目的 探讨湿化高流量鼻导管通气(HHFNC)联合枸橼酸咖啡因治疗早产儿呼吸暂停的临床疗效。方法 选取2016年1月—2017年12月我院收治的58例呼吸暂停的早产儿为研究对象,随机分为两组:HHFNC组和对照组,HHFNC组除采用枸橼酸咖啡因治疗方案外,联合HHFNC法进行治疗;对照组采取鼻导管吸氧联合枸橼酸咖啡因治疗。结果 HHFNC组较之对照组治疗早产儿呼吸暂停的总有效率更高,差异有统计学意义(P<0.05);HHFNC组较之对照组总用氧时间、无创辅助通气的时间减少,住院时间缩短,差异有统计学意义(P<0.05)。结论 湿化高流量鼻导管通气(HHFNC)联合枸橼酸咖啡因减少早产儿呼吸暂停的发生,改善早产儿呼吸状况。

目的 应用斑点追踪显像定量评价阻塞性睡眠呼吸暂停综合征患者的左心房功能,并进行对比研究。方法 OSAS患者60例,根据睡眠呼吸暂停低通气指数(AHI)分为3组,轻度组,中度组,重度组,每组20人;另选择20名健康正常人作为正常对照组。采用二维斑点追踪成像技术测量各组左心房相关应变参数:收缩期应变(Ss),舒张早期应变(Se),舒张晚期应变(Sa),左心房收缩期应变率(SRs),左心房舒张早期应变率(SRe),左心房舒张晚期应变率(SRa),分析并比较各组间参数的差异性。结果 随着疾病严重程度的增加Ss、SRs、Se、SRe呈逐渐减低的趋势,而Sa、SRa先升高后减低,差异有统计学意义(P<0.05)。结论 应用斑点追踪成像技术可在OSAS患者发生左心房重构前检测出心房功能的变化。

Objective The left atrial function of patients with obstructive sleep apnea syndrome was quantitatively evaluated by speckle tracing imaging and compared. Methods Sixty patients with OSAS were divided into three groups according to the sleep apnea hypopnea index(AHI),including the mild group, the moderate group and the severe group, with 20 patients in each group. Another 20 healthy people were selected as the normal control group. Left atrial correlation strain parameters:systolic strain(Ss), early diastolic strain(Se), late diastolic strain(Sa), left atrial systolic strain rate(SRs), early diastolic strain rate(SRe), left atrium left atrium late diastolic strain rate(SRa) were measured by two dimensional speckle tracking imaging technology, and the differences of parameters between groups were compared. Results With the increase of disease severity, Ss, SRs, Se and SRe showed a trend of gradual decrease, while Sa and SRa increased first and then decreased, and the difference was statistically significant(P<0.05). Conclusion Changes in atrial function may be detected in OSAS patients prior to left atrial remodeling using speckle tracking imaging.

目的 应用三维斑点追踪成像(3D-STI)技术评价睡眠呼吸暂停综合征患者左、右心室整体收缩功能。方法 OSAS患者60例,根据睡眠呼吸暂停低通气指数(AHI)分为3组,轻度组,中度组,重度组,每组20人;另选择20名健康正常人作为正常对照组。用三维斑点追踪成像技术测量各组左心室整体纵向应变(LVGLS)、圆周应变(LVGCS)、径向应变(LVGRS)、面积应变(LVGAS)以及右心室整体纵向应变(RVGLS)、圆周应变(RVGCS)、径向应变(RVGRS),并比较各组间参数的差异。结果 与轻度OSAS组比较,中、重度OSAS组LVGLS、LVGAS降低,差异有统计学意义(P<0.05);与中度OSAS组相比较,重度组LVGLS、LVGCS、LVGRS以及LVGAS均降低,差异有统计学意义(P<0.05);右心室部分应变参数变化早于左心室。结论 应用3D-STI技术能够在患者左心室射血分数(LVEF)发生改变之前发现早期左、右心室功能收缩障碍,为临床早期诊断及干预提供可靠的依据。

