Resumen

LESCANO¹, Adrián et al. Factores pronósticos en hipertensión pulmonar Nuestra experiencia. Insuf. card. [online]. 2018, vol.13, n.2, pp.51-56. ISSN 1852-3862.

Introduction. Pulmonary hypertension (PH) is a multifactorial disease with high morbidity and mortality. Although its clinical evolution has improved in recent years due to the advance in its diagnosis and treatment, we have little information about clinical and prognostic factors associated with this entity. Purpose. To determine the prevalence and characteristics of adverse prognostic factors in our population with a recent diagnosis of PH. Material and methods. Patients with a recent diagnosis of PH (less than 7 days after diagnosis) confirmed by right heart catheterization (RHC) with mPAP ≥ 25 mm Hg, between March 2012 and December 2016, by different specialized services in heart failure (HF) and PH were included. The following personal data and clinical variables were obtained: symptoms and functional class (FC); HP group (G); hemodynamic parameters: mPAP, pulmonary arterial occlusion pressure (PAOP), right atrial pressure (RAP) and cardiac index (CI); functional data: 6-minute walk distance (6MWD); echocardiographic variables: right ventricle systolic function (RVSF), tricuspid annular plane systolic excursion (TAPSE), systolic pulmonary artery pressure (SPAP) and pericardial effusion (PE). Poor prognosis factors analyzed were: history of HF, syncope, advanced FC (III/IV), 6MWD <350 meters, presence of PE, TAPSE ≤ 15 mm, RA ≥12 mm Hg and CI ≤ 2.2 L/min/m². Results. One hundred seven patients were included, 74% female, with a mean age of 58.8 (± 19) years, 33%≥ 70 years. The mean time to diagnosis was 24 months from the presence of the first sign or symptom recorded. Distribution by HP G was: GI (64%), GII (15%), GIII (9%), GIV (6%) and GV (6%). Considering GI, sclerodermia was the predominant etiology (29%). FC of presentation was: FC II 41%, FC III 35%, FC IV 20%, FC I 4%. Among the clinical variables, history of HF was present in 72% of patients, syncope in 23% and angina in 19%. Mean 6MWD was 320 (± 148) m, ≤ 350 m in 47% of the patients. The direct hemodynamic parameters by RHC were: mPAP 48.3 (± 16) mm Hg; RAP 9.7 (± 5.2) mm Hg and ≥14 mm Hg in 27%, CI 2.78 L/min/m² (≤ 2.2-23%). Echocardiographic analysis showed Impaired RVSF in 79% of cases (42% mild, 18% moderate and 19% severe) with a mean TAPSE of 17.8 (± 4) mm and ≤ 15 mm in 37%; PE was present in 25% of patients. Conclusions. In our population with recent diagnosis of PH, there is a high percentage of elderly patients and poor prognosis factors. This findings remark the need for early diagnosis and therapeutic strategies.

Palabras clave : Pulmonary hypertension; Prognostic factors; Clinical variables; Echocardiographic parameters; Hemodynamic parameters; Heart failure.

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