Cardiac Output and Arterial Blood-Gas Tension During Laparoscopy

Hemodynamic consequences of high- and low-pressure capnoperitoneum during laparoscopic cholecystectomy

“…The degree to which cardiac output is reduced depends on a number of variables including volemic status [2] insufflating gas [4,11], patient position [20], and intraabdominal pressure [2,5,7,8,16]. In this study the insufflating gas was the same, and the patients in both groups had identical preoperative care.…”

“…The hemodynamic effects of insufflation were originally investigated in gynecologic patients [8][9][10][11]14], and included elevation of heart rate, arterial blood pressure, central venous pressure and peripheral vascular resistance, and depression of stroke volume and cardiac output. Such changes were generally well tolerated and were more pronounced in patients with a higher intraabdominal pressure.…”

Of Changes in Abdominal Pressure During Laparoscopic Cholecystectomy on Respiratory Mechanics, Hemodynamics and Metabolism Effects

“…Odeberg ve ark. (15) , PP sırasında kardiyak indeksin sabit olduğunu, Kelmen ve ark. (16) ise arttığını, Joris ve ark.…”

“…Kelman ve ark. (20) , İAB arttıkça SVB'ın da arttığını savunmuşlardır. İAB artışı, kanın abdominal organlardan venöz rezarvuarlara yö-nelmesine neden olur.…”

Impact of dopamine and endothelin-1 antagonism on portal venous blood flow during laparoscopic surgery

“…Peritoneal insufflation with carbon dioxide (CO2) is commonly applied to establish laparoscopy, providing adequate visual and operative conditions, but also leading to increased intraabdominal pressure. Alterations in cardiovascular physiology, pulmonary function, blood gas, and acid balance resulting from pneumoperitoneal conditions have been well described [2,3,18,20,23,35]. Furthermore, macro-and microcirculatoric changes in the splanchnic area have been determined during the installation of a CO2 pneumoperitoneuni [8,[32][33][34].…”