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Lenhardt R, Akca O, Obal D, Businger J, Cooke E. Nasopharyngeal Ventilation Compared to Facemask Ventilation: A Prospective, Randomized, Crossover Trial in Two Different Elective Cohorts. Cureus 2023; 15:e39049. [PMID: 37323341 PMCID: PMC10266899 DOI: 10.7759/cureus.39049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Facemask ventilation is routinely used to preoxygenate patients before endotracheal intubation during anesthesia induction or to secure ventilation in patients with respiratory insufficiency. Occasionally, facemask ventilation cannot be performed adequately. The placement of a regular endotracheal tube through the nose into the hypopharynx may be a valid alternative to improve ventilation and oxygenation before endotracheal intubation (nasopharyngeal ventilation). We tested the hypothesis that nasopharyngeal ventilation is superior in its efficacy compared to traditional facemask ventilation. METHODS In this prospective, randomized, crossover trial, we enrolled surgical patients requiring either nasal intubation (cohort #1, n = 20) or patients who met "difficult to mask ventilate" criteria (cohort #2, n = 20). Patients in each cohort were randomly assigned to receive pressure-controlled facemask ventilation followed by nasopharyngeal ventilation or vice versa. The ventilation settings were kept constant. The primary outcome was tidal volume. The secondary outcome was the difficulty of ventilation, measured using the Warters grading scale. RESULTS Tidal volume was significantly increased by nasopharyngeal ventilation in cohort #1 (597 ± 156 ml vs.462 ± 220 ml, p = 0.019) and cohort #2 (525 ± 157 ml vs.259 ± 151 ml, p < 0.01). Warters grading scale for mask ventilation was 0.6 ± 1.4 in cohort #1, and 2.6 ± 1.5 in cohort #2. CONCLUSION Patients at risk for difficult facemask ventilation may benefit from nasopharyngeal ventilation to maintain adequate ventilation and oxygenation before endotracheal intubation. This ventilation mode may offer another option for ventilation at induction of anesthesia and during the management of respiratory insufficiency, especially in the setting of "unexpected" ventilation difficulty.
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Affiliation(s)
| | - Ozan Akca
- Anesthesiology, Johns Hopkins University, Baltimore, USA
| | - Detlef Obal
- Anesthesiology, Stanford University, Stanford, USA
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Grillot N, Garot M, Lasocki S, Huet O, Bouzat P, Le Moal C, Oudot M, Chatel-Josse N, El Amine Y, Danguy des Déserts M, Bruneau N, Cinotti R, David JS, Langeron O, Minville V, Tching-Sin M, Faurel-Paul E, Lerebourg C, Flattres-Duchaussoy D, Jobert A, Asehnoune K, Feuillet F, Roquilly A. Assessment of remifentanil for rapid sequence induction and intubation in patients at risk of pulmonary aspiration of gastric contents compared to rapid-onset paralytic agents: study protocol for a non-inferiority simple blind randomized controlled trial (the REMICRUSH study). Trials 2021; 22:237. [PMID: 33785069 PMCID: PMC8009075 DOI: 10.1186/s13063-021-05192-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/15/2021] [Indexed: 12/18/2022] Open
Abstract
Background Rapid-onset paralytic agents are recommended to achieve muscle relaxation and facilitate tracheal intubation during rapid sequence induction in patients at risk of pulmonary aspiration of gastric contents. However, opioids are frequently used in this setting. The study’s objective is to demonstrate the non-inferiority of remifentanil compared to rapid-onset paralytic agents, in association with an hypnotic drug, for tracheal intubation in patients undergoing procedure under general anesthesia and at risk of pulmonary aspiration of gastric contents. Methods The REMICRUSH (Remifentanil for Rapid Sequence Induction of Anaesthesia) study is a multicenter, single-blinded, non-inferiority randomized controlled trial comparing remifentanil (3 to 4 μg/kg) with rapid-onset paralytic agents (succinylcholine or rocuronium 1 mg/kg) for rapid sequence induction in 1150 adult surgical patients requiring tracheal intubation during general anesthesia. Enrolment started in October 2019 in 15 French anesthesia units. The expected date of the final follow-up is October 2021. The primary outcome is the proportion of successful tracheal intubation without major complications. A non-inferiority margin of 7% was chosen. Analyses of the intent-to-treat and per-protocol populations are planned. Discussion The REMICRUSH trial protocol has been approved by the ethics committee of The Comité de Protection des Personnes Sud-Ouest et Outre-Mer II and will be carried out according to the principles of the Declaration of Helsinki and the Good Clinical Practice guidelines. The results of this study will be disseminated through presentations at scientific conferences and publications in peer-reviewed journals. The REMICRUSH trial is the first randomized controlled trial powered to investigate whether remifentanil with hypnotics is non-inferior to rapid-onset paralytic agents with hypnotic in rapid sequence induction of anesthesia for full stomach patients considering successful tracheal intubation without major complication. Trial registration ClinicalTrials.gov NCT03960801. Registered on May 23, 2019. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-021-05192-x.
