Intrabullous Adhesion Pexia (IBAP) by Percutaneous Pulmonary Bulla Centesis: An Alternative for the Surgical Treatment of Giant Pulmonary Bulla (GPB)

Table 2

Therapeutic effect of IBAP assessed by lung function, ABG analysis, 6 MWD test, and dyspnea index.

Items	(cases)		Before IBAP^§	After IBAP^§§
Lung function (L)	26	FEV1	1.06 ± 0.73	1.57 ± 1.13
		RV	2.77 ± 0.54	2.36 ± 0.38
		TLC	6.46 ± 1.21	5.86 ± 1.08
ABG (mmHg)	38	PaO2	52.18 ± 8.31	68.29 ± 12.34
		PaCO2	42.71 ± 10.29	41.05 ± 4.57^#
6 MWD (m)	38		131.58 ± 105.24	301.79 ± 197.90
Dyspnea index	38		4.11 ± 1.11	2.24 ± 1.15

Data are represented as mean ± standard deviation (SD). As shown in Table 1, 12 of 38 cases did not test lung function due to serious conditions or their unwillingness. IBAP: intrabullous adhesion pexy; ABG: arterial blood gas; 6 MWD: 6 min walking distance; FEV1: forced expiratory volume in 1 s; RV: residual volume; TLC: total lung capacity volume; PaO₂: arterial partial pressure of oxygen; PaCO₂: arterial partial pressure of carbon dioxide. 1 mmHg = 0.133 kPa. ; ^# (the value of posttreatment compared to before). ^§On the first day of admission; ^§§one week after the drainage tube was removed.