OBJECTIVETo investigate the inpatient pulmonary hypertension (PH) surveillance in a single center of cardiovascular hospital during last ten years.

METHODSIn this retrospective analysis, data from patients with discharge diagnosis as PH from Jan. 1996 to Dec. 2005 were collected.

RESULTSA total of 7085 out of 106 640 patients (6.63%) were documented as PH during the survey period and 3.77% PH was idiopathic, 65.93% PH originated from congenital heart diseases, 22.61% from left heart diseases, 5.66% from thrombotic diseases, 0.89% from respiratory diseases, 0.61% from connective tissue diseases, 0.51% from pulmonary vasculitis and 0.03% from portal hypertensive diseases. Both total inpatient number and patients with PH increased year by year during the last 10 years in our hospital. The number of in-hospital patients with PH was significantly higher in 2004 - 2005 than that in 1996 - 2003 (P < 0.0001) and more PH was originated from cardiomyopathy and valvular heart diseases. Idiopathic pulmonary hypertension also tended to increase and PH due to congenital heart diseases was significantly reduced during 2004 - 2005.

CONCLUSIONThe data from a single center of cardiovascular hospital shows a tendency for increased in-hospital prevalence of pulmonary hypertension during the last ten years.