title: Simultaneous hemodynamic and echocardiographic changes during abdominal gas insufflation.
abstract: The purpose of this study was to investigate cardiovascular changes during CO2 pneumoperitoneum. We performed simultaneous hemodynamic recordings and transesophageal echocardiographic measurements of possible alterations in cardiac dimensions. Seven patients scheduled for elective laparoscopic cholecystectomy were investigated. With an intraabdominal pressure of 15 mm Hg, mean arterial pressure increased from 75 to 93 mm Hg (p < 0.05). Despite the increase in pulmonary capillary wedge pressure (PCWP) from 10 (9.5-12) to 17 (16-19.9) mm Hg (p < 0.05), left ventricular end-diastolic area index (EDAI) did not change significantly. The cardiac index remained unchanged. Thus abdominal gas insufflation substantially alters the PCWP/EDAI relation. During pneumoperitoneum, left ventricular filling pressure, estimated by PCWP, cannot be used as an indicator of left ventricular dilation.
authors.affiliation: Department of Anesthesiology and Research Forum, Ullevaal University Hospital, Oslo, Norway.
authors.forename: K
authors.initials: K
authors.lastname: Myre
authors.forename: T
authors.initials: T
authors.lastname: Buanes
authors.forename: G
authors.initials: G
authors.lastname: Smith
authors.forename: O
authors.initials: O
authors.lastname: Stokland
mesh_terms: D000328:Adult; D000368:Aged; D001794:Blood Pressure; D002245:Carbon Dioxide / Q000008:administration & dosage / Q000097:blood; D002302:Cardiac Output; D017081:Cholecystectomy, Laparoscopic; D017548:Echocardiography, Transesophageal; D005260:Female; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011028:Pneumoperitoneum, Artificial; D011669:Pulmonary Wedge Pressure; D014655:Vascular Resistance
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen