Surgical Blood Loss
Conditions
Keywords
Maxillofacial Orthognathic Surgery, Hemoglobin, Red Blood Cells, Hematocrit, Blood Platelets, Body Weight, Operative Time, Age Groups, Gender
Brief summary
The purpose of the present study was to compare some hematologic parameters and operation time in patients who underwent esthetic bimaxillary surgery under hypotensive anesthesia.
Detailed description
Patients who underwent bimaxillary surgery were prospectively evaluated. Patients were divided into groups based on the surgical procedure and sex (predictor variables). Hemoglobin, red blood cells, hematocrit, and platelet were the primary outcome variables, operation time was the secondary outcome variable, and the patients' age and weight were the other variables.
Interventions
DRUGRemifentanil
Elective bimaxillary orthognathic surgery consisting of a unsegmented LeFort I osteotomy combined with a bilateral sagittal split osteotomy, under the influence of mean remifentanil administration of 0.3 mg/kg/hour
Sponsors
Federal University of Minas Gerais
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* All consecutive patients listed for elective bimaxillary osteotomies for orthognathic correction by one surgical team, and admitted from August 2010 until June 2012.
Exclusion criteria
* Patients who were having single maxillary osteotomies, Le Fort II and III osteotomies, those with general contraindications for extensive surgical intervention, syndromic patients, those with cleft palate, and those with general diseases or hematological disorders.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in hematologic parameters | From immediately before the surgery until 24 h after operation | Hemoglobin (g/dL), red blood cells (cells/mcL), hematocrit (volume %), platelet (cells/mcL) |
Countries
Brazil
Outcome results
None listed