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Biomedical subjects

H W Waclawiczek

Publications and source records attributed to H W Waclawiczek.

At least 19 recordsLinked to original sources

Laparoscopic cholecystectomy and interventional endoscopy for gallstone complications during pregnancy.

BACKGROUND: Symptomatic or complicated gallstone disease is the most common reason for nongynecological operations during pregnancy. Gallstones are present in 12% of all pregnancies, and more than one-third of patients fail medical treatment and therefore require surgical endoscopy or laparoscopy. Gallstone pancreatitis and jaundice during pregnancy is associated with a high recurrence rate, exposing both fetus and mother to an increased risk of morbidity and mortality. METHODS: During a 4-year period, all pregnant patients (n = 37) with symptomatic or complicated gallstone disease were studied prospectively at the Landeskrankenhaus in Salzburg, Austria. Five patients had an endoscopic retrograde cholangiopancreatogram (ERCP) for biliary pancreatitis or jaundice; two of these underwent subsequent laparoscopic cholecystectomy. Another seven patients required laparoscopic cholecystectomy for severe pain or cholecystitis; all were in their 13th-32nd gestational week. Access was established by Veress needle in all cases. Insufflation pressure was 8-10 mm Hg, and mean operative time was 62 min. RESULTS: All patients delivered full-term, healthy babies. There were no postendoscopic or postoperative complications. All patients enjoyed full relief from their symptoms; there were no recurrences of pancreatitis or jaundice. CONCLUSIONS: The combination of ERCP and laparoscopic cholecystectomy offers a safe and effective option for the definitive treatment of complicated gallstone disease and intractable pain during pregnancy, and there is sufficient access for the combined treatment to be employed.

Cholangiopancreatography, Endoscopic Retrograde↗

[Preoperative therapeutic splitting].

INTRODUCTION: The best clinical strategy for using ERC combined with LC is still unknown. Based on a wide discussion of literature reports the aim of our study is to critically analyse laparoscopic bile duct exploration and to correlate these data to our prospective study of "therapeutical splitting". PATIENTS AND METHODS: In a prospective study 1645 consecutive patients with sympomatic gall stone disease were examined by ultrasound. 309 patients had open cholecystectomy because of previous gastric surgery or perforation. Patients with a high probability of harbouring stones in the common duct or having other related disorders like biliary pancreatitis had ERC, EPT and stone extraction. 1336 patients had attempted LC. RESULTS: At endoscopy 70% of the 260 patients required therapy like EPT and/or stone extraction, 95% consequently had their gallbladder removed laparoscopically. Including the patients with biliary pancreatitis morbidity amounted to 3% with no mortality. In the non-endoscopic group with 1076 patients conversion was 6.8%, morbidity was 4.3% and mortality 0.09%. Residual stones were found in 0.5% so far. CONCLUSION: If selection criteria for bile duct pathology have a high sensitivity and specificity and endoscopical stone clearance rate is high, at present "therapeutical splitting" still is the method of choice.

Adolescent↗

[Treatment of postoperative bile fistulas after laparoscopic cholecystectomy by ERCP, EPT and bile duct drainage].

BACKGROUND: Bile leakage as a complication following cholecystectomy can be found more frequently after laparoscopic cholecystectomy (LC) than after open cholecystectomy. The present study planned to find out the importance of ERCP, sphincterotomy and temporary drainage of the bile duct system in the treatment of bile leakage. PATIENTS AND METHODS: From July 1992 to October 1996 15 consecutive patients presenting with bile leakage following LC underwent endoscopic therapy by CBD-drainage with sphincterotomy (n = 11), CBD-drainage without sphincterotomy (n = 1) and sphincterotomy alone (n = 3). RESULTS: Closure of the bile leakage could be achieved in all cases, biliary secretion stopped after 2.1 days (1-7 days). One dislocation of the drainage into the CBD was found and could be treated endoscopically. Endoscopy-related mortality was 0%. CONCLUSIONS: Endoscopic therapy offers a safe, effective and minimal invasive method in the treatment of bile leakage following LC.

