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Ultrasound echo gastrointestinal tract gut

Y John Gu, Thom L de Kroon, Jan M Elstrodt, Gerhard Rakhorst
Cardiopulmonary bypass (CPB) is known to impair the integrity of the gastrointestinal tract. However, little is known about the movement behavior of the gastrointestinal tract during CPB. This study was aimed to assess the gastrointestinal motility with sonomicrometry, a distance measurement using ultrasound, in a porcine model of CPB. Twelve pigs weighing 70-112 kg were having a standard hypothermic CPB for 120 min either with the nonpulsatile flow (n = 6) or the pulsatile flow (n = 6). Before CPB, piezoelectric echo crystals were placed either along the longitudinal or the circular axis of the pylorus...
July 2006: Artificial Organs
Giuseppe Fiore, Nicola Brienza, Pasquale Cicala, Pasquale Tunzi, Nicola Marraudino, Luigi de Luca Tupputi Schinosa, Tommaso Fiore
BACKGROUND: Patients undergoing cardiac surgery are at increased risk of gut hypoperfusion. During off-pump surgery, hemodynamic derangements at the time of heart displacement could reduce splanchnic perfusion, outweighing the beneficial effects of avoiding cardiopulmonary bypass. The purpose of this study is to assess, prospectively, blood flow modifications in the superior mesenteric artery during off-pump surgery using transesophageal echocardiography. METHODS: In 19 patients undergoing multivessel elective off-pump coronary revascularization, systemic hemodynamics and superior mesenteric flow were assessed...
July 2006: Annals of Thoracic Surgery
P Frank, V Menges, M Klein
Gastro-intestinal mural infiltration can be diagnosed by ultra sound from a typical pattern of echos. This consists of a strong central echo surrounded by a circular structureless margin which indicates thickening of the gut wall. In the present paper, the significance of this appearance is discussed with particular reference to the differential diagnosis. The phenomenon is an important diagnostic criterion where there is suspicion of the presence of malignancy as a result of radiological or endoscopic examination...
July 1978: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
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