儿童意外损伤对心脏的危害研究

目的 研究儿童意外损伤对心脏的危害。方法 将１６６例意外损伤患儿分为中毒组（４８例），烧烫伤组（５８例），气管异物组（６０例），设同龄对照组（５０例）。用紫外法对各组患儿进行心肌酶谱测定并对各类损伤患儿做常规心电图检查和心电监护。结果 心肌酶谱异常７９例，阳性率４７．５９％。心电图异常６３例，阳怀率３７．９５％。中毒组ＣＫ，ＣＫ－ＭＢ，ＨＢＤ，ＬＤＨ均明显升高，与对照组比较有明显差异Ｐ〈０．０１。     

新生儿缺氧缺血性脑病血清LDH、CK与同功酶活性的变化及其临床意义

目的探讨新生儿缺氧缺血性脑病（ＨＩＥ）患儿血清乳酸脱氢酶（ＬＤＨ）、肌酸激酶（ＣＫ）及其同功酶活性检测的临床应用价值。方法对４７例ＨＩＥ患儿和３９例正常新生儿采用比色法和电泳法测定其血清中总ＬＤＨ、ＣＫ及其同功酶活性。结果中至重度ＨＩＥ血清总ＬＤＨ、ＣＫ及同功酶ＬＤＨ３、ＬＤＨ４、ＬＤＨ５、ＣＫ－ＢＢ较正常儿明显增高（Ｐ＜００５）,ＬＤＨ１、ＬＤＨ２、ＣＫ－ＭＭ、ＣＫ－ＭＢ仅在重度ＨＩＥ组较正常儿显著增高（Ｐ＜００１）;ＨＩＥ治疗后７天血清ＬＤＨ３、ＬＤＨ４、ＬＤＨ５、ＣＫ－ＭＭ、ＣＫ－ＭＢ、ＣＫ－ＢＢ较出生４８ｈ内明显下降（Ｐ＜００５）,但血清总ＬＤＨ、ＬＤＨ１、ＬＤＨ２、ＬＤＨ３、ＣＫ－ＭＢ、ＣＫ－ＢＢ仍高于同时相正常组（Ｐ＜００５）。结论ＨＩＥ时血清ＬＤＨ、ＣＫ及同功酶,特别是ＬＤＨ３、ＣＫ－ＢＢ可作为评价ＨＩＥ脑损害程度的敏感指标。     

新生儿窒息时血清心肌酶活性的变化

目的探讨血清心肌酶活性在判断新生儿窒息是否有缺氧缺血性脑病（ＨＩＥ）及其它并发症的参考价值。方法设对照组（２４例）和新生儿窒息组（３１例）,并在新生儿窒息组中分设ＨＩＥ组、无合并症组、合并症组,分别测定血清中ＬＤＨ、α－ＨＢＤＨ、ＣＰＫ、ＣＫ－ＭＢ的活性,并作对比分析。结果对照组和新生儿窒息组的两组心肌酶活性比较中ＣＫ－ＭＢ差异显著（Ｐ＜００１）,ＨＩＥ组和窒息合并症组与窒息无合并症组的心肌酶活性比较有明显升高（Ｐ＜００５）。结论血清中ＣＫ－ＭＢ作为新生儿窒息心肌损害的生化指标特异性强。血清中ＣＫ－ＭＢ等心肌酶活性升高程度对判断新生儿窒息是否有ＨＩＥ及其它并发症的存在有一定的参考价值。     

急性病毒性心肌炎患儿肌钙蛋白T测定的临床意义

目的　探讨急性病毒性心肌炎患儿血清心脏肌钙蛋白Ｔ（ＣＴｎＴ）的临床意义。方法　４０ 例急性病毒性心肌炎患儿进行酶免法测定血清ＣＴｎＴ,同时测定心肌酶谱ＣＫ、ＣＫ－ＭＢ、ＬＤＨ等,２ｗ ｋ 后复检。结果　４０ 例急性病毒性心肌炎患儿血清ＣＴｎＴ浓度治疗前较治疗后明显升高,与正常对照组比较有显著差异（Ｐ＜ ０．０１）。与心肌酶谱对照,血清ＣＴｎＴ较ＣＫ－ＭＢ的增高率明显,持续时间长。结论　急性病毒性心肌炎患儿血清ＣＴｎＴ明显升高,提示心肌受累,其特异性高于ＣＫ－ＭＢ。持续增高可提示预后不良,应结合ＥＫＧ变化,进一步加强心肌保护性治疗措施。     

