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Basil J Ammori

Publications and source records attributed to Basil J Ammori.

At least 19 recordsLinked to original sources
PubMed2006

Minimally invasive pancreatic surgery: the new frontier?

Recent advances in minimally invasive pancreatic surgery encompass laparoscopic, retroperitoneoscopic, endoscopic, thoracoscopic, and percutaneous approaches. Applications of endoscopic pancreatic surgery include laparoscopic resection, necrosectomy, drainage of pseudocysts, gastric and biliary bypass, and thoracoscopic splanchnotomy. This review provides an update on laparoscopic pancreatic resections. Over 400 cases of laparoscopic distal pancreatectomy (LDP) and enucleation (LEn) have been reported in the English literature, largely for benign disease. LDP and LEn have been associated with reductions in blood loss, morbidity, and hospital stay and a greater rate of splenic preservation compared with open surgery. Laparoscopic ultrasound is essential for intraoperative localization of insulinomas because failure of localization is the most common cause for conversion to laparotomy. The role of LDP with en bloc splenectomy and laparoscopic pancreaticoduodenectomy (LPD) for malignancy remains controversial. The majority of LPDs have been performed for malignancy. The short-term results of the limited world experience of 34 reported LPDs appear favorable.

Humans↗
PubMed2006

Laparoscopic gastric and biliary bypass: a single-center cohort prospective study.

PURPOSE: Relief of gastric outlet and distal biliary obstruction may be accomplished by open surgery or by minimally invasive techniques including endoscopic and laparoscopic approaches. We examined the feasibility and safety of laparoscopic gastric and biliary bypass in all patients with malignant and benign disease requiring surgical relief of obstructive symptoms. MATERIALS AND METHODS: Patients with benign duodenal stricture or inoperable malignancy underwent therapeutic laparoscopic bypass surgery. Prophylactic gastric or biliary bypass was added in selected patients with nonmetastatic malignancy. RESULTS: Twenty-eight patients (17 of them female) with a median age of 67 years (range, 26-81 years) underwent 29 laparoscopic bypass procedures for malignant (n = 23) or benign (n = 6) disease. One patient who underwent a Roux-en-Y gastrojejunostomy for non-steroidal anti-inflammatory drug induced ulcer disease developed stenosis of the stoma that required laparoscopic refashioning 2 months later, accounting for the 29th procedure reported herein in 28 patients. Surgery included the construction of a single gastric (n = 16) or biliary (n = 5) bypass or a double bypass (n = 8), and an additional prophylactic bypass in 5 of 23 cancer patients (21.8%). All procedures were completed laparoscopically. The median operative time was 90 minutes (range, 60-153 minutes) and mean postoperative hospital stay was 4 days (range, 3-6 days). Complications developed following 4 procedures (13.8%) and 1 patient died (3.4%). No complications occurred in patients with prophylactic bypass. One patient required laparoscopic revision of the gastroenterostomy 2 months postoperatively, for benign disease. No recurrence of obstructive symptoms was observed in cancer patients during follow-up. CONCLUSION: Laparoscopic bypass surgery for distal biliary and gastric obstruction in patients with benign or malignant disease results in low morbidity and mortality and short postoperative hospital stay. The addition of prophylactic bypass in patients with nonmetastatic unresectable malignancy appears safe and effective.

Adult↗
PubMed2006

Laparoscopic versus open splenectomy for massive splenomegaly: a comparative study.

