Approximately half of all newborns with congenital heart disease are asymptomatic in the first few days of life. Early detection of ductal-dependant cardiac malformations prior to ductal closure is, however, of signif...Approximately half of all newborns with congenital heart disease are asymptomatic in the first few days of life. Early detection of ductal-dependant cardiac malformations prior to ductal closure is, however, of significant clinical importance, as the treatment outcome is related to the time of diagnosis. Pulse oximetry has been proposed for early detection of congenital heart disease. The aims of the present study were: 1) to determine the effectiveness of a pulse-oximetric screening performed on the first day of life for the detection of congenital heart disease in otherwise healthy newborns and 2) to determine if a pulse-oximetric screening combined with clinical examination is superior in the diagnosis of congenital heart disease to clinical examination alone. This is a prospective, multi-centre study. Postductal pulse oximetry was performed between six and twelve hours of age in all newborns of greater than 35 weeks gestation. If pulse-oximetry-measured arterial oxygen saturation was less than 95%, echocardiography was performed. Pulse oximetry was performed in 3,262 newborns. Twenty-four infants (0.7%) had repeated saturations of less than 95%. Of these infants, 17 had congenital heart disease and five of the remaining seven had persistent pulmonary hypertension. No infant with a ductal-dependant or cyanotic congenital heart disease exhibited saturation values greater or equal to 95%. Conclusion: postductal pulse-oximetric screening in the first few days of life is an effective means for detecting cyanotic congenital heart disease in otherwise healthy newborns.展开更多
目的探讨血氧灌注指数(PI)值在足月儿休克中的临床应用价值。方法选取2013年7月至2014年12月本院新生儿科收治的足月休克新生儿为观察对象,按新生儿休克评分分为轻度、中度、重度休克组,选取同期收治的足月高危新生儿为对照组。休克组...目的探讨血氧灌注指数(PI)值在足月儿休克中的临床应用价值。方法选取2013年7月至2014年12月本院新生儿科收治的足月休克新生儿为观察对象,按新生儿休克评分分为轻度、中度、重度休克组,选取同期收治的足月高危新生儿为对照组。休克组在诊断休克时以及治疗后24、48 h分别测定PI值,对照组在出生后2、24、48h分别测定PI值,比较各组PI值的变化。结果休克组48例,其中轻、中、重度休克分别为15、26、7例;对照组43例。轻、中、重度休克组和对照组新生儿在性别、胎龄、出生体重、分娩方式等方面差异均无统计学意义(P>0.05)。轻、中、重度休克组诊断休克时PI值[(1.06±0.12)、(0.69±0.17)、(0.15±0.06)]均低于对照组生后2 h PI值(3.82±0.75),差异有统计学意义(P<0.01)。轻、中、重度3组之间休克严重程度越重,P1值越低,差异有统计学意义(P<0.01)。治疗后24 h轻、中、重度休克组PI值[(1.89±0.49)、(1.48±0.47)、(0.98±0.29)]均较治疗前升高,差异有统计学意义(P<0.01),但仍低于对照组生后24 h PI值(3.85±1.01)差异有统计学意义(P<0.05)。治疗后48 h随休克的纠正,轻、中、重度休克组PI值明显升高[(3.02±0.93)、(3.05±0.85)、(3.02±0.72)]并逐渐趋于稳定,与对照组生后48 h PI值(3.88±0.80)比较差异无统计学意义(P>0.05)。结论足月儿休克时PI值明显下降,且休克程度越重PI值越低,治疗后PI值逐渐升高并趋于稳定。动态监测新生儿PI值有助于临床足月新生儿休克的诊断和治疗。展开更多
Objective To assess the possibility of using arterial pressure waveform or pulse oximetry plethysmographic waveform variation to estimate the pulmonary arterial wedge pressure (PAWP) Methods Fourteen American Socie...Objective To assess the possibility of using arterial pressure waveform or pulse oximetry plethysmographic waveform variation to estimate the pulmonary arterial wedge pressure (PAWP) Methods Fourteen American Society of Anesthesiologists grade Ⅰ-Ⅱ patients aged 33-69 years and weighing 62 0±9 5 kg scheduled for elective abdominal tumor surgery were studied Their hemoglobin exceeded 120 g/L and hematocrit exceeded 35% Pre operative acute hypervolemic hemodilution was applied immediately after general anesthestic induction and tracheal intubation PAWP, systolic pressure variation (SPV), delta down (dDown), SPV plet , dDown plet and other hemodynamic parameters were measured and recorded when total fluid volume (crystalloid and colloid) infused reached 10 ml/kg and 20 ml/kg and again at the end of the operation Central venous pressure was maintained at 10-12 mm Hg during operation Systolic blood pressure at the end of Valsalva maneuver (airway pressure was kept at 22 mm Hg) and the systolic pressure before the Valsalva manoeuvre during apnea were used to calculate arterial pressure ratio (APR) Results APR, SPV, dDown, SPV plet and dDown plet all correlated well with PAWP ( r =0 717, -0 695, -0 680, -0 522 and -0 624 respectively, P <0 01) There was a closer linear correlation between APR and PAWP than between the other parameters The regression equation was PAWP (mm Hg)=0 207×APR (%)-0 382 Conclusion During positive pressure mechanical ventilation, APR, SPV, dDown, SPV plet and dDown plet can be used to estimate PAWP effectively展开更多
