Effects of hemodialysis on left ventricular function. Echocardiographic and polycardiographic study. The effects of hemodialysis on left ventricular function were studied by externally recorded left ventricular systolic time intervals and echocardiography, The study was performed on a group of 10 patients with chronic renal failure. Echocardiography showed a significant decrease of left ventricular end-diastolic (p < 0.001) and end-systolic (p < 0.01) diameter; an increase ot maximal velocity of posterior wall (Vmpp; p < 0.001) and mean velocity of circumferential shortening (VCFm; p < 0.001). A decrease of left ventricular ejection time (LVETc; p < 0.001) and an increase of PEP/LVET ratio (p < 0.001) were also observed. Small changes in heart rate were insignificant. The reduction of stroke volume and cardiac output after hemodialysis may be attributed to the decrease in preload. An improvement ot the contractile state of left ventricle is also documented by the increase of VCFm and Vmpp.
Dieci pazienti nefropatici cronici in trattamento dialitico trisettimanale sono stati studiati con poligrafia ed ecocardiografia M-mode per valutare gli effetti dell’emodialisi sulla funzione ventricolare sinistra. All’esame ecocardiografico si è osservata una riduzione significativa del diametro diastolico (p < 0.001) e sistolico (p < 0.01) del ventricolo sinistro; un aumento della velocità max della parete posteriore (Vmpp; p < 0.001) e della velocità media di accorciamento circonferenziale (VCFm; p < 0.001). All’esame poligrafico si è osservata una riduzione del tempo di eiezione (LVETc; p < 0,001) e un aumento del rapporto PEP/LVET (p < 0.001). La frequenza cardiaca non ha subito modificazioni significative. La dialisi dunque, diminuendo il volume plasmatico, riduce il precarico, la gittata e la portata cardiaca. Un incremento dello stato contrattile è altresì messo in evidenza dall’aumento della VCFm e della Vmpp.
Autore, C., Fragola, P.v., Russo, G.e., Picelli, A., Maccari, A.m., Cannata, G. (1983). Effetti dell'emodialisi sulla funzione ventricolare sinistra. Studio ecocardiografico e policardiografico. PROGRESSO MEDICO, 39(12), 793-796.
Effetti dell'emodialisi sulla funzione ventricolare sinistra. Studio ecocardiografico e policardiografico
Fragola, Pietro Vincenzo;Maccari, Anna Maria;Cannata, Giuseppe
1983-01-01
Abstract
Effects of hemodialysis on left ventricular function. Echocardiographic and polycardiographic study. The effects of hemodialysis on left ventricular function were studied by externally recorded left ventricular systolic time intervals and echocardiography, The study was performed on a group of 10 patients with chronic renal failure. Echocardiography showed a significant decrease of left ventricular end-diastolic (p < 0.001) and end-systolic (p < 0.01) diameter; an increase ot maximal velocity of posterior wall (Vmpp; p < 0.001) and mean velocity of circumferential shortening (VCFm; p < 0.001). A decrease of left ventricular ejection time (LVETc; p < 0.001) and an increase of PEP/LVET ratio (p < 0.001) were also observed. Small changes in heart rate were insignificant. The reduction of stroke volume and cardiac output after hemodialysis may be attributed to the decrease in preload. An improvement ot the contractile state of left ventricle is also documented by the increase of VCFm and Vmpp.File | Dimensione | Formato | |
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Autore et al Effetti dell'emodialisi Il Progresso Medico 1983.pdf
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