نتایج جستجو برای: clamping time
تعداد نتایج: 1895351 فیلتر نتایج به سال:
BACKGROUND To explore the feasibility and safety of retroperitoneal laparoscopic partial nephrectomy with sequential segmental renal artery clamping for the patients with multiple renal tumor of who have solitary kidney or contralateral kidney insufficiency. METHODS Nine patients who have undergone retroperitoneal laparoscopic partial nephrectomy with sequential segmental renal artery clampin...
Cerebral Blood Flow Measurement as a Safeguard During Carotid Endarterectomy • Intraoperative measurement of regional cerebral blood flow (rCBF) by the Xe intracarotid injection technique was performed in 17 patients operated on for stenosis of the internal carotid artery. Mean rCBF decreased from 51 ml/100 gm x minute before endarterectomy to 30 ml/100 gm x minute when the internal carotid art...
INTRODUCTION The most common method used for myocardial protection is administering cardioplegic solution in the coronary circulation. Nevertheless, protection may be achieved by intermittent perfusion of the coronary system with patient's own blood. The intermittent perfusion may be performed by multiple sequences of clamping and opening of the aortic clamp or due single clamping and accessory...
PURPOSE Molecular testing in non-small cell lung cancer (NSCLC) aids in identifying oncogenic alterations. The aim of this study was to compare the rates of detection of oncogenic alterations and responsiveness to epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) according to EGFR mutation status as determined by peptide nucleic acid (PNA) clamping or direct sequencing (DS...
INTRODUCTION The cerebral protective effect of xenon anesthesia could be of interest during carotid surgery. The purpose of this study was to compare the effects of xenon on cerebral oxygen saturation with those of propofol during carotid clamping. METHODS After approval of Research Ethics Board and patient informed consent, 74 patients scheduled for carotid endarterectomy were enrolled. Pati...
A critical shortage of donors exists for liver transplantation, which non-heart-beating cadaver donors could help ease. This study evaluated ischemic preconditioning to improve graft viability after non-heart-beating liver donation in rats. Ischemic preconditioning was performed by clamping the portal vein and hepatic artery for 10 min followed by unclamping for 5 min. Subsequently, the aorta w...
We describe the relation between umbilical cord clamping time and two different enrichment system of CD34(+) stem cells from umbilical cord blood with the proliferative ability and bone marrow reconstitution of the stem cells obtained. After an obstetrician performed the cord blood collection, the purification of stem cells was performed either with a combination of monoclonal antibodies (negat...
Objectives. Surgical treatment of JAAs (juxtarenal aortic aneurysms) requires suprarenal aortic cross-clamping, causing temporary renal artery occlusion. To safeguard postoperative renal function, we implemented a standardized protocol of hypothermic renal perfusion for all elective JAA operations. Design. Retrospective study. Materials and Methods. In a period of 6 years, 23 consecutive patien...
Presents article is deal with optimization of the fixture for end milling process, the most important objective being the minimization of work piece deformation by changing the layout of fixture elements and the clamping forces. The main objective of this work has been the optimization of the fixtures Work piece deformation subjected to clamping forces for End milling operation. The present ana...
BACKGROUND Optical coherence tomography (OCT) revealed that cells lining proximal convoluted tubules of living donor kidneys (LDKs) procured by laparoscopic procedures were very swollen in response to the brief period of ischemia experienced between the time of arterial vessel clamping and flushing the excised kidney with cold preservation solution. Damage to the tubules as a result of this cel...
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