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The Prevalence and Predictors of Atherosclerotic Coronary Artery Disease in Rheumatic and Non-rheumatic Valvular Heart Disease Patients.
Curēus 2024 March
OBJECTIVES: The paradox of concurrent coronary artery disease (CAD) among patients with rheumatic and non-rheumatic valvular heart disease (RVHD; non-RVHD) is unclear. We aimed to evaluate the impact of the RVHD and non-RVHD on the prevalence of CAD and various risk factors, assess the number of diseased coronaries, clinical profile and the possible predictors of CAD in these patients, which may clarify the paradox and provide an insight for the prevention of CAD.
METHODS: The records of 106 valvular heart disease patients who had undergone valve replacement surgery at the King Faisal Cardiac Centre from January 2014 to October 2019 were evaluated. The clinical data and established risk factors were compared and logistic regression analyses were performed to identify plausible predictors of CAD.
RESULTS: Transthoracic echocardiographic diagnosis of 106 patients confirmed, 43 had RVHD (56.4 ± 8 years), of whom six (13.9%) had CAD with the highest mitral valve regurgitation ( p < 0.01), and 63 had non-RVHD (60.0 ± 12 years). Of these, 31 patients showed the highest CAD (49.2%). Single- and triple-vessel disease was most common in RVHD and non-RVHD patients with concurrent CAD (33.3%; 41.9%, respectively), while non-RVHD patients also had quadruple vessel disease. The mean age of the RVHD and non-RVHD patients with coexisting CAD was significantly higher (66.7 ± 5; 66.7 ± 8 years) than those without CAD (46.1 ± 12.0; 54.7 ± 20, respectively). RVHD patients showed a significantly lower prevalence of diabetes, dyslipidaemia, hypertension, inflammatory cells, hepatorenal function markers, ejection fraction, and regional wall motion abnormality compared to RVHD patients with coexisting CAD (p < 0.01). Bivariate analysis indicated white blood cells, monocytes, neutrophils, gamma-glutamyl-transferase (GGT), bilirubin and blood urea nitrogen (BUN) to be significantly lower in RVHD patients. Predictors of high risk of CAD were BUN and hyperlipidaemia for RVHD and BUN, creatinine and GGT for non-RVHD patients.
CONCLUSIONS: The prevalence of CAD in Saudi RVHD patients was significantly lower than in the Western countries, whereas non-RVHD was higher. The low prevalence may partly be attributed to age, reduced mitral regurgitation, and low frequency of risk and inflammatory factors.
METHODS: The records of 106 valvular heart disease patients who had undergone valve replacement surgery at the King Faisal Cardiac Centre from January 2014 to October 2019 were evaluated. The clinical data and established risk factors were compared and logistic regression analyses were performed to identify plausible predictors of CAD.
RESULTS: Transthoracic echocardiographic diagnosis of 106 patients confirmed, 43 had RVHD (56.4 ± 8 years), of whom six (13.9%) had CAD with the highest mitral valve regurgitation ( p < 0.01), and 63 had non-RVHD (60.0 ± 12 years). Of these, 31 patients showed the highest CAD (49.2%). Single- and triple-vessel disease was most common in RVHD and non-RVHD patients with concurrent CAD (33.3%; 41.9%, respectively), while non-RVHD patients also had quadruple vessel disease. The mean age of the RVHD and non-RVHD patients with coexisting CAD was significantly higher (66.7 ± 5; 66.7 ± 8 years) than those without CAD (46.1 ± 12.0; 54.7 ± 20, respectively). RVHD patients showed a significantly lower prevalence of diabetes, dyslipidaemia, hypertension, inflammatory cells, hepatorenal function markers, ejection fraction, and regional wall motion abnormality compared to RVHD patients with coexisting CAD (p < 0.01). Bivariate analysis indicated white blood cells, monocytes, neutrophils, gamma-glutamyl-transferase (GGT), bilirubin and blood urea nitrogen (BUN) to be significantly lower in RVHD patients. Predictors of high risk of CAD were BUN and hyperlipidaemia for RVHD and BUN, creatinine and GGT for non-RVHD patients.
CONCLUSIONS: The prevalence of CAD in Saudi RVHD patients was significantly lower than in the Western countries, whereas non-RVHD was higher. The low prevalence may partly be attributed to age, reduced mitral regurgitation, and low frequency of risk and inflammatory factors.
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