Pneumomediastinum, pneumothorax and subcutaneous emphysema following the measurement of maximal expiratory pressure in a normal subject.
Mediastinal and subcutaneous emphysema have been reported as a consequence of deliberate manipulations of the breathing pattern producing a Valsalva-like maneuver in healthy subjects. We present a case of pneumomediastinum, pneumothorax and subcutaneous emphysema occurring in a normal volunteer after repeated measurements of the PEmax.
Manço
J C
JC
Department of Internal Medicine, School of Medicine of Ribeirão Preto, Brazil.
Terra-Filho
J
J
Silva
G A
GA
D000328:Adult; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging / Q000209:etiology*; D011030:Pneumothorax / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography; D012129:Respiratory Function Tests / Q000009:adverse effects*; D013352:Subcutaneous Emphysema / Q000000981:diagnostic imaging / Q000209:etiology*