T2/3 to T12/L1. Dumbbell tumors were resected by one-stage operation using posterior laminectomy followed by VATS without instrumentation. Clinical data were reviewed. RESULTS: The mean follow-up period was 25 months (range, 3–58 months), and the operative time ranged from 255 to 385 min (mean, 331 min), with estimated blood loss ranging from 110 to 930 mL (mean, 348 mL). The tumor was completely resected without instrumentation and postoperative instability in all cases. Postoperative complications included atelectasis and facial anhydrosis in one case each. CONCLUSION: One-stage posterior minimal laminectomy and VATS may be a safe and less invasive technique for removal of thoracic dumbbell tumor without instability. This method has the advantage of early ambulation and rapid recovery because it reduces blood loss and postoperative pain.

A One-Stage Operation for Incomplete AVSD, Mitral Regurgitation, Patent Foramen Ovale, Atrial Fibrillation, and Pectus Excavatum / 日本心臓血管外科学会雑誌

<p>A 55-year-old man presented with exertional dyspnea. He was found to have an incomplete atrioventricular septal defect (AVSD), mitral regurgitation, a patent foramen ovale (PFO), atrial fibrillation, and pectus excavatum. A one-stage operation including thoracoplasty in addition to the intracardiac repair was preferred in order to obtain a good view of the operative field and control the postoperative hemodynamics. Therefore, we performed autologous pericardial patch closure of the AVSD, mitral valve plasty with closure of the mitral cleft, direct closure of the PFO, and a modified maze procedure, followed by sternal elevation (modified Ravitch procedure) during chest closure. Postoperatively, his respiratory status on a respirator improved slowly and he was extubated on the 17th postoperative day. Dysphagia developed because of the prolonged intubation, but improved with deglutition rehabilitation. The subsequent postoperative course was uneventful and he was discharged on the 59th postoperative day. We performed a modified Ravitch procedure, instead of sternal turnover, because the latter requires exfoliating a broad area, which could increase the total blood loss and the risk of infection, and make it difficult to maintain the blood flow of the plastron. We obtained a good view of the operative field and stable hemodynamics postoperatively with sternal elevation in pectus excavatum accompanied by heart disease.</p>

An Improved One-Stage Operation of Cranioplasty and Ventriculoperitoneal Shunt in Patient with Hydrocephalus and Large Cranial Defect / 대한신경손상학회지

OBJECTIVE: The risk of complications is high for patients with a large cranial defect and hydrocephalus, undergoing cranioplasty and ventriculoperitoneal (VP) shunt operation. The purpose of this study is to examine retrospectively such cases with complications and contrive an operative technique to reduce complications. METHODS: Nineteen patients underwent cranioplasty and VP shunt operation due to large cranial defects and hydrocephalus. These patients were divided into two groups: Group A with 10 patients who underwent staged-operations, and Group B with 9 patients who underwent one-stage operation. Their complications in each group were retrospectively reviewed. Another five patients underwent a one-stage operation with temporary occlusion of the distal shunt catheter to improve on the technique and were categorized as Group C. Complications in these groups were compared and analyzed. RESULTS: The results of the data analysis revealed that complications related to anesthesia (40%) and those related to antibiotic prophylaxis (30%) were high in Group A, while non-infectious delayed complications (45%) and perioperative complications such as intracranial hematoma (33%) were high in Group B. However, for patients in Group C, it showed less complication with the operative technique devised by these authors, as opposed to two previous procedures. CONCLUSION: In patients with hydrocephalus and a large cranial defect, complications arising from existing one-stage operation or staged-operations can be reduced by implementing the technique of "one-stage operation with temporary occlusion of the distal shunt catheter."

Experience share of tetralogy on 38 cases with stage Ⅰ Fallot children and little left ventricle / 中国综合临床

