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  • Title: [Immediately effects of inhaled aerosolised iloprost in adult patients with severe pulmonary hypertension secondary to congenital heart diseases].
    Author: Zhang CJ, Huang YG, Shen JJ, Huang T, Huang WH, Cui YL, Huang XS.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2011 Jan; 39(1):65-8. PubMed ID: 21418801.
    Abstract:
    OBJECTIVE: To investigate the immediately effects of inhaled aerosolized iloprost in adult patients with severe pulmonary arterial hypertension (PAH) secondary to congenital heart diseases (CHD). METHODS: Adult patients with severe PAH secondary to CHD (n = 165) were included in this study. Right heart catheterization was performed, Pulmonary and systemic blood flow, the oxygen consumption VO(2) (ml/min) were calculated using Fick's principle. Pulmonary vascular resistances (PVR) were calculated with standard formulas and indexed to body surface area. Hemodynamic parameters were measured before and after iloprost inhalation (20 µg). RESULTS: Post iloprost inhalation, heart rate, mean aortic pressure, pulmonary systolic pressure to aortic systolic pressure ratio all remained un changed (P > 0.05), while pulmonary artery pressure (PAP) were significantly reduced and Qp significantly increased from (7.2 ± 4.8) L/min to (9.9 ± 7.2) L/min (P < 0.01), PVR was also significantly reduced from (13.4 ± 8.7) Wood units to (9.5 ± 6.6) Wood units (P < 0.01), and left-to-right shunt volume increased from (3.2 ± 4.4) L/min to (5.5 ± 7.0) L/min (P < 0.01) and right-to-left shunt volume decreased from (1.0 ± 1.0) L/min to (0.7 ± 0.7) L/min (P < 0.01). Subgroup analysis showed that adult patients with patent ductus arteriosus and/or ventricular septal defects are more likely to develop severe pulmonary arterial hypertension or Eisenmenger syndrome than patients with atrial septal defects. CONCLUSIONS: Inhaled Aerosolised iloprost use is effective and safe for adult patients with severe pulmonary arterial hypertension secondary to congenital heart diseases.
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