To describe a new sign that may be useful in the detection and follow-up of patients with moderate pneumothorax called the moving lung sign.
Thirteen patients with pneumothorax were examined. In the moving lung sign, the patients with moderate pneumothorax felt the lung movement when they were made to stand and bend forwards at the waist. This movement was also felt as a light tap by the palm of the examiner’s hand applied lightly to the chest. All the patients were followed daily from the day of diagnosis until the pneumothorax resolved.
Of the thirteen patients studied, nine with <30% pneumothorax had a positive moving lung sign. The rest were negative possibly secondary to small lung size in three patients with >50% pneumothorax, adhesions in two other patients which included one with CABG and the other with malignancy. This sign disappeared in all our patients when the pneumothorax resolved.
Moving Lung sign is a new clinical sign in moderate pneumothorax. This finding can be used to detect pneumothorax immediately, facilitating prompt treatment. Although the sensitivity, specificity of this sign should be evaluated in larger studies, clinically this sign could be used as an additional diagnostic tool. As Dr Chaudhry himself personally experienced this sign, we call it the “Chaudhry’s sign”.
This sign can lead the clinician further along this potential diagnosis in the early evaluation of acute chest pain which would potentially change the triage order of such patients seen in the emergency room and also lead the physician seeing the patient in the office setting to investigate this further with urgent chest x-ray. Further this sign could be used to follow patients with pneumothorax.
L. Kanaparthi, None.