Objective To share the clinical experience of tetralogy of stage Ⅰ Fallot children with little left ventricle.Methods Thirty-eight cases with stage Ⅰ Fallot with little left ventricle from March 2008 to Jun 2012 were selected as our subjects.Of them,18 were boys and 20 were girls.The age of the cases ranged from 5 to 18 months and average was (9.37 ±2.45) months.The weight ranged from 6.6 to 10.4 kg,and average was (8.33 ± 1.72) kg.All cases showed cyanosis of oral lip.They all were performed tetralogy by the breast bone median incision and then expanding interventricular septal defect.Results All cases survived.Following-up 6 -18 months showed that all cases got good recovery.Left arterial diameter at before the operation,discharge,3 months after surgery were (14.07 ± 0.79) mm,(14.37 ± 0.68) mm,(16.01 ± 0.72) mm respectively and transverse diameter of right atrium were (18.23 ± 1.07) mm,(18.74 ± 0.96) mm,(19.28 ± 0.71) mm respectively.The differences were significant (F =99.474,69.760,P =0.000).Main pulmonary artery diameter at before the operation,discharge,3 months after surgery were (7.98 ±0.92) mm,(8.16 ±0.54) mm and (9.92 ± 0.81) mm,and left ventricular end diastolic diameter were (19.27 ± 1.15) mm,(21.06 ± 1.75) mm,(23.41 ± 1.18) mm.Meanwhile,left ventricular fractional shortening rate were (35.57 ± 1.45)％,(32.61 ± 2.15) ％,(34.29 ± 2.12) ％,and main pulmonary artery systolic flow velocity were (450 ± 98.36) cm/s,(150.0 ± 9.22) cm/s,(148.0 ± 7.92) cm/s.All differences were statistically significant (F =108.620,96.410,99.485,102.914;P =0.000).Conclusion Tetralogy on Fallot children with little left ventricle can lead to cardiac remodeling,which reduce the load of right ventricle and improve left ventricular function.

One-stage operation for bilateral posterior communicating artery aneurysms via unilateral pterional approach: An efficacy analysis / 中国脑血管病杂志

Objective: To investigate the feasibility and operative effect of the one-stage microsurgery for clipping of bilateral posterior communicating artery aneurysms (BpcoAA). Methods: The clinical data of 28 patients with BpcoAA were analyzed retrospectively. All patients underwent craniotomy and microsurgical clipping of BPcoAA via unilateral pterional approach. The patients were followed up for 6 months to 3 years after microsurgery. The head 3 D-CTA of the patients and their general conditions were reexamined. The Glasgow outcome scale (COS) scores were used to assess the prognosis. Results: Circled digit oneGood preoperative 3D-CTA showed 28 cases with 56 aneurysms, the aneurysms were clipped completely in 24 cases, the contralateral aneurysms were not clipped completely in 3 cases, the aneurysm was not clipped completely on the approach side in 1 case, and none of the patients died. The aneurysms ruptured in 8 cases on the approach sides during the microsurgery. Circled digit twoAfter microsurgery, 7 cases had hydrocephalus, and 5 had vasospasm on the approach sides and 3 on the contralateral sides, 3 suffered pulmonary infection, and 2 had oculomotor nerve injury on the contralateral sides. Circled digit threeThe mean follow-up time of the patients was 1.7 years. The GOS scores: 5 points in 10 cases, 4 points in 7 cases, 3 points in 9 cases, and 2 points in 2 cases. There were no aneurysm recurrence and new aneurysm formation. The patients whose aneurysms were not clipped completely had no recurrence of bleeding. Conclusion: According to 3D-CTA examination, using unilateral pterional approach, aiming at the location of the optic chiasm and the contralateral aneurysm pointing, the one-stage microsurgery for clipping of BpcoAA is safe and feasible.

One-Stage Operation for Cantrell's Pentalogy

Cantrell's pentalogy may be defined as a failure of fusion of the midline from the sternum to the umbilicus. Thus, this malady consists of multiple anomalies of the sternum, heart, pericardium, diaphragm and umbilicus or anterior abdominal wall. According to the degrees of each anomaly, various operations can be planned as a one-stage operation or as a multi-stage operation and then palliative or corrective operations. The authors experienced a case of Cantrell's pentalogy that consisted of a bifid sternum, ventricular septal defect, atrial septal defect, ventricular diverticulum, dextrocardia, pericardial defect, anterior diaphragmatic defect and diastasis recti; all of these problems were corrected by a one-stage operation.

