Sensitivity of Pressure-Volume Ratios Compared to Ejection Fraction in Assessing Left Ventricular Contraction in Coronary Artery Disease

Year 1982, Volume: 35 Issue: 1, 25 - 40, 31.03.1982

Olcay Sağkan

Abstract

Bu çalışma, koroner arter hastalığı bulunan bireylerde sol ventrikül kontraksiyonunun değerlendirilmesinde sistol sonu basınç-volüm (SSB/SSV) ve sistolik pik basınç-volüm (SPB/SSV) oranlarının duyarlılığını ejeksiyon fraksiyonu (EF) ile karşılaştırmaktadır. Sol ventrikül duvarı normal olan ve yersel hareket bozukluğu bulunan iki ayrı hasta grubu ile normal bireylerden elde edilen veriler istatistiksel olarak analiz edilmiştir. Bulgular, özellikle ventrikül duvarı bozuk olan hastalarda, basınç-volüm oranlarının ejeksiyon fraksiyonuna göre kontraksiyon değişikliklerine daha duyarlı olduğunu göstermektedir. Çalışma, bu oranların klinik gözlem ve takipte daha etkin bir indeks olarak kullanılabileceğini ileri sürmektedir.

Keywords

koroner , duyarlılık , ventrikül

Koroner Arter Hastalarında Sol Ventrikül Kontraksiyonunu Değerlendirmede Basınç-Volüm Oranlarının Ejeksiyon Fraksiyonuna Kıyasla Duyarlılığı

Abstract

This study compares the sensitivity of end-systolic pressure-volume (ESP/ESV) and peak systolic pressure-volume (PSP/ESV) ratios to ejection fraction (EF) in evaluating left ventricular contraction in patients with coronary artery disease. Data from normal subjects and two patient groups—those with normal ventricular wall motion and those with segmental wall motion abnormalities—were analyzed statistically. Findings indicate that pressure-volume ratios are more responsive to contraction changes than EF, especially in patients with wall motion abnormalities. The study suggests that these ratios may serve as more effective indices for clinical evaluation and monitoring.

Keywords

koroner , duyarlılık , ventrikül

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