New York Head and Neck Institute, Center for Voice and Swallowing Disorders, New York, New York 10019, USA.
Laryngoscope. 2011 Oct;121(10):2195-8. doi: 10.1002/lary.22168. Epub 2011 Sep 6.
Spasmodic dysphonia (SD) is an idiopathic voice disorder that is characterized by either a strained, strangled voice quality or a breathy voice with aphonic segments of connected speech. It has been suggested that environmental factors play a role in triggering the onset. Clinical observation suggests that some patients associate onset with specific events or factors while others do not. The purpose of this study was to examine a large database of SD patients to determine if specific triggers are associated with the onset of SD.
Retrospective chart review.
A total of 350 charts of patients with SD were identified and were categorized as either "sudden onset" or "gradual onset." One hundred sixty-nine recalled their circumstances surrounding onset. Forty-five percent of these patients described the onset as sudden. Patient perceptions of inciting events in the sudden onset group were identified 77% of the time and 2% of the time in the gradual onset group. The most common factors identified were stress (42%), upper respiratory infection (33%), and pregnancy and parturition (10%).
Thirty-five percent of SD patients perceive their disorder to have a sudden onset with identified inciting events. This prevalence raises questions regarding possible behavioral and environmental factors surrounding the onset of this disorder.
痉挛性发声障碍（SD）是一种特发性嗓音障碍，其特征为声音紧张、窒息，或在连续言语中有断续的无声音段。有观点认为环境因素在引发疾病方面起作用。临床观察表明，一些患者将发病与特定事件或因素联系起来，而另一些患者则没有。本研究的目的是检查大量的 SD 患者数据库，以确定是否存在与 SD 发病相关的特定诱因。
回顾性图表审查。
共确定了 350 例 SD 患者的图表，并将其分为“突然发病”或“逐渐发病”。其中 169 例患者回忆起发病前后的情况。这些患者中有 45%的人描述发病突然。在突然发病组中，患者对发病诱因的感知有 77%的时间被识别到，而在逐渐发病组中只有 2%的时间被识别到。最常见的诱因包括压力（42%）、上呼吸道感染（33%）和妊娠及分娩（10%）。
35%的 SD 患者认为他们的疾病发病突然，并有明确的诱因。这种发病率引发了关于该疾病发病周围可能存在的行为和环境因素的问题。
