Dental and Medical Problems

Dent Med Probl
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Dental and Medical Problems

2015, vol. 52, nr 2, April-June, p. 144–149

Publication type: original article

Language: English

Creative Commons BY-NC-ND 3.0 Open Access

Relationship Between Blood Loss and Other Factors During Orthognathic Surgery

Związek między utratą krwi a innymi czynnikami podczas operacji ortognatycznych

Marcin Kozakiewicz1,A,C,E,F, Rafał Zieliński1,B,D

1 Department of Maxillofacial Surgery, Medical University of Lodz, Lodz, Poland

Abstract

Background. Bimaxillary orthognathic surgery may be complicated by excessive blood loss. What is of paramount importance for blood loss is operating time, segmentation of the maxilla, the expertise of the surgical team, the surgeon’s knowledge of anatomy.
Objectives. The aim of our study was to outline some factors which correlated with blood loss during orthognathic surgery.
Material and Methods. In our eighteen patients we ordered basic blood test and ionogram before and 1 day after the surgical procedure. In our statistic research we used ANOVA test, simple regression, polynominal regression as well as t-test.
Results. The mean operation time was 226.4 min (SD = 90.87; min time was 50 min, max 400 min) and the mean time of hospital residence was 6.81 days (SD = 1.88, min 3 days, max 12 days). In all the patients the average blood loss was 477 mL and varied from 50 mL to 1300 mL (SD = 282 mL). An average hemoglobin decrease was 1.38 ± 1.16 g/dL with the range from 0 to 3.9 g/dL per patient. A mean value of hematocrit (HCT) decrease was assessed at ± 3.81 ± 3.46% (min 0, max 11.3%). All these decreases were statistically significant.
Conclusion. As it proved in the present study it had the low rate of transfusion, severe bleeding that requires transfusion of allogenic blood has become the exception rather than the rule in orthognathic operations. All the investigated factors imply that there is no need to make routine blood transfusion even autotransfusion or any homotransfusion in orthognathic patients.

Key words

orthognathic surgery, blood loss, blood transfusion

Słowa kluczowe

chirurgia ortognatyczna, utrata krwi, transfuzja krwi

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