Adult↗

[Urgent ERCP and early elective laparoscopic cholecystectomy in biliary pancreatitis].

BACKGROUND: For many years the best algorithm of treatment for complicated gallstone disease has been intensively discussed. Gallstone pancreatitis with cholangitis still belongs to the most often identified causes of death of necrotizing pancreatitis. The reduction of complication and lethality rates was mainly achieved by urgent ERCP and sequential cholecystectomy. In a prospective study we have combined endoscopic therapy with laparoscopic cholecystectomy (LC) and are discussing the results. PATIENTS AND METHODS: Between May 1991 and December 1996 146 patients with biliary pancreatitis were subjected to ERCP after laboratory tests and ultrasound screening of the biliary system. If there were no contraindications and the gallbladder was still in situ, LC was attempted during the initial admission. RESULTS: Of the 70 patients with attempted LC 26 had common bile duct calculi, 23 had an impacted papillary stone and 10 had signs of a stone passage. 59 patients underwent LC successfully, a conversion to open surgery was necessary in 11 patients. The morbidity rate amounted to 7%, lethality to 0%. DISCUSSION: Since a more liberal indication for ERCP in the management of acute pancreatitis was introduced the number of biliary related cases of acute pancreatitis is increasing. In response to early endoscopic bile duct clearance the rates of morbidity and mortality can be significantly reduced. Early LC is the ideal complementary treatment option to absolutely prevent recurrencies.

Adult↗

[Value of diagnostic laparoscopy and minimal invasive procedures in acute abdomen].

During the last three years 172 diagnostic laparoscopies (DL) were performed at our department in patients with an acute abdomen of unclear causes. This corresponds to 17% of all patients who underwent operation due to an acute abdomen in the same period. Always the indication for a diagnostic laparoscopy arose then, when the cause or the localization of the acute abdomen could not be found by conventional diagnostic methods. The advantages of DL were either the confirmation (93%) or the exclusion (7%) of the diagnosis "acute abdomen", the exact localization and simultaneously a definitive operative treatment of the cause by minimal invasive interventions (n = 109/65%). In these patients with acute abdomen the main causes were acute inflammations of gallbladder (n = 48) and appendix (n = 29), ulcus perforations (n = 9) and ileus (n = 9). The conversion rate amounted to 2.7%, the postoperative complication rate to 11% and the lethality rate to 1.8% in these patients. A new indication is the so-called "bedside laparoscopy" as means to control the postoperative course of mesenteric embolism (n = 9) and diffuse peritonitis (n = 3) in order to avoid the stress of a second-look operation for these seriously ill patients or to secure the indication for relaparotomy.

Abdomen, Acute↗

[Bedside laparoscopy (BSL) for postoperative follow-up of mesenteric infarct and diffuse peritonitis].

Bedside laparoscopy (BSL) for postoperative follow-up in mesenterial infarction of the intensive care patient undergoing respiration treatment represents an important tool for avoiding second-look operations and/or for precisely securing the indication for a relaparotomy. Up until now, nine patients with mesenterial infarction have undergone a BSL, allowing five of then to avoid a second-look operation in this way. Of these nine patients, three died due to a diffuse peritonitis with anastomotic dehiscence, a pulmonary embolism, and a perforation of the stomach after PEG tube deplacement, respectively. Thus BSL represents a low-complication and simply performed method for postoperative follow-up, especially in mesenterial infarction, but also in cases of diffuse peritonitis.

Cause of Death↗

[Potential for improvement of combined endoscopic-surgical treatment of bleeding gastroduodenal ulcer].

A total of 119 patients (January 1995-December 1996; 53 women, 66 men) with a medium age of 63.1 years were admitted to hospital with bleeding gastroduodenal ulcer. Emergency gastroduodenoscopy was performed immediately in all cases, sclerotherapy in 94 cases (78.9%). Control endoscopy was done routinely after 12-24 h; the recurrent bleeding rate amounted to 14.3%, mortality was 5%, and surgical intervention was necessary in 8.4% with a mortality of 40% (!).

