Author/Editor		Lakić, Nikola
Title		Rane promjene srčane funkcije revaskulariziranoga miokarda kod elektrostimulacije klijetke te pretklijetke i klijetke
Type		monografija
Place		Zagreb
Publisher		Sveučilište u Zagrebu, Medicinski fakultet
Publication year		2000
Volume		str. 45
Language		cro
Abstract		The aim of this study was to compare the hemodynamic effects of sequential atrioventricular pacing and of ventricular pacing in the early postoperative period that is 24 hours after completing surgical revascularization in order to evaluate the practical value of dual-chamber pacing. The studied group consisted of 11 patients (10 male, 1 female), with the average age 58,45 +- 7,37 years. All of them have had a previous history of ishemic heart disease with the intact conduction system. They were operated upon, following the rule of complete revascularisation according to the present practice of Department of Cardiovascular Surgery in Medical Clinical Center Ljubljana. Four hemodynamic parameters have been measured: cardiac output, pulmonary wedge pressure, mean arterial and central venous pressur.e. We have performed the measurements in 6 hours interval postoperatively. In all four periods the measurements were first taken during normal sinus rythm, repetead after 5 minutes of ventricular pacing and after sequential pacing with a five minutes delay between last two measurements. A-v delay during sequential pacing was 150 ms. Dual-chamber pacing has proved to be superiour compared to ventricular pacing with significant rise in cardac output (p < 0,001) and mean arterial pressure (p < 0,05). We have also observed signifacant fall in pulmonary wedge pressure (p < 0,001) and in central venous pressure (p < 0,001) comparing sequential pacing with ventricular. Additional comparison has showed the benefits of dual-chamber pacing comparing cardiac ouput with values gained during sinus rythm (p < 0,05) with the exception of the last measurement. (Abstract truncated at 2000 characters)
Descriptors		MYOCARDIAL REVASCULARIZATION POSTOPERATIVE PERIOD CARDIAC PACING, ARTIFICIAL HEART VENTRICLE HEART ATRIUM CARDIAC OUTPUT PULMONARY WEDGE PRESSURE BLOOD PRESSURE CENTRAL VENOUS PRESSURE