急性肾小球肾炎并发严重循环充血状态时心肌酶学改变及其临床意义

目的探讨急性肾小球肾炎（ＡＧＮ）并发严重循环充血状态时心肌酶学改变及其临床意义。方法对７２例无并发症的ＡＧＮ和２６例并发严重循环充血状态的ＡＧＮ患儿血中天冬氨酸转氨酶（ＡＳＴ）、肌酸激酶（ＣＫ）、肌酸激酶同功酶（ＣＫ－ＭＢ）、乳酸脱氢酶（ＬＤＨ）及ＬＤＨ－１的含量进行测定。结果无并发症的ＡＧＮ患儿ＡＳＴ、ＣＫ、ＣＫ－ＭＢ、ＬＤＨ及ＬＤＨ－１均在正常范围,与正常健康儿童对照均无显著性差异（Ｐ均＞００５）,而并发严重循环充血状态的ＡＧＮ患儿ＡＳＴ、ＣＫ及ＬＤＨ均明显高于正常健康儿童,而ＣＫ－ＭＢ及ＬＤＨ－１仍在正常范围。结论测定血清心肌酶对判断ＡＧＮ是否并发严重循环充血有较大参考价值。     

急性肠套叠手术脱套后再灌注损伤

选择２５例经手术治疗的急性肠套叠患儿的受累阑尾，测定其组织脂质过氧化物（ＬＰＯ）含量，并以１４例择期剖腹手术患儿的正常阑尾作为对照。手术前和术后１２ｈ分别测定两组患儿血中乳酸脱氢酶（ＬＤＨ）、肌酸激酶（ＣＫ）活性及内毒素（ＥＴＸ）含量。结果急性肠套叠组的ＬＰＯ含量显著高于对照组（Ｐ＜０．０５），ＬＤＨ、ＣＫ活性及ＥＴＸ浓度术后较术前明显升高（Ｐ＜０．０５）。表明急性肠套叠脱套术后发生了缺血后再灌注损伤，术后血中内毒素浓度的升高与再灌注损伤有关。     

柯萨奇B组病毒感染与小儿哮喘发作关系的探讨

目的　探讨柯萨奇 Ｂ 组病毒（ Ｃ Ｖ Ｂ） 感染与哮喘发作的关系。方法　观察急性发作期哮喘患儿１０２ 例、上呼吸道感染１８２ 例、非感染性疾病患儿７１ 例、健康儿童３０ 例。采用 Ｅ Ｌ Ｉ Ｓ Ａ 法测定静脉血 Ｃ Ｖ Ｂ 抗原（ Ｃ Ｖ Ｂ－ Ａｇ）和 Ｉｇ Ｍ 抗体（ Ｃ Ｖ Ｂ－ Ｉｇ Ｍ） 、免疫组化法测定 Ｔ 细胞亚群和［３ Ｈ］ － Ｔｄ Ｒ 标记法测定 Ｎ Ｋ 细胞活性。结果　①哮喘患儿 Ｃ Ｖ Ｂ 感染率为５７８ ％ （５９／１０２） ;②哮喘患儿 Ｃ Ｄ８ 显著升高; Ｃ Ｄ３ 、 Ｃ Ｄ４／ Ｃ Ｄ８ 及 Ｎ Ｋ 细胞活性均明显下降（ Ｐ ＜００１） ;而 Ｃ Ｖ Ｂ 阳性哮喘患儿 Ｎ Ｋ 细胞活性又低于非 Ｃ Ｖ Ｂ 阳性哮喘儿（ Ｐ ＜ ００５） , Ｃ Ｄ８ 明显高于非 Ｃ Ｖ Ｂ 阳性哮喘儿（ Ｐ ＜ ００１） 。结论　 Ｃ Ｖ Ｂ 感染与哮喘发作有密切关系。     

单纯性肥胖儿童血小板聚集反应的变化及其机理研究

目的探讨肥胖儿童血小板聚集反应的变化及其机理。方法采用二磷酸腺苷（ＡＤＰ）诱发体外血小板聚集及胆固醇亚组份沉淀法观测２２例７～１２岁高脂血症肥胖儿童血小板聚集率及１５１例肥胖儿童血清胆固醇各组份含量和比值。结果单纯性肥胖儿童血清总胆固醇（ＴＣ）和低密度脂蛋白胆固醇（ＬＤＬ－Ｃ）含量明显高于正常儿童（Ｐ＜００１）,而高密度脂蛋白胆固醇（ＨＤＬ２－Ｃ）含量和ＨＤＬ－Ｃ／ＴＣ、ＨＤＬ２－Ｃ／ＴＣ及ＨＤＬ２－Ｃ／ＨＤＬ－Ｃ比值显著低于正常儿童（Ｐ＜００５,Ｐ＜００１）。高脂血症肥胖儿童１秒与５秒时血小板聚集率较正常儿童和血脂不高的肥胖儿童显著升高（Ｐ＜００１）。结论高脂血症的肥胖儿童血小板聚集反应增强,似与其ＴＣ、ＬＤＬ－Ｃ增高及ＨＤＬ２－Ｃ含量下降有关     

