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. 2017 Feb 20;130(4):382–391. doi: 10.4103/0366-6999.199829

Figure 1.

Figure 1

Flow chart of inclusion criteria for clinical patients. A total of 338 patients with PH registered in the research database of Beijing Chao-Yang Hospital between October 2005 and August 2014, except 26 patients belonging to Group 2/3/5, included in this study were 312 patients, specifically including 99 patients with PAH and 213 patients with CTEPH. A total of 57 patients were excluded because their data were incomplete or could not be analyzed. Of 80 patients who underwent AVT in the PAH group (80/99), nine had a positive and 71 had a negative response. Of 175 patients who underwent AVT in the CTEPH group (175/213), 25 had a positive and 150 had a negative response. *Group 2/3/5 PH include that due to left heart disease (group 2), due to lung diseases and/or hypoxia (group 3) and PH with unclear and/or multifactorial mechanisms (group 5). AVT:Acute vasoreactivity testing; CTEPH:Chronic thromboembolic pulmonary hypertension;PAH:Pulmonary arterial hypertension;PH:Pulmonary hypertension.