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Predictors of blood loss during orthognathic surgery: outcomes from a teaching institution

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Abstract

Purpose

The objective of the study was to correlate different orthognathic surgical procedures with operating time and blood loss, reported from an accredited resident training institution.

Methods

Ninety-five patient records were evaluated retrospectively. Individual blood volume, percent blood volume lost (BVL), and estimated blood loss (EBL) for each patient were recorded and correlated with operating time (OT). Statistics included independent t tests, one-way analysis of variance, and linear regression.

Results

The mean OT for all procedures was 203 min with mean blood loss 556 ml. Mean EBL for males was 676 ml versus 468 ml for females. Overall BVL was 12.4 %, while for males, BVL was 13.3 % compared to 11.8 % for females. For a single orthognathic procedure (n = 45), mean OT 145 min., EBL 414 ml, and BVL 9.0 %; two procedures (n = 41), mean OT was 239 min., EBL 659 ml, and BVL 15 %; three procedures (n = 9), mean OT 328 min, EBL 793 ml, and BVL was 17 %.

Conclusion

Examination of individual procedures suggests a shorter OT for Le Fort I procedures with slightly greater EBL. Concomitant orthognathic procedures are associated with greater OT and EBL. Blood volume should be calculated for male and female patients separately. Percent BVL can be predicted based on OT using a basic equation.

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Conflict of interest

Dr. Baur is a consultant for Novartis and Checkpoint Surgical LLC. Dr. Altay has provided consultancy for Checkpoint Surgical LLC in 2014. Other authors disclose no financial or personal relationships with other people or organizations. Initial findings of this study have been presented in the form of a poster at the annual meeting of the American Association of Oral and Maxillofacial Surgeons in 2008. There was no grant support for this study. All authors have viewed and agreed to the final form of the submission.

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Authors and Affiliations

  1. School of Dental Medicine, Department of Oral and Maxillofacial Surgery, Case Western Reserve University, Cleveland, OH, USA

    Keith M. Schneider, Isabel Atencio, Dale A. Baur & Faisal A. Quereshy

  2. Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Akdeniz University, Dumlupinar Boulevard 07058 Campus, Antalya, Turkey

    Mehmet Ali Altay

  3. School of Dental Medicine, Department of Community Dentistry, Case Western Reserve University, Cleveland, OH, USA

    Catherine Demko

Authors
  1. Keith M. Schneider
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  2. Mehmet Ali Altay
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  3. Catherine Demko
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  4. Isabel Atencio
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  5. Dale A. Baur
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  6. Faisal A. Quereshy
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Correspondence to Mehmet Ali Altay.

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Schneider, K.M., Altay, M.A., Demko, C. et al. Predictors of blood loss during orthognathic surgery: outcomes from a teaching institution. Oral Maxillofac Surg 19, 361–367 (2015). https://doi.org/10.1007/s10006-015-0503-8

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  • DOI: https://doi.org/10.1007/s10006-015-0503-8

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