Diaphragm-like strictures of the colon induced by non-steroidal anti-inflammatory drugs.
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Anti-Inflammatory Agents, Non-Steroidal↗
Biomedical subjects
W Schweizer
Publications and source records attributed to W Schweizer.
Finite-element calculations for the S states of helium.
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Journal Article↗
Unresectable malignant biliary obstruction: treatment by self-expandable biliary endoprostheses.
The primary goal in the treatment of malignant obstruction is the relief of jaundice. Although operative biliary bypass is a reliable method of palliation, nonoperative palliation may be desirable in selected patients. We report our experience with forty-eight self expandable metallic biliary endoprostheses (Wallstent) percutaneously placed in 35 patients with irresectable malignant biliary obstruction. In twelve patients more than one stent was necessary to bridge the entire length of the biliary stenosis. The obstruction was due to primary tumors in 14 and to lymph node metastases in 12. In nine patients transanastomotic stents were placed after previous bilioenteric anastomosis because of malignant obstruction. Complications occurred in 11 patients (31.4%), and five patients died within 30 days of stent placement (14.3%). The mean stent patency to date of patients discharged is 6.1 months, and the mean survival 7.2 months. Follow up data is available for 29 patients, and excellent palliation was achieved for more than 75% of the survival time in 22 (76%). Seven patients have had documented stent occlusion requiring further intervention (24%). In this selected group of patients, the results of percutaneous self-expandable stents are encouraging. However, our data does not support the initial reports of self-expandable endoprostheses that suggest an improved result compared to conventional plastic stents. A randomized study using either expandable stents as compared to operative biliary enteric bypass is necessary.
Adenoma, Bile Duct↗
[The value of conservative therapy, surgical treatment and interventional radiology in perforations and ruptures of the esophagus].
We have reviewed all the records of 23 patients hospitalized in our institution from January 1981 till December 1991 and presenting a confirmed diagnosis of esophageal perforation. We have studied the aetiology, the localization, morbidity and mortality and we discuss the therapeutic management. 9 patients presented a cervical perforation, 13 patients a thoracic perforation and 1 patient an abdominal perforation. Among the patients with cervical perforation 2 patients had a local revision with drainage, 3 patients a primary suture and 4 patients were treated conservatively. No complication was found in this group. The patients with thoracic perforation have been treated as follow: 3 conservatively, 8 with thoracotomy, primary suture +/- patch, drainage, 2 patients with thoracotomy and drainage alone. All complications happened in this group: 2 gastro-intestinal bleeding, 2 ARDS, 3 mediastinitis, 1 pneumonia. 2 patients in a very poor general condition died, one with a metastatic breast carcinoma, the other after a CVI with a massive gastro-intestinal bleeding. The cervical perforations have an excellent prognosis and can be treated conservatively if they are asymptomatic and do not display a pleural lesion. The thoracic perforations can be treated surgically if they are diagnosed early before septic complications. If not, they will be better treated conservatively with drainage. The intraabdominal perforations have to be treated as every intraabdominal perforation. In this case, we perform a primary suture completed with fundoplication.
Aged↗
[Surgical-radiologic interventional treatment in liver abscess with Streptococcus anginosus Milleri].
Pyogenic liver abscess is a relatively rare disease, often concerning elderly patients in bad general condition and with underlying diseases. Out of a retrospective study (1984-1991) of 44 patients (f 43%, m 57%) with pyogenic liver abscesses and 12 patients (f 17%, m 83%) with amebic liver abscesses we present 5 patients with multifocal lesions due to Streptococcus anginosus Milleri--a special group concerning therapy and course of disease. The therapy was high-dose i.v. antibiotic therapy in all 5 cases and additional percutaneous drainage with pig-tail catheters--inserted under CT guidance--in 4 cases (1-5 catheters, time of drainage 6-63 days). The duration of hospitalisation was 15-73 days (median 45), intravenous antibiotic treatment lasted 4-40 days. After discharge oral antibiotics were continued for 14-42 days.
AIDS-Related Opportunistic Infections↗
[Value of laparotomy in massive lower gastrointestinal hemorrhage].
