Mesenteric venous thrombosis. Associated systemic disorders and hypercoagulability status of 21 surgical patients.

BACKGROUND/AIMS: Mesenteric venous thrombosis (MVT) is a rare condition with a challenging diagnosis. The aim of this study was to evaluate its association with systemic diseases and coagulation disorders. METHODOLOGY: Out of 132 patients operated on because of mesenteric ischemia between 1988 and 2002, all patients with a documented MVT were retrospectively recorded. Epidemiological and clinical data, complications and perioperative mortality were analyzed. RESULTS: Twenty-one patients, 10 male and 11 female, had MVT. Mean age was 63.8 years (SD: +/- 20.9). Arterial hypertension (57.1%) was the most prevalent associated condition. Other associated disorders were neoplasms (3 cases), liver cirrhosis (1 case), recurrent pulmonary thromboembolism (1 case), and one or more coagulation disorders (7 cases): lupus anticoagulant (2 cases); factor V Leiden (2 cases); protein S deficiency (3 cases); antithrombin III deficiency (1 case) and disseminated intravascular coagulation (1 case). Perioperative mortality was 33.3% (7 patients). Mean survival at the end of the study was 65.73 months (EE: 13.82). Patients with a coagulation disorder had a higher survival rate than those presenting without it (p = 0.02). CONCLUSIONS: MVT is still a lethal condition with a high morbidity that could be associated to systemic disorders and hypercoagulability syndromes in more than 50% of the cases.

Anastomotic stricture with the EEA-Stapler after colorectal anastomosis.

OBJECTIVE: Analysis of colorectal anastomosis stricture incidence after anterior resection of the rectum performed with the EEA-Stapler. To find out if differences existed in stricture incidence considering factors such, as age, neoplasia, postoperative radiotherapy, tumor stage and anastomic level. DESIGN: Longitudinal descriptive study. PATIENTS AND METHOD: 67 patients who underwent rectal anterior resection using the EEA-Stapler were evaluated. Data from sex, age, indication for operation, postoperative radiotherapy, tumor staging and anastomic level were recorded and compared with presence of stricture anastomosis. Stenosis was evaluated and graded as follows: grade O, no stenosis; grade I, no symptoms, X-ray or endoscopic finding; grade II, symptoms, the patients require ballon catheter dilation; and grade III, invalidant symptoms, the patients require surgery. RESULTS: Twelve patients (20%) were recorded as grade II and 3 patients (5%) as grade III. There were no statistically significant differences between prevalence of stricture and sex, age, neoplasic or non-neoplasic conditions, previous radiotherapy, level of anastomosis, and tumor stage. CONCLUSION: Stenosis after colorectal anastomosis with stapler devices must not be considered as an uncommon complication. In 20% of patients it may be a serious state that may require repeated catheter balloon dilations or surgery. Such condition is not dependent on diverse factors studied.