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Body mass index is associated with low postoperative cardiac output in patients undergoing aortic valve replacement / El índice de masa corporal se asocia a bajo gasto cardiaco postoperatorio de pacientes sometidos a reemplazo valvular aórtico
Avila-Vanzzini, Nydia; Berrios-Barcenas, Enrique; Cossio-Aranda, Jorge; Herrera-Bello, Hector; Rodriguez-Chavez, Laura L; Briseño-Diaz, Nidia M; Gaspar-Hernandez, Jorge.
  • Avila-Vanzzini, Nydia; Instituto National Institute of Cardiology Ignacio Chavez. Department of Out-Patient Care. Mexico City. MX
  • Berrios-Barcenas, Enrique; Instituto National Institute of Cardiology Ignacio Chavez. Department of Out-Patient Care. Mexico City. MX
  • Cossio-Aranda, Jorge; Instituto National Institute of Cardiology Ignacio Chavez. Department of Out-Patient Care. Mexico City. MX
  • Herrera-Bello, Hector; Fundación Clinical Medica Sur. Mexico City. MX
  • Rodriguez-Chavez, Laura L; Instituto National Institute of Cardiology Ignacio Chavez. Department of Out-Patient Care. Mexico City. MX
  • Briseño-Diaz, Nidia M; Autonomous University of Nayarit. MX
  • Gaspar-Hernandez, Jorge; National Institute of Cardiology Ignacio Chavez. Department of General Direction. Mexico City. MX
Arch. cardiol. Méx ; 90(4): 490-497, Oct.-Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1152824
ABSTRACT
Abstract

Background:

Overweight and obesity (O/O) generate lipotoxicity of the cardiac fiber and increase the incidence and progression of aortic valve stenosis. The low cardiac output syndrome (LCOS) is a timing complication after to aortic valve replacement (AVR) surgery.

Objective:

The objective of the study was to investigate if body mass index (BMI) kg/m2 is a risk factor associated with LCOS and mortality in the post-operative period of AVR.

Methods:

A historic cohort study was designed, including patients with severe aortic stenosis (SAS), who were subjected to AVR.

Results:

152 patients were included, 45 (29.6%), with normal weight (NW), 60 were overweight (39.5%), and 47 obese (30.9%). The prevalence of systemic hypertension (HT) was higher in O/O (p < 0.0001). Incidence of LCOS was 44.7%, being more frequent in the O/O groups compared to the NW group, 43.3%, 68.1%, and 22.2%, respectively, (p < 0.05 in overweight and p < 0.0001 in the obese). Assessing the presence or absence of LCOS associated with BMI as a numerical variable, we found that women, HT, BMI, left ventricular mass, and valve size, were associated with LCOS (p < 0.02, p < 0.02, p < 0.001, p < 0.032, and p < 0.045, respectively). Mortality was higher in patients who had LCOS (p < 0.02). Multivariate model showed that BMI was an independent risk factor for LCOS (odds ratio [OR] 1.21 [95% CI 1.08-1.35], p < 0.001).

Conclusion:

BMI is a risk factor associated to LCOS in the post-operative period of AVR in patients with SAS.
RESUMEN
Resumen Antecedentes El sobrepeso y la obesidad (O/O) generan lipotoxicidad de la fibra cardíaca y aumentan la incidencia y progresión de la estenosis de la válvula aórtica. El síndrome de bajo gasto cardíaco (SBGC) es una complicación postquirúrgica de la cirugía de reemplazo de válvula aórtica (RVA).

Objetivo:

Investigar si el índice de masa corporal kg/m2 (IMC) es un factor de riesgo asociado con SBGC y mortalidad en el postoperatorio de RVA.

Métodos:

Se diseñó un estudio de cohorte histórico, que incluyó pacientes con estenosis aórtica importante (EAI), que fueron sometidos a RVA.

Resultados:

Se incluyeron 152 pacientes, 45 (29.6%), con peso normal (N), 60 tenían sobrepeso (39.5%) y 47 obesos (30.9%). La prevalencia de hipertensión sistémica (HT) fue mayor en O/O (p < 0.0001). La incidencia de SBGC fue del 44.7%, siendo más frecuente en los grupos O/O en comparación con el grupo N, 43.3%, 68.1%, 22.2% respectivamente, (p < 0.05 en sobrepeso y p < 0.0001 en obesos). Al evaluar la presencia o ausencia de SBGC asociado con el IMC como una variable numérica, encontramos que las mujeres, HT, IMC, masa ventricular izquierda y tamaño de la válvula, se asociaron con SBGC (p < 0.02, p < 0.02, p < 0.001, p < 0.032, p < 0.045, respectivamente). La mortalidad fue mayor en pacientes con SBGC (p < 0.02). El modelo multivariado mostró que el IMC fue un factor de riesgo independiente asociado a SBGC [OR 1.21 (IC 95% 1.08-1.35), p < 0.001].

Conclusión:

El IMC es un factor de riesgo asociado a SBGC en el postoperatorio de RVA en pacientes con EAI.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Aortic Valve Stenosis / Postoperative Complications / Cardiac Output, Low / Heart Valve Prosthesis Implantation Type of study: Etiology study / Health economic evaluation / Incidence study / Observational study / Prognostic study / Risk factors Limits: Aged / Aged80 / Female / Humans / Male Language: English Journal: Arch. cardiol. Méx Journal subject: Cardiology Year: 2020 Type: Article Affiliation country: Mexico Institution/Affiliation country: Autonomous University of Nayarit/MX / Fundación Clinical Medica Sur/MX / Instituto National Institute of Cardiology Ignacio Chavez/MX

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Full text: Available Index: LILACS (Americas) Main subject: Aortic Valve Stenosis / Postoperative Complications / Cardiac Output, Low / Heart Valve Prosthesis Implantation Type of study: Etiology study / Health economic evaluation / Incidence study / Observational study / Prognostic study / Risk factors Limits: Aged / Aged80 / Female / Humans / Male Language: English Journal: Arch. cardiol. Méx Journal subject: Cardiology Year: 2020 Type: Article Affiliation country: Mexico Institution/Affiliation country: Autonomous University of Nayarit/MX / Fundación Clinical Medica Sur/MX / Instituto National Institute of Cardiology Ignacio Chavez/MX