Risk factors and comorbidities associated with severe aortic stenosis: A case-control study.

BACKGROUND AND OBJECTIVE: Aortic stricture (AS) is one of the most prevalent cardiovascular diseases in individuals 65 years of age or older. A number of epidemiological studies have suggested that certain cardiovascular risk factors (CRFs) and comorbidities could be associated with AS. The aim of this study was to evaluate the association between CRFs and comorbidities and severe symptomatic AS in individuals 65 years of age or older in a Spanish healthcare region. PATIENTS AND METHODS: We conducted an epidemiological case-control study from a single primary care centre. We collected information on exposure to CRFs and comorbidities and determined their association with AS, employing adjusted odds ratios (OR) and multiple logistic regression models. RESULTS: The study included 102 cases (mean age, 77.6 years) and 221 controls (mean age, 75.5 years). The CRFs significantly associated with severe symptomatic AS were hypercholesterolaemia (OR, 2.67; p < .001), tobacco use (OR, 2.60; p < .001), hypertension (OR, 2.41; p = .010) and low HDL cholesterol readings (OR, 2.20; p = .007). The comorbidities significantly associated with severe symptomatic AS were carotid stenosis (OR, 14.5; p = .017), stroke (OR, 4.14; p = .024), chronic renal failure (OR, 3.78; p < .001) and low haemoglobin levels (OR, 0.76; p < .001). CONCLUSIONS: Hypercholesterolaemia, tobacco use, arterial hypertension and low HDL cholesterol levels are the CRFs with a greater risk of severe AS. Furthermore, this disease is associated with a number of comorbidities (chronic renal failure, stroke, carotid stenosis and low haemoglobin levels), which could be markers of AS.

Factores de riesgo y comorbilidades asociadas a la estenosis aórtica grave: estudio de casos y controles / Risk factors and comorbidities associated with severe aortic stenosis: a case-control study

Antecedentes y objetivo La estenosis aórtica (EA) es una de las enfermedades cardiovasculares más prevalentes en sujetos≥65años. Algunos estudios epidemiológicos sugieren que ciertos factores de riesgo cardiovascular (FRCV) y comorbilidades pueden estar asociados con la EA. El objetivo del estudio es evaluar la asociación de FRCV y comorbilidades con la EA grave sintomática en pacientes≥65años en una región sanitaria española. Pacientes y métodos Se realizó un estudio epidemiológico de casos y controles procedentes del mismo centro de atención primaria. Se recogió información sobre la exposición a FRCV y comorbilidades, y se determinó la asociación de ambos con la EA con odds ratio ajustadas (ORa), mediante modelos de regresión logística múltiple. Resultados Se incluyeron un total de 102 casos (edad media=77,6 años) y 221 controles (edad media=75,5 años). Los FRCV significativamente asociados con la EA grave sintomática fueron hipercolesterolemia (ORa=2,67; p<0,001), tabaquismo (ORa=2,60; p<0,001), hipertensión (ORa=2,41; p=0,010) y cifras bajas de colesterol-HDL (ORa=2,20; p=0,007). Las comorbilidades significativamente asociadas con la EA grave sintomática fueron estenosis carotídea (ORa=14,5; p=0,017), accidente vascular cerebral (ORa=4,14; p=0,024), insuficiencia renal crónica (ORa=3,78; p<0,001) y bajos niveles de hemoglobina (ORa=0,76; p<0,001). Conclusiones La hipercolesterolemia, el tabaquismo, la hipertensión arterial y los niveles bajos de colesterol-HDL son los FRCV que comportan mayor riesgo de EA grave. Asimismo, esta enfermedad se asocia con algunas comorbilidades (insuficiencia renal crónica, accidente vascular cerebral, estenosis carotídea y niveles de hemoglobina más bajos) que podrían ser marcadores de E (AU)

Background and objective Aortic stricture (AS) is one of the most prevalent cardiovascular diseases in individuals 65 years of age or older. A number of epidemiological studies have suggested that certain cardiovascular risk factors (CRFs) and comorbidities could be associated with AS. The aim of this study was to evaluate the association between CRFs and comorbidities and severe symptomatic AS in individuals 65 years of age or older in a Spanish healthcare region. Patients and methods We conducted an epidemiological case-control study from a single primary care centre. We collected information on exposure to CRFs and comorbidities and determined their association with AS, employing adjusted odds ratios (OR) and multiple logistic regression models. Results The study included 102 cases (mean age, 77.6 years) and 221 controls (mean age, 75.5 years). The CRFs significantly associated with severe symptomatic AS were hypercholesterolaemia (OR, 2.67; p<.001), tobacco use (OR, 2.60; p<.001), hypertension (OR, 2.41; p=.010) and low HDL cholesterol readings (OR, 2.20; p=.007). The comorbidities significantly associated with severe symptomatic AS were carotid stenosis (OR, 14.5; p=.017), stroke (OR, 4.14; p=.024), chronic renal failure (OR, 3.78; p<.001) and low haemoglobin levels (OR, 0.76; p<.001). Conclusions Hypercholesterolaemia, tobacco use, arterial hypertension and low HDL cholesterol levels are the CRFs with a greater risk of severe AS. Furthermore, this disease is associated with a number of comorbidities (chronic renal failure, stroke, carotid stenosis and low haemoglobin levels), which could be markers of AS (AU)

Risk factors and comorbidities associated with severe aortic stenosis: a case-control study. / Factores de riesgo y comorbilidades asociadas a la estenosis aórtica grave: estudio de casos y controles.

BACKGROUND AND OBJECTIVE: Aortic stricture (AS) is one of the most prevalent cardiovascular diseases in individuals 65 years of age or older. A number of epidemiological studies have suggested that certain cardiovascular risk factors (CRFs) and comorbidities could be associated with AS. The aim of this study was to evaluate the association between CRFs and comorbidities and severe symptomatic AS in individuals 65 years of age or older in a Spanish healthcare region. PATIENTS AND METHODS: We conducted an epidemiological case-control study from a single primary care centre. We collected information on exposure to CRFs and comorbidities and determined their association with AS, employing adjusted odds ratios (OR) and multiple logistic regression models. RESULTS: The study included 102 cases (mean age, 77.6 years) and 221 controls (mean age, 75.5 years). The CRFs significantly associated with severe symptomatic AS were hypercholesterolaemia (OR, 2.67; p<.001), tobacco use (OR, 2.60; p<.001), hypertension (OR, 2.41; p=.010) and low HDL cholesterol readings (OR, 2.20; p=.007). The comorbidities significantly associated with severe symptomatic AS were carotid stenosis (OR, 14.5; p=.017), stroke (OR, 4.14; p=.024), chronic renal failure (OR, 3.78; p<.001) and low haemoglobin levels (OR, 0.76; p<.001). CONCLUSIONS: Hypercholesterolaemia, tobacco use, arterial hypertension and low HDL cholesterol levels are the CRFs with a greater risk of severe AS. Furthermore, this disease is associated with a number of comorbidities (chronic renal failure, stroke, carotid stenosis and low haemoglobin levels), which could be markers of AS.