The effects of cataract surgery on autonomic heart rate control: a prospective cross-sectional and analytical study

Authors

  • Ricardo H. Aoki Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica
  • Italla Pinheiro Bezerra Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica https://orcid.org/0000-0002-8604-587X
  • Alvaro Dantas de Almeida-Júnior Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica
  • Renata Thaís de A. Barbosa Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica https://orcid.org/0000-0003-0529-4178
  • Vitor E. Valenti Universidade Estadual Paulista, Faculdade de Filosofia e Ciencias, Centro de Estudos do Sistema Nervoso Autonomo https://orcid.org/0000-0001-7477-3805
  • Fernando R. Oliveira Universidade de Sao Paulo, Faculdade de Saude Publica, Programa de Pos-Graduacao em Epidemiologia https://orcid.org/0000-0002-6776-2072
  • Adriano L. Roque Universidade Federal de Sao Paulo, Escola Paulista de Medicina, Programa de Pos-Graduacao em Cardiologia
  • Hugo Macedo Ferraz e Souza Júnior Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica
  • David M. Garner Oxford Brookes University, School of Health and Life Sciences, Department of Biological and Medical Sciences https://orcid.org/0000-0002-8114-9055
  • Rodrigo D. Raimundo Oxford Brookes University, School of Health and Life Sciences, Department of Biological and Medical Sciences, Cardiorespiratory Research Group https://orcid.org/0000-0002-3043-0728
  • Luiz Carlos de Abreu Centro Universitario Saude ABC, Laboratorio de Delineamento de Estudos e Escrita Cientifica https://orcid.org/0000-0002-7618-2109

DOI:

https://doi.org/10.6061/clinics/2019/e809

Keywords:

Autonomic Nervous System, Heart Rate Variability, Cardiovascular System, Cataract, Ophthalmologic Surgical Procedures

Abstract

OBJECTIVES: We aimed to evaluate the effects of cataract surgery on cardiac autonomic modulation. METHODS: A cross-sectional and analytical study was conducted at the Hospital Maria Braido in the city of Sa˜o Caetano do Sul, Sa˜o Paulo, between 2015 and 2016. We investigated 19 patients of both sexes who were all over 50 years old; all patients had a diagnosis of senile or bilateral cataracts and were recommended to undergo implantation of the intraocular lens. Heart rate variability (HRV) was evaluated before, during and after cataract surgery. RESULTS: There were no significant changes in the time and geometric domains of HRV before, during or after surgery. The high-frequency (HF) band in normalized units (nu) on the spectral analysis significantly increased (p=0.02, Cohen’s d=0.9, large effect size). However, the low-frequency (LF) band in nu significantly decreased during surgery (p=0.02, Cohen’s d=0.9, large effect size). CONCLUSION: Throughout the intraocular lens implantation cataract surgery, there was an increase in parasympathetic modulation and a decrease in the sympathetic component of the heart rate (HR). We propose that this result is attributable to the supine position of the patients during surgery and the trigeminal reflex.

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Published

2019-05-24

Issue

Section

Original Articles

How to Cite

The effects of cataract surgery on autonomic heart rate control: a prospective cross-sectional and analytical study. (2019). Clinics, 74, e809. https://doi.org/10.6061/clinics/2019/e809