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In patients with stable and unstable angina who underwent PCI after pretreatment with clopidogrel, bivalirudin did not provide a net clinical benefit (i.e., it did not reduce the incidence of the composite end point of death, myocardial infarction, urgent target-vessel revascularization, or major bleeding) as compared with unfractionated heparin, but it did significantly reduce the incidence of major bleeding. (ClinicalTrials.gov number, NCT00262054.)

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clinicaltrials.gov Identifier: NCT00962416.

P ulmonary hypertension (PH) frequently coexists with severe aortic stenosis (AS) and confers a worse prognosis.1,2 Transcatheter aortic valve implantation (TAVI) is an alternative therapeutic modality to surgical aortic valve replacement (SAVR) for patients with symptomatic severe AS who are either inoperable or high risk for conventional SAVR.3-5 Patient selection for TAVI relies on clinical and anatomic factors, and risk assessment is a critical component of the procedural planning. 6 Previous studies have shown PH to be a predictor of mortality after TAVI. [7][8][9][10][11] However, studies to date have focused mainly on PH severity rather than hemodynamic presentation and used noninvasive measurements of pulmonary artery systolic pressure (PASP), which correlate only modestly with invasive measurements.12 According toBackground-Pulmonary hypertension (PH) frequently coexists with severe aortic stenosis, and PH severity has been shown to predict outcomes after transcatheter aortic valve implantation (TAVI). The effect of PH hemodynamic presentation on clinical outcomes after TAVI is unknown. Methods and Results-Of 606 consecutive patients undergoing TAVI, 433 (71.4%) patients with severe aortic stenosis and a preprocedural right heart catheterization were assessed. Patients were dichotomized according to whether PH was present (mean pulmonary artery pressure, ≥25 mm Hg; n=325) or not (n=108). Patients with PH were further dichotomized by left ventricular end-diastolic pressure into postcapillary (left ventricular end-diastolic pressure, >15 mm Hg; n=269) and precapillary groups (left ventricular end-diastolic pressure, ≤15 mm Hg; n=56). Finally, patients with postcapillary PH were divided into isolated (n=220) and combined (n=49) subgroups according to whether the diastolic pressure difference (diastolic pulmonary artery pressure−left ventricular end-diastolic pressure) was normal (<7 mm Hg) or elevated (≥7 mm Hg). Primary end point was mortality at 1 year. PH was present in 325 of 433 (75%) patients and was predominantly postcapillary (n=269/325; 82%