“…Previous studies [20][21][22][23][24][25] reported that postoperative respiratory complications were found in 26%-54.0% of patients with IPF, moderately higher than in the present study, in which the CPFE group had a significantly higher rate of cardiopulmonary morbidity than the IPF alone group; this was assumed to be due to the fact that postoperative PFT decreased unexpectedly in CPFE, involving both %VC and FEV1%, because the CPFE patients experienced AE at almost the same rate as IPF patients without emphysema and required more HOT than IPF patients without emphysema. Moreover, previous studies 7,9,10,14) noted that CPFE was highly associated with pulmonary hypertension, which might be regarded as a cause of more 19) reported that postoperative pulmonary complications occurred in 20% of CPFE patients.…”