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Affiliation(s)
- Nicolas Grillot
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, F-44093, France.
| | - Matthias Garot
- CHU de Lille, Pole Anesthésie Réanimation, Hôpital Claude Huriez, Lille, France
| | - Sigismond Lasocki
- Université d'Angers, CHU d'Angers, Département Anesthésie Réanimation, Angers, F-49933, France
| | - Olivier Huet
- Anaesthesia, and Intensive Care Unit, Brest Regional University Hospital, Brest, France
| | - Pierre Bouzat
- Pôle d'Anesthésie-Réanimation, Hôpital Albert Michallon, BP 217, F-38043, Grenoble, France
| | - Charlène Le Moal
- Anaesthesia and Intensive Care Unit, Le Mans Public Hospital, Le Mans, France
| | - Mathieu Oudot
- Anaesthesia Unit, Vendée District Hospital Center, La Roche-sur-Yon, France
| | | | - Younes El Amine
- Anaesthesia Unit, Valenciennes Public Hospital, Valenciennes, France
| | | | - Nathalie Bruneau
- Anaesthesia and Intensive Care Unit, Lille Regional University Hospital, Lille, France
| | - Raphael Cinotti
- CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôpital Guillaume et René Laennec, Université de Nantes, Saint-Herblain, 44800, France
| | - Jean-Stéphane David
- Hospices Civils de Lyon, Lyon Sud Regional University Hospital, Anaesthesia and Intensive Care Unit, Lyon, France
| | - Olivier Langeron
- Anaesthesia and Intensive Care Unit, Henri-Mondor University Hospital (AP-HP), Créteil, France
| | - Vincent Minville
- Anaesthesia and Intensive Care Unit, Toulouse University Hospital, Toulouse, France
| | | | - Elodie Faurel-Paul
- Department of Clinical Research, Nantes University Hospital, Nantes, France
| | - Céline Lerebourg
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, F-44093, France
| | - Delphine Flattres-Duchaussoy
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, F-44093, France
| | - Alexandra Jobert
- Department of Clinical Research, Nantes University Hospital, Nantes, France
| | - Karim Asehnoune
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, F-44093, France
| | - Fanny Feuillet
- Nantes University Hospital, Methodology and Biostatistics Platform, Department of Clinical Research, Nantes, France.,Nantes University, INSERM, SPHERE U1246, Nantes, France
| | - Antoine Roquilly
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, F-44093, France
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Hanouz JL, Bonnet V, Buléon C, Simonet T, Radenac D, Zamparini G, Fischer MO, Gérard JL. Comparison of the Mallampati Classification in Sitting and Supine Position to Predict Difficult Tracheal Intubation. Anesth Analg 2018; 126:161-169. [DOI: 10.1213/ane.0000000000002108] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Nowakowski M, Williams S, Gallant J, Ruel M, Robitaille A. Predictors of Difficult Intubation with the Bonfils Rigid Fiberscope. Anesth Analg 2017; 122:1901-6. [PMID: 27028774 DOI: 10.1213/ane.0000000000001258] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Endotracheal intubation is commonly performed via direct laryngoscopy (DL). However, in certain patients, DL may be difficult or impossible. The Bonfils Rigid Fiberscope® (BRF) is an alternative intubation device, the design of which raises the question of whether factors that predict difficult DL also predict difficult BRF. We undertook this study to determine which demographic, morphologic, and morphometric factors predict difficult intubation with the BRF. METHODS Four hundred adult patients scheduled for elective surgery were recruited. Patients were excluded if awake intubation, rapid sequence induction, or induction without neuromuscular blocking agents was planned. Data were recorded, including age, sex, weight, height, American Society of Anesthesiologist classification, history of snoring and sleep apnea, Mallampati