A study of ninety-four patients admitted with massive lower gastro-intestinal bleeding (LGIB) is presented using a systematic diagnostic work-up including angiography, colonoscopy and various investigations, such as scintigraphy, small bowel series and ultrasonography. The bleeding source was identified preoperatively in eighty-five patients. 9 patients had a diagnostic laparotomy and a pathology was found in additional seven. No source was identified in two patients (2.1%) at exploration and "blind" subtotal colectomy was not performed in these two cases as proposed by others. We conclude that a thorough systematic assessment of patients with LGIB is important to localize the bleeding source. Exploratory laparotomy is the final step in few cases (10%) and if no intraoperative source can be identified a "blind" colonic resection should not be performed.
Adult↗
[The significance of computerized tomography for conservative treatment of liver trauma].
Increasing experience with early radiological evaluation by ultrasound (US) and computed tomography (CT) of patients with abdominal trauma is leading to more frequent use of conservative treatment in patients with severe liver injuries. In a retrospective study with predominant use of peritoneal lavage only 3 out of 100 patients with liver injuries were treated non-surgically. In a consecutive prospectively evaluated series of 75 patients with early use of US and CT, 30 patients in stable circulatory conditions were treated non-surgically. With increasing experience a higher percentage of patients, even with severe liver injuries, could be treated non-operatively. 17 patients with minor injuries (grade I and II, modified according to Moore) and 13 patients with severe injuries (grade III and IV) could be treated non-surgically. 2 patients with grade IV injury developed an arterial/portal-venous fistula and an arterial aneurysm which necessitated radiological embolizations. All conservatively treated patients have been followed up for a mean period of 18 months without complications. Although a precise anatomical classification of the liver injury degree seems difficult, the predictive value of computed tomography for non-surgical treatment was good. Use of iv-contrast is mandatory. We conclude that in experienced hands computed tomography allows precise evaluation of liver injuries for adequate treatment, provided careful follow-up (intensive care unit, CT, angiography) ensues to avoid complications.
Abdominal Injuries↗
[Quality control after introduction of a new hernia technique. Barwell transversal fascia-plasty].
From 1987 to 1991 we operated on 320 patients with 360 inguinal hernias with the recently introduced transversalis fascial repair after Barwell. The transversalis fascia is duplicated with an atraumatic looped nylon 0.43 trainees performed 70% of the operations. The follow-up was 30 months (6-62) for 317 (88%) hernias (two examiners). Over all we observed eleven (3.5%) recurrences, in 8 cases after primary operation. Two of this recurrences were initially missed femoral hernias. In the learning phase we found five early recurrences in the first 60 patients and in the following 257 patients with the same follow-up only 6 recurrences. We conclude that with the new technique of transversalis fascial repair after Barwell very good results can be achieved even with a big number of young surgeons in training.
Adolescent↗
[Mirizzi syndrome--a contraindication for laparoscopic surgery].
The Mirizzi syndrome refers to a benign obstruction of the common hepatic duct by a stone impacted within the cystic duct or the neck of the gallbladder causing an obstructive jaundice. According to McSherry's subclassification based on endoscopic retrograde cholangio-pancreatography we distinguish a type I, involving an external compression of the common hepatic duct by a large stone impacted in the cystic duct or Hartmann's pouch without lesion of the gallbladder or the common hepatic duct wall. In type II a cholecysto-choledochal fistula is present, caused by a calculous which has already eroded partly or completely into the common bile duct. The type I is better treated with a partial cholecystectomy, the type II with a partial cholecystectomy and a bilio-digestive anastomosis. Due to a severe inflammatory process with dense adhesions and odematous changes of the hepato-duodenal ligament, it is dangerous to prepare the Calot's triangle, in case of conventional cholecystectomy and/or in case of laparoscopic cholecystectomy. From 1986-1991 we have successfully treated 10 patients according to this concept (7 patients with type II, 3 patients with type I). We have no mortality and no lesion of the biliary system. One patient has been reoperated because of a postoperative hemorrhage and biliary fistula. One patient developed a benign stricture which could be dilated two months after the procedure. Two patients were found with an incidental carcinoma of the gallbladder.
Adult↗
[Percutaneous transhepatic inserted self-expanding metal endoprosthesis in the palliative treatment of malignant obstructive jaundice].
