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Titolo:
HEMODYNAMIC MONITORING DURING DOBUTAMINE STRESS ECHOCARDIOGRAPHY WITHIMPEDANCE CARDIOGRAPHY
Autore:
SCHERHAG AW; PFLEGER S; STAEDT U; VOELKER W; HEENE DL;
Indirizzi:
UNIV HEIDELBERG,KLINIKUM MANNHEIM,MED KLIN 1,FAK KLIN MED MANNHEIM D-68135 MANNHEIM GERMANY
Titolo Testata:
Perfusion
fascicolo: 7, volume: 11, anno: 1998,
pagine: 293 - 300
SICI:
0935-0020(1998)11:7<293:HMDDSE>2.0.ZU;2-1
Fonte:
ISI
Lingua:
GER
Soggetto:
CORONARY-ARTERY DISEASE; THORACIC ELECTRICAL BIOIMPEDANCE; CARDIAC-OUTPUT MEASUREMENT; HEALTHY-VOLUNTEERS; DOPPLER ULTRASOUND; STROKE VOLUME; THERMODILUTION; REPRODUCIBILITY; DIPYRIDAMOLE; DIAGNOSIS;
Keywords:
DOBUTAMINE ECHOCARDIOGRAPHY; STRESS ECHOCARDIOGRAPHY; IMPEDANCE CARDIOGRAPHY; ELECTRICAL BIOIMPEDANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
A.W. Scherhag et al., "HEMODYNAMIC MONITORING DURING DOBUTAMINE STRESS ECHOCARDIOGRAPHY WITHIMPEDANCE CARDIOGRAPHY", Perfusion, 11(7), 1998, pp. 293-300

Abstract

Purpose: Dobutamine stress echocardiography (DSE) has become a well established method for the diagnosis of coronary artery disease (CAD). However, little is known about the haemodynamic effects caused by the short-term, high dose dobutamine infusions used in DSE. The aim of ourstudy was therefore to investigate the alterations of stroke volume (SV), cardiac output (CO) and systemic vascular resistance (SVR) in patients (PTS:) during DSE by impedance cardiography (ICG), a noninvasivemethod for continuous monitoring of haemodynamic parameters. Methods:50 PTS who underwent DSE for suspected CAD were monitored by an automated impedance cardiography (ICG) system. After completion of the protocol, PTS were divided into two groups, depending on the positive (pathologic, abnormal) or negative (normal) result of the DSE-test, Mean values of HR, SV, CO and SVR were automatically calculated by the ICG-system for each group, Baseline and peak stress values as well as the relative changes (in % increase from baseline to peak stress) of each parameter mere compared within and between the two groups. Results: There were significant differences (p < 0.01) in the dobutamine-induced increase of SV (45.7 +/- 16.8% vs. 28.8 +/- 9.4%) and CO (112.4 +/- 42.8% vs. 57.4 +/- 12.6%) between PTS with a positive (n = 24) or negative (n = 23) DSE test. No significant differences could he detected in the increase of HR, blood pressure or SVRI, In three PTS no adequate ICG-signals could be recorded.Conclusions: Automated ICG is a feasible method for monitoring haemodynamic parameters during DSE, PTS with a pathologic DSE-test show a significantly smaller increase of SV and CO indicating ischaemic ventricular dysfunction. The results of our study demonstrate that haemodynamic monitoring during DSE by ICG can provideadditional diagnostic information concerning left ventricular function during cardiovascular stress.

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Documento generato il 02/07/20 alle ore 22:32:00