BACKGROUND: Despite the benefits of the laparoscopic approach to splenectomy, its application in patients with massive splenomegaly (splenic weight >or= 1000 g) remains controversial. In this study we evaluated the safety and feasibility of laparoscopic splenectomy for massive splenomegaly compared with open splenectomy. MATERIALS AND METHODS: One surgeon applied the laparoscopic approach to splenectomy to all comers with massive splenomegaly, while other surgeons carried out the surgery through a laparotomy. The outcomes of the two approaches were compared on an intention-to-treat basis. Results of continuous variables are shown as medians. RESULTS: Fifteen patients underwent laparoscopic splenectomy between 2000 and 2005, and 13 underwent open splenectomy between 1996 and 2003. The two groups were comparable for age, sex, American Society of Anesthesiologists score, and splenic weight (1.3 vs. 1.1 kg). There was one conversion (6.6%) to open surgery. Although laparoscopic splenectomy was associated with significantly longer operating time (175 vs. 90 minutes, P < 0.001), it carried lower postoperative morbidity and mortality (13.3 vs. 30.8% and 0 vs. 7.7%, respectively). Laparoscopic splenectomy was associated with significantly lower total dose (29 vs. 264 mg morphine-equivalent, P < 0.0001) and duration of opiate usage (1 vs. 4 days, P < 0.0001); duration of parenteral hydration (24 vs. 96 hours, P = 0.006) and more rapid resumption of oral diet (24 vs. 72 hours, P = 0.017); and a shorter postoperative hospital stay (3 vs. 10 days, P < 0.0001). CONCLUSIONS: The laparoscopic approach to splenectomy for massive splenomegaly is feasible and safe. Despite a longer operating time, the postoperative recovery following laparoscopic splenectomy is smoother, with lower morbidity and shorter postoperative hospital stay compared with open splenectomy.

Adult↗
PubMed2006

Closed blunt-trocar 5 mm-port for primary cannulation in laparoscopic surgery: A safe technique.

Primary cannulation of the peritoneal cavity is a critical part of laparoscopic surgery. The aim of this study was to evaluate the safety and applicability of a direct blunt-port primary cannulation. The peritoneal cavity was accessed by direct trocar-port insertion at sites other than the umbilicus and avoiding abdominal scars. A 5-mm port with a smooth blunt tip conical trocar was employed using a closed technique. The closed blunt trocar-port technique for primary cannulation of the peritoneal cavity was applied in 503 of 524 patients (96%) who underwent laparoscopic surgery between 2002 and 2005. Some 199 patients (38%) had abdominal scars of previous surgery. There were no major complications, but minor complications occurred in 3 patients (0.6%). No bowel or retroperitoneal vascular injuries were encountered. The closed introduction of a blunt-tipped 5-mm port, conical-trocar is a simple technique for primary cannulation in laparoscopic surgery that allows safe and rapid access to the peritoneal.

Adolescent↗
PubMed2005

Clinical laboratory assessment of acute pancreatitis.

BACKGROUND: Several biochemical markers in blood and urine have been investigated to establish their clinical application in patients with acute pancreatitis (AP). The relevant studies are reviewed and critically appraised. METHODS: Medline and the World Wide Web were searched and the relevant literature was classified under the following categories: (1) diagnosis of AP and (2) prediction of: a) disease severity, b) pancreatic necrosis and its secondary infection, c) organ failure and death, and d) disease etiology. RESULTS AND CONCLUSIONS: Serum lipase is a more reliable diagnostic marker of AP than serum amylase. Urinary strip tests for trypsinogen activation peptide (TAP) and trypsinogen-2 provide a reliable early diagnosis of AP. Useful predictors of severity may include serum procalcitonin and urinary TAP and trypsinogen-2 on admission, serum interleukins-6 and -8 and polymorphonuclear elastase at 24 h, and serum C-reactive protein (CRP) at 48 h. Other markers such as amyloid A and carboxypeptidase B activation peptide (CAPAP) need further investigation. Biochemical prediction of pancreatic necrosis requires 72 h to reach reliability and is impractical. However, the daily monitoring of serum procalcitonin provides a non-invasive detection of infected necrosis; the promising role of phospholipase A(2) in this regard requires further investigation. Early transient hypertransaminasemia reliably predicts biliary etiology, while serum carbohydrate-deficient transferrin and trypsin may predict an alcoholic etiology.

Acute Disease↗
PubMed2005

Transjugular intrahepatic porto-systemic shunt and variceal embolisation in the management of bleeding stomal varices.