大鼠缺氧缺血性脑损伤时血液和脑脊液中S-100、CK-BB、NSE、MBP水平变化的研究

目的　探讨大鼠缺氧缺血性脑损伤（ＨＩＢＤ） 时血液和脑脊液中Ｓ１００ 蛋白（Ｓ１００） 、磷酸肌酸激酶脑型同工酶（ＣＫＢＢ）、神经元特异性烯醇化酶（ＮＳＥ） 、髓鞘碱性蛋白（ＭＢＰ） 的水平变化。筛选其对ＨＩＢＤ 具有早期诊断价值的指标。方法　采用７ 日龄ＳＤ 大鼠缺氧缺血性脑损伤模型：乙醚吸入麻醉后,用４－０ 双线结扎右侧颈总动脉,恢复４ 小时后,在３７ ℃恒温低氧箱内,给予吸入８％ 氧气和９２ ％ 氮气混合气体２ 小时。用放射免疫法和琼脂糖凝胶电泳法对对照组、缺氧缺血后６、１２ 、２４ 、４８、７２ 、９６ 小时进行动态观测ＨＩＢＤ 后血液和脑脊液中Ｓ１００、ＣＫＢＢ、ＮＳＥ、ＭＢＰ水平的变化。结果　在ＨＩＢＤ后血液和脑脊液中Ｓ１００、ＣＫＢＢ、ＮＳＥ、ＭＢＰ水平都有升高,但各项指标升高的时间和幅度并不一致。与对照组比较,血液和脑脊液中Ｓ１００、ＣＫＢＢ、ＮＳＥ高峰出现较早,在２４ ～４８ 小时都有明显增加（Ｐ＜０－００１）,ＭＢＰ的水平在７２ 小时才有一定程度的增加（ Ｐ＜ ０－０５）,并且血液和脑脊液中Ｓ１００、ＣＫＢＢ、ＮＳＥ水平的变化具有较好相关性。结论　在ＨＩＢＤ时血液和脑脊液中Ｓ１００、ＣＫ     

罗钙全对肾病综合征患儿钙、磷及25-羟维生素D_3和甲状旁腺素水平的影响

目的探讨罗钙全（骨化三醇）短期口服冲击治疗对小儿肾病综合征（ＮＳ）的疗效。方法对１７例长期糖皮质激素（ＧＣ）治疗的ＮＳ患儿血钙、磷、碱性磷酸酶（ＡＬＰ）、骨碱性磷酸酶（ＢＡＬＰ）、２５－羟维生素Ｄ３［２５－（ＯＨ）Ｄ３］、甲状旁腺素（ＰＴＨ）水平进行了测定,并观察了罗钙全短期口服冲击治疗对上述指标的影响。结果ＮＳ患儿血钙偏低（Ｐ＜００１）,ＡＬＰ、ＢＡＬＰ、ＰＴＨ升高（Ｐ＜００１）,２５－（ＯＨ）Ｄ３下降（Ｐ＜００５）;经罗钙全治疗后血钙磷上升（Ｐ＜００１）,ＡＬＰ、ＢＡＬＰ下降（Ｐ＜００１）,ＰＴＨ水平降低（Ｐ＜００１）,２５－（ＯＨ）Ｄ３无明显变化（Ｐ＞００５）。结论罗钙全短期口服冲击治疗可有效地改善ＮＳ患儿钙磷代谢紊乱,抑制ＰＴＨ的异常过度分泌。     

