Determining the size of pneumothorax in the upright patient.

Abstract

A simple measurement, the average interpleural distance (AID), which is obtained from three linear measurements, closely predicts true pneumothorax size as determined by radiographic thoracic gas volume measurement (mean variation -2.4 +/- 7.23 SD). The distribution of pneumothorax volume between the affected lung and the ipsilateral thoracic cage is variable and unpredictable. It was found that the average volume of pneumothorax that is accommodated by thoracic cage expansion (8%) is much less than previously reported. This appears to be the result of variable degrees of splinting and chest wall pain associated with pneumothorax.

Comparison of upright inspiratory and expiratory chest radiographs for detecting pneumothoraces.

“…, an average intenpleunal distance of less than 2.25 cm, which was estimated to be less than a 25% pneumothorax as defined by Rhea et al [3] For purposes of analysis, a score of 4 or 5 was considered to be positive for pneumothorax, and scores of 1 , 2, and 3 were considered to be negative.…”

Tratamento cirúrgico do pneumotórax espontâneo primário no primeiro episódio

“…: 3cm -30%) -proposto por Rhea et al (11) como alternativa à sua fórmula que calcula as médias das distâncias intrapleurais e estabelece o volume de pneumotórax correspondente.…”

Simultaneus bilateral spontaneus pneumothoraces: A Retrospective Analysis of 11 Cases

“…Rhea ve ark. 'nın yöntemi kullanılarak kollaps derecesi değerlendirildi [6]. Kollaps derecesi; pnömotoraksın genişliği %20'den az ise "küçük", %20-40 arasında ise "orta", %40'dan fazla ise "büyük" olarak sınıflandırıldı.…”