Measurement of intrapleural pressure in patients with spontaneous pneumothorax: a pilot study

BMC Pulmonary Medicine

Table 3 Comparison of intrapleural pressure in patients with and without persistent air leak

Intrapleural pressure	With persistent air leak^a (n = 5)	Without persistent air leak^a (n = 6)	p-value
Mean of end-inspiration and end-expiration pressure	1.66	−3.67	0.020
Patients with negative mean pressure at end-inspiration and end-expiration, n	1	6	0.0060
Patients with negative pressure at end-inspiration, n	2	6	0.026
Patients with negative pressure at end-expiration, n	0	2	0.15

^a Persistent air leak was defined as air leak with chest drainage for more than 7 days

ISSN: 1471-2466