class, upper lip bite test score, interincisor, thyromental and sternothyroid distances, manubriomental distances in flexion and extension, neck circumference, maximal neck flexion and extension, neck skinfold thickness at the cricoid cartilage, and Cormack and Lehane grade obtained via DL after paralysis was confirmed. Quality of glottic visualization (good or poor), as well as the number of intubation attempts and time to successful intubation with the BRF, was noted. Univariate analyses were performed to evaluate the association between patient characteristics and time required for intubation. Variables that exhibited a significant correlation were included in a multivariate analysis using a standard least squares model. A P < 0.05 was considered significant. RESULTS Glottic visualization with the BRF was good in 396 of 400 (99%) cases. On the first attempt, 390 patients were successfully intubated with the BRF; 6 patients required >1 attempt; 4 patients could not be intubated by using the BRF alone. These 4 patients were intubated by using a combination of DL and BRF (2 patients), DL and a Frova bougie (1 patient), and DL and an endotracheal tube shaped with a semirigid stylet (1 patient). Mean time for successful intubation was 26 ± 13 seconds. Multivariate analysis showed that decreased mouth opening (P = 0.008), increased body mass index (P = 0.011), and higher Cormack and Lehane grade (P = 0.038) predicted longer intubation times, whereas shorter thyromental distance predicted slightly shorter intubation times (P < 0.0001). CONCLUSIONS Mouth opening, body mass index, and high Cormack and Lehane grade predict longer intubation times, as with DL. Decreasing thyromental distance predicts slightly shorter intubation times with the BRF, possibly because of a design initially optimized for a pediatric population with receding chins. These findings, along with the high success rate of BRF in this study, and the possibility of further increasing success rates by combining BRF with DL, help define the role of BRF intubation in contemporary airway management.
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Affiliation(s)
- Michal Nowakowski
- From the Anesthesia Department of the University of Montreal Health Center, Université de Montréal, Montreal, Quebec, Canada
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5
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Saito T, Liu W, Chew STH, Ti LK. Incidence of and risk factors for difficult ventilation via a supraglottic airway device in a population of 14,480 patients from South-East Asia. Anaesthesia 2015; 70:1079-83. [PMID: 26052860 DOI: 10.1111/anae.13153] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2015] [Indexed: 11/27/2022]
Abstract
Difficult airway practice guidelines include the use of a supraglottic airway device as part of the armamentarium to provide and maintain ventilation and oxygenation. We retrospectively reviewed 14 480 patients aged ≥ 18 years who underwent general anaesthesia. We identified 74 (0.5%) patients whose lungs were identified as having been difficult to ventilate via a supraglottic airway device, and 29 (0.2%) patients in whom device placement failed. Multivariate analysis identified four risk factors for difficult ventilation via a supraglottic airway device: male sex (OR 1.75, 95% CI 1.07-2.86, p = 0.02); age > 45 years (OR 1.70, 95% CI 1.01-2.86, p = 0.04); short thyromental distance (OR 4.35, 95% CI 2.31-8.17, p < 0.001); and limited neck movement (OR 2.75, 95% CI 1.02-7.44, p = 0.04). Adverse respiratory events including oxygen desaturation, hypercapnoea, laryngospasm, and bronchospasm occurred in 17 patients (22%). The incidence of difficult ventilation via a supraglottic airway device was 0.5% in a large cohort of South-East Asian patients.