新生儿窒息后心肌肌钙蛋白Ⅰ与心肌酶活性的时相变化及其意义

目的：探讨新生儿窒息后心肌肌钙蛋白Ⅰ(CTnⅠ)及心肌酶活性的时相变化。方法：化学发光法和全自动生化分析仪测定新生儿窒息组26例(轻度窒息16例，重度窒息10例)和对照组10例生后0 h，6 h，12 h，24 h，72 h，10 d血清CTnI水平、肌酸激酶(CK)、肌酸激酶心型同工酶(CK-MB)、乳酸脱氢酶(LDH)及天门冬酸氨基转移酶(AST)活性。结果：窒息组0 h血清CTnI水平，CK，CK-MB和LDH活性明显高于对照组，均P<0.01；其中CTnI峰值在12 h，48 h开始下降；CK活性峰值为6 h，而CK-MB活性于12～24 h达高峰，均于72 h后下降；LDH活性于12 h达高峰，AST活性则于6 h开始升高，24 h后降低。结论：窒息新生儿生后早期动态监测血清CTnI与心肌酶活性有助于及时诊断和治疗心肌损害。     

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目的探讨新生儿缺氧缺血性脑病(HIE)时血清肌酸激酶(CK)和心型同工酶(CK-MB)、脑型同工酶(CK-BB)的动态变化及其意义。方法对2004-05—2005-01的32例HIE患儿和30例正常新生儿分别在生后24h内、第3天、第7天采集股静脉血,测定血清中总CK、CK-MB及CK-BB。结果(1)HIE组血清CK、CK-MB、CK-BB水平均高于对照组(P<0.05)。HIE各组血清CK、CK-MB、CK-BB水平均随着病情加重而升高,生后24h内均达到峰值,第3天开始下降,第7天中度组CK、CK-MB、CK-BB降至正常水平,重度组CK、CK-MB、CK-BB仍明显高于对照组(P<0.01)。(2)中、重度HIE组血清CK、CK-MB与对照组和轻度HIE组比较有显著性差异(P<0.01)。轻度HIE组血清CK、CK-MB与对照组比较无统计学意义(P>0.05)。轻、中、重度HIE组血清CK-BB与对照组比较差异均显著(P<0.01)。结论(1)HIE血清中CK、CK-MB、CK-BB水平与HIE程度密切相关,HIE程度越重其水平越高。(2)血清CK、CK-MB、CK-BB是HIE患儿心、脑损伤的早期敏感指标,可作为对HIE的早期诊断、病情严重程度判定常用的指标;对临床进行干预治疗和早期估计预后具有重要的意义。     

轻度窒息新生儿动态心电图及心肌酶变化的临床研究

目的 探讨轻度窒息新生儿动态心电图（AECG）、心肌酶变化特点及其临床意义.方法 选取2011年6月至2013年8月我院新生儿科收治的轻度窒息新生儿为窒息组,同期选择本院分娩的30例健康新生儿为对照组,均于生后24h内行AECG检查,于出生18 ～24 h内抽取静脉血测定血清肌酸磷酸激酶（CK）、血清肌酸磷酸激酶同工酶（CK-MB）、血清乳酸脱氢酶（LDH）、血清谷草转氨酶（AST）、心肌肌钙蛋白（cTnI）.结果 窒息组（46例）与对照组（30例）新生儿AECG窦性心律指标（最慢心率、最快心率、平均心率）差异均无统计学意义（P＞0.05）;窒息组ST段改变及心律失常等其他几项综合指标（包括房早、房速、室早、Q-T间期延长、交界性逸搏）异常发生率高于对照组（65.2％比16.7％,89.1％比13.3％,P均＜0.01）.窒息组心肌酶指标及cTnI值均高于对照组[CK（604.7±275.4）比（162.0±95.1）,CK-MB（87.9±61.0）比（28.3±27.1）,LDH（686.0±383.5）比（310.7±133.5）,AST （95.0±63.1）比（35.2±13.9）,cTnI（0.12±0.11）比（0.02±0.01）,P均＜0.01].窒息组CK、CK-MB、LDH、AST异常发生率高于对照组（63.0％比16.7％,82.6％比6.7％,95.7％比20.0％,32.6％比6.7％,P均＜0.01）.结论 轻度窒息新生儿AECG监测可发现各种心律失常、ST段改变,其心肌酶亦明显高于正常新生儿,ST段改变及CK-MB的升高是诊断轻度窒息新生儿心肌损伤的可靠依据.     

Myocardial ischemia induced by nebulized fenoterol for severe childhood asthma

We examined for myocardial ischemia induced by continuous inhalation of fenoterol in children with severe acute asthma. Thirty children with severe acute asthma were evaluated for signs of myocardial ischemia when treated with 0.5 mg kg dose (maximum 15 mg) of inhaled fenoterol for one hour. The heart rate was measured before and after inhalation. Cardiac enzymes (creatine kinase, creatine kinase MB fraction and troponin levels) were measured at admission and 12 hours later. An EKG was recorded before inhalation was started and immediately after its completion to detect the presence of any evidence of myocardial ischemia. All patients developed significant increase in heart rate. Six patients showed EKG changes compatible with myocardial ischemia, despite normal enzyme levels. Patients with severe acute asthma show tachycardia and may show EKG changes of myocardial ischemia.     

