【作者】 唐景华；

【导师】 刘红；

【作者基本信息】 广西医科大学 ， 内分泌， 2010， 硕士

【摘要】 目的通过回顾性分析IHP临床特点和相关因素分析,探讨IHP早期诊疗、减少误诊及并发症方法。方法收集广西医科大学第一附属医院1994年12月到2009年9月确诊的44例IHP住院患者的临床资料,采用Wilcoxon秩和检验、Bivariate Correlation过程、多分类Logistic回归分析或Ordinal过程法等统计学方法对患者的临床特征、实验室检查、诊断与误诊、治疗及转归等情况进行回顾性分析。结果:本研究显示:1患者平均发病年龄为22.1±14.5岁;误诊率为95.5%,其中15例(34.9%)被误诊为癫痫发作史,25例(58.1%)诊为低钙血症,未能明确IHP;中位数病程为30月。2 2.1临床症状以手足搐搦和癫痫发作多见。发现脑钙化26例,21例EEG异常,6例白内障。2.2低血钙38例,高血磷40例;治疗后患者血钙明显升高(P=0.000);治疗后血磷明显降低(P=0.000);治疗前后血钙磷乘积无明显差异(P=0.125);30例24小时尿钙低于正常值,24例24小时尿磷低于正常值。2.3因素分析:癫痫发作为大脑钙化程度的预测因子(P=0.041);颅内钙化为癫痫发作的危险因素(b=1.168,OR=3.216, P=0.006);癫痫发作(b=2.719,OR=15.162,P=0.014)、病程(b=-0.024,OR=0.977,P=0.025)为EEG异常的主要因素。2.4相关性及回归分析:血钙与血磷相为负相关关系(r=-0.388,P=0.009);血磷与血钙磷乘积为正相关关系(r=0.801,P=0.000);血钙标准化回归系数为0.628(P=0.000),血磷标准化回归系数为1.045(P=0.000),即血磷对血钙磷乘积升高贡献率血磷较血钙大。颅内钙化与智力障碍及癫痫发作正相关关系(r=0.408,P=0.01;r=0.457,P=0.003)。脑电图异常与癫痫发作为正相关关系(r=0.329,P=0.05)。发病年龄与血钙磷乘积为负相关关系(r=-0.494,P=0.001)。3.治疗方案均采用钙剂联合维生素D或其衍生物治疗、促进排磷和低磷饮食。结论1 IHP多见于青少年儿童,误诊率高、病程长、脑钙化发生率高。2低血钙、高血磷和低尿钙磷是IHP临床特征;血钙、血磷与血钙磷乘积均为正相关关系,但血磷对血钙磷乘积升高贡献率大于血钙;脑钙化与智力障碍、与癫痫发作呈正相关关系;发病年龄与血钙磷乘积为负相关关系。脑钙化为癫痫发作的主要危险因素。更多还原

【Abstract】 Objective Through the retrospective analysis of clinical characteristics and related factors,aim to explore the early diagnosis and treatment to reduce the misdiagnosis and complications of the IHP.Methods clinical data of of characteristics,laboratory findings, diagnosis and misdiagnosis,treatment and prognosis of 44 hospitalized patients diagnosed of IHP from December 1994 to September 2009 in first affiliated hospital of Guangxi Medical University were collected and were retrospectively analyzed by statistical methods such as wilcoxon rank sum test,bivariate correlation process,multi-category or ordinal logistic regression analysis,etc.Results The study showed:1 the average age of onset were 22.1±14.5years;Misdiagnosis rate was 95.5%,15 cases misdiagnosed as epilepsy history,25 misdiagnosed as hypocalcemia;median duration was 30 months.2 2.1 clinical manifestations of tetany and seizures more common,40 cases were misdiagnosed as Tetany,seizures in 19 cases.26 cases have cerebral calcification,EEG abnormalities in 21 cases,cataract in 6 cases.2.2 38 cases in low blood calcium,40 cases in hyperphosphatemia,serum calcium after treatment was significantly higher than pre-treatment(P=0.000) ; After treatment serum phosphate was significantly lower than before treatment(P=0.000);blood calcium-phosphorus product before and after treatment was not significantly different ( P = 0.125 );24-hour urine calcium of 30 cases below the normal,24 cases below the normal 24-hour urine phosphorus.2.3 Factor Analysis:Epilepsy fat as a predictor of brain calcification (P=0.041);Cerebral calcification was a risk factor of epilepsy ( b =1.168,OR=3.216,P =0.006);Seizures (b =2.719 ,OR = 15.162,P = 0.014 ),duration ( b = -0.024,OR =0.977,P =0.025) as risk factors for abnormal EEG.2.4 Correlation and regression analysis: Calcium and phosphorus was a negative correlation (r = -0.388 , P=0.009), Phosphorus and blood calcium and phosphorus product was a positive correlation (r=0.801,P=0.000),the standardized regression coefficient of calcium was 0.628(P=0.000),phosphorus standardized regression coefficient was 1.045(P=0.000),namely,the contribution rate of phosphorus on calcium-phosphorus product increases is larger than the calcium;Brain calcification and mental retardation was a positive correlation (r=0.408,P=0.01),Cerebral calcification and epilepsy was a positive correlation(r=0.457,P=0.003),Age of onset and blood calcium and phosphorus product was negative correlation (r=-0.494,P=0.001),EEG abnormalities and seizures was a positive correlation (r =0.329, P = 0.05).3 Treatment programs were using calcium and vitamin D or derivatives thereof,treatment,promotion of exclusive phosphorus and low phosphorus diet.Conclusion 1 the high rate of misdiagnosis and delay long course,the high incidence of brain calcification in IHP,and more common in young children.2 Hypocalcemia,hyperphosphatemia,and low urinary calcium and phosphorus are the clinical features of IHP;Serum calcium and phosphorus in IHP patients exist a negative correlation,Serum calcium,phosphorus and blood calcium-phosphorus product exists a straight-line relationship,And the contribution rate of phosphorus to the rise of blood calcium-phosphorus product was large than calcium.Cerebral calcification and mental retardation as a positive correlation;cerebral calcification and epilepsy and mental retardation exist positive relationship,Age of onset and calcium-phosphorus product exist a negative correlation,cerebral calcification was a risk factor for epileptic seizures.更多还原