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Inicio Revista Española de Anestesiología y Reanimación (English Edition) Validity of estimated aortic pulse wave velocity measured during the 6-min walk ...
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Original article
Available online 16 September 2024
Validity of estimated aortic pulse wave velocity measured during the 6-min walk test to predict anaerobic fitness before major non-cardiac surgery
Validez de la velocidad estimada de onda de pulso aórtica medida durante la prueba de caminata de 6 minutos para predecir la aptitud anaeróbica antes de la cirugía mayor no cardiaca
J. Ripollés-Melchora,b,c,
Corresponding author
ripo542@gmail.com

Corresponding author.
, M.I. Monge Garcíad, A. Ruiz-Escobara,b, E. Sáez-Ruiza,b, B. Algar-Yañeza, A. Abad-Motosa,b,c, A. Abad-Gurumetaa,b,c
a Hospital Universitario Infanta Leonor, Madrid, Spain
b Universidad Complutense de Madrid, Madrid, Spain
c Spanish Perioperative Audit and Research Network (REDGERM), Grupo Español de Rehabilitación Multimodal (GERM), Zaragoza, Spain
d Departamento de Cuidados Intensivos, Hospital Universitario SAS de Jerez, Jerez de la Frontera, Cádiz, Spain
Received 19 December 2023. Accepted 09 April 2024
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Tables (3)
Table 1. Demographic and 6MWT-related characteristics of patients.
Table 2. Linear regression analyses with the AoPWV as the predictor.
Table 3. ROC curve analyses.
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Abstract
Background

This study aimed to assess the efficacy of estimated preoperative aortic pulse wave velocity (AoPWV) to discriminate between low and high 6 min walk test (6MWT) distance in patients awaiting major non-cardiac surgery.

Methods

Prospective observational study in 133 patients undergoing non cardiac surgery. AoPWV and the distance walked during a 6MWT were assessed. Receiver operating characteristic (ROC) curve analysis was used to determine two different AoPWV cut-points for predicting a distance of 427 m in the 6MWT. We also calculated lower and upper AoPWV cut-points (probability ≥ 0.75) for predicting a distance of < 427 m, ≥427 m, and also 563 m in the 6MWT.

Results

The ROC curve analysis for the < 427 m distance revealed an area under the curve (AUC) of 0.68 (95% confidence interval 0.56–0.79) and an AUC of 0.72 (95% confidence interval 0.61–0.83) for >563 m. Patients with AoPWV > 10.97 m/s should be considered high risk, while those with <9.42 m/s can be considered low risk.

Conclusions

AoPWV is a simple, non-invasive, useful clinical tool for identifying and stratifying patients awaiting major non-cardiac surgery. In situations of clinical uncertainty, additional measures should be taken to assess the risk.

Keywords:
Pulse wave velocity
Arterial stiffness
Exercise test
Preoperative care
Resumen
Antecedentes

El objetivo de este estudio fue evaluar la eficacia de la velocidad estimada de onda de pulso (VOP) aórtica preoperatoria para discriminar entre la distancia corta y larga de la prueba de caminata de 6 min (6MWT) en los pacientes en espera de cirugía mayor no cardiaca.

Métodos

Estudio observacional prospectivo en 133 pacientes sometidos a cirugía no cardiaca. Se evaluaron la VOP aórtica y la distancia recorrida durante una 6MWT. Se utilizó el análisis de la curva ROC (Receiver operating characteristic) para determinar dos puntos de corte diferentes de VOP aórtica para predecir una distancia de 427 m en la 6MWT. También calculamos los puntos de corte inferior y superior de la VOP aórtica (probabilidad ≥ 0,75) para predecir una distancia de < 427 m, ≥ 427 m, y de 563 m en 6MWT.

Resultados

El análisis de la curva ROC para la distancia de < 427 m reveló un área bajo la curva (ABC) de 0,68 (valor de intervalo de confianza del 95%: 0,56–0,79) y un ABC de 0,72 (valor de intervalo de confianza del 95%: 0,61–0,83) para > 563 m. Los pacientes con VOP aórtica > 10,97 m/s deberán considerarse de alto riesgo, mientras que aquellos con < 9,42 m/s deberán considerarse de bajo riesgo.

Conclusiones

La VOP aórtica es una herramienta simple, no invasiva y útil para identificar y estratificar a los pacientes en espera de cirugía mayor no cardiaca. En situaciones de incertidumbre clínica, deberán adoptarse medidas adicionales para evaluar el riesgo.

Palabras clave:
Velocidad de onda de pulso
Rigidez arterial
Prueba de ejercicio
Cuidados preoperatorios

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