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Brazilian Journal of Medical and Biological Research

On-line version ISSN 1414-431X

Braz J Med Biol Res vol.51 no.2 Ribeirão Preto  2018  Epub Dec 18, 2017

https://doi.org/10.1590/1414-431x20176825 

Research Articles

[RETRACTED ARTICLE] Comparison of Arndt-endobronchial blocker plus laryngeal mask airway with left-sided double-lumen endobronchial tube in one-lung ventilation in thoracic surgery in the morbidly obese

Z.J. Zhang1 

M.L. Zheng1 

Y. Nie1 

Z.Q. Niu1 

1Department of Anesthesiology, the Cangzhou Central Hospital, Cangzhou, Hebei, China


ABSTRACT

This study aimed to evaluate the feasibility and performance of Arndt-endobronchial blocker (Arndt) combined with laryngeal mask airway (LMA) compared with left-sided double-lumen endobronchial tube (L-DLT) in morbidly obese patients in one-lung ventilation (OLV). In a prospective, randomized double-blind controlled clinical trial, 80 morbidly obese patients (ASA I-III, aged 20–70) undergoing general anesthesia for elective thoracic surgeries were randomly allocated into groups Arndt (n=40) and L-DLT (n=40). In group Arndt, a LMA™ Proseal was placed followed by an Arndt-endobronchial blocker. In group L-DLT, patients were intubated with a left-sided double-lumen endotracheal tube. Primary endpoints were the airway establishment, ease of insertion, oxygenation, lung collapse and surgical field exposure. Results showed similar ease of airway establishment and tube/device insertion between the two groups. Oxygen arterial pressure (PaO2) of patients in the Arndt group was significantly higher than L-DLT (154±46 vs 105±52 mmHg; P<0.05). Quality of lung collapse and surgical field exposure in the Arndt group was significantly better than L-DLT (effective rate 100 vs 90%; P<0.05). Duration of surgery and anesthesia were significantly shorter in the Arndt group (2.4±1.7 vs 3.1±1.8 and 2.8±1.9 vs 3.8±1.8 h, respectively; P<0.05). Incidence of hoarseness of voice and incidence and severity of throat pain at the post-anesthesia care unit and 12, 24, 48, and 72 h after surgery were significantly lower in the Arndt group (P<0.05). Findings suggested that Arndt-endobronchial blocker combined with LMA can serve as a promising alternative for morbidly obese patients in OLV in thoracic surgery.

Key words: Laryngeal mask airway; Arndt-endobronchial blocker; L-DLT; One-lung ventilation; Thoracic surgery; Morbidly obese

Retraction for: Braz J Med Biol Res | doi: 10.1590/1414-431X20176825 | PMID: 29267506

The Brazilian Journal of Medical and Biological Research was contacted by one specialist questioning the validity of this study. [Click here to view Specialist message]

The authors were contacted on May 7 and 22, 2018 to answer the questions one-by-one. As of June 29, 2018, we did not receive an answer from the authors.

The Editors decided to Retract the article: “Comparison of Arndt-endobronchial blocker plus laryngeal mask airway with left-sided double-lumen endobronchial tube in one-lung ventilation in thoracic surgery in the morbidly obese” that was published in volume 51 no. 2 (2018) (Epub Dec 18, 2017) in the Brazilian Journal of Medical and Biological Research <10.1590/1414-431X20176825> PMID: 29267506.

The Brazilian Journal of Medical and Biological Research informed all authors before the publication of this Retraction.

Received: June 23, 2017; Accepted: October 16, 2017

Correspondence: Z.Q. Niu: <niu_zhiqiang@21cn.com>

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.