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Randomized Controlled Trial Multicenter Study
Spontaneous recovery of neuromuscular blockade is an independent risk factor for postoperative pulmonary complications after abdominal surgery: A secondary analysis.
- Ignacio Garutti, Carlos L Errando, Guido Mazzinari, José M Bellón, Oscar Díaz-Cambronero, Carlos Ferrando, and iPROVE network.
- From the Department of Anaesthesiology, Hospital General Universitario Gregorio Marañón, Madrid (IG), Department of Anaesthesiology, Consorcio Hospital General Universitario de Valencia (CLE), Department of Anaesthesiology, Hospital de Manises, Valencia (GM), Department of Biostatistics, Hospital General Universitario Gregorio Marañón, Madrid (JMB), Department of Anaesthesiology, Hospital Universitari i Politécnic La Fe (OD-C), Perioperative Medicine Research Group Instituto de Investigación Sanitaria La Fe (IIS laFe), Valencia (GM, OD-C) and Pharmacology and Toxicology Department, School of Medicine, Complutense University of Madrid, Madrid, Spain (IG) the Department of Anaesthesiology and Critical Care, Hospital Clinic i Provincial, Barcelona, Spain (CF), CIBER de Enfermedades Respiratorias. Instituto de Salud Carlos III, Madrid, Spain (CF).
- Eur J Anaesthesiol. 2020 Mar 1; 37 (3): 203-211.
BackgroundIn intermediate-to-high-risk patients, major abdominal surgery is associated with a high incidence of postoperative complications, mainly pulmonary. Neuromuscular blocking drugs have been suggested as a contributing factor, but this remains unproven.ObjectiveTo define the relationship of neuromuscular blockade management (reversal) with postoperative pulmonary complications (PPCs).DesignThe individualised PeRioperative Open-lung approach Versus standard protectivE ventilation in abdominal surgery study was a prospective, multicentre, four-arm, randomised controlled trial. This is a secondary analysis of the data.SettingTwenty-one teaching hospitals in Spain. The study was conducted between 2 January 2015, and 18 May 2016.PatientsAge more than 18 years with an intermediate-to-high risk for PPCs, scheduled for major abdominal surgery lasting more than 2 h. Exclusion criteria included pregnancy or breastfeeding, and moderate-to-severe organ diseases.InterventionsThe mode of reversal of neuromuscular blockade determined two patient groups: pharmacological reversal versus spontaneous recovery.Main Outcome MeasuresThe primary outcome was a composite of PPCs during the first 30 postoperative days. The association between categorical variables and PPCs within 30 days was studied. Univariate and multivariable logistic regression modelling and propensity score analyses were performed.ResultsFrom the 923 patients included, 596 (64.6%) presented with PPCs within 30 days after surgery. Patients who developed these complications were older with a higher BMI, a lower pre-operative SpO2, a higher ASA physical status score and a higher incidence of arterial hypertension, diabetes mellitus or chronic obstructive pulmonary disease. Pharmacological neuromuscular blockade reversal was associated with a lower incidence of PPCs (odds ratio 0.62, 95% CI 0.47 to 0.82).ConclusionSpontaneous recovery of neuromuscular blockade was an independent risk factor for PPCs in patients with intermediate-to-high risk, undergoing abdominal surgery. We suggest this factor should be included in future studies on PPCs.Trial Registrationclinicaltrials.gov identifier: NCT02158923.
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