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Affiliation(s)
- T Saito
- Department of Anaesthesia, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - W Liu
- Department of Anaesthesia, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - S T H Chew
- Department of Anaesthesia, Singapore General Hospital, Singapore
| | - L K Ti
- Department of Anaesthesia, National University Health System, Singapore
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Bensghir M, Bouhabba N, Fjouji S, Haimeur C, Azendour H. [Difficult intubation: should follow the recommendations]. ACTA ACUST UNITED AC 2014; 33:181-4. [PMID: 24530085 DOI: 10.1016/j.annfar.2014.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 01/06/2014] [Indexed: 11/28/2022]
Abstract
Intubation and ventilation impossible mask is a dramatic situation with potentially serious consequences. We report the case of a patient of 43 years, followed for a goiter, which was scheduled for a total thyroidectomy under general anesthesia. Preoperative evaluation is not noted signs of compression or tracheal deviation, and there were no criteria predictive of intubation or difficult mask ventilation. The induction of anesthesia was standard. Mask ventilation was effective allowing paralysis. The standard laryngoscopy showed a score of Cormack and Lehane grade IV. Several attempts at intubation were made leading to a situation of intubation and ventilation impossible mask with deep desaturation. A tracheostomy was done urgently. The patient was operated on, six months later, with a fiber optic intubation. Through this case, the authors draw attention to the difficulty of achieving an emergency tracheotomy in the presence of goiter and emphasize the need for integration of different modes of learning and retention of management skills of the upper airway.
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Affiliation(s)
- M Bensghir
- Service d'anesthésiologie, hôpital Militaire Med V Rabat, université Med V Souissi, B.P 8840 Rabat Agdal, Maroc.
| | - N Bouhabba
- Service d'anesthésiologie, hôpital Militaire Med V Rabat, université Med V Souissi, B.P 8840 Rabat Agdal, Maroc
| | - S Fjouji
- Service d'anesthésiologie, hôpital Militaire Med V Rabat, université Med V Souissi, B.P 8840 Rabat Agdal, Maroc
| | - C Haimeur
- Service d'anesthésiologie, hôpital Militaire Med V Rabat, université Med V Souissi, B.P 8840 Rabat Agdal, Maroc
| | - H Azendour
- Service d'anesthésiologie, hôpital Militaire Med V Rabat, université Med V Souissi, B.P 8840 Rabat Agdal, Maroc
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Masquère P, Lonjaret L, Fourcade O, Minville V. [Video laryngoscopic tracheal intubation under sedation]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2013; 32:358-360. [PMID: 23607984 DOI: 10.1016/j.annfar.2013.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 03/13/2013] [Indexed: 06/02/2023]
Abstract
We report a video laryngoscopic tracheal intubation under sedation in a patient with a hip fracture. Preoperative assessment revealed signs of difficult airway management linked to a cervical spine immobilization. Here we describe an alternative method to awake fiber optic flexible intubation.
