Objetivo:
Evaluar la función del ventrículo derecho (VD) e izquierdo (VI) en la hipertensión pulmonar (HP) mediante resonancia magnética cardíaca (RMC).

Materiales y métodos:
En pacientes con (grupo HP; n = 9) y sin (grupo control; n = 9) HP se evaluó volumen telediastólico (VTD) y telesistólico (VTS) y fracción de eyección (FE) de ventrículo derecho (VD) e izquierdo (VI), área de aurícula derecha (AD) e izquierda y diámetro de arteria pulmonar (AP).

Resultados:
En HP, el VD presentó mayor VTD y VTS y menor FE (HP 52 ± 5% vs. control 64 ± 2%; p < 0,05). Solo en HP se observó movimiento anormal del tabique interventricular y realce tardío en los puntos de inserción del VD en VI. En HP aumentó el área de AD y el diámetro de AP. En VD, solo en HP, la FE se correlacionó negativamente con VTD (Pearson r: –0,8290; p < 0,01) y VTS (Pearson r: –0,7869; p < 0,05).

Conclusiones:
La evaluación de pacientes con HP mediante RMC demuestra alteraciones fisiológicas y anatómicas de las cavidades derechas con disminución de la FE del VD que también afecta la interrelación VD/VI. Se recalca la importancia de una evaluación temprana y secuencial del VD con RMC para valorar la mejor estrategia terapéutica para cada caso en particular.

Objective:
To evaluate the function of the right ventricle (RV) and left ventricle (LV) in pulmonary hypertension (PH) through cardiac magnetic resonance imaging (CMR).

Material and method:
In patients with (PH group; n = 9) and without PH (control group; n = 9), end-diastolic volume (EDV) and end-systolic volume (ESV) and ejection fraction (EF) of right (RV) and left (LV) ventricle, area of the right (RA) and left (LA) atrium and diameter of the pulmonary artery (PA) were evaluated.

Results:
In PH, the RV increased EDV and ESV and decreased EF (PH: 52 ± 5% vs. control: 64 ± 2%; p < 0.05). Abnormal movement of the interventricular septum and late enhancement in the insertion points of the RV in the LV were only observed in HP. HP increased the area of RA and the diameter of PA. In LV, only in HP, EF was negatively correlated with EDV (Pearson r: –0.8290; p < 0.01) and ESV (Pearson r: –0.7869; p < 0.05). < 0.05)

Conclusions:
CMR evaluation of patients with PH demonstrates physiological and anatomical alterations of the right cavities with decreased EF in RV that also affects the RV/LV interrelationship. The importance of an early and sequential evaluation of the RV with CMR is emphasized to assess the best therapeutic strategy for each particular case.

Objective:
To evaluate the function of the right ventricle (RV) and left ventricle (LV) in pulmonary hypertension (PH) through cardiac magnetic resonance imaging (CMR).

Material and method:
In patients with (PH group; n = 9) and without PH (control group; n = 9), end-diastolic volume (EDV) and end-systolic volume (ESV) and ejection fraction (EF) of right (RV) and left (LV) ventricle, area of the right (RA) and left (LA) atrium and diameter of the pulmonary artery (PA) were evaluated.

Results:
In PH, the RV increased EDV and ESV and decreased EF (PH: 52 ± 5% vs. control: 64 ± 2%; p < 0.05). Abnormal movement of the interventricular septum and late enhancement in the insertion points of the RV in the LV were only observed in HP. HP increased the area of RA and the diameter of PA. In LV, only in HP, EF was negatively correlated with EDV (Pearson r: –0.8290; p < 0.01) and ESV (Pearson r: –0.7869; p < 0.05). < 0.05)

Conclusions:
CMR evaluation of patients with PH demonstrates physiological and anatomical alterations of the right cavities with decreased EF in RV that also affects the RV/LV interrelationship. The importance of an early and sequential evaluation of the RV with CMR is emphasized to assess the best therapeutic strategy for each particular case.