Safety of a One-stage Operation for an Obstructed Left Colon Carcinoma

PURPOSE: For a left-sided colonic obstruction, the traditional method of a staged defunctioning colostomy and resection has been performed. Recently, there has been a trend towards a one-stage primary resection and anastomosis. The aim of this study was to assess the safety and the efficacy of a one-stage resection and anastomosis for obstructed left colon cancer. METHODS: We retrospectively reviewed the records of 29 patients who had been diagnosed as having an obstructed left-sided colon cancer during the period from January 1995 to December 2003 at Ewha Womans University Hospital. We compared two techniques, a one-stage operation (10 cases) and a staged operation (13 cases). RESULTS: The mean age of the one-stage group was 58.5+/-16.1, and that of the staged operation group was 65.0+/-13.4. Both groups had similar co-morbidities, TNM stages, and tumor locations. In the one-stage operation group, a subtotal colectomy (n=3), a resection and anastomosis with intraoperative lavage (n=5), and a resection and anastomosis following stent insertion (n=2) had been performed. Patients who had undergone a colostomy as the first operation, resection and anastomosis (n=3), and a resection and anastomosis following a defunctioning colostomy (n=10) were included in the staged operation group. The mean postoperative hospital stay showed no significant differences between the two groups. One patient who had undergone a one-stage operation presented with an intestinal partial obstruction five months later. There were no anastomotic leakages, intraabdominal absceses, and wound infections, nor were there any mortalities. CONCLUSIONS: A one-stage resection and primary anastomosis for obstructed left-sided colon cancer can be done safely without significant morbidity.

One-stage microsurgical treatment of dumbbell tumors / 中国微创外科杂志

Objective To summarize our experience in microsurgical treatment of dumbbell tumors. Methods The clinical features,surgical approaches,operative techniques and surgical results of 21 cases of dumbbell tumors were analyzed retrospectively.Four surgical approaches were adopted according to the size and location of tumors,including,posterior midline approach(in 7 cases),modified far lateral approach(in 5 cases),posterior midline supplied by anterior cervical approach(in 2 cases)and paramidline approach(in 7 cases). Results In this series,10 cases of tumors were situated in the cervical,6 in thoracic,4 in lumbar and 1 in sacral segment of the spine.Total removal were achieved in 95% (20/21),and subtotal removal in 5%(1/21).Postoperative pathological diagnosis revealed 15 neurinomas,5 spinal meningiomas and 1 metastatic adenocarcinoma.14 cases of meningiomas and 1 metastatic adenocarcinoma were followed up for 1 to 48 months.11 of the 14 patients recovered completely,with 3 of them living daily life independently,4 maintainly radical hypoesthesia,and one having decubital ulcer unhealed.No postoperative malformation and dysfunction of the disposed spine occurred in these patients.Magnetic resonance imaging scans in 11 of the 14 follow-up cases revealed no tumor recurrence,of which inhanced MRI scans were performed in 8 cases. Conclusions dumbbell tumors should be treated by one-stage operation.Microsurgical technique could improve the rate of total removal,and decrease postoperative complications.

The Safety of Intraoperative Colonic Irrigation for Single Stage Procedure in Emergency Based Left Colonic Pathology

Staged procedures are preferred to single stage procedures in emergency based left colonic obstruction or perforation because of the safety. PURPOSE: To evaluate whether the single stage procedure in emergency based left colonic pathology is not safe. METHODS: We compared medical records of single stage procedure (SP, n=22 male; 10, mean age: 60+/-17, range: 26-82 Yrs) with Hartmanns procedure (HP, n=23 male; 13, mean age: 58+/-16, range: 18-90 Yrs) and diverting loop colostomy (DC, n=19, male; 12, mean age: 59+/-19, range: 19-80 Yrs) in these 4 years. All the patients were admitted via emergency room. Intraoperative colonic irrigation method with newly developed irrigation device (MITech co., Ltd, Seoul, Korea) was used for SP. APACHE III scoring system was applied to evaluate the physiologic status of the patients. Preoperative data were compared with the 1st and 3rd postoperative day (POD). RESULTS: There were no statistically significant differences in patient demographics and preoperative APACHE III scores. The improvement of APACHE III score was significant in SP and DC on the 3rd POD from 29.6+/-20.9 to 22.9+/-10.2 and 25.7+/-13.3 to 21.4+/-14.8 (P<0.05). There was also a significant improvement in DC (25.7+/-13.3 to 21.9+/-12.9, P<0.05) on the 1st POD, however, there was only a tendency of improvement in SP (29.6+/-20.9 to 26.1+/-12.3) without statistical significance. The scores in HP showed no improvement on the 1st and 3rd POD. There were 3 operative mortalities in HP and one in DC. CONCLUSIONS: Our results suggest that the safety of the single stage procedure with newly developed colonic irrigation device is comparable to palliative decompressive loop colostomy and better than Hartmanns procedure in emergency based left colonic pathology.

