Katholi Richard E, Couri Daniel M
Prairie Cardiovascular Consultants, Ltd., 619 E. Mason Street, Ste. 4P57, Springfield, IL 62701, USA.
Int J Hypertens. 2011;2011:495349. doi: 10.4061/2011/495349. Epub 2011 Jun 30.
Left ventricular hypertrophy is a maladaptive response to chronic pressure overload and an important risk factor for atrial fibrillation, diastolic heart failure, systolic heart failure, and sudden death in patients with hypertension. Since not all patients with hypertension develop left ventricular hypertrophy, there are clinical findings that should be kept in mind that may alert the physician to the presence of left ventricular hypertrophy so a more definitive evaluation can be performed using an echocardiogram or cardiovascular magnetic resonance. Controlling arterial pressure, sodium restriction, and weight loss independently facilitate the regression of left ventricular hypertrophy. Choice of antihypertensive agents may be important when treating a patient with hypertensive left ventricular hypertrophy. Angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers followed by calcium channel antagonists most rapidly facilitate the regression of left ventricular hypertrophy. With the regression of left ventricular hypertrophy, diastolic function and coronary flow reserve usually improve, and cardiovascular risk decreases.
左心室肥厚是对慢性压力超负荷的一种适应性不良反应,也是高血压患者发生心房颤动、舒张性心力衰竭、收缩性心力衰竭和猝死的重要危险因素。由于并非所有高血压患者都会发生左心室肥厚,因此有一些临床发现应牢记在心,这些发现可能会提醒医生注意左心室肥厚的存在,以便使用超声心动图或心血管磁共振进行更明确的评估。独立控制动脉压、限制钠摄入和减轻体重有助于左心室肥厚的消退。在治疗高血压左心室肥厚患者时,选择抗高血压药物可能很重要。血管紧张素转换酶抑制剂或血管紧张素II受体阻滞剂,其次是钙通道拮抗剂,最能迅速促进左心室肥厚的消退。随着左心室肥厚的消退,舒张功能和冠状动脉血流储备通常会改善,心血管风险也会降低。