A number of studies have reported association between RAS and CAD. However, there is no much data available to comment about the incidence RAS in patients with normal coronaries with Co-morbidities. In this study we have analysed 1309 patients of suspected CAD for incidence and predictors of RAS in Normal Coronaries with Co-morbidities. Methods: A total of 1309 patients with suspected Coronary artery disease underwent coronary angiogram and renal angiograms in the same sitting. Patients having

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... ore than 50% RAS were considered significant. Data from the patients with significant RAS but normal coronaries was analysed for association with co-morbidities. Results: Out of total 1309 patients, 74 patients had significant RAS. Among 74 patients with RAS 16(22%) had normal coronaries. 6 (37%) of them were females, 10 (62%) were males, 11 (68.7%) patients were < 60 years old, 5 (31.2%) were >60 years old, 4 (25%) were Diabetics, 6(37%) were Hypertensive's, 10(62%) were Tobacco users and 6 (37%) had Dyslipidemia. Conclusion: This study indicates that significant number of patients (22%), irrespective of co-morbidities can have RAS with Normal Coronaries.