Clinical Significance of Subtotal or Total Colectomy in Obstructing Left Side Colon Cancer

PURPOSE: Although the cancer of the right side colon is usually managed by primary anastomosis following resection, but the optimal management of obstructing left side colon cancer is controversial. So, we performed this study to evaluate the feasibility and safety of subtotal or total colectomy as a method of one-stage operation in malignant obstruction of left side colon. METHODS: We analyzed retrospectively 35 patients with obstructing left side colon cancer among 74 cases of obstructing colorectal carcinoma who were treated surgically at the Wallace Memorial Baptist Hospital from January 1989 to December 1998. RESULTS: One-stage operation was performed in 16 patients (subtotal colectomy in 13, total colectomy in 3). Staged operation was performed in 15 patients (two-stage operation in 10, three-stage operation in 5). Palliative colostomy was performed in 4 patients. Postoperative complications had been developed in 6 patients (37.5%) with subtotal or total colectomy group and in 7 patients (46.7%) with staged operation group. The postoperative frequent bowel movement was shown in 13 patients (81.2%) with subtotal or total colectomy group and in 7 patients (70.0%) with staged operation group. Frequent bowel movement was improved with antidiarrheal medications within 3 months. Operative mortality was 6.3% (1 patient) in subtotal or total colectomy group and 13.3% (2 patients) in staged operation group. There was no significant difference in morbidity and mortality statistically between two groups. CONCLUSIONS: We believe that subtotal or total colectomy as a method of one-stage operation can be performed with acceptable morbidity and mortality in selected patients with obstructing left side colon cancer.

Efficacy of Intra-Operative Lavage in One-stage Operation for Obstructive Left Colon Cancer

PURPOSE: Although staged operations have been thought a main treatment for obstructive left colon cancer, their disadvantages make one-stage operations popular. We tried to identify technical feasibility and oncologic safety of one-stage operation with intra-operative lavage (IOL) for the treatment of obstructive left colon and rectal cancer. METHODS: From June 1996 to May 1999, of 456 colorectal cancer patients, 25 with obstructive left colon or rectal cancer underwent surgery. In 18 of those, we intended to do a one-stage operation with IOL. Male (n=14) were predominant to female (n=4). Mean age was 61.2 (29~78) years. Lesions were located on the sigmoid colon in 8, rectum in 4, descending in 3, and rectosigmoid junction in 3 cases. Operative technique: Lymphovascular division was initiated at the origin of IMA followed by mobilization of the left colon up to the splenic flexure and distal transverse colon. Thereafter antegrade irrigation of the proximal colon with warm normal saline was done by using a corrugated tube. Anastomoses were made by hand or stapler in end-to-end or side-to-end fashion. RESULTS: Mean operative time was 221 (185~360) min. No significant post-operative complications occurred except for two wound infections and one pulmonary atelectasis. There was one unexpected conversion to Hartmann's procedure due to intra-operative fecal soilage during the lavage. Within 18 months follow-up period, 4 recurrences occurred with two of them expiring. CONCLUSIONS:: One-stage operation for the treatment of obstructive left colon cancer with IOL could avoid colostomy or reoperation, and, was technically feasible, safe, and oncologically acceptable.

Comparison of One Stage Operation with Staged Operation in Malignant Obstruction of the Left Colon and Rectum

BACKGROUND: The optimal management of malignant obstruction of the left colon and rectum is controversial. METHODS: A retrospective study was performed of 33 patients who underwent one-stage operation(n=11), staged operation(n=20), and palliative colostomy(n=2) at Kwangju Christian Hospital between January 1992 and December 1996. RESULTS: Eleven patients underwent one-stage operations(7 cases with anterior resection, 3 cases with left hemicolectomy, 1 case with Miles' operation). In this group, postoperative morbidity was 36.3% including 1 wound infection(9.0%), 1 anastomotic leakage (9.0%), 1 postoperative intestinal obstruction and 1 pulmonary complication, but there was no postoperative death. The average of hospital stay in this group was 18.1 days and the first day of normal diet was 6.0 days. Twenty patients underwent staged operations including 12 cases of Hartmann's procedure. In this group, postoperative morbidity was 35.0% including 3 wound infections(15.0%), 2 pulmonary complications(10.0%), 1 parastomal hernia and 1 fistula. There were two postoperative deaths as a result of sepsis. The average of hospital stay in this group was 34.9 days and the first day of normal diet was 6.8 days. CONCLUSION: We believe that one-stage operation was of value in management of malignant obstruction of the left colon and rectum in selected patients.

