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  • Title: [Clinical analysis of hypoparathyroidism with altered serum muscle enzymes: report of 41 cases].
    Author: Wu WX, Ren XY, Zhai CG.
    Journal: Zhonghua Yi Xue Za Zhi; 2013 Jan 08; 93(2):135-7. PubMed ID: 23648352.
    Abstract:
    OBJECTIVE: To examine the clinical features of hypoparathyroidism (HP) with altered serum muscle enzymes and explore the correlations with age, gender, disease duration, serum total calcium, serum total phosphorus and parathyroid hormone (PTH). METHODS: From January 2005 to October 2011, a total of 41 HP patients at our hospital were retrospectively analyzed. RESULTS: There were 16 patients with elevated serum muscle enzymes and 25 with normal serum muscle enzymes. The former group included 11 patients of idiopathic hypoparathyroidism (IHP) and 5 of pseudohypoparathyroidism (PHP); serum calcium was (1.53 ± 0.25) mmol/L and serum phosphorus (2.1 ± 0.6) mmol/L; medians of creatine kinase (CK), lactic dehydrogenase (LDH), aspartate amino transfer enzymes (AST) were 309 (126 - 10 046), 279 (131 - 741) and 27 (17 - 467) U/L in HP patients respectively. And the latter group included 20 IHP patients and 5 PHP ones; serum calcium was (1.64 ± 0.29) mmol/L and serum phosphorus (2.2 ± 0.6) mmol/L. The levels of serum muscle enzyme were compared before and after treatment in the former group. And they significantly declined with the rising serum level of calcium after treatment. The serum levels of CK (r = -0.82), LDH (r = -0.55) and AST (r = -0.56) in HP patients with elevated serum muscle enzymes had a negative correlation with the serum level of calcium (all P < 0.05). And there was no correlation with age, gender, disease duration or serum total phosphorus (P > 0.05). CONCLUSION: Elevated serum muscle enzymes in HP patients have a negative correlation with serum level of calcium and there is no correlation with age, gender, disease duration, serum total phosphorus or parathyroid hormone. And elevated serum muscle enzymes are gradually restored with the normalized serum level of calcium.
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