Adolescent↗

[Pancreatic duct occlusion with fibrin (glue) to protect the pancreatico-digestive anastomosis after resection of the head of the pancreas in oncologic surgery].

The PDO with FS represents a technically simple, quick and efficient method for the protection of pancreatic-jejunal anastomosis, which is endangered by dehiscences. We could prove--first, in an animal experimental, then in a clinical study of 93 patients--that neither subsequent dehiscence nor a pancreatic fistula occurred. Also, the loss of exo- and endocrine functions is low and can rather be considered as an expression of the extended resection of the pancreatic parenchyma in the scope of the oncological intervention.

Adult↗

[Technique of recurrent laryngeal nerve exposure within the scope of interventions of the thyroid gland].

In anatomical preparations performed during autopsy we developed a well-defined approach for the identification of the recurrent laryngeal nerve during surgery on the thyroid gland. The principle of this concept is to visualize the nerve near the branching of the inferior thyroid artery, where it shows a 30 degree angle to the trachea in a direction running from caudal lateral to cranial medial and lies in front of, behind, or between the branches of the artery. This preparation mode has been prospectively performed in 100 patients undergoing thyroid surgery. In 159 (= 97.6%) sides of the neck out of 163 we identified the nerve at the typical site. The topographical relation of the recurrent nerve to the inferior thyroid artery revealed the following differences for the right and left side of the neck: On the right side the nerve was found to be behind in 48%, in front in 33% and between the branches of the artery in 15% of cases. In contrast, on the left side the nerve was found to be dorsal in 53%, ventral in 23% and between the branches in 23%. Of 163 nerves at risk we observed primary nerve palsy in 2 cases (1.2%), and a definitive palsy rate of 0.6% at the 3-month follow-up. In conclusion, we recommend the described approach for the identification of the recurrent laryngeal nerve during thyroid surgery whenever complete mobilisation of the thyroid lobe (e.g. thyroidectomy, lobectomy, resection of retrotracheal adenomas) is necessary.

Female↗

[Laparoastoma (open packing) in the treatment concept of infected pancreatic necroses].

Out of 284 patients with acute pancreatitis 73 (26%) had pancreas necrosis. Of these 73 cases 43 patients with infected pancreas necrosis were treated surgically, whereas conservative treatment proved successful in the remaining 30 cases with so-called sterile necrosis. Our interdisciplinary treatment combined delayed surgery for the better demarcation of the necrotic tissue, with extended intensive care therapy and epigastral laparostomy; through this laparostomy surgical revision with necrosectomy and peritoneal lavage was performed daily for 15 (+/- 6) days, necessitating long-term artificial respiration for an average of 15 (4/168) days. The mortality rate in the 43 patients with infected pancreas necrosis amounted to 16.2% (n = 7); none of the patients with sterile necrosis died. In cases of multiple organ failure the mortality rate was significantly higher (30%) than with failure of only one organ system (4.3%). The mortality rate in all cases with pancreas necrosis (n = 73) amounted therefore to 9.5%. Serious complications of laparostomy occurred in 28% (n = 12) of the 43 patients, whereby 8 of these cases were gastrointestinal fistulae, with a fatal outcome in one patient. The overall mortality rate in the total group of 284 patients with acute pancreatitis was 2.8%.

Acute Disease↗

[A combined endoscopic surgical treatment concept in acute biliary pancreatitis].

This paper presents the results of a combined endoscopic-surgical approach with management of acute biliary pancreatitis in 91 patients. The diagnosis was always made by means of endoscopic-retrograde cholangiography. Papillary or bile duct stones, or unmistakable signs of previous stone passage, and in exceptional cases flow obstruction due to preiampullary diverticuli were considered criteria for a positive diagnosis. All 91 patients were subjected to endoscopic sphincterotomy with/without stone extraction subsequent to the diagnostic cholangiogram. Endoscopic intervention was performed as soon as possible after admission to hospital, but by 48 hours at the latest. Cholecystectomy was carried out in all patients who were free of risk factors and without previous cholecystectomy, during the disease-free interval. The complication rate of this combined endoscopic-surgical approach amounted to 10.9%; the mortality rate was 3.3%. The achieved results suggest that endoscopic sphincterotomy with stone extraction in the acute phase of biliary pancreatitis is the method of choice in order to interrupt the process of this disease. In combination with the final surgical treatment of gallstone disease by cholecystectomy to avoid recurrences, the prognosis of acute biliary pancreatitis can be significantly improved by using this combined endoscopic-surgical management.

