BACKGROUND: This study aimed by means of transesophageal echocardiography, to evaluate hemodynamic changes induced by @entity516 in @entity1 with normal cardiac performance. METHODS: In this study, 11 ASA I-II @entity1 (mean age, 39 years) with normal cardiac performance undergoing laparoscopic cholecystectomy were evaluated. A 5-MHz transesophageal biplane phased-array transducer connected to an echocardiographer was inserted after induction of anesthesia. Data were collected at three different times: before insufflation (T1), 10 min after insufflation (T2), and 5 min after desufflation (T3). At these same times, heart rate, systolic blood pressure, diastolic blood pressure, end-tidal @entity544 ( @entity515 ), and peak airway pressure were recorded. Statistical analysis was performed using one-way and two-way analysis of variance (ANOVA). A p value less than 0.05 was considered significant. RESULTS: End-systolic and end-diastolic diameters of the left ventricle, contractility, and performance parameters did not change significantly. Conversely, at insufflation, color Doppler area of the mitral backflow increased significantly (p < 0.05) when already present or showed up abruptly (T1: 0.22 +/- 0.28 cm(2); T2: 1.28 +/- 1.02 cm(2); T3: 0.49 +/- 0.53 cm(2)). CONCLUSIONS: Such an event is not interpreted as a @entity339 . It is possibly the result of a "contrast effect" caused by the absorption of @entity515 microbubbles in the blood.

Transesophageal echocardiographic assessment of hemodynamic function during laparoscopic cholecystectomy in healthy XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity339 :: ('MESH:D008944', 'Disease') :: ['mitral insufficiency'] @entity515 :: ('CHEBI:29334', 'Chemical') :: ['CO(2)'] @entity544 :: ('MESH:D002245', 'Chemical') :: ['carbon dioxide'] @entity516 :: ('MESH:D011027', 'Disease') :: ['pneumoperitoneum']
@entity1 :: (9606,Species) :: ['patients']