Evaluation of lung pathology in an experimental model of tracheal foreign body.

AIM: This experimental study was undertaken to evaluate the pathological changes caused by foreign body aspiration (FBA) on the lungs. MATERIAL AND METHODS: The study was performed on 19 Wistar albino rats. The rats in the control group (n = 5) were not subjected to any procedures. The rats in the sham group (n = 5) underwent tracheostomy, and a feeding tube was inserted into each rat. In nine rats in Group 1 (the study group), small lead marbles were placed into their trachea in addition to the procedures applied in the sham group. Lung tomography was performed on all the rats. The lungs, heart, and trachea were removed en bloc under ketamine hydrochloride anesthesia and fixed in 10 % formalin solution at the end of one week. The lung tissues were examined for FB, perivascular and peribronchial inflammatory cell infiltration, intra-alveolar bleeding, and post-obstructive emphysema. RESULTS: Tomography revealed FB in 4 rats and pathological evaluation showed FB in 7 rats. All the rats in Group 1 had peribronchial inflammation, while 7 rats (77.8 %) had perivascular inflammation. The sham and control groups were collectively referred to as Group 2 because of statistically similar findings. Group 1 and Group 2 significantly differed with respect to the findings of perivascular and peribronchial inflammation, intra-alveolar hemorrhage, and emphysema (p < 0.05). In Group 1, inflammation was detected in the opposite lobe of the lungs, although there was no FB. CONCLUSION: The presence of inflammation in the opposite lobe of the lungs where no FB was placed and in even those rats that expectorated the FB suggests that FBA is not a local pathology but a general pathology inducing inflammation in the whole lung. Thus, urgent removal of a foreign body is vital.     

Tracheostomy in childhood: 20 years experience from a pediatric surgery clinic

BACKGROUND: There is a limited indication for tracheostomy procedures in pediatric surgery. It is rarely applied to the pediatric patient because they can be kept intubated for a longer duration compared with adults. Problems and complications can occur after tracheostomy, even during the childhood period. PURPOSE: The purpose of this study is to evaluate our experience with tracheostomy procedure. METHODS: Records of 17 children treated over a 20-year period (1978-99) were reviewed retrospectively in the aspects of indication, complication and mortality. RESULTS: There were 13 boys and four girls with a mean age 30.3 months (range: 1 week-13 years). Indications for tracheostomy were prolonged intubation (n = 5), subglottic stenosis (n = 3), general body trauma (n = 2), tracheomalasia (n = 2), tracheoesophageal cleft (n = 1), cervical tumor pressing trachea and larynx (n = 1), congenital myotonic dystrophy plus respiratory failure (n = 1), burn injury of trachea and esophagus (n = 1), and foreign body aspiration (n = 1). In the last decade the number of cases with tracheotomy increased due to the development of new intensive care units, the use of mechanical ventilation and the increasing number of patients needing prolonged ventilation support. In this group, tracheostomies were mainly performed electively. The overall complication rate was 29%. Mortality was 59% and there was one death related to the tracheostomy procedure. CONCLUSION: Tracheostomy is a life saving procedure when performed with an appropriate indication and surgical technique. Therefore, the pediatric surgeons dealing with this procedure should be aware of the tracheostomy care problems, fatal complications and the need for reconstructive surgery. With strict indications and experience of the procedure, this should be enough effort to minimize its complications and related care problems.     

