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- W1505220409 abstract "Object Controlled hypotension is routinely used during open repair of craniosynostosis to decrease blood loss, although this benefit is unproven. In this study the authors analyzed the longitudinal relationships between intraoperative mean arterial pressure (MAP) and calculated blood loss (CBL) during frontoorbital advancement (FOA) for craniosynostosis. Methods The authors reviewed the records of infants with craniosynostosis who had undergone primary FOA between 1997 and 2009. Anesthesia records provided preoperative and serial intraoperative MAP. Interval measures of CBL had been determined during the course of the operation. The longitudinal relationships between MAP mean , MAP change , and CBL change were assessed over the same time interval and compared between adjacent time intervals to determine the directionality of associations. Results Ninety infants (44 males and 46 females) underwent FOA at a mean age and weight of 10.7 ± 12.9 months and 9.0 ± 7.0 kg, respectively. The average intraoperative MAP was 56.1 ± 4.8 mm Hg, 22.6 ± 12.1% lower than preoperative baseline. A negative correlation was found between CBL change and MAP mean over the same interval (r = −0.31, p < 0.05), and an inverse relationship was noted between CBL change of the previous interval and MAP change of the next interval (r = −0.07, p < 0.05). Finally, there was no significant association between MAP change of the previous interval and CBL change of the next interval. Conclusions Calculated blood loss demonstrated a negative correlation with MAP during FOA. Directionality testing indicated that MAP did not affect intraoperative blood loss; instead, blood loss drove changes in MAP. Overall, these findings challenge the benefit of controlled hypotension during open craniofacial repair." @default.
- W1505220409 created "2016-06-24" @default.
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- W1505220409 date "2012-05-01" @default.
- W1505220409 modified "2023-09-26" @default.
- W1505220409 title "Controlled hypotension and blood loss during frontoorbital advancement" @default.
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- W1505220409 doi "https://doi.org/10.3171/2012.1.peds11459" @default.
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