Methodologic Comparison of Left Ventricular Stroke Volumes in the Early Neonatal Period by Echocardiography

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• 作者：Hiroyuki Nagasawa (1)
  Yoshinori Kohno (1)
  Yutaka Yamamoto (1)
  Masashi Kondo (1)
  Masami Sugawara (1)
  Toshinari Koyama (1)
  Daisuke Terazawa (1)
  Ryosuke Miura (1)
  
• 关键词：Left ventricle ; End ; diastolic volume ; End ; systolic volume ; Stroke volume ; Normal neonate ; Three ; dimensional echocardiography ; Comparison
• 刊名：Pediatric Cardiology
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：35
• 期：8
• 页码：1415-1420
• 全文大小：189 KB
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• 作者单位：Hiroyuki Nagasawa (1)
  Yoshinori Kohno (1)
  Yutaka Yamamoto (1)
  Masashi Kondo (1)
  Masami Sugawara (1)
  Toshinari Koyama (1)
  Daisuke Terazawa (1)
  Ryosuke Miura (1)
  
  1. Department of Neonatology, Gifu Prefectural General Medical Center, 4-6-1 Noisshiki, Gifu, 500-8717, Japan
  
• ISSN：1432-1971

文摘

Several methods for evaluating left ventricular stroke volume (SV) in neonates using echocardiography have been reported. However, no studies on methodologic comparison of SV with three-dimensional (3D) echocardiography are available. This is the first detailed report on a methodologic comparison of SV in the early neonatal period. The study group included 70 normal neonates (35 boys and 35 girls). An iE33 echocardiograph and Q-LAB supplied by Philips Electronics were used to examine and calculate volumes. Comparisons of SV were performed using Teichholz (T), the velocity time integral (VTI), Pombo (P), modified Simpson (MS), and 3D methods with normal neonates who had no persistent ductus arteriosus less than 7?days after birth. The mean SVs were 33.7?mL/m2 (T), 30.6?mL/m2 (VTI), 22.0?mL/m2 (P), 17.5?mL/m2 (3D), and 14.9?mL/m2 (MS) using Haycock’s formula of body surface area. The stroke volumes differed significantly depending on the different methods. The correlation coefficient was highest between the MS and 3D methods. The SVs of the T and VTI methods were significantly greater than those previously reported, and it seemed inappropriate to evaluate volumes in neonates. The 3D and MS methods were appropriate for measuring SV in neonates during the early neonatal period.