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Titolo:
Correlation between a mid-ventricular volume segment and global left ventricular volume measured by the conductance catheter
Autore:
Ericsson, AB; Kronander, H; Soderqvist, E; Vaage, J; Brodin, LA;
Indirizzi:
Karolinska Hosp, Dept Thorac Surg, SE-17176 Stockholm, Sweden Karolinska Hosp Stockholm Sweden SE-17176 rg, SE-17176 Stockholm, Sweden Karolinska Inst, Div Med Engn, Stockholm, Sweden Karolinska Inst Stockholm Sweden Inst, Div Med Engn, Stockholm, Sweden Huddinge Univ Hosp, Dept Clin Physiol, Stockholm, Sweden Huddinge Univ Hosp Stockholm Sweden ept Clin Physiol, Stockholm, Sweden
Titolo Testata:
SCANDINAVIAN CARDIOVASCULAR JOURNAL
fascicolo: 2, volume: 35, anno: 2001,
pagine: 129 - 135
SICI:
1401-7431(200103)35:2<129:CBAMVS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CANINE LEFT-VENTRICLE; AUTOMATED BORDER DETECTION; STROKE VOLUME; ECHOCARDIOGRAPHY; ONLINE;
Keywords:
afterload; conductance catheter; ischaemia; left ventricular volume; preload; segmental volume;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Ericsson, AB Karolinska Hosp, Dept Thorac Surg, SE-17176 Stockholm, SwedenKarolinska Hosp Stockholm Sweden SE-17176 Stockholm, Sweden
Citazione:
A.B. Ericsson et al., "Correlation between a mid-ventricular volume segment and global left ventricular volume measured by the conductance catheter", SC CARDIOVA, 35(2), 2001, pp. 129-135

Abstract

Objectives-To investigate whether acute volume changes in single volume segments of the left ventricle can be correlated with global volume changes. If so, changes in global volume might be predicted from changes in segmental volumes. Design-Volume changes were recorded in six pigs in five intraventricular segments, from apex to heart base, using the conductance catheter (at baseline, after 60 min of apical ischaemia, during preload reduction and afterload increase). A computer algorithm was created to calculate the instantaneous absolute difference between the curve shape of global and normalized segmental volume as a percentage of global stroke volume. Results-For a mid-cardiac volume segment constituting 34 (14-39)% [median (range)] of global stroke volume, the mean difference over a cardiac cycle was 4 (1-8)% at baseline. Apical ischaemia resulted in apical dyskinesia, but did not influence the mid-cardiac segment. Conclusions-The volume curve from a segment at mid-cardiac level seems to be a good estimator of the global volume curve, thus giving a foundation for estimation of global volume changes from such a segment.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 16:04:40