Effect of rapid thoracic compression on the cerebral blood flow‐velocity patterns of small infants

Roy Maynard; Mark C. Mammel; Keith K. Holloman; Sharon Porter; Stephen J. Boros

doi:10.1002/ppul.1950130411

Effect of rapid thoracic compression on the cerebral blood flow‐velocity patterns of small infants

Roy Maynard, Mark C. Mammel, Keith K. Holloman, Sharon Porter, Stephen J. Boros

Pediatrics - Administration

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Abstract

We measured the middle cerebral artery (MCA) flow‐velocities of 12 small infants (mean weight, 2,882 ± 602 g) before, during, and after the rapid thoracic compression (RTC) maneuvers of partial forced expiratory flow‐volume studies. Cerebral flow‐velocities were measured using transcranial Doppler ultrasonography. RTC increased MCA end diastolic flow‐velocities and Pourcelot indices of all infants (P < 0.001). These values returned to baseline immediately after the release of chest compression. We also measured the MCA flow‐velocities of several preterm infants during their normal daily activities. The changes in flow‐velocity patterns observed during normal daily life were similar to those observed during RTC. These findings demonstrate that RTC produces real, but likely not pathologic, changes in cerebral blood flow‐velocities. © 1992 Wiley‐Liss, Inc.

Original language	English (US)
Pages (from-to)	235-238
Number of pages	4
Journal	Pediatric pulmonology
Volume	13
Issue number	4
DOIs	https://doi.org/10.1002/ppul.1950130411
State	Published - Aug 1992

Keywords

Doppler ultrasonography
Partial forced expiratory flow‐volume curves
sneeze
yawn

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abstract = "We measured the middle cerebral artery (MCA) flow‐velocities of 12 small infants (mean weight, 2,882 ± 602 g) before, during, and after the rapid thoracic compression (RTC) maneuvers of partial forced expiratory flow‐volume studies. Cerebral flow‐velocities were measured using transcranial Doppler ultrasonography. RTC increased MCA end diastolic flow‐velocities and Pourcelot indices of all infants (P < 0.001). These values returned to baseline immediately after the release of chest compression. We also measured the MCA flow‐velocities of several preterm infants during their normal daily activities. The changes in flow‐velocity patterns observed during normal daily life were similar to those observed during RTC. These findings demonstrate that RTC produces real, but likely not pathologic, changes in cerebral blood flow‐velocities. {\textcopyright} 1992 Wiley‐Liss, Inc.",

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AU - Porter, Sharon

AU - Boros, Stephen J.

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Effect of rapid thoracic compression on the cerebral blood flow‐velocity patterns of small infants

Abstract

Keywords

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