Total Replacement of Aorta in Chronic Type I Aortic Dissection / 대한흉부외과학회지

The surgical treatment of diseases of thoracic aorta has had much better success rate in recent years compaired to the past. Aortic aneurysms or dissections that extend along the entire thoracic aorta are usually approached in two or three stages. Recently we successfully performed one-stage aortic replacement from the aortic root to the abdominal aorta in chronic DeBakey type I dissection. A 25 year-old man who had dyspnea on exertion (NYHA Fc II) and a Marfanoid feature was operated under the diagnosis of chronic type I dissection with severe aortic regurgitation. At operation, a huge ascending aorta with two intimal tearings was seen and the blood supply of intercostal arteries and right renal artery was done from the false lumen. Modified Bentall operation with total aortic replacement was done successfully, and the patient is being followed-up without major complications.

One-stage Transoral Decompression and Posterior Fusion in Rheumatoid Atlanto-axial Subluxation: Report of A Case

Authors report a case of one-stage transoral decompression and posterior fusion in rheumatoid atlanto-axial subluxation. A 63-year-old man developed a rheumatoid atlantoaxial subluxation with mild weakness of all extremities which developed relatively suddenly 3 motnths after the initial symptom of neck pain. Skeletal traction followed by transoral decompression and occipitocervical fusion was performed on the same day. Postoperative course has been uneventful and revealed favorable fusion state of occipito-atlanto-axis. The pertinent literature on rheumatoid atlanto-axial subluxation is reviewed and discussed.

One-stage Transoral Decompression and Posterior Fusion in Rheumatoid Atlanto-axial Subluxation: Report of A Case

Authors report a case of one-stage transoral decompression and posterior fusion in rheumatoid atlanto-axial subluxation. A 63-year-old man developed a rheumatoid atlantoaxial subluxation with mild weakness of all extremities which developed relatively suddenly 3 motnths after the initial symptom of neck pain. Skeletal traction followed by transoral decompression and occipitocervical fusion was performed on the same day. Postoperative course has been uneventful and revealed favorable fusion state of occipito-atlanto-axis. The pertinent literature on rheumatoid atlanto-axial subluxation is reviewed and discussed.

The Effect of Intraoperative Adjustment Strabismus Surgery Under Topical Anesthesia

The adjustable suture strabismus surgery has been used for the more accurate operation. In general adjustable surgery is a two-stage procedure, so it has many difficulties such as hospitalization, more chances of infection and more times. We performed one-stage intraoperative adjustment strabismus surgery under topical anesthesia and analyzed the result of surgery. 67 patients were included in this study. The patients ranged from 14 to 61 years of age, averaging 27.6 years of age and the follow-up period after operation ranged from 3 months to 58 months averaging 9.4 months. The overall success rate was 78% (52/67). The success rate of reoperation group which had previous one or more strabismus surgery was 63% (5/8). And the success rate of vertically deviated group was 63% (5/8).

Clinical Analysis of Multiple Intracranial Aneurysms

In this retrospective clinical analysis for 143 patients who underwent operation due to multiple intracranial aneurysms during the last 12 years(1983-1994), we intended to find out the clinical characteristics, the significant signs for the differentiation between ruptured and unruptured aneurysm, and to compare the results of one-stage operations with those of two-stage operations. The results were s follows; Of 864 patients operated on due to intracranial aneurysms, 143 patients(16.6%) had two or more intracranial aneurysms. Multiple aneurysms were more common in females, with a female to male ratio of 2.4 : 1 as compared with 1.3 to 1 for patients with single aneurysm. Common locations of the aneurysms were the middle cerebral artery, and posterior communication artery, anterior communicating artery, and the anterior choroidal artery, in that order. In identifying the site of rupture, the focal hematoma in brain CT scan, segmental vasospasm, irregularity and sizes of aneurysmal sacs on angiograms were helpful. Aneurysms 3mm or less were less prone to rupture. However, for those with a diameter of more than 4mm, the frequency of rupture increased with the size of aneurysm. Eighty eight percent of patients who underwent operations had a favorable outcome and the operation mortality rate was 7.7%. In patients of Grade I and II, surgical results of the one-stage operation group and two-stage operation group did not differ. In Grade III patients, the results were better for the two-stage operation group, without statistical significance. From our studies we have come to the conclusion that incidental aneurysms found in patients with low risk should be treated at the same time when ruptured aneurysms are clipped.

Unilateral Approach to Bilateral Aneurysms: Case Report

Patients with bilateral multiple intracranial aneurysms present a great challenge for determining whether surgical method should e one-stage or two-stage operation. The possibility of fatal rupture of unclipped aneurysm during hemodynamic change of perioperative period after clipping of ruptured aneurysm warrant the one stage operation when contralateral aneurysm is accessible. We clipped the M1 aneurysm of middle cerebral artery and contralateral posterior communicating aneurysm at the same the successfully via the pterional approach.