Minimizing ischemic injury during surgical repair of thoracoabdominal aortic aneurysms (TAAAs) is vital for preventing complications such as paraplegia and acute renal failure. In this report, we describe a new technique for TAAA open repair that aims to minimize visceral organ ischemia times. Unlike typical Crawford extent II TAAA open repair, which begins with aortic clamping and proceeds from the proximal to the distal anastomoses, our method reverses the anastomosis order and minimizes aortic clamping.
Between January 2016 and December 2020, we used this approach in 29 patients undergoing TAAA repair. We present one of these cases, a 29‐year‐old patient with progressive aneurysmal dilatation of a DeBakey type III chronic aortic dissection that extended beyond the aortic bifurcation. Our technique reduced aortic cross‐clamping, left heart bypass, and internal organ and spinal cord ischemia times and appears to be safe and effective.
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РАДІОЕЛЕКТРОНІКА ТА ТЕЛЕКОМУНІКАЦІЇ УДК 621.317.725 Петрищев А. А.
Канд. техн. наук, доцент Запорожского национального технического университета
ИЗМЕРЕНИЕ ВЫХОДНОГО СОПРОТИВЛЕНИЯ ИСТОЧНИКОВ СИГНАЛОВУточнена методика измерений выходного сопротивления источников сигналов для диапа-зона частот до 10 МГц.Ключевые слова: источники сигналов, выходное сопротивление, схема измерений, мето-дика измерений, расчетные формулы.
ВВЕДЕНИЕОдним из главных параметров радиоэлектронных устройств является выходной импеданс Z вых , значе-ние которого определяет условие передачи сигналов между отдельными устройствами.
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