Prospective studies comparing biliary-enteric bypass with implantation of endoprostheses in palliation of malignant obstructive jaundice showed no significant difference. A new self-expandable metal endoprosthesis was introduced to ameliorate the results in terms of early complication and occlusion rate. Between December 1988 and April 1991 we treated 35 patients (32 with malignant obstructive jaundice) by 50 self-expandable endoprostheses. The implantation was successful in 96% of patients. The early complication rate was 37% and the 30-day mortality 14%. In 89% of the patients relief of jaundice after 3 months was found. Recurrent jaundice and cholangitis occurred in 39%, whereas reoperation was necessary in 25%. 16 of 26 patients (61%) with malignant obstructive jaundice where alive after an average of 7.5 months. We found no advantage of the self-expandable endoprostheses compared with conventional plastic stents. Implantation of a self-expandable metal endoprosthesis may be an alternative to surgical bypass in selected cases. It would be interesting to evaluate the endoscopic route of insertion and to compare the results with palliative surgery in randomized studies.
Aged↗
Prospective study in adults of splenic preservation after traumatic rupture.
Seventy-five adults with splenic injury were evaluated prospectively over 45 months to examine the possibility of splenic preservation. Haemodynamically unstable patients underwent surgery with the intent of splenic preservation. Stable patients received non-operative treatment regardless of the grade of splenic injury determined by ultrasonography and computed tomography. Thirty-seven patients required splenectomy and in 38 the organ was preserved (20 operative preservation, 18 non-operative treatment). Of 22 patients initially receiving non-operative treatment, there were four secondary haemorrhages after 7, 7, 10 and 13 days making surgery necessary. Three of these patients underwent splenectomy and in one the spleen was preserved by partial resection. After splenectomy four patients required reoperation because of rebleeding or for evacuation of a haematoma. Patients who had undergone splenectomy had a significantly increased infection rate (P < 0.005) compared with those in whom the spleen was preserved, even when patients were matched with respect to multiple trauma using the Injury Severity Score (P < 0.01).
Adolescent↗
Intrahepatic arterioportal fistula following conservative treatment of a traumatic liver rupture: case report.
A 16-year-old girl with severe liver injury complicated by the development of an intrahepatic arterial aneurysm and arteriovenous fistula is presented. Nonsurgical treatment combining close observation and repeat hepatic arterial embolization was successful.
Adolescent↗
More than 104 urinary bladder stones.
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Adolescent↗
[Experimental atrophy/hypertrophy complex of the liver after portal and/or biliary ligation in the rat].
Patients with lobar or segmental, benign or malignant strictures of the biliary tree (with or without impairment of the portal blood flow) show a considerable atrophy of the involved area of the liver with a compensatory hypertrophy/hyperplasia of the remaining non affected liver. To investigate the importance of the biliary and portal obstruction for the development of this process, we used a rat model, with selective biliary and/or portal ligation of the anterior liver lobes (two thirds of the liver mass). Weight measurements, morphometry, functional scintigraphy (Hepatoiodida-scan) and blood enzyme analyses were done immediately postoperatively, at 30 hours and 4, 8 and 28 days after the operation. The major findings were: 1. 28 days after biliary and/or portal ligation there was no difference between the body weight of the four groups, all ligated animals having compensated for an initial greater percentage body-weight loss. 2. Total liver weight remained constant, while atrophy and hypertrophy/hyperplasia occurred although a progressive derangement of liver morphology was observed during that time. 3. A severe atrophy-hypertrophy-complex (AHC) developed after selective portal ligation, which in our experiment did not appear after selective biliary ligation. 4. Morphometrical changes after selective biliary ligation were reversible, whereas in liver lobes with selective portal ligation a progressive parenchymal destruction and involution with subsequent impairment of hepatic function of the concerned lobe was observed.
Animals↗
[Acute abdomen in abdominal wall hemorrhage in anticoagulation].
10 patients with a history of systemic anticoagulation presented with an acute abdomen which proved to be due to a rectus sheath hematoma. Four patients gave a history of antecedent trauma. The prothrombin time was prolonged beyond the therapeutic range in 8 patients and therapeutic in two. The diagnosis of rectus sheath hematoma was made by non-invasive imaging (sonography [n = 8], CT-scan) in 9 patients and by operative exploration in one. 8 patients were treated non-operatively and one patient required a delayed evacuation of the infected hematoma. One patient died from myocardial infarction. We conclude that a careful history, physical examination and prothrombin time, in combination with radiologic evaluation (sonography, CT-scan) can confirm the suspected diagnosis of rectus sheath hematoma. It is important to think of this specific hemorrhagic complication induced by anticoagulation to prevent unnecessary surgery.
