PMID- 11264545 OWN - NLM STAT- MEDLINE DCOM- 20010521 LR - 20161124 IS - 1071-9164 (Print) IS - 1071-9164 (Linking) VI - 7 IP - 1 DP - 2001 Mar TI - Radiographic measurements of cardiac size as predictors of outcome in patients with dilated cardiomyopathy. PG - 13-20 AB - BACKGROUND: Cardiac dilatation is a predictor of poor outcome in patients with dilated cardiomyopathy. Whereas cardiac chamber dimensions or volumes can be assessed by various noninvasive and invasive techniques, simple chest radiography also may provide a valuable assessment of cardiac size. METHODS AND RESULTS: To determine the relative power of radiographic heart measurements for predicting outcome in dilated cardiomyopathy, we retrospectively studied 88 adult patients with chest radiographs obtained within 35 days of echocardiography. Standard radiographic variables were measured for each patient, and the cardiothoracic (CT) ratio, frontal cardiac area, and volume were calculated. During a mean 4.1-year follow-up, 62 of the 88 (71%) patients died. CT ratio was the best predictor of mortality among the radiographic cardiac measurements. By multivariate analysis, a model including echocardiographic ejection fraction, New York Heart Association (NYHA) functional class, and history of heart failure was highly predictive of survival. When added to this model, CT ratio also was independently associated with mortality, but not radiographic cardiac area or volume. When radiographic variables were each added to CT ratio, they did not add incremental predictive value to the model that included CT ratio alone. Echocardiographic measurement of left ventricular (LV) size, especially when indexed for body size, was independently predictive of outcome, but it did not supersede the predictive power of CT ratio. CONCLUSION: The simply derived radiographic CT ratio is a useful predictor of outcome in patients with dilated cardiomyopathy and compares favorably with other clinical and selected echocardiographic variables. FAU - Ernst, E R AU - Ernst ER AD - Division of Cardiovascular Diseases and Internal Medicine, Section of Biostatistics, Mayo Clinic, Rochester, Minnesota 55905, USA. FAU - Shub, C AU - Shub C FAU - Bailey, K R AU - Bailey KR FAU - Brown, L R AU - Brown LR FAU - Redfield, M M AU - Redfield MM LA - eng PT - Clinical Trial PT - Journal Article PL - United States TA - J Card Fail JT - Journal of cardiac failure JID - 9442138 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Cardiomyopathy, Dilated/*diagnostic imaging/*physiopathology MH - Female MH - Follow-Up Studies MH - Heart/anatomy & histology/*diagnostic imaging MH - Humans MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Prognosis MH - Radiography, Thoracic MH - Stroke Volume/*physiology MH - Surveys and Questionnaires MH - Survival Analysis MH - Ventricular Function, Left/*physiology EDAT- 2001/03/27 10:00 MHDA- 2001/05/25 10:01 CRDT- 2001/03/27 10:00 PHST- 2001/03/27 10:00 [pubmed] PHST- 2001/05/25 10:01 [medline] PHST- 2001/03/27 10:00 [entrez] AID - S1071-9164(01)34362-2 [pii] AID - 10.1054/jcaf.2001.23244 [doi] PST - ppublish SO - J Card Fail. 2001 Mar;7(1):13-20. doi: 10.1054/jcaf.2001.23244.