BACKGROUND AND AIMS: Bleeding from stomal varices is uncommon. Local measures to control the bleeding offer short-lived control. Our experience with transjugular intrahepatic porto-systemic shunt (TIPS) and variceal embolisation is presented and appraised. PATIENT AND METHODS: Three patients presented with bleeding from stomal varices (Child-Pugh class B, n=2 and class C, n=1) in association with primary sclerosing cholangitis, autoimmune hepatitis and alcoholic liver disease. Local treatment measures including suture ligation, sclerotherapy and re-siting of the stoma achieved short-lived control. TIPS were inserted in all 3 patients, with embolisation of the stomal varices in 2. RESULTS/FINDINGS: The radiological interventions were uncomplicated and resulted in cessation of the bleeding in all patients. One of the patients has had no further bleeding at 12 months' follow-up post-TIPS insertion. The other two patients re-bled at 5 and 6 months post-TIPS insertion and were successfully managed by insertion of a second TIPS in one patient and by balloon dilatation of the TIPS in another. The former patient has had no re-bleeding at a further 8 months' follow-up, while the latter had re-bleeding at 12 months post-TIPS insertion and underwent liver transplantation. INTERPRETATION/CONCLUSION: Transjugular intrahepatic porto-systemic shunt with variceal embolisation offers an effective, minimally invasive management option in patients with bleeding stomal varices, and may be used as the primary mode of intervention in conjunction with medical therapy, and as the definitive therapy in patients unfit for surgery. TIPS and variceal embolisation do not preclude subsequent liver transplantation, and may be used during the acute situation as a bridge to transplantation.

Adult↗
PubMed2005

Laparoscopic gastric bypass for gastric outlet obstruction is associated with smoother, faster recovery and shorter hospital stay compared with open surgery.

BACKGROUND/PURPOSE: Laparoscopic gastric bypass for relief of gastric outlet obstruction (GOO) is feasible and safe. However, comparative data to confirm the benefits of the laparoscopic approach remain scarce. METHODS: Between 1998 and 2003, 26 patients underwent 15 laparoscopic (surgeon A) and 12 open (surgeon B) gastrojejunostomies (GJs) for GOO. The indications for surgery included malignant (n = 17) and benign (n = 10) diseases. RESULTS: There were no conversions to open surgery in the laparoscopic group, and no operative mortality occurred in either group. The groups were comparable for age, sex, American Society of Anesthesiology (ASA) score, frequencies of previous abdominal surgery and of malignant or benign disease, and type of GJ fashioned. There were no differences between the laparoscopic and open groups with regard to the operating time (median, 90 vs 111 min; P = 0.113), and patients receiving intraoperative blood transfusion. However, laparoscopic surgery was associated with significantly shorter durations of postoperative intravenous hydration (60 vs 234 h; P = 0.001), opiate analgesia (49 vs 128 h; P = 0.025), and hospital stay (3 vs 15 days; P = 0.005). Operative morbidity occurred more frequently following open surgery (33% vs 13%; P = 0.219). CONCLUSIONS: Laparoscopic GJ for the relief of GOO is associated with a smoother and more rapid postoperative recovery and shorter hospital stay compared with open surgery. In experienced hands, the laparoscopic approach to GJ should become the new gold standard.

Female↗
PubMed2005

Laparoscopic surgery for the management of obstruction of the gastric outlet and small bowel following previous laparotomy for major upper gastrointestinal resection or cancer palliation: a new concept.

BACKGROUND: Surgical relief of gastric outlet obstruction (GOO) or small bowel obstruction in patients who had undergone major resection or palliative bypass surgery for malignancy is conventionally achieved at a laparotomy. The potential role of minimally invasive surgery in the management of these complications has not been previously explored. METHODS: Between 2003 and 2004, 4 consecutive patients, age range 37 to 72 years, where admitted with gastric outlet or proximal small bowel obstruction following previous open surgery for suspected intra-abdominal malignancy, under the care of one surgeon. The respective past histories of these patients were recurrent GOO and concomitant distal biliary obstruction following a previous open gastric bypass elsewhere for metastatic pancreatic head cancer; persistent adhesive small bowel obstruction following radical gastrectomy for gastric cancer; GOO secondary to intra-abdominal recurrence 6 months after hepatobiliary resection for hilar cholangiocarcinoma; and GOO following previous pancreatico-duodenectomy for suspected pancreatic head cancer. Their respective surgical management consisted of a laparoscopic re-do gastric bypass and concomitant cholecystojejunostomy; adhesiolysis and revision of the Roux-en-Y enteric anastomosis; a Devine exclusion gastroenterostomy; and resection and refashioning of the gastroenterostomy. RESULTS: There were no conversions to open surgery and no postoperative complications. The median operating time was 240 minutes (range, 145 to 300 minutes). Oral free fluid intake was resumed on postoperative day (POD) 1, while diet was resumed between POD 2 and 4. The median postoperative hospital stay was 15.5 days (range, 14 to 25 days). CONCLUSION: Previous laparotomy and major resection or palliation of malignancy do not preclude the application of the laparoscopic approach for the management of upper gastrointestinal obstruction. Laparoscopic adhesiolysis and revision of enteroenteric and gastroenteric anastomoses are feasible management options in the hands of those experienced with complex laparoscopic surgery.

