• Emerg Med Australas · Feb 2010

    Comparative Study

    Morphometric analysis and clinical application of the working dimensions of cricothyroid membrane in south Indian adults: with special relevance to surgical cricothyroidotomy.

    • Ivan J Prithishkumar and Suresh S David.
    • Institute of Anatomy, Government Madras Medical College and Research Institute, Chennai, India. drivanjames@gmail.com
    • Emerg Med Australas. 2010 Feb 1;22(1):13-20.

    ObjectiveTo measure the working dimensions of the cricothyroid membrane in the adult south Indian population and to establish the association between the working dimensions and the appropriate endotracheal tube size for the purpose of cricothyroidotomy.MethodsCross-sectional evaluation of 50 fresh adult autopsy cases (35 men, 15 women) in a medical university teaching hospital in South India.ResultsAge ranged from 17.0 to 83.0 years. Working dimensions of the membrane in neutral position of neck, in men: width = 8.41 +/- 2.11 mm, height = 6.57 +/- 1.87 mm; in women: width = 6.30 +/- 1.29 mm, height = 5.80 +/- 1.56 mm. Depth of the subglottic larynx at the level of cricoid cartilage: men = 20.73 +/- 1.97 mm, women = 15.62 +/- 1.71 mm. Distance of the lower border of cricothyroid membrane from suprasternal notch in neutral position of neck, in men = 5.18 +/- 1.76 cm, women = 4.72 +/- 1.55 cm; in passively extended neck, men = 7.86 +/- 1.25 cm, women = 8.05 +/- 1.28 cm. Regression equations have been derived to determine endotracheal tube size for cricothyroidotomy, based on distance between sternal notch and chin, and height of the individual (P < 0.05).ConclusionsWorking dimensions are smaller in the Indian group compared with western publications. Endotracheal tubes ranging from size 3.0 to 6.0 might be used for cricothyroidotomy in the adult south Indian population.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…