J Med Life Sci > Volume 16(3); 2019 > Article
Journal of Medicine and Life Science 2019;16(3):96-100.
DOI: https://doi.org/10.22730/jmls.2019.16.3.96    Published online January 16, 2020.
기립빈맥증후군 환자의 임상적 및 자율신경 특성
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Clinical and autonomic characteristics in patients with postural tachycardia syndrome
Duk Ju Kim, Joong Goo Kim, Sa-Yoon Kang
Jeju National University School of Medicine
Department of Neurology, Jeju National University Hospital
Department of Neurology, Jeju National University School of Medicine
Correspondence:  Joong Goo Kim, Email: lilis1118@naver.com
Abstract
Postural tachycardia syndrome (POTS) is a common, although not so well-known variant of cardiovascular autonomic disorder characterized by an excessive heart rate increase on standing. POTS is probably underdiagnosed due to the heterogeneity in both presentation and etiology. The aim of this study was to evaluate the clinical and autonomic features in patients with POTS. We reviewed the medical records of patients with POTS. Medical records include onset age, sex, presenting symptoms, body mass index (BMI) and prognosis. All patients had an autonomic function and laboratory tests. Ninety-nine patients met the inclusion criteria for POTS. Common presenting symptoms were brief loss of consciousness, dizziness, blurred vision and headache. Autonomic function tests showed abnormal quantitative sudomotor axon reflex testing in 20 patients of 99 POTS patients. Abnormal post-ganglionic sympathetic sudomotor function is generally considered to reflect a neuropathic form of POTS. In treatments, 83 patients were treated by non-pharmacological management including lifestyle changes and 16 patients required the initiation of pharmacological therapies. Most patients with POTS showed a relatively favorable prognosis. POTS is a chronic disease with a substantial subset of patients recovering within few years after the initial presentation. Future efforts should focus on better understanding of POTS pathophysiology and designing randomized controlled trials for selection of more effective therapy.
Key Words: Autonomic, testing, Orthostatic, intolerance, Postural, tachycardia, syndrome


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