重症脓毒症患儿血清肌酸激酶同工酶和肌钙蛋白Ⅰ水平与预后的相关性分析

Objective To investigate the incidence of myocardial injury in the critically ill septic childern,and the relationship between elevations of serum troponin Ⅰ (cTnⅠ), creatine kinase (CKMB) and the prognosis outcomes, including the incidence of myocardial injury ,mortality, acute physiology and chronic health Ⅱ (APACHE Ⅱ) score. To evaluate the significance of elevations of cTnⅠ, CKMB and APACHE Ⅱ in critically ill children with sepsis. Methods Children with severe sepsis hospitalized in ICU of Hunan Provincial Children′s Hospital from August 2009 to May 2010 were retrospectively collected as sepsis group and chidren without sepsis were chosen as control group. The levels of troponin Ⅰ, creatine kinase and APACHE Ⅱ score, myocardial injury, mortality and quality of life were measured. The levels of troponin Ⅰ, creatine kinase concentration and the duration were compared. Results Totally 656 children were enrolled into the study, including 459 in sepsis group(352 boys and 107 girls) and 197 in nonsepsis group(151 boys and 46 girls). Two hundred and five (44.7%) of the 459 critically ill children with sepsis showed elevated levels of cTnⅠ or/and CKMB.The levels of cTnⅠ, CKMB and APACHE Ⅱ score were positively correllated. Serum CKMB,cTnⅠ and APACHE Ⅱ scores were independent risk factors for predicting mortality of septic patients.The levels of CKMB and cTnⅠ in death group were significantly higher than in survival group. The levels of CKMB and cTnⅠ in high APACHE Ⅱscores（≥25） group were significantly higher than in low APACHE Ⅱ scores（＜25）group.The patients with high APACHE Ⅱ scores and high serum CKMB,cTnⅠ levels had shorter survival time. Conclusions The incidence of myocardial injury defined by elevated levels of cTnⅠ and CKMB is unexpectedly high and is associated with mortality. Continuous monitoring of serum cTnⅠ, CKMB concentration and APACHE Ⅱ score of children with sepsis, not only help to assess the condition of children, but also predict the prognosis of them.     

血液灌流对毒鼠强中毒患儿心肝肾的保护作用

目的探讨血液灌流(HP)对毒鼠强中毒患儿心肝肾功能的影响。方法毒鼠强中毒患儿45例按不同治疗方式分为HP组(26例)和非HP组(19例),HP组用HP装置,进行床边治疗,非HP组进行对症处理。测血清酶,比较治疗前后心肝肾功能。结果治疗前两组均有不同程度的心肝肾功能损害,两组无显著差异(P>0.05)。治疗后HP组心肝肾功能较非HP组患儿恢复好,两组有显著性差异(P<0.01)。结论早期HP对毒鼠强中毒患儿心肝肾功能具有保护作用。     

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??Unintentional injuries and acute poisoning are leading causes of disability and morality in children.The main type of unintentional injuries in children include falls??traffic accident??foreign body injury??drowning and acute poisoning. Severe patients often suffer from acute hypoxic-ischemic brain damage??which causes a series of neurological deficits??such as disorders of consciousness??physical and cognitive deficits??and dysphagia. Early rehabilitation is benefical for minimizing sequelae of the primary injury??preventing secondary injury and complications??promoting rapid rehabilitation and maximizing positive outcomes. The manegement of consciousness disturbance and various neurological dysfunction is the most important in early rehabilitation.     

左卡尼汀对柯萨奇A16型病毒感染手足口病的心肌保护作用

目的探讨左卡尼汀对柯萨奇病毒A16型感染所致手足口病(HFMD)的心肌保护作用及机制。方法 60例心肌酶谱异常的HFMD患儿随机分为左卡尼汀治疗组(左卡组)和1,6-二磷酸果糖治疗组(果糖组),每组30例,在抗病毒、退热等基础上分别给予左卡尼汀或果糖二磷酸钠治疗,并以同期体检的健康儿童30例为对照组。比较HFMD患儿治疗前后的心肌酶谱、丙二醛(MDA)、超氧化物岐化酶(SOD)、细胞凋亡因子sFas和sFasL的变化。结果两组HFMD患儿治疗有效性的差异无统计学意义(P0.05),仅果糖组1例进展为危重型。治疗前,左卡组和果糖组心肌酶谱、MDA、sFas、sFasL水平高于对照组(P0.05),SOD低于对照组(P0.05),但HFMD的两组间心肌酶谱、MDA、SOD、sFas、sFasL的差异无统计学意义(P0.05)。治疗后,左卡组和果糖组的心肌酶谱以及MDA、sFas、sFasL浓度均下降(P0.05),SOD水平增高(P0.05);治疗后除果糖组的CK高于对照组和左卡组,其余心肌酶指标及MDA、sFas、sFasl在两组间及与对照组的差异均无统计学意义(P0.05)。SOD水平与AST、LDH、CK、CK-MB呈负相关(r分别为-0.437、-0.364、-0.397、-0.519,P0.05),MDA水平与LDH、CK-MB呈正相关(r分别为0.382、0.411,P0.05)。结论左卡尼汀对柯萨奇病毒A16型感染所致HFMD有较好的心肌保护作用,可能与清除氧自由基和抑制心肌细胞凋亡有关。