Volume 22, Issue 3 (November 2008 2008)                   Med J Islam Repub Iran 2008 | Back to browse issues page

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Homayouni M, Hashemi R, Ashraf Askari A. A novel bedside technique for differentiation of exudative from transudative pleural effusion. Med J Islam Repub Iran. 2008; 22 (3) :120-124
URL: http://mjiri.iums.ac.ir/article-1-2-en.html
Head of Dept. of Internal Medicine, Shohada-e- Tajrish Medical Center, , homayouni28@yahoo.com
Abstract:   (4486 Views)


 Background: At present, differentiation between exudative and transudative pleural

 effusion is based solely on laboratory measures and is time-consuming. Asimple

 bedside method would be of great help to differentiate between these two types of effusions.

 We present a new method for this purpose assessed in 46 patients.

 Methods: Standard laboratory tests and our method were tested using the same fluid

 samples in 46 patients with pleural effusion. Aprincipal in physics called the capillary

 tube law (h=2a/rpg) was used to compare the samples. The imbibition of the fluid

 level less than 15mm signified exudate and greater than 15mm signified transudate.

 Results: Our data shows that this method is 74% sensitive and 89.4% specific compared

 to the standard method when analyzed statistically by the chi-square and Kappa

 agreement (Cronbach’s K) tests.

 Conclusion: The capillary tube test has an acceptable validity for bedside diagnosis

 of exudative or transudative effusions.


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