Deutsche medizinische Wochenschrift (1946) · 1998
[Precapillary pulmonary hypertension of uncertain etiology].
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Halank M, Wiemer M, Tschöpe C, Poller W, Schwimmbeck P, Horstkotte D, Höffken G
Аннотация
HISTORY AND CLINICAL FINDINGS: A 39-year-old man was hospitalized for investigation of increasing dyspnoea for 3 month. On admission he was found to have bilateral ankle oedema, an enlarged liver and loud systolic murmur over the lower sternum.
INVESTIGATIONS: There were signs of right heart strain/hypertrophy on the chest radiogram and echocardiogram. After treatment of right heart failure cardiac catheterization indicated moderate precapillary pulmonary hypertension (PH) with a mean pulmonary artery pressure (PAPm) of 24 mm Hg and pulmonary vascular resistance (PVR) of 470 dyn.s.cm-5 at rest. All known causes having been excluded, the PH was classified as idiopathic.
TREATMENT AND COURSE: Evidence of acute pulmonary vascular reactivity was obtained with nitric oxide (NO) inhalation and oral diltiazem, a calcium-channel blocker. The latter, at a dosage of 3 x 120 mg daily, had after 13 days achieved a persisting reduction of PVR at rest and a reduction in PAP rise during exercise.
CONCLUSION: After exclusion of other causes, the acute right heart failure was found to be due to primary pulmonary hypertension. The therapeutic efficacity of diltiazem as a vasodilator can be predicted from the response to inhaled NO.
INVESTIGATIONS: There were signs of right heart strain/hypertrophy on the chest radiogram and echocardiogram. After treatment of right heart failure cardiac catheterization indicated moderate precapillary pulmonary hypertension (PH) with a mean pulmonary artery pressure (PAPm) of 24 mm Hg and pulmonary vascular resistance (PVR) of 470 dyn.s.cm-5 at rest. All known causes having been excluded, the PH was classified as idiopathic.
TREATMENT AND COURSE: Evidence of acute pulmonary vascular reactivity was obtained with nitric oxide (NO) inhalation and oral diltiazem, a calcium-channel blocker. The latter, at a dosage of 3 x 120 mg daily, had after 13 days achieved a persisting reduction of PVR at rest and a reduction in PAP rise during exercise.
CONCLUSION: After exclusion of other causes, the acute right heart failure was found to be due to primary pulmonary hypertension. The therapeutic efficacity of diltiazem as a vasodilator can be predicted from the response to inhaled NO.