• Pradeep M Venkategowda, Kranthi Mahendrakar, S Manimala Rao, Dnyaneshwar P Mutkule, Chetan G Shirodkar, and H Yogesh.
• Department of Critical Care Medicine, Yashoda Multi-Speciality Hospital, Shantishikara Apartments, D4, #124, Bedind Enadu Bld, Somajiguda, Hyderabad, India.
• Indian J Crit Care Med. 2015 Mar 1;19(3):170-3.

AimCorrelation of upper air column width ratio in postextubation stridor patients.Materials And MethodsA prospective observational study was conducted in a tertiary hospital between January and December 2013. Patients who were admitted in Intensive Care Unit and intubated for >24 h were included (72 patients). The upper airway air column width ratio (air column width before extubation/air column width after intubation) was calculated and compared in patient with or without postextubation stridor.ResultsThe incidence of stridor was 6.9% (5/72). The duration of mechanical ventilation was 5.60 ± 1.14 days and 3.91 ± 1.45 days in stridor and nonstridor group respectively. In all 5 patients who had stridor, the upper airway air column width ratio was 0.8 or less.ConclusionAir column width ratio of 0.8 or less may be helpful in predicting postextubation stridor, which should be confirmed by large observational studies.

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