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Affiliation(s)
- P Masquère
- Coordination d'anesthésie, département d'anesthésie et réanimation, université Paul-Sabatier, hôpital Purpan, centre hospitalier universitaire de Toulouse, place du Dr-Baylac, Toulouse cedex 9, France
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Bernasinski M, Lepousé C, Bankole E, Rouche O, Milloncourt L, Leon A. [Financial and medicolegal impact of dental trauma]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2012; 31:191-5. [PMID: 22377413 DOI: 10.1016/j.annfar.2011.12.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Accepted: 12/06/2011] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Dental injuries are among the most common complications of general anesthesia. Yet few studies have assessed the costs and factors that involve the responsibility of the anesthetist. STUDY DESIGN A retrospective study was conducted at the university hospital of Reims on 46 cases of dental injuries directly related to anaesthesia. RESULTS Ten patients made a claim for compensation. Two of them have received compensation following a medical expertise, which revealed for the first patient a possible alternative to general anaesthesia, and the second, hardware failure of intubation. The Administrative Court was entered once in 9 years. The global insurance-cost amounts to 4476 euros for all patients. The review of all cases of anaesthesia shows clearly that the dental claims are associated with a significant under clinical evaluation of dental status and criteria for difficult intubation during the anaesthesia. The information to the patient on this risk is not obvious from reading the anaesthesia records. No mouth guard was used. CONCLUSION This work proves that the statements of caution are the most common and a minority of dental trauma lead to a claim. Claims are due to the high cost of dental care repair. The proportion of patients receiving benefits is extremely low. Medical expertise is an essential part of the evaluation of medical responsibilities. No compensation was paid without expertise. The lack of physical examination and information are contrary to our professional obligations and may involve our responsibility. The lack of patient information is not generated for compensation to the extent that the consequences of failure are easily dental weighed against the benefits of the entire medical-surgical procedure that the patient has agreed.
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Affiliation(s)
- M Bernasinski
- Centre hospitalier universitaire de Reims, 45, rue Cognacq-Jay, 51092 Reims, France.
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Nouette-Gaulain K, Lenfant F, Jacquet-Francillon D, Belbachir A, Bournigault-Nuquet A, Choquet O, Claisse A, Dujarric F, Francon D, Gentili M, Majoufre-Lefebvre C, Marciniack B, Péan D, Yavordios PG, Leone M. [French clinical guidelines for prevention of perianaesthetic dental injuries: long text]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2012; 31:213-23. [PMID: 22377414 DOI: 10.1016/j.annfar.2012.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Dental injuries represent the most common claims against the anaesthesiologists. Dental lesions are frequent complications of orotracheal intubation and major causal factors are, firstly, preexisting poor dentition, and, secondly, difficult laryngoscopy and tracheal intubation. The aim of this work was to prioritize propositions for prevention in perianaesthetic dental injury and for care in case of dental trauma. METHOD A GRADE consensus procedure consisting of three rounds was conducted. A purposively selected heterogeneous panel (n=15) of experts, comprising 10 practitioners in anesthesiology, one practitioner who is jurist and anaesthesiologist, two practitioners in maxillofacial surgery, and two practitioners in dentist surgery. In cases where the data did not appear conclusive, recommendations were based on the consensus opinion of the board members. The guidelines represent the best current evidence based on literature search and professional opinion. RESULTS The entire panel completed all three rounds and 31 plus six propositions were written for adult and paediatric clinical practice in anaesthesiology, respectively. The experts highlight the interest of preoperative visit for minimizing dental injuries: the practitioner must identify risk factors for difficult intubation and ventilation, describe precisely patient's preoperative dental condition, including upper incisor most commonly involved teeth in dental trauma. Patients have to be informed by practitioner for risk dental injury and anaesthesiology staff must choose his anesthesia protocol before the induction of intubation narcosis, avoiding insufficient anaesthesia and lack of experience by the anaesthesiologist. The choice of accurate proceeding during laryngoscopy, tracheal intubation and extubation for example, can aid in the prevention of dental injury, reduce the number of claims and the cost of litigation process. DISCUSSION These guidelines delineate an approach for the prevention of perianaesthetic dental trauma and for the immediate or urgent care in case of perianaesthetic dental injury.
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Affiliation(s)
- K Nouette-Gaulain
- Pôle d'anesthésie réanimation, service d'anesthésie-réanimation III, université Bordeaux-Segalen, hôpital des enfants, centre hospitalier universitaire de Bordeaux, place Amélie-Raba-Léon, 33076 Bordeaux, France.
