Ramakrishnan Sivasubramanian
Department of Cardiology, All India Institute of Medical Sciences, New Delhi, 110 029, India.
Indian J Pediatr. 2015 Dec;82(12):1128-34. doi: 10.1007/s12098-015-1827-y. Epub 2015 Jul 31.
Pulmonary hypertension in children is a rare disease associated with high morbidity and mortality. The pathogenesis is not fully understood. Diagnostic evaluation focuses on ruling out other etiologies of pulmonary hypertension and prognosticating the disease. Congenital heart disease and left sided heart disease associated pulmonary hypertension are more common in children. Therapies for idiopathic pulmonary hypertension have evolved over the past decade. Phosphodiesterase 5 inhibitors (sildenafil, tadalafil), endothelin antagonists (Bosentan and ambrisentan) and prostanoids are the classes of drugs shown to be useful in pulmonary hypertension. However, use of these drugs in children is based on extrapolation of adult usage and on expert consensus rather than based on randomized controlled trial evidence. Despite these advances, the outcomes of various forms of pulmonary hypertension remain poor, especially in India, where some forms of therapy are not available and children often are diagnosed at an advanced stage of disease.
儿童肺动脉高压是一种罕见疾病,发病率和死亡率都很高。其发病机制尚未完全明确。诊断评估主要集中于排除肺动脉高压的其他病因并对疾病进行预后判断。先天性心脏病和左心疾病相关的肺动脉高压在儿童中更为常见。在过去十年中,特发性肺动脉高压的治疗方法不断发展。磷酸二酯酶5抑制剂(西地那非、他达拉非)、内皮素拮抗剂(波生坦和安立生坦)以及前列环素类药物已被证明对肺动脉高压有效。然而,这些药物在儿童中的使用是基于成人用药的推断和专家共识,而非基于随机对照试验证据。尽管有这些进展,但各种形式的肺动脉高压的治疗效果仍然不佳,尤其是在印度,某些治疗方法无法获得,儿童往往在疾病晚期才被诊断出来。