Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study

Abstract Background The laryngeal mask airway (LMA) is occasionally used in internal fixation of rib fractures. We evaluated the feasibility of general anesthesia with an LMA associated to a thoracic paravertebral block (TPB) and/or an erector spinae plane block (ESPB) for internal fixation of rib f...

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Main Authors: Jun Cao, Xiaoyun Gao, Xiaoli Zhang, Jing Li, Junfeng Zhang
Format: Article
Language:English
Published: BMC 2020-07-01
Series:BMC Anesthesiology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12871-020-01082-y
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author Jun Cao
Xiaoyun Gao
Xiaoli Zhang
Jing Li
Junfeng Zhang
author_facet Jun Cao
Xiaoyun Gao
Xiaoli Zhang
Jing Li
Junfeng Zhang
author_sort Jun Cao
collection DOAJ
description Abstract Background The laryngeal mask airway (LMA) is occasionally used in internal fixation of rib fractures. We evaluated the feasibility of general anesthesia with an LMA associated to a thoracic paravertebral block (TPB) and/or an erector spinae plane block (ESPB) for internal fixation of rib fractures. Methods Twenty patients undergoing unilateral rib fracture fixation surgery were enrolled. Each patient received general anesthesia with an LMA combined with TPB and/or ESPB, which provided a successful blocking effect. All patients received postoperative continuous analgesia (PCA) with 500 mg of tramadol and 16 mg of lornoxicam, and intravenous injection of 50 mg of flurbiprofen twice a day. Our primary outcomes including the partial pressure of arterial oxygen (PaO2) and arterial carbon dioxide (PaCO2) were measured preoperatively and on the first day after surgery. Secondary outcomes including the vital signs, ventilation parameters, postoperative numerical rating scale (NRS) pain scores, the incidence of postoperative nausea and vomiting (PONV), perioperative reflux and aspiration, and nerve block-related complications were also evaluated. Results Thirteen men and seven women (age 35–70 years) were enrolled. Six (30%) had a flail chest, nine (45%) had hemothorax and/or pneumothorax, and two (10%) had pulmonary contusions. The postoperative PaO2 was higher than the preoperative value (91.2 ± 16.0 vs. 83.7 ± 15.9 mmHg, p = 0.004). The preoperative and postoperative PaCO2 were 42.1 ± 3.7 and 43.2 ± 3.7 mmHg (p = 0.165), respectively. Vital signs and spontaneous breathing were stable during the surgery. The end-tidal carbon dioxide concentrations (EtCO2) remained within an acceptable range (≤ 63 mmHg in all cases). NRS at T1, T2, and T3 were 3(2,4), 1(1,3), and 0(0,1), respectively. None had PONV, regurgitation, aspiration, and nerve block-related complications. Conclusions The technique of laryngeal mask anesthesia combined with a nerve block was feasible for internal fixation of rib fractures. Trial registration Current Controlled Trials ChiCTR1900023763 . Registrated on June 11, 2019.
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spelling doaj.art-27e1d02243654ab2930af0870e629caa2022-12-21T19:10:10ZengBMCBMC Anesthesiology1471-22532020-07-012011710.1186/s12871-020-01082-yFeasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational studyJun Cao0Xiaoyun Gao1Xiaoli Zhang2Jing Li3Junfeng Zhang4Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People’s HospitalDepartment of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People’s HospitalDepartment of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People’s HospitalDepartment of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People’s HospitalDepartment of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People’s HospitalAbstract Background The laryngeal mask airway (LMA) is occasionally used in internal fixation of rib fractures. We evaluated the feasibility of general anesthesia with an LMA associated to a thoracic paravertebral block (TPB) and/or an erector spinae plane block (ESPB) for internal fixation of rib fractures. Methods Twenty patients undergoing unilateral rib fracture fixation surgery were enrolled. Each patient received general anesthesia with an LMA combined with TPB and/or ESPB, which provided a successful blocking effect. All patients received postoperative continuous analgesia (PCA) with 500 mg of tramadol and 16 mg of lornoxicam, and intravenous injection of 50 mg of flurbiprofen twice a day. Our primary outcomes including the partial pressure of arterial oxygen (PaO2) and arterial carbon dioxide (PaCO2) were measured preoperatively and on the first day after surgery. Secondary outcomes including the vital signs, ventilation parameters, postoperative numerical rating scale (NRS) pain scores, the incidence of postoperative nausea and vomiting (PONV), perioperative reflux and aspiration, and nerve block-related complications were also evaluated. Results Thirteen men and seven women (age 35–70 years) were enrolled. Six (30%) had a flail chest, nine (45%) had hemothorax and/or pneumothorax, and two (10%) had pulmonary contusions. The postoperative PaO2 was higher than the preoperative value (91.2 ± 16.0 vs. 83.7 ± 15.9 mmHg, p = 0.004). The preoperative and postoperative PaCO2 were 42.1 ± 3.7 and 43.2 ± 3.7 mmHg (p = 0.165), respectively. Vital signs and spontaneous breathing were stable during the surgery. The end-tidal carbon dioxide concentrations (EtCO2) remained within an acceptable range (≤ 63 mmHg in all cases). NRS at T1, T2, and T3 were 3(2,4), 1(1,3), and 0(0,1), respectively. None had PONV, regurgitation, aspiration, and nerve block-related complications. Conclusions The technique of laryngeal mask anesthesia combined with a nerve block was feasible for internal fixation of rib fractures. Trial registration Current Controlled Trials ChiCTR1900023763 . Registrated on June 11, 2019.http://link.springer.com/article/10.1186/s12871-020-01082-yLaryngeal mask anesthesiaRib fracturesThoracic paravertebral blockErector spinae plane block
spellingShingle Jun Cao
Xiaoyun Gao
Xiaoli Zhang
Jing Li
Junfeng Zhang
Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
BMC Anesthesiology
Laryngeal mask anesthesia
Rib fractures
Thoracic paravertebral block
Erector spinae plane block
title Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
title_full Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
title_fullStr Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
title_full_unstemmed Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
title_short Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study
title_sort feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures a prospective observational study
topic Laryngeal mask anesthesia
Rib fractures
Thoracic paravertebral block
Erector spinae plane block
url http://link.springer.com/article/10.1186/s12871-020-01082-y
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