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The aim of this study is to determine the correlation of neck circumference with difficult mask ventilation and laryngoscopy in morbidly obese patients.
Patients' Mallampati score, upper lip bite test, neck mobility, teeth abnormalities were evaluated preoperatively. Mouth opening, sternomental and thyromental distances, neck circumference, thoracic circumference, breast circumference , belly circumference and hip circumference were measured preoperatively.
After anesthesia induciton with propofol and rocuronium, patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation.
Laringoscopy was performed with MacIntosh laryngoscop and Cormack Lehane (CL) score was evaluated. CL score III and IV were defined as difficult laryngoscopy.
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| Measure | Description | Time Frame |
|---|---|---|
| Correlation of difficult laryngoscopy with neck circumference | Cormack Lehane scores III and IV were defined as difficult laryngoscopy. | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with neck circumference | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Measure | Description | Time Frame |
|---|---|---|
| Correlation of difficult laryngoscopy with modified mallampati score | Cormack Lehane scores III and IV were defined as difficult laryngoscopy. | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with modified mallampati score |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with body mass index (BMI) > = 40, applied for elective surgery.
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| Name | Affiliation | Role |
|---|---|---|
| Güniz Köksal, Professor | Istanbul University Cerrahpasa Medical Faculty | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Istanbul University Cerrahpasa Medical Faculty | Istanbul | 34098 | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29687341 | Derived | Ozdilek A, Beyoglu CA, Erbabacan SE, Ekici B, Altindas F, Vehid S, Koksal GM. Correlation of Neck Circumference with Difficult Mask Ventilation and Difficult Laryngoscopy in Morbidly Obese Patients: an Observational Study. Obes Surg. 2018 Sep;28(9):2860-2867. doi: 10.1007/s11695-018-3263-3. |
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| ID | Term |
|---|---|
| D009767 | Obesity, Morbid |
| ID | Term |
|---|---|
| D009765 | Obesity |
| D050177 | Overweight |
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
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Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. |
| Ventilation difficulty scale was assessed after during mask ventilation |
| Correlation of difficult laryngoscopy with neck movement | Cormack Lehane scores III and IV were defined as difficult laryngoscopy. | Cormack Lehane score was assessed during laryngoscopy |
| with neck movement | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with dentition | Cormack Lehane scores III and IV were defined as difficult laryngoscopy. | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with dentition | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with upper lip bite test | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with upper lip bite test | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with mouth opening | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with mouth opening | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with sternomental distance | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with sternomental distance | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with breast circumference | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with breast circumference | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with thorax circumference | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with thorax circumference | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with waist circumference | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with waist circumference | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| Correlation of difficult laryngoscopy with hip circumference | Cormack Lehane scores III and IV were defined as difficult laryngoscopy | Cormack Lehane score was assessed during laryngoscopy |
| Correlation of difficult mask ventilation with hip circumference | Patients' mask ventilation difficulty was evaluated as defined below: V1- Ventilated by single anesthesist easily; V2- Ventilated by single anesthesist with oral airway; V3- Ventilated by two anesthesists; V4- Unable to mask ventilate. V3 and V4 was defined as difficult mask ventilation. | Ventilation difficulty scale was assessed during mask ventilation |
| D009750 |
| Nutritional and Metabolic Diseases |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |