释 义 adj. 长的；长时间的；远的；长音的；（人）高的；持续的；冗长的；记得牢的；较大量的；远期（获利）的
同根词 adj. lengthy 漫长的，冗长的；啰唆的
adv. lengthwise 纵长地
例 句 Why do I have to stay in hospital so long?
释 义 n. [临床] 综合症状；并发症状；校验子；并发位
短 语 severe acute respiratory syndrome 严重急性呼吸系统综合症
irritable bowel syndrome [医]肠道易激综合症
nephrotic syndrome 肾病综合征
例 句 Women complain about premenstrual syndrome, but I think of it as the only time of the month that I can be myself.
作者： Isik Turker
Since the early 1990s, the concept of primary “inherited” arrhythmia syndromes or ion channelopathies has evolved rapidly as a result of revolutionary progresses made in molecular genetics. Alterations in genes coding for membrane proteins such as ion channels or their associated proteins responsible for the generation of cardiac action potentials (AP) have been shown to cause specific malfunctions which eventually lead to cardiac arrhythmias. These arrhythmic disorders include congenital long QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, short QT syndrome, progressive cardiac conduction disease, etc. Among these, long QT and Brugada syndromes are the most extensively studied, and drugs cause a phenocopy of these two diseases. To date, more than 10 different genes have been reported to be responsible for each syndrome. More recently, it was recognized that long QT syndrome can be latent, even in the presence of an unequivocally pathogenic mutation (silent mutation carrier). Co-existence of other pathological conditions in these silent mutation carriers may trigger a malignant form of ventricular arrhythmia, the so called torsade de pointes (TdP) that is most commonly brought about by drugs.