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Does Homeostasis Model Assessment of Insulin Resistance have a predictive value for post-coronary artery bypass grafting surgery outcomes? / O Modelo de Avaliação da Homeostase da Resistência à Insulina tem valor preditivo para os resultados após a cirurgia de revascularização miocárdica?
Aydin, Ebuzer; Ozkokeli, Mehmet.
  • Aydin, Ebuzer; Research Hospital Istanbul. Kartal Kosuyolu Training. Istanbul. TR
  • Ozkokeli, Mehmet; Research Hospital Istanbul. Kartal Kosuyolu Training. Istanbul. TR
Rev. bras. cir. cardiovasc ; 29(3): 360-366, Jul-Sep/2014. tab
Article in English | LILACS | ID: lil-727161
ABSTRACT

Objective:

This study aims to investigate whether pre-operative Homeostasis Model Assessment Insulin Resistance (HOMA-IR) value is a predictor in non-diabetic coronary artery bypass grafting patients in combination with hemoglobin A1c, fasting blood glucose and insulin levels.

Methods:

Eighty one patients who were admitted to Cardiovascular Surgery Clinic at our hospital between August 2012 and January 2013 with a coronary artery bypass grafting indication were included. Patients were non-diabetic with <6.3% hemoglobin A1c and were divided into two groups including treatment and control groups according to normal insulin resistance (HOMA-IR<2.5, Group A; n=41) and high insulin resistance (HOMA-IR>2.5, Group B; n=40), respectively. Pre-operative fasting blood glucose and insulin were measured and serum chemistry tests were performed. The Homeostasis Model Assessment Insulin Resistance values were calculated. Statistical analysis was performed.

Results:

There was a statistically significant difference in fasting blood glucose and HOMA-IR values between the groups. Cross-clamping time, and cardiopulmonary bypass time were longer in Group B, compared to Group A (P=0.043 and P=0.031, respectively). Logistic regression analysis revealed that hemoglobin A1c was not a reliable determinant factor alone for pre-operative glucometabolic evaluation of non-diabetic patients. The risk factors of fasting blood glucose and cardiopulmonary bypass time were more associated with high Homeostasis Model Assessment Insulin Resistance levels.

Conclusion:

Our study results suggest that preoperative screening of non-diabetic patients with Homeostasis Model Assessment Insulin Resistance may improve both follow-up visit schedule and short-term outcomes, and may be useful in risk stratification of the high-risk population for impending health problems. .
RESUMO

Objetivo:

Este estudo tem como objetivo investigar se a resistência de valor do Modelo de Avaliação da Homeostase da Resistência à Insulina (Homeostasis Model Assessment Insulin Resistance - HOMA-IR) no pré-operatório é um preditor de revascularização do miocárdio para pacientes não diabéticos em combinação com a hemoglobina A1c, glicemia em jejum e insulina.

Métodos:

Oitenta e um pacientes que foram internados no serviço de Cirurgia Cardiovascular em nosso hospital entre agosto de 2012 e janeiro de 2013, com indicação para cirurgia de revascularização do miocárdio indicação foram incluídos. Os pacientes não diabéticos com <6,3% de hemoglobina A1c foram divididos em dois grupos, incluindo os grupos de tratamento e controle de acordo com a resistência à insulina normal (HOMA-IR <2,5, Grupo A, n=41) e alta resistência à insulina (HOMA-IR> 2,5, Grupo B, n=40), respectivamente. Glicemia de jejum pré-operatório e insulina foram medidas e testes de química do soro foram realizados. Os valores de HOMA-IR foram calculados. A análise estatística foi realizada.

Resultados:

Houve diferença estatisticamente significativa em jejum de valores de glicose no sangue e HOMA-IR entre os grupos. Tempo de pinçamento e tempo de circulação extracorpórea foi maior no grupo B, em relação ao Grupo A (P=0,043 e P=0,031, respectivamente). A análise de regressão logística revelou que hemoglobina A1c não foi um fator determinante para a avaliação confiável sozinho glicometabólico pré-operatória de pacientes não diabéticos. Os fatores de risco de glicemia de jejum e tempo de circulação extracorpórea foram associados com altos níveis do HOMA-IR.

Conclusão:

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Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Insulin Resistance / Coronary Artery Bypass / Risk Assessment / Homeostasis Type of study: Etiology study / Prognostic study / Risk factors Limits: Adult / Aged / Aged80 / Female / Humans / Male Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2014 Type: Article Affiliation country: Turkey Institution/Affiliation country: Research Hospital Istanbul/TR

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Full text: Available Index: LILACS (Americas) Main subject: Insulin Resistance / Coronary Artery Bypass / Risk Assessment / Homeostasis Type of study: Etiology study / Prognostic study / Risk factors Limits: Adult / Aged / Aged80 / Female / Humans / Male Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2014 Type: Article Affiliation country: Turkey Institution/Affiliation country: Research Hospital Istanbul/TR