Adult↗
PubMed2005

Leukotriene inhibitors in combination with steroids: potential role in the development of primary bacterial peritonitis.

Leukotrienes play a role in inflammation, and their participation in airway inflammation and bronchoconstriction in patients with severe asthma can be ameliorated by a new class of drugs known as leukotriene modulators. The role of leukotrienes in increasing vascular permeability in experimental peritonitis and in inducing chemotaxis of inflammatory cells has recently been documented. Steroids have been incriminated in the development of bacterial translocation in animal models in association with the suppression of mucosal immunity. The development of spontaneous bacterial peritonitis is recognized in cirrhotic patients with ascites and in those with nephrotic syndrome. The onset of bacterial peritonitis in the absence of these predisposing conditions or other underlying cause, such as perforated viscus, is termed 'primary bacterial peritonitis', and has never been described in asthmatic patients. We present an asthmatic patient who developed primary bacterial peritonitis while receiving a leukotriene modulator in combination with prednisolone therapy. The hypothesis that leukotriene receptor blockade might predispose to the development of primary bacterial peritonitis in patients receiving steroid therapy is discussed.

Acetates↗
PubMed2005

Laparoscopic diagnosis and management of primary bacterial peritonitis.

Primary bacterial peritonitis is a rare condition occurring, by definition, in patients without an underlying cause as is otherwise observed in patients with perforated viscus, pre-existing ascites, or nephrosis. The diagnosis is usually made at laparotomy. Laparotomy, however, is often associated with significant morbidity and wound complications. We report a case of primary bacterial peritonitis diagnosed at laparoscopy that was managed successfully by laparoscopic peritoneal lavage and appropriate antibiotic therapy with expeditious recovery. This is yet another argument for the application of laparoscopy in the management of generalized peritonitis.

Aged↗
PubMed2005

Contemporary minimally invasive approaches to the management of acute cholecystitis: a review and appraisal.

Acute cholecystitis is one of the most common emergency admissions in surgical practice. This review appraises the available evidence from the English-language literature regarding the minimally invasive approaches to the management of this condition. The following aspects of care are reviewed and appraised: (1) the diagnostic criteria for acute cholecystitis, (2) the optimal timing for cholecystectomy (early, delayed, or interval surgery), (3) the optimal approach to cholecystectomy (laparoscopic versus open), (4) the role of intraoperative cholangiography, and (5) the management of patients unfit for surgery.

Cholangiography↗
PubMed2005

Predictors of duration of postoperative hospital stay in patients undergoing advanced laparoscopic surgery.

The expansion of the indications for laparoscopic surgery to include high-risk patient, acute and malignant pathology, and more complex procedures may prolong the hospital stay. Cox multiple stepwise regression analysis model was employed to determine independent predictors of prolonged postoperative hospital stay (more than 3 days) following advanced laparoscopic procedures among 10 variables. Some 130 patients had undergone advanced laparoscopic surgical procedures between November 2000 and August 2003. The median postoperative hospital stay was 3 days (interquartile range 2-5), and 81 patients (62.3%) were discharged within 3 days of surgery. The independent predictors of prolonged postoperative hospital stay were ASA score of 3 or 4 (odds ratio [OR] = 4.610, P = 0.0002) and preoperative hospital stay (OR = 0.151 per day, P = 0.001). Independent predictors of duration of preoperative hospital stay were emergency admission to hospital (OR = 9.516, 95% CI 5.770-13.261, P < 0.0001) and an underlying malignant pathology (OR = 7.948, 95% CI 3.623-12.273, P = 0.0004). Advanced laparoscopic surgery is associated with a short postoperative hospital stay in the majority of patients. Prolongation of the postoperative hospital stay (more than 3 days) may be expected if the patient had been in the hospital with an acute or malignant disease for more than 6 days prior to surgery and in patients with high comorbidity. The duration of surgery has no impact on the duration of the postoperative hospital stay.