Adult↗

[Extracorporeal shock wave treatment of calcium containing gallbladder calculi].

A total of 50 patients--37 female and 13 male--with an average age of 50 +/- 27 years (23-86 years), suffering from rim-calcified gallbladder stones, underwent extracorporeal shock-wave lithotripsy (ESWL), using an ultrasound-guided overhead module of Lithostar Plus (Siemens Company). The total number of stones was 87, with an average diameter of 16 +/- 7 (7-38) mm. 29 patients had a solitary stone, 13 had two and 8 patients three or more stones. All patients received adjunct medication of 10 mg/kg body weight chenodeoxycholic and ursodeoxycholic acid 14 days prior to ESWL as a single bedtime dose. An average number of 5,300 +/- 2,200 shock waves (1,200-15,000) was applied for stone disintegration. The corresponding energy amounted to 750 bar. 29 patients needed one, 21 two or more treatments. After ESWL a variety of clinical abnormalities was observed: flank pain (15%), transient microhaematuria (33%) and transient macrohaematuria (2%). Subsequent to ESWL 5 patients suffered from complications such as biliary obstruction 3 weeks to 9 months after treatment and had to undergo ERCP. Three times endoscopic papillotomy was performed to remove stones from the common bile duct. Up to now 4 patients have undergone cholecystectomy: acute cholecystitis (n = 3), recurrent colicky pain (n = 1). 20 patients have been followed up over a 12-month period; 12 of them are completely free of stones and fragments.

Adult↗

[Reconstruction-plasty of iatrogenic choledochal stenoses using human pericardium. An experimental study in the domestic pig].

The effect of human pericardial patch plastic for reconstruction of iatrogenic common bile duct stenosis was investigated in experiments performed in pigs. All patches (n = 8) were overgrown with immature biliary epithelium detectable on light and electron microscopy within 6 weeks. No restenosis nor any fistula developed during this observation period. Liver function tests, especially bilirubin, were not suitable parameters for the detection of biliary obstruction (preoperative value 0.38 +/- 0.09 mg/dl; 1 week after subtotal stenosis 3.36 +/- 1.53 mg/dl; 2 weeks after subtotal stenosis 1.49 +/- 0.62 mg/dl; 3 weeks after subtotal stenosis 0.50 +/- 0.27 mg/dl; 6 weeks after pericardial patch plastic 0.33 +/- 0.05 mg/dl, mean +/- SD. Ultrasonographic measurement of the common bile duct diameter was the diagnostic method of choice. Preoperative dimension 4.5 +/- 0.5 mm; 1 week after subtotal stenosis 8.5 +/- 2.0 mm; 2 weeks after subtotal stenosis 10.5 +/- 1.8 mm; 3 weeks after subtotal stenosis 14.0 +/- 3.6 mm; 6 weeks after pericardial patch plastic 9.0 +/- 1.6 mm, mean +/- SD.

Animals↗

[Prevention and treatment of postoperative fistulae--new indications for fibrin gluing].

The additional sealing of bronchial and gastrointestinal sutures and anastomoses, respectively, by means of fibrin sealant helped to significantly reduce the postoperative dehiscence rate; this rate amounted to 3.6% for additionally sealed bronchus stump occlusions and to 4.2% in gastrointestinal operations, whereby naturally in emergency abdominal operations the rate was higher (7.7%) than in elective surgery (3.8%). Eight postoperative bronchus stump fistulae and eleven out of the twenty-five gastrointestinal anastomotic dehiscences could be closed using a fibrin clot. Furthermore, fibrin occlusion of the pancreatic duct following Whipple's operation for the protection of the pancreatic-digestive anastomosis (n = 67) has turned out to be a success, since no postoperative pancreatic fistulae occurred, which resulted in the very low mortality rate of 1.5%. One more indication for fibrin sealing was the prevention of postoperative lymph fistulae by additional wound sealing (n = 123) and the fibrin occlusion of these fistulae (n = 18); the postoperative lymph fistulae rate amounted to only 3.3%. All 4 cases, as well as 14 other cases of existing lymph fistulae were healed quickly by instillation of fibrin. These relatively new, partly endoscopic, procedures using fibrin sealing proved to be very successful, because on the one hand postoperative fistulae could be largely avoided and on the other hand they could be treated without further operation.