Abdomen, Acute↗
[Prospective study of the early postoperative course of splenic rupture: spleen preservation versus splenectomy].
The haematological and immunological changes after splenectomy have been the subject of intensive research in recent years. As a consequence there has been a clear trend towards splenic salvage. Due to the availability of improved diagnostic investigations (sonography, CT) nonoperative treatment with close observation has become increasingly important in adults. 75 patients with documented splenic injury were prospectively evaluated over a 45-month period with an emphasis upon splenic preservation. Unstable patients had operative exploration with attempt at splenorrhaphy or partial splenic resection. Stable patients were managed nonoperatively, regardless of the degree of splenic injury as determined by sonography and/or computed tomography. In 38 patients the spleen was preserved by operative preservation in 20 and nonoperative treatment in 18 patients. 37 patients required splenectomy. Four patients were managed initially by nonoperative treatment, but required exploration for secondary rupture at 7, 7, 10 and 13 days. Delayed splenectomy was performed in three patients and one patient was treated by splenorrhaphy 7 days after admission. Bleeding complications occurred in one patient after splenorrhaphy (bleeding from the pancreatic tail) and the bleeding vessel could be transfixed during the same anaesthetic. Four patients required reexploration after splenectomy for hemorrhage (2) and evacuation of infected haematomas. The Injury Severity Score (ISS) of the splenectomy and splenic preservation group was determined. Splenectomised patients showed in the postoperative follow-up a significantly increased infection rate (40%, p less than 0.02) when compared to patients with splenic preservation (10%) or nonoperative treatment (11%), even when they were matched in respect of multiple trauma using the Injury Severity Score (ISS).
Adolescent↗
[Final evaluation of the randomized multicenter study SAKK 40/81: adjuvant portal chemotherapy of curatively resected colorectal cancer].
Between 1981 and 1987, 533 patients from 9 institutions have been entered in a randomized trial to assess the value of adjuvant portal infusion (5-Fluorouracil, Mitomycin C) compared to radical surgery alone. Analysis of 469 evaluable patients at a median follow-up of 5.8 years revealed 110 recurrences in the control and 94 recurrences in the infusion group. Estimated 5-year disease-free survival was 52% and 61% respectively (hazard ratio 1:0.75; 95% confidence interval 0.57-0.99; p = 0.046). Overall survival was 59% in the control and 69 in the infusion group (p = 0.048). Adjuvant portal infusion did not influence the occurrence of liver metastases but reduced the overall recurrence rate.
Antineoplastic Combined Chemotherapy Protocols↗
[Epidemiology of liver injuries in 14 district, urban, regional and canton hospitals in Switzerland].
224 patients with liver injuries treated in 14 District and Regional Hospitals over a 10-year period were retrospectively evaluated. The results were compared to those obtained in 175 patients referred to the Central University Clinic "Inselspital", Berne/Switzerland. In all cases the degree of multiple trauma was assessed by the Injury Severity Score (ISS) and the severity of the liver injury by a Liver Injury Score (modified after MOORE). Blunt injury to the abdomen as a result of road traffic accidents, accidents at work or sporting misadventures were responsible for about 80% of all liver injuries. Peritoneal lavage was the main special investigation and was reliable in the diagnosis of haemoperitoneum. Abdominal ultrasonography proved of additional value. It allowed in experienced hands not only the diagnosis of liver injury but also some assessment of the severity of injury. Additional injuries to other abdominal organs can be assessed. By utilizing abdominal ultrasonography (or computed-tomography) liver trauma were managed conservatively in selected stable patients with minor injuries. The overall mortality was 17% in the 224 patients and compares well with the international figures. The results of treatment revealed a low mortality for liver injuries Grades I to III, whether managed in a District or Regional Hospital or in the Central University Clinic. For more severe injuries (Grades IV or V) the prognosis was worse in the District or Regional Hospitals than in the Central University Clinic. 20% of patients with liver injury Grades I to III in stable circulatory condition could be treated conservatively.(ABSTRACT TRUNCATED AT 250 WORDS)
Adolescent↗