文摘Approximately half of all newborns with congenital heart disease are asymptomatic in the first few days of life. Early detection of ductal-dependant cardiac malformations prior to ductal closure is, however, of significant clinical importance, as the treatment outcome is related to the time of diagnosis. Pulse oximetry has been proposed for early detection of congenital heart disease. The aims of the present study were: 1) to determine the effectiveness of a pulse-oximetric screening performed on the first day of life for the detection of congenital heart disease in otherwise healthy newborns and 2) to determine if a pulse-oximetric screening combined with clinical examination is superior in the diagnosis of congenital heart disease to clinical examination alone. This is a prospective, multi-centre study. Postductal pulse oximetry was performed between six and twelve hours of age in all newborns of greater than 35 weeks gestation. If pulse-oximetry-measured arterial oxygen saturation was less than 95%, echocardiography was performed. Pulse oximetry was performed in 3,262 newborns. Twenty-four infants (0.7%) had repeated saturations of less than 95%. Of these infants, 17 had congenital heart disease and five of the remaining seven had persistent pulmonary hypertension. No infant with a ductal-dependant or cyanotic congenital heart disease exhibited saturation values greater or equal to 95%. Conclusion: postductal pulse-oximetric screening in the first few days of life is an effective means for detecting cyanotic congenital heart disease in otherwise healthy newborns.
文摘目的探讨血氧灌注指数(PI)值在足月儿休克中的临床应用价值。方法选取2013年7月至2014年12月本院新生儿科收治的足月休克新生儿为观察对象,按新生儿休克评分分为轻度、中度、重度休克组,选取同期收治的足月高危新生儿为对照组。休克组在诊断休克时以及治疗后24、48 h分别测定PI值,对照组在出生后2、24、48h分别测定PI值,比较各组PI值的变化。结果休克组48例,其中轻、中、重度休克分别为15、26、7例;对照组43例。轻、中、重度休克组和对照组新生儿在性别、胎龄、出生体重、分娩方式等方面差异均无统计学意义(P>0.05)。轻、中、重度休克组诊断休克时PI值[(1.06±0.12)、(0.69±0.17)、(0.15±0.06)]均低于对照组生后2 h PI值(3.82±0.75),差异有统计学意义(P<0.01)。轻、中、重度3组之间休克严重程度越重,P1值越低,差异有统计学意义(P<0.01)。治疗后24 h轻、中、重度休克组PI值[(1.89±0.49)、(1.48±0.47)、(0.98±0.29)]均较治疗前升高,差异有统计学意义(P<0.01),但仍低于对照组生后24 h PI值(3.85±1.01)差异有统计学意义(P<0.05)。治疗后48 h随休克的纠正,轻、中、重度休克组PI值明显升高[(3.02±0.93)、(3.05±0.85)、(3.02±0.72)]并逐渐趋于稳定,与对照组生后48 h PI值(3.88±0.80)比较差异无统计学意义(P>0.05)。结论足月儿休克时PI值明显下降,且休克程度越重PI值越低,治疗后PI值逐渐升高并趋于稳定。动态监测新生儿PI值有助于临床足月新生儿休克的诊断和治疗。
文摘Objective To assess the possibility of using arterial pressure waveform or pulse oximetry plethysmographic waveform variation to estimate the pulmonary arterial wedge pressure (PAWP) Methods Fourteen American Society of Anesthesiologists grade Ⅰ-Ⅱ patients aged 33-69 years and weighing 62 0±9 5 kg scheduled for elective abdominal tumor surgery were studied Their hemoglobin exceeded 120 g/L and hematocrit exceeded 35% Pre operative acute hypervolemic hemodilution was applied immediately after general anesthestic induction and tracheal intubation PAWP, systolic pressure variation (SPV), delta down (dDown), SPV plet , dDown plet and other hemodynamic parameters were measured and recorded when total fluid volume (crystalloid and colloid) infused reached 10 ml/kg and 20 ml/kg and again at the end of the operation Central venous pressure was maintained at 10-12 mm Hg during operation Systolic blood pressure at the end of Valsalva maneuver (airway pressure was kept at 22 mm Hg) and the systolic pressure before the Valsalva manoeuvre during apnea were used to calculate arterial pressure ratio (APR) Results APR, SPV, dDown, SPV plet and dDown plet all correlated well with PAWP ( r =0 717, -0 695, -0 680, -0 522 and -0 624 respectively, P <0 01) There was a closer linear correlation between APR and PAWP than between the other parameters The regression equation was PAWP (mm Hg)=0 207×APR (%)-0 382 Conclusion During positive pressure mechanical ventilation, APR, SPV, dDown, SPV plet and dDown plet can be used to estimate PAWP effectively
