Angiographic quantification of diffuse coronary artery disease: Reliability and prognostic value for bypass operations

Abstract

Diffuse distal coronary disease can be quantified by a structured reading of the coronary angiogram and is a powerful independent predictor of surgical death. Inclusion of a standardized measure of this risk factor would improve statistical models of operative risk.

Summarized Coronary Artery Caliber and Left Ventricle Mass for Scoring of Cardiac Ischemia: Diagnostic and Prognostic Value

“…Knowing the limited prognostic capabilities of the angiographic anginal index, we have created the angiographic outcome index for outcome prediction, and the angiographic prognostic indexes. The prognostic capabilities of different coronary scores were confirmed by several authors (Friesinger et al, 1970;Graham et al, 1999;Korosoglou et al, 2007;Ringqvist 1983). The complex angiographic coronary index, anginal index, and left-ventricular ejection fraction are more informative for predicting CAD outcomes.…”

“…Several different approaches have been proposed to determine the total coronary score: 1) the number of vessels diseased, 2) the number of proximal arterial segments diseased, 3) the proximal arterial segments score (Ringqvist et al, 1983), 4) the Friesinger index (Friesinger et al, 1970), 5) the modified Gensini index (Gensini et al, 1971), 6) the National heart and chest hospital (NHCH) index (Ringqvist et al, 1983), and 7) other methods. The most common problems with these methods were: 1) the interpretational differences in the estimation of the percentage of coronary artery narrowing due to differences in the selection of optimal reference diameter (Brown et al, 1977;Dodge et al, 1988), 2) the difficulties in the accurate assessment of the true hemodynamic value for each narrowing, 3) the difficulties in angiographic quantification of diffuse CAD (Graham et al, 1999;Jalal, 2007), and 4) the differences in techniques of measurements (Kalbfleisch et al, 1990). The hemodynamic value used by some authors is set only by the degree of narrowing.…”

Avaliação de uma escala de risco em pacientes submetidos à cirurgia de revascularização do miocárdio: análise de 400 casos

“…Baseando-se na definição descrita, a partir de 1980 teve início o desenvolvimento de escalas de risco que visavam sobretudo a avaliação da mortalidade operatória 10,[26][27][28][29][30] . Dentre os parâmetros mais comuns para análise do pré-operatório, encontram-se a idade [31][32][33][34][35][36] , o sexo 11,37-40 , a função do VE [41][42][43][44] , as doenças co-mórbidas 45,46 , a angiografia coronária com aterosclerose proximal ou distal 47,48 . Foram incluídas também cirurgias de urgência (relacionada intimamente com a angiografia coronária e a função do VE 49 ) e doenças cirúrgicas valvares que comprometem a função ventricular esquerda (EAO, IMt) 12,50 .…”

Functioning of aortocoronary bypass grafts depending on the lesion and on the anatomical characteristics of coronary arteries

“…Graham и соавт. Они предложили балльную оценку тяже-сти атеросклеротического поражения на основе проведенного ангиографического исследования [10]. Однако и эта попытка не совершенна.…”