Bronchial Fistula↗

[Non-occlusive disease--ultrasound diagnosis and trend analysis as a treatment guideline].

16 patients with angiographically proved NOD underwent immediate abdominal sonography (age: 76 +/- 24 years). All patients suffered from "low cardiac output syndrome". The sonographic criteria were as follows: bowel wall edema [16], hyper-peristalsis [16], free peritoneal fluid [14], and signs of incomplete ileus [14]. 11 patients were successfully treated with conservative therapy on the basis of followup ultrasound observation and analysis. 5 patients underwent operation because of worsening ultrasound findings. These patients died from the underlying cardiac illness.

Adult↗

[Intermittent incomplete ileus of the small intestine. Sonographic diagnosis and trends].

Intermittent incomplete intestinal obstruction was proven by sonography in 25 male and 48 female patients with an age range of 10 to 88 years. All of them suffered from intermittent colicky pain, nausea and meteorism followed by liquid stools. Only 52 patients had undergone a total of 69 abdominal operations. The pertinent symptoms could be traced back for 6 months to 10 years (4 +/- 3 years). In 47 patients, intake of bulky food during the last 12 to 48 hours triggered the onset of disorders. The preadmission diagnoses were: incomplete intestinal obstruction (only 21), gastroenteritis (15), biliary colic (13), peptic ulcer (10), renal colic (4), food intoxication (4), appendicitis (3), adnexitis (3). Sonographic findings were: inconstant lumen distension, visible bowel wall movements with contractions of 3 to 6 mm, food bolus, enhanced paradoxical peristalsis, proof of distended and collapsed gut segments, bowel wall edema and free peritoneal fluid. Based on these ultrasonic findings and trend observation, conservative treatment was successfully instituted. All patients were discharged symptom-free with no subsequent attacks for 12 months. 20 patients, subsequently suffering from complete intestinal obstruction after 1 to 3 years, were operated on, comprising 8 cases of intestinal resection, 7 cases of adhesiolysis and intestinal tube splinting, 3 cases of band dissection and 2 cases of palliative bypass procedures. The diagnostic accuracy of abdominal ultrasonography is clearly demonstrated by the fact, that 11 of these patients with intermittent incomplete intestinal obstruction and now suffering from complete obstruction had no previous abdominal surgery.

Adolescent↗

[Protection of the pancreatico-digestive anastomosis following resection of the head of the pancreas by pancreatic duct occlusion with fibrin (-glue). Animal experiment and clinical experiences].

The pancreatico-digestive anastomosis is especially then endangered by dehiscence when, following resections due to carcinomas, a healthy lienal pancreatic rest has to be connected to the intestine. In the last years the pancreatic duct occlusion (PDO) with Prolamin proved to be possible for the elimination of the disturbing exocrine secretion. Apart from a strong exocrine fibrosis, a deterioration of the endocrine function results too. In animal experiments as well as clinically a simple and effective method for the protection of the pancreatico-digestive anastomosis could be developed by PDO with fibrin sealant (FS). Contrary to PDO with Prolamin a lower-grade, interstitial fibrosis under intact exocrine function is caused due to the short, 6 days at the most lasting blockade of the exocrine pancreatic secretion. Because of the high tryptic activity of the pancreatic juice 20,000 IU/ml Aprotinin were added to the fibrin sealant. So far this method was employed successfully in 36 patients within the scope of Whipple's operations due to pancreatic head carcinomas.

Ampulla of Vater↗