نتایج جستجو برای: controlled drainage
تعداد نتایج: 422373 فیلتر نتایج به سال:
Abstract This simulation study focused on the hydrological effects of climate change and controlled drainage operated with subsurface drains an open collector ditch in agricultural field. The objective was to understand potential schemes for managing groundwater levels field water balance conditions projected take place Finland during 21st century representative concentration pathways 8.5 2.6. ...
Colon and rectal anastomoses do not require routine drainage: a systematic review and meta-analysis.
OBJECTIVE Many surgeons continue to place a prophylactic drain in the pelvis after completion of a colorectal anastomosis, despite considerable evidence that this practice may not be useful. The authors conducted a systematic review and meta-analysis of randomized controlled trials to determine if placement of a drain after a colonic or rectal anastomosis can reduce the rate of complications. ...
BACKGROUND The prognostic significance of multiple draining basins is controversial in melanoma because analyses have not adequately controlled for standard prognostic variables. We hypothesized that an analysis based on prognostically matched pairs of patients with multiple versus single drainage basins would clarify any independent role of basin number. STUDY DESIGN We identified patients i...
Background: Chronic subdural hematoma is a common neurosurgical condition especially in the aging population. Burr hole for drainage is an effective treatment, yet recurrence is reported at 8 to 22 % worldwide, and 1-year mortality rates could be as high as 32 %. Our previous study on the use of dexamethasone as a primary nonsurgical treatment showed good response in selected group of patients....
Digital elevation models (DEMs) are a useful data source for the automatic delineation of flow paths, sub watersheds and flow networks for hydrologic modeling. Digital representation of the flow network is central to distributed hydrologic models because it encodes the model element linkages through which flow is routed to the outlet. The scale (drainage density) of the flow network, used contr...
OBJECTIVE To evaluate the results of chest drainage using one 24F Blake drain after standard thoracic operations (wedge resection and lobectomy). METHODS In 2005, 100 consecutive patients underwent drainage of their pleural cavity following lobectomy or wedge resection(s). There were 70 men and 30 women, with a mean age of 55 years (17-83). There were 47 lobectomies (23 upper, 5 middle, 19 lo...
BACKGROUND The benefits of preoperative biliary drainage, which was introduced to improve the postoperative outcome in patients with obstructive jaundice caused by a tumor of the pancreatic head, are unclear. METHODS In this multicenter, randomized trial, we compared preoperative biliary drainage with surgery alone for patients with cancer of the pancreatic head. Patients with obstructive jau...
BACKGROUND Spinal fusion surgery is associated with significant blood loss, which may result in potential clinical complications, it is necessary to take safe and effective measures to reduce blood loss in surgery. We perform this study to assess the impact of three different hemostatic materials on perioperative blood loss. METHODS We performed a Randomized Controlled Trial research and recr...
BACKGROUND For patients with chronic pancreatitis and a dilated pancreatic duct, ductal decompression is recommended. We conducted a randomized trial to compare endoscopic and surgical drainage of the pancreatic duct. METHODS All symptomatic patients with chronic pancreatitis and a distal obstruction of the pancreatic duct but without an inflammatory mass were eligible for the study. We rando...
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