Oxyhemodynamic repercussions of lateralization of patients up to 72 h after acute coronary syndrome: clinical trial





Acute coronary syndrome; Patient positioning; Cardiography, impedance; Hemodynamics.


Objective: to analyze the impact of dorsal, left and right lateral positions of patients with acute coronary syndrome on oxyhemodynamic variables. Method: Randomized, uncontrolled, single-blinded clinical trial, performed at the Coronary Unit of a private hospital in Niterói, Brazil. The impact of positioning in the supine position, left and right sides on the following variables was analyzed: heart rate, stroke volume, heart index, systolic blood pressure, diastolic blood pressure, mean arterial pressure, cardiac work index, maximum ventricular contraction and O2 consumption, measured using an impedance cardiography device. The randomization of the initial lateral decubitus position was performed with the aid of an electronic spreadsheet. Convenience sample made up of 16 consecutively recruited volunteers. For the comparison of means, analysis of variance (ANOVA) and t-Student test for paired samples were performed, with a pre-established significance level of 5%. Results: Mostly male sample, with an average age of 67 ± 11 years, non-alcoholic and non-smoker. Systolic blood pressure showed a significant decrease in the right lateral and dorsal decubitus (p < 0.01), not reflected in changes in mean arterial pressure. The other variables showed noticeable oscillations in the left lateral decubitus, without statistical significance. Conclusion: The change in position of patients with coronary syndrome, hemodynamically stable, is safe and does not have a deleterious impact on the oxyhemodynamic variables. One must consider the clinical repercussions that occurred in the left lateral decubitus, to support decision-making in clinical practice.

Author Biographies

Lucelia dos Santos Silva, Prefeitura da Cidade do Rio de Janeiro

Enfermeira. Mestre em Ciências Cardiovasculares (Universidade Federal Fluminense),

Monyque Evelyn dos Santos Silva, Universidade Veiga de Almeida

Enfermeira. Mestre em Ciências Cardiovasculares (Universidade Federal Fluminense).

Fernanda Faria Reis, Hospital Estadual Alberto Torres

Enfermeira. Mestre em Ciências Cardiovasculares (Universidade Federal Fluminense).

Viviane de Moraes Sptiz, Instituto Estadual de Diabetes e Endocrinologia Luiz Capriglione

Enfermeira. Mestre em Enfermagem Assistencial (Universidade Federal Fluminense).

Silvia Regina Martins dos Santos, Universidade Veiga de Almeida

Enfermeira. Mestre em Enfermagem Assistencial (Universidade Federal Fluminense).

Aretha Pereira de Oliveira, Instituto Nacional de Câncer

Enfermeira. Mestre em Ciências do Cuidado em Saúde (UFF). Plantonista do Centro de Terapia Intensiva/Unidade Pós-Operatória (CTI/UPO) do Instituto Nacional de Câncer (INCa).

Dalmo Valério Machado de Lima, Univeridade Federal Fluminense

Enfermeiro. Doutor em enfermagem (Universidade de São Paulo). Professor adjunto do Departamento de Enfermagem Médico-Cirúrgica da Universidade Federal Fluminense.


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How to Cite

Silva, L. dos S. ., Silva, M. E. dos S., Reis, F. F. ., Sptiz, V. de M. ., Santos, S. R. M. dos ., Oliveira, A. P. de ., & Lima, D. V. M. de . (2020). Oxyhemodynamic repercussions of lateralization of patients up to 72 h after acute coronary syndrome: clinical trial. Research, Society and Development, 9(9), e401997486. https://doi.org/10.33448/rsd-v9i9.7486



Health Sciences