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11
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Gestion des voies aériennes en obstétrique. ACTA ACUST UNITED AC 2011; 30:651-64. [DOI: 10.1016/j.annfar.2011.03.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 03/24/2011] [Indexed: 11/21/2022]
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Prise en charge initiale de l’arrêt cardiaque de la femme enceinte. ANNALES FRANCAISES DE MEDECINE D URGENCE 2011. [DOI: 10.1007/s13341-011-0085-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Andreu E, Schmucker E, Drudis R, Farré M, Franco T, Monclús E, Montferrer N, Munar F, Valero R. [Algorithm for pediatric difficult airway]. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2011; 58:304-311. [PMID: 21688509 DOI: 10.1016/s0034-9356(11)70066-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- E Andreu
- Hospital Universitario Vail Hebrón, Area Matemo Infantil, Barcelona.
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The Simplified Predictive Intubation Difficulty Score: a new weighted score for difficult airway assessment. Eur J Anaesthesiol 2010; 26:1003-9. [PMID: 19593145 DOI: 10.1097/eja.0b013e32832efc71] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Using the Intubation Difficulty Scale (IDS) more than 5 as a standardized definition of difficult intubation, we propose a new score to predict difficult intubation: the Simplified Predictive Intubation Difficulty Score (SPIDS). METHODS We prospectively studied 1024 patients scheduled for elective surgery under general anaesthesia. Using bivariate and multivariable analysis, we established risk factors of difficult intubation. Then, we assigned point values to each of the adjusted risk factors, their sum composing the SPIDS. We assessed its predictive accuracy using sensitivity, specificity, positive (PPV) and negative predictive values (NPV), and the area under the receiver operating characteristic (ROC) curve (AUC), and compared it with the corresponding nonweighted score. The optimal predictive level of the SPIDS was determined using ROC curve analysis. RESULTS We found five adjusted risk factors for IDS more than 5: pathological conditions associated with difficult intubation (malformation of the face, acromegaly, cervical rheumatism, tumours of the airway, and diabetes mellitus), mouth opening less than 3.5 cm, a ratio of patient's height to thyromental distance 25 at least, head and neck movement less than 80 degrees , and Mallampati 2 at least. Sensitivity, specificity, PPV and NPV of the SPIDS were 65, 76, 14 and 97%, respectively. AUC of the SPIDS and the nonweighted score (obtained previously using a stepwise logistic regression) were respectively 0.78 [95% confidence interval (CI) 0.72-0.84] and 0.69 (95% CI 0.64-0.73). The threshold for an optimal predictive level of the SPIDS was above 10 of 55. CONCLUSION The SPIDS seems easy to perform, and by weighting risk factors of difficult intubation, it could help anaesthesiologists to plan a difficult airway management strategy. A value of SPIDS strictly above 10 could encourage the anaesthesiologists to plan for the beginning of the anaesthetic induction with 'alternative' airway devices ready in the operating theatre.
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Diemunsch P, Mercier FJ, Noll E. [Obstetric anaesthesia for instrumental vaginal delivery]. JOURNAL DE GYNECOLOGIE, OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION 2008; 37 Suppl 8:S269-S275. [PMID: 19268203 DOI: 10.1016/s0368-2315(08)74764-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The aim of the anaesthesia for instrumental delivery is to provide optimal operation conditions for the obstetrician, appropriate maternal comfort, altogether with safety for the mother and her foetus. The type and location for this intervention are chosen individually for each case according to the indication, the risk of caesarean section and the local specificities. The general safety recommendations for obstetric anaesthesia apply in every case. Since an epidural analgesia is often already working, this type of anaesthesia is the most frequently used for the extractions. A spinal anaesthesia is a logical choice where an epidural in sot yet working. The pudendal block is a second line choice and the general anaesthesia remains as the last alternative in acute emergencies, in cases of failed regional anaesthesia or when the mother refuses any other anaesthesia despite proper information or proves unable to cooperate.
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Affiliation(s)
- P Diemunsch
- Hôpital de Hautepierre, service d'anesthésie-réanimation chirurgicale, 1, av. Molière, 67098 Strasbourg cedex, France.
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Pourquoi une fiche d’information du patient après une intubation difficile ? ACTA ACUST UNITED AC 2008; 27:426-30. [DOI: 10.1016/j.annfar.2008.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2008] [Accepted: 03/10/2008] [Indexed: 11/16/2022]
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