Objective To evaluate left and right ventricular systolic function of patients with obstructive sleep apnea syndrome (OSAS) by using three-dimensional speckle tracking imaging(3D-STI). Methods Sixty patients with OSAS were divided into three groups according to the sleep apnea hypopnea index (AHI), the mild group, the moderate group and the severe group, with 20 patients in each group. Another 20 healthy people were selected as the normal control group. The left ventricle global longitudinal strain (LVGLS), left ventricle global circumferential strain (LVGCS), left ventricle global radial strain (LVGRS), left ventricle global area strain (LVGAS) and right ventricle global longitudinal strain (RVGLS), right ventricle global circumferential strain (RVGCS) and right ventricle global radial strain (RVGRS) were measured by three-dimensional speckle tracking imaging technology, and the differences of parameters between groups were compared. Results Compared with mild OSAS group, LVGLS and LVGAS were decreased in moderate and severe OSAS groups, and the difference was statistically significant (P<0.05). Compared with the moderate OSAS group, LVGLS, LVGCS, LVGRS and LVGAS in the severe group all decreased, and the difference was statistically significant (P<0.05). Some of right ventricle strain parameters were earlier than that of left ventricle. Conclusion The application of 3D-STI technology can detect early left and right ventricular dysfunction before left ventricular ejection fraction(LVEF)changes, provide a reliable basis for early clinical diagnosis and intervention.

目的 评估湿化高流量鼻导管通气治疗早产儿呼吸暂停的效果。方法 选取2014年1月—2016年1月在我院新生儿科住院并诊断为呼吸暂停的早产儿64例,随机分为HHFNC组和NCPAP组各32例,2组在氨茶碱治疗失败后分别采用HHFNC和NCPAP 2种无创辅助呼吸支持。观察2组的治疗效果、无创通气时间、总用氧时间、1周内置管率及不良反应发生率。结果 HHFNC组和NCPAP组治疗早产儿呼吸暂停的有效率分别为90%和86%,差异无统计学意义(P＞0.05);2组在无创通气时间、总用氧时间及1周内置管率方面比较无统计学差异(P＞0.05);HHFNC组鼻损伤、喂养不耐受发生率低于NCPAP组,差异有统计学意义(P＜0.05),NEC和ROP发生率比较无统计学意义(P＞0.05)。结论 HHFNC治疗早产儿呼吸暂停的效果与NCPAP相仿,HHFNC可降低早产儿鼻损伤、喂养不耐受发生率,而且并未增加NEC和ROP发生率,临床更适用于早产儿呼吸暂停。

目的 探讨分析氨茶碱治疗早产儿呼吸暂停的临床疗效及其在治疗过程中所出现的不良事件。方法 选取2014年9—2016年3月广州市第一人民医院新生儿科接受住院治疗的胎龄＜34周,生后2 h内入住新生儿科的早产儿42例。随机分为对照组和氨茶碱组,对照组(20例)给予保暖、吸氧、补充能量、保持呼吸道通畅、物理刺激等对症治疗,不使用氨茶碱及其它改善呼吸的药物;氨茶碱组(22例)患儿除给予对照组治疗措施外,同时给予氨茶碱静脉滴注,首剂负荷量5 mg/kg,在20min内完成,12 h后以2～2.5 mg/kg维持量,每隔12 h一次。观察两组的疗效与不良影响。结果 ①两组患儿性别、出生胎龄、出生体重、产前孕母糖皮质激素的应用、受孕方式、分娩方式、多胎妊娠、5min Apgar评分、机械通气及CPAP辅助通气例数、低-中流量吸氧(箱内或头罩给氧)例数等方面差异均无统计学意义(P均＞0.05)。②与对照组相比,氨茶碱组早产儿呼吸暂停(AOP)发生的次数较少,AOP消失所需时间较短,差异均有统计学意义(P＜0.05)。③不良影响方面,氨茶碱组脑白质发育不良发生率(63.6%,14/22例)显著高于对照组(25%,5/20例),差异有统计学意义(P＜0.05);两组患儿在听力检查异常、喂养不耐受、血糖紊乱、血脂代谢紊乱、血红蛋白下降、电解质紊乱、出院时体重及住院时间等方面均无统计学意义(P均＞0.05)。④氨茶碱组视网膜发育不完全的发生率(40.9%,9/22例)明显高于对照组(15.0%,3/20例),但差异无统计学意义(P＞0.05)。结论 小剂量氨茶碱在防治AOP方面的作用是值得肯定的,但它有可能增加早产儿脑白质发育不良的风险与视网膜发育不完全的风险。

