نتایج جستجو برای: leak specifications
تعداد نتایج: 46604 فیلتر نتایج به سال:
BACKGROUND Prosthetic valve leak is a possible complication of surgical valve replacement. Although uncommon, its consequences may be serious. Few studies correlate the degree of prosthetic valve leak with clinical events. OBJECTIVE To compare the postoperative outcome of patients with mild/moderate (Mi/Mo) or severe (Sev) prosthetic valve leak METHODS A total of 185 patients with prostheti...
Background: Proposing a strategy for sellar reconstruction in endoscopic transsphenoidal transsellar approach for pituitary adenoma. Methods: 240 patients with pituitary adenoma underwent pure endoscopic endonasal transsphenoidal surgery. Intra-operative CSF leaks were classified as grade 0, no observable leak grade 1, CSF dripping through an arachnoid membrane defect of less than 1 ...
The efficient use of water resources is a subject of major concern for water utilities and authorities. One of the main challenges in improving the efficiency of drinking water networks is to minimize water loss in pipes due to leakage. Water leaks in water distribution networks are unavoidable. They can cause significant economic losses in fluid transportation and an increase on reparation cos...
Background: CSF leak during or after transsphenoidal surgery is the most common annoying complication that may lead to fatal meningitis. Objective: To define the effectiveness of the external CSF lumbar drain to stop the leak either inserted preoperative, immediate postoperative or delayed postoperative with the same figure of packing to the sella turcica and sphenoid sinus. Methods: We retrosp...
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