Adolescent↗
PubMed2004

A simple technique to fix the reservoir in laparoscopic gastric banding.

Laparoscopic gastric banding is an established approach for the surgical correction of morbid obesity. Fixation of the reservoir to the anterior abdominal wall is a cumbersome procedure that invariably involves an extension of the skin incision and rather tedious suturing in the depth of the wound. Inadequate completion of this step may lead to tilting of the reservoir, which may hinder future band inflations. This paper describes a simple technique to overcome this difficulty.

Gastroplasty↗
PubMed2004

An "all 5-mm ports" selective approach to laparoscopic cholecystectomy, appendectomy, and anti-reflux surgery.

Laparoscopic appendectomy, cholecystectomy, or anti-reflux procedures are conventionally performed with the use of one and often two 10/12-mm ports. While needlescopic or micropuncture laparoscopic procedures reduce postoperative pain, they invariably involve the use of one 10/12-mm port and the instruments applied have their ergo-dynamic shortcomings. Between September 2002 and March 2003, we have attempted an "all 5-mm ports" approach in 49 laparoscopic procedures, which included 18 of 59 laparoscopic cholecystectomies (31%), 26 diagnostic laparoscopies for suspected appendicitis (of which we proceeded to a laparoscopic appendectomy in 17 patients), and in the last 5 of 9 laparoscopic Nissen fundoplications. Conversion of one of the 5-mm ports to a 10-mm port was required in 5 of the 18 (28%) laparoscopic cholecystectomies and in 6 of the 17 (35%) laparoscopic appendectomies to facilitate organ retrieval in patients with large gallstones (>5 mm in diameter) and in obese patients with fatty mesoappendix. There were no conversions to open surgery. No significant differences in the operating time between the laparoscopic procedures performed by the all 5-mm ports approach or the conventional approach were observed. No intraoperative or postoperative complications occurred in this series. The "all 5-mm ports" approach to laparoscopic cholecystectomy and appendectomy in selected patients and to laparoscopic fundoplication appears feasible and safe. A randomised comparison between this approach and the conventional laparoscopic approach to elective cholecystectomy and fundoplication in which two of the ports employed are of the 10-mm diameter is warranted.

Appendectomy↗
PubMed2003

Day-case laparoscopic cholecystectomy: a prospective evaluation of a 6-year experience.

BACKGROUND/PURPOSE: Day-case laparoscopic cholecystectomy (LC) offers convenience to patients and cost saving to the healthcare institutes. This article reviews our prospectively recorded experience with day-case LC to determine its applicability and safety, as well as patient satisfaction. METHODS: Of 744 consecutive patients who underwent LC over a 6-year period, 140 (19%) were scheduled for day-case surgery. Selection criteria included American Society of Anesthesiologists (ASA) score of 1 or 2, absence of morbid obesity, low risk for common bile duct stones, domicile within 50 km of the hospital, age greater than 18 and less than 75, and the ability to admit the patient on the day of surgery for operation during the morning. Patient satisfaction with day-case surgery was assessed by questionnaire at 4-6 weeks after operation. RESULTS: Some 117 of the 140 patients (84%) were discharged home on the same day of the operation. Two patients were re-admitted with abdominal pain, 1 of whom underwent a negative re-laparoscopy. There were no major complications. The reasons for overnight hospital stay were anesthetic in 12 (52%), surgical in 7 (30%), and social or logistic in 4 (18%) patients. There were no conversions. The proportion of patients scheduled for day-case remained static (median, 18.5%; range, 16%-22%). Some 99 of 105 patients (94%) who completed the questionnaire were satisfied with day-case surgery. CONCLUSIONS: In carefully selected patients, day-case LC is achievable and safe, and provides good patient satisfaction.

Adult↗