Table of Contents

HK J Paediatr (New Series)
Vol 20. No. 3, 2015

HK J Paediatr (New Series) 2015;20:145-150

Original Article

Review of Children Diagnosed with Acute Myositis of Calves Admitted to a Regional Hospital in Hong Kong in the Period 2003-2012
2003-2012年香港一所醫院收治急性小腿肌炎患兒回顧分析

CO Sham, K Tse


Abstract

Objective: To investigate the clinical features, management and outcome of all children admitted to a regional hospital in Hong Kong from 2003 to 2012 because of benign acute childhood myositis. Method: A retrospective study was conducted in a regional hospital. Hospital records of children admitted from year 2003 to 2012 with diagnostic coding of myositis, rhabdomyolysis and myalgia were reviewed. Those presented with acute onset of pain in the calves, preceded by a febrile episode, and with raised serum creatine kinase level were included. Data including gender, age, causative agent and outcome were analysed. Those with myositis of calves associated with influenza were compared with a comparative sample of influenza A and influenza B patients obtained randomly from the electronic medical record system. The age, sex and length of hospitalisation of this group of patients were compared with all patients with influenza admitted in the study period. Results: Seventy-one cases fulfilled our search criteria. Thirty-five cases were excluded for various reasons and the remaining cases were evaluated. The median age at presentation was 6-year-old and 75% of the affected patients were boys. The median length of hospitalisation was 3 days. Sixty percent of the cases were associated with influenza B virus. All patients well recovered with no mortality. The level of serum creatine kinase level at presentation did not correlate with length of stay in hospital. There was no statistically significant difference in length of hospital stay between the 24 cases of influenza associated acute myositis of calves and the 24 randomly selected cases of influenza without myositis for comparison. Conclusions: Patients with benign acute childhood myositis carried good prognosis. Unnecessary diagnostic investigations could be avoided with careful history and physical examination.

目的:分析2003-2012年香港一所醫院收治的所有兒童良性急性肌炎患兒的臨床特徵、治療以及康復資料。方法:在一所地區醫院進行了回顧研究。分析2003-2012年診斷為肌炎、橫紋肌溶解以及肌痛的患兒的臨床資料,納入表現為急性小腿肌痛、具有發熱前驅史及血清肌酸激酶增高的病例。分析患者性別、年齡、致病原以及臨床結局資訊。在電子病歷系統中抽取同等數量的流感A和流感B病例,與患有流感相關小腿肌炎的病例進行比較,分析患者年齡、性別以及住院院時間。結果:共71個病例符合研究標準,由於各種原因篩除其中35個病例,對剩餘病例進行分析。發病年齡中位數為6歲,75%為男孩。住院時間中位數為3天。60%患者與流感B有關。所有患者康復良好,無死亡病例。發病時血清肌酸激酶水平與住院時間長無相關性。24例流感相關小腿急性肌炎患者與隨機抽取查的24例無肌炎的流感患者相比,住院時間長無統計學顯著性差異。結論:兒童良性急性肌炎預後良好,通過仔細問病史與體格檢查,可以避免不必要的診斷檢查。

Keyword : Child; Influenza; Myositis

關鍵詞:兒童、流感、肌炎

 
 

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