Gastrointestinal stromal tumors of the stomach. A ten-year surgical experience.

Gastrointestinal stromal tumors show an increasing incidence. Immunohistochemistry is mandatory to make differential diagnosis with other mesenchimal tumors. We retrospectively reviewed 15 primary stomach GISTs operated during the last decade. Gastroscopy, Ultrasonography and CT scan were employed to obtain the diagnosis. Tumor size ranged from 1.5 to 30 cm in diameter. Treatment consisted of curative surgical resection without sistematic lymph node dissection. A wedge resection was sufficient in 8 cases. In 2 patients a distal subtotal gastrectomy was required and in 1 a total enlarged gastrectomy with pancreaticosplenectomy was performed. 4 GISTs were incidentally discovered and removed during surgical procedures for other gastrointestinal malignancies. In 4 cases a laparoscopic wedge resection was possible. In all cases postoperative course was uneventful. No adjuvant treatment was administered. Concerning the follow-up, two patients died for local and distant relapse while 13 are still alive (most of them operated during the last three years). GISTs show a very unpredictable clinical course and curative surgery is the only potential effective curative treatment.

Pancreatic resections: early results and functional behaviour of the stapled pancreatic stump.

Pancreaticoduodenectomy is the standard surgical treatment for patients with pancreatic head cancer. Morbidity and mortality rates following this procedure have constantly decreased over the past several years. Leakage of the pancreaticoenteric anastomosis is one of the most serious complications, often responsible for a fatal outcome. Several methods for the management of the pancreatic stump have been described in order to reduce the worrisome incidence of this complication, with variable results. In this series, the Authors review their experience of 75 pancreatic resections and analyze the early results and functional behaviour of 6 patients in which the pancreatic stump was stapled without pancreaticoenteric anastomosis.

Diagnostic and surgical features of Klatskin tumors.

AIM OF STUDY: Klatskin tumors are rare and their prognosis is poor. Long term survival can be expected only after a surgical resection, the treatment of choice. The aim of this study is to report our single centre experience and, by literature analysis, to define the role of surgery in the treatment of hilar cholangiocarcinoma. MATERIALS AND METHODS: Between 1990 and 1998, 27 patients affected by Klatskin's tumor were observed. Eight women and seven men (mean age 59 years) underwent surgical resection. Thirteen patients (86%) had curative resection (7 hilar resection (HR), 4 HR combined with partial hepatectomy (PH) and 2 HR + PH with portal vein resection). Two patients (13%) had palliative biliary resection and surgical drainage. RESULTS: One in-hospital death was recorded after a right hepatectomy with portal vein resection (6.6%). Postoperative morbidity rate was 40%. Patients were regularly followed up to date or to death. Ten patients died and 5 survived. The 1-, 2- and 3-year survival rate after curative resection was 84%, 54% and 34%. The median survival was 28.5 months. Lymph node involvement did not show a statistically significant difference on median survival between the positive group and the negative group (26.2 vs 29.8 months), nor did perineural invasion, because of the small number of patients. The 1-, 2-, 3- and 5-year survival rate after isolated hilar resection was 100%, 57.1%, 28.6% and 0. Four out of 6 patients who underwent hilar resection combined with partial hepatectomy are still alive 1, 23, 29, 38 months after resection. Hepatectomy increased mortality (16% vs 0). Palliative biliary resection and surgical drainage were successfully performed in 2 patients with satisfactory results. CONCLUSION: Aggressive surgical treatment of Klatskin tumors can improve patients' survival. Careful preoperative management has to be carried out by a multidisciplinary approach including surgeons, gastroenterologists, radiologists and pathologists. Hepatic resection involving the caudate lobe is often performed in order to obtain microscopic tumor-free margins and curative resection (R0). Biliary drainage and treatment of cholangitis is mandatory before surgery in order to improve surgical outcome. Surgical treatment is characterized by high technical difficulties and better results can be achieved by hepatobiliary surgical teams.

Lessons learned from a complicated case of cephalic obstructive chronic pancreatitis.

The authors report the complex case of a 51 year-old man admitted to his local hospital for gallbladder and common bile duct lithiasis, 1 year before admission to our hospital. There, he was treated by cholecystectomy and transduodenal biliary sphincteroplasty. He was readmitted after 3 months because of a painful episode and was discharged with the diagnosis of "relapsing acute pancreatitis in chronic pancreatitis." At our hospital, he underwent laparotomy and revision of the previous transduodenal biliary sphincteroplasty. Pancreatic sphincteroplasty and septectomy were also performed. The night after surgery, the patient suffered from acute post-operative pancreatitis complicated by severe hemorrhage due to erosion of the superior pancreaticoduodenal arteries, treated with gastroduodenal artery embolization by tungsten coils. Three months later, the patient suffered from another acute episode. An endoscopic retrograde colangio pancreatography (ERCP) showed the complete patency of the sphincteroplasties but clearly identified the persistence of a severe cephalic stricture. Therefore, the patient was readmitted to our hospital and underwent another laparotomy. A pylorus-preserving pancreaticoduodenectomy (PPPD) was performed. The post-operative course was uneventful and at 14 months follow-up the patient was in good health. The discussion focuses on the surgical treatment of chronic pancreatitis with cephalic Wirsung duct stenosis, stressing the increasing role of PPPD as a first-choice option.

[History of reconstruction following total gastrectomy]. / Storia della ricostruzione dopo gastrectomia totale.

Near a century after the first successful total gastrectomy for gastric cancer, the authors review the various technical proposals for digestive tract reconstruction following total gastrectomy. Following a classification based on duodenal circuit, on the viscerum employed and on the creation of pouches and/or anti-reflux mechanisms, pros and cons of the various classes of reconstructions are clearly depicted, suggesting the reasons that made Roux-en-Y esophago-jejunostomy and jejunal interposition the most used reconstructive procedure in worldwide clinical practice.

[Constipation following hysterectomy. Retrospective study based on 105 cases]. / Stipsi post isterectomia. Studio retrospettivo su 105 casi.

Constipation after surgery is considered as a subgroup of patients in whom the disorder begins after pelvic surgery. A group of patients (median age 52 years with a range of 34-65 years) who had a hysterectomy underwent a retrospective study with the aid of a questionnaire and clinical records, to evaluate the incidence of constipation before and after the operation. Forty patients were operated on for benign pathology and 65 for malignant pathology. Forty-two patients underwent a Wertheim-Meigs, 39 had laparohysterectomy, 20 had a colpohysterectomy and 4 had a Schauta. The incidence of constipation increased from 25% preoperatively to 38% postoperatively (p < 0.05). There is no difference in the incidence of postoperative constipation among the various operations. Constipation after hysterectomy is associated with urinary disorders. These data confirm previous studies on the effect of hysterectomy on urinary and defaecatory functions and they show how a simple colpohisterectomy can cause constipation.