Submental Ultrasound Is Effective in Predicting Difficult Mask Ventilation but Not in Difficult Laryngoscopy

2021 ◽  
Author(s):  
Han-Yu Lin ◽  
I-Shiang Tzeng ◽  
Yung-Lin Hsieh ◽  
Ming-Chang Kao ◽  
Yun-Chen Huang
Keyword(s):  
Difficult Laryngoscopy ◽  
Mask Ventilation ◽  
Difficult Mask Ventilation

The incidence of difficult laryngoscopy among patients with difficult mask ventilation

2010 ◽  
Vol 27 ◽  
pp. 254
Author(s):  
M. Anagnostopoulou ◽  
K. Papamichael ◽  
H. Galazoula ◽  
C. Karanastasi ◽  
G. Voyagis
Keyword(s):  
Difficult Laryngoscopy ◽  
Mask Ventilation ◽  
Difficult Mask Ventilation

Correlation of Neck Circumference with Difficult Mask Ventilation and Difficult Laryngoscopy in Morbidly Obese Patients: an Observational Study

2018 ◽  
Vol 28 (9) ◽  
pp. 2860-2867 ◽  
Author(s):  
Aylin Özdilek ◽  
Cigdem Akyol Beyoglu ◽  
Şafak Emre Erbabacan ◽  
Birsel Ekici ◽  
Fatiş Altındaş ◽  
...  
Keyword(s):  
Observational Study ◽  
Neck Circumference ◽  
Difficult Laryngoscopy ◽  
Morbidly Obese ◽  
Obese Patients ◽  
Mask Ventilation ◽  
Difficult Mask Ventilation

Incidence, Predictors, and Outcome of Difficult Mask Ventilation Combined With Difficult Laryngoscopy

2015 ◽  
Vol 59 (6) ◽  
pp. 271-272 ◽  
Author(s):  
Sachin Kheterpal ◽  
David Healy ◽  
Michael F. Aziz ◽  
Amy M. Shanks ◽  
Robert E. Freundlich ◽  
...  
Keyword(s):  
Difficult Laryngoscopy ◽  
Mask Ventilation ◽  
Difficult Mask Ventilation

scholarly journals Incidence, Predictors, and Outcome of Difficult Mask Ventilation Combined with Difficult Laryngoscopy

2013 ◽  
Vol 119 (6) ◽  
pp. 1360-1369 ◽  
Author(s):  
Sachin Kheterpal ◽  
David Healy ◽  
Michael F. Aziz ◽  
Amy M. Shanks ◽  
Robert E. Freundlich ◽  
...  
Keyword(s):  
Direct Laryngoscopy ◽  
Primary Outcome ◽  
Tertiary Care ◽  
Face Mask ◽  
Difficult Laryngoscopy ◽  
Perioperative Outcomes ◽  
Mask Ventilation ◽  
Difficult Mask Ventilation ◽  
Spine Mobility ◽  
Grade 3

Abstract Background: Research regarding difficult mask ventilation (DMV) combined with difficult laryngoscopy (DL) is extremely limited even though each technique serves as a rescue for one another. Methods: Four tertiary care centers participating in the Multicenter Perioperative Outcomes Group used a consistent structured patient history and airway examination and airway outcome definition. DMV was defined as grade 3 or 4 mask ventilation, and DL was defined as grade 3 or 4 laryngoscopic view or four or more intubation attempts. The primary outcome was DMV combined with DL. Patients with the primary outcome were compared to those without the primary outcome to identify predictors of DMV combined with DL using a non-parsimonious logistic regression. Results: Of 492,239 cases performed at four institutions among adult patients, 176,679 included a documented face mask ventilation and laryngoscopy attempt. Six hundred ninety-eight patients experienced the primary outcome, an overall incidence of 0.40%. One patient required an emergent cricothyrotomy, 177 were intubated using direct laryngoscopy, 284 using direct laryngoscopy with bougie introducer, 163 using videolaryngoscopy, and 73 using other techniques. Independent predictors of the primary outcome included age 46 yr or more, body mass index 30 or more, male sex, Mallampati III or IV, neck mass or radiation, limited thyromental distance, sleep apnea, presence of teeth, beard, thick neck, limited cervical spine mobility, and limited jaw protrusion (c-statistic 0.84 [95% CI, 0.82–0.87]). Conclusion: DMV combined with DL is an infrequent but not rare phenomenon. Most patients can be managed with the use of direct or videolaryngoscopy. An easy to use unweighted risk scale has robust discriminating capacity.

Prediction of difficult mask ventilation

2005 ◽  
Vol 22 (8) ◽  
pp. 638-640 ◽  
Author(s):  
P. Gautam ◽  
T. K. Gaul ◽  
N. Luthra
Keyword(s):  
Mask Ventilation ◽  
Difficult Mask Ventilation

scholarly journals Utilization of apnea-hypopnea index as a novel predictive factor for difficult mask ventilation in the Chinese population under general anesthesia

2021 ◽  
Author(s):  
Jiayi Wang ◽  
Jingjie Li ◽  
Pengcheng Zhao ◽  
Xuan Pu ◽  
Rong Hu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Elective Surgery ◽  
Chinese Patients ◽  
Apnea Hypopnea Index ◽  
Mask Ventilation ◽  
Clinical Predictors ◽  
Clinical Trial Registry ◽  
Difficult Mask Ventilation ◽  
Obstructive Sleep ◽  
Threatening Situation

Abstract Purpose Difficult mask ventilation (DMV) is a potentially life-threatening situation that can arise during anesthesia. However, most clinical predictors of DMV are based on European and US populations. On the other hand, most predictive models consist of multiple factors and complicated assessments. Since obstructive sleep apnea (OSA) is among the most important risk factors associated with DMV, the apnea-hypopnea index (AHI) may play an important role in determining patient risk.The purpose of this study was to investigate the relationship between DMV and AHI, and to determine preoperative risk factors for DMV in Chinese patients. Methods A prospective cohort trial enrolled patients scheduled for elective surgery. After obtaining informed consent, patient demographic information was collected, and patients were tested with pre-operative polysomnography. The anesthesiologist who managed the airway graded the mask ventilation. The difficult mask ventilation was defined as the mask ventilation provided by an unassisted anesthesiologist without oral airway or other adjuvant. A logistic regression model was used to analyze the association between AHI and DMV. Results A total of 159 patients were analyzed. For both primary and secondary outcomes, the unadjusted and adjusted odds ratio for DMV showed significant increases by 5 AHI units. AHI, age, and the Mallampati classification were found to be independent predictive factors for DMV. Conclusions AHI is associated with DMV as a novel independent risk factor in Chinese patients. Along with age and Mallampati classification, AHI should be included in establishing a superior predictive strategy for DMV screening. Trial registration Chinese Clinical Trial Registry ChiCTR-DDD-17013076

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