Objective To investigate the clinical efficacy and adverse effects of aminophylline in prevention of apnea of prematurity. Methods Forty-two infants with gestational age ＜34 weeks admitted to department of pediatrics, Guangzhou first people's hospital between Sep. 2014 and Mar. 2016 were randomly divided into 2 groups: control group and aminophylline group. Control group(n=20): 20 infants received warming, oxygen inhalation, supplement energy, maintain airway patency, physical stimulation, such as symptomatic treatment, without aminophylline or any other drugs for improving breathing. Aminophylline group(n=22): In addition to the control group treatment measures, 22 infants received a loading dose of 5 mg/kg of aminophylline and then maintained by a dose of 2mg/kg with intravenous drip q 12 h. Then we compared the efficacy and adverse effects of the two groups. Results ①There was no significant difference in gender, gestational age, birth weight, maternal antenatal glucocorticoid application, pregnancy(including multiple pregnancy) and delivery,5 min Apgar score, oxygen therapy, the application of mechanical ventilation, nasal continuous positive airway pressure, and the low-medium flow oxygen inhalation between the 2 groups(all P＞0.05). ② Compared with the control group, the incidence of apnea in aminophylline group were significant lower, and the time needed for apnea to disappear were significant shorter(all P＞0.05). ③ The incidence of cerebral white matter development dysplasia of aminophylline group(63.6%,14/22 cases) were significant higher than the control group(25%,5/20 cases, P＜0.05). There was no statistically significant difference in hearing loss, feeding intolerance, blood glucose disturbance, blood lipid metabolism disorder, hemoglobin decrease, electrolyte disorder, body weight at discharge, the duration and cost of hospitalization between the 2 groups(all P＞0.05). ④ The incidence of retinal incompleted development of aminophylline group(40.9%, 9/22 cases) were higher than control group(15.0%, 3/20 cases), but there was no statistical significance between the 2 groups(P＞0.05). Conclusion Effects of aminophylline in treating apnea of prematurity is positive, but it is likely to increase the risk of premature brain white matter development dysplasia and the risk of retinal incompleted development.

目的 探讨光疗对早产儿血浆β-内啡肽含量的影响及与早产儿呼吸暂停的相关性。方法 收集我院住院早产儿92例,检测早产儿光疗前、中、后的血浆β-内啡肽及血清电解质、血糖及pH值,并将光疗过程中出现呼吸暂停者纳入光疗呼吸暂停组28例,无呼吸暂停者纳入光疗非呼吸暂停组44例,并设非光疗无呼吸暂停早产儿为对照组20例,比较组间上述指标的差异。结果 各组早产儿的血清电解质、血糖、血液pH值在光疗前、中、后无变化,差异无统计学意义(P>0.05)。光疗呼吸暂停组的血浆β-内啡肽浓度在光疗前、中、后无变化,差异无统计学意义(P>0.05),光疗呼吸暂停组和非呼吸暂停组之间血浆β-内啡肽的浓度无变化,差异无统计学意义(P>0.05),光疗组与非光疗组β-内啡肽浓度无变化,差异也无统计学意义(P>0.05)。结论 早产儿光疗前后β-内啡肽浓度无变化,呼吸暂停与β-内啡肽含量无相关性。