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RESUMEN Introducción: El índice de masa corporal (IMC) en rangos de sobrepeso y obesidad es un factor de riesgo cardiovascular cada vez más frecuente. Su valor pronóstico es discutido en el contexto del infarto agudo de miocardio (IAM). Objetivos: Conocer características basales, estrategias de reperfusión y evolución de los casos incluidos del registro ARGENIAM ST según el IMC. Material y Métodos: Estudio prospectivo de los casos incluidos en el registro. Se excluyeron los que no presentaban datos antropométricos completos. Se definieron 3 grupos; IMC saludable: < 25 kg/m2 (G1), sobrepeso: IMC entre 25 y 29,9 kg/m2 (G2) y obesidad: IMC mayor o igual a 30 kg/m2 (G3). Resultados: Se incluyeron 2925 casos. Los pacientes del G3 tenían menor edad (G1: 63 ± 12, G2: 61 ± 11, G3: 60 ± 11 años, p = 0,0001), más frecuentemente diabetes (G1: 11%, G2: 22%, G3: 28%; p = 0,0001) y dislipidemia (G1: 35%, G2: 40%, G3: 43%; p = 0,01). No encontramos diferencias en el tiempo puerta balón, (medianas de 104 minutos en G1, 110 en G2 y 110 en G3, p = 0,27), la enfermedad de dos o más vasos (G1 38%, G2 34,5% y G3 37%; p = 0,26) y la mortalidad intrahospitalaria (G1 9,7%, G2 7,5% y G3 8,4%; p = 0,22). En el análisis multivariado el Killip y Kimball no A (OR: 20,1; IC95% 13,1-30,8; p < 0,0001), la edad (OR: 1,7; IC95 1,2-2,5; p <0,0001) y la enfermedad de dos o más vasos (OR: 1.5; IC95% 1,03-2,1; p < 0,0001) fueron predictores independientes de mortalidad en la internación. Conclusiones: Los pacientes con sobrepeso y obesidad eran más jóvenes, con más antecedentes de diabetes y dislipidemia. No hubo diferencias significativas en la forma de presentación, tratamiento y complicaciones. En el análisis multivariado el sobrepeso y la obesidad no fueron predictores de mortalidad.
ABSTRACT Background: Body mass index (BMI) in overweight and obesity ranges is an increasingly frequent cardiovascular risk factor. Its prognostic value is debatable in the setting of acute myocardial infarction (AMI). Objectives: The aim of this study is to acknowledge the clinical characteristics, reperfusion strategies outcome of the cases included in the ARGEN-IAM ST according to BMI. Methods: We conducted a prospective study of the cases included in the registry. Patients with incomplete anthropometric data were excluded. Three groups were defined: healthy BMI < 25 kg/m2 (G1), overweight: BMI between 25 and 29.9 kg/m2 (G2) and obesity: BMI ≥30 kg/m2 (G3). Results: 2925 cases were included. Patients in G3 were younger (G1: 63±12, G2: 61±11, G3: 60±11 years, p=0.0001), and had higher incidence of diabetes (G1: 11%, G2: 22%, G3: 28%; p=0.0001) and dyslipidemia (G1: 35%, G2: 40%, G3: 43%; p=0.01). There were no differences in door-to-balloon time (median 104 minutes in G1, 110 in G2 and 110 in G3, p=0.27), two-vessel disease or greater (G1 38%, G2 34.5% and G3 37%; p=0.26) and in-hospital mortality (G1 9.7%, G2 7.5% and G3 8.4%; p=0.22). In multivariate analysis Killip class other than A (OR: 20.1; 95% CI 13.1-30.8; p<0.0001), age (OR: 1.7; 95% CI 1.2-2.5; p<0.0001) and two-vessel disease or greater (OR: 1.5; 95% CI 1.03-2.1; p<0.0001) were independent predictors of in-hospital mortality. Conclusions: Overweight and obese patients were younger, with higher incidence of diabetes and dyslipidemia. There were no significant differences in the type of presentation, treatment and complications. In multivariate analysis, overweight and obesity were not predictors of mortality.
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BACKGROUND: Medical treatment of disabling intermittent claudication or critical limb-threatening ischemia causing rest pain often fails or has partial response. METHODS: In this pilot study, 36 patients (12 females) affected by disabling intermittent claudication or rest pain of the lower extremities were exposed to a daily 3-L water intake for up to 6 weeks. Cutaneous foot temperature, ankle/brachial index, time and distance of claudication, and pain intensity were recorded before and at the completion of the hydration period. RESULTS: Patients with a mean ± SE age of 71 ± 2 years (range, 40-86) had disabling claudication (less than 100 meters) for more than 5 months while 11% reported pain at rest. A 6-week water intake of more than 2,500 mL/24 hr was achieved in 35 of the 36 patients enrolled in the study. Increased water intake was associated with significant improvements in median ankle/brachial index (from 0.60 to 0.76; P < 0.0001) and skin temperature (first dorsal right toe, from 29.95°C to 30.0°C, P < 0.001). Time and distance to report claudication of supervised treadmill exercise improved from 1.25 to 6.25 min (P < 0.0001) and from 100 meters to 535 meters (P < 0.0001), respectively. CONCLUSIONS: This study suggests that hydration attained by daily water consumption of more than 2.5 L has a robust impact on reducing the symptoms of disabling claudication and rest pain caused by peripheral vascular disease.