Trial reportOral and maxillofacial surgery2016
Assessment of hematologic parameters before and after bimaxillary orthognathic surgery.
Trial report in Oral and maxillofacial surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02364765 (Assessment of Changes of Hematological Parameters and Need for Blood Transfusion in Bimaxillary Orthognathic Surgery), which is not on this map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Assessment of Changes of Hematological Parameters and Need for Blood Transfusion in Bimaxillary Orthognathic Surgery
Who cites it
3 citing papers in PubMed.
- Factors influencing intraoperative blood loss in bimaxillary orthognathic surgery.Medicina oral, patologia oral y cirugia bucal · 2025Article
- Maxillary sinus haziness and facial swelling following suction drainage in the maxilla after orthognathic surgery.Maxillofacial plastic and reconstructive surgery · 2020Article
- Short-term Haematological Parameters Following Surgical Removal of Mandibular Third Molars with Different Doses of Methylprednisolone Compared with Placebo. A Randomized Controlled Trial.Journal of oral & maxillofacial researchArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of the study was to evaluate changes of hematologic parameters in bimaxillary surgery.
methodsFifty-three patients were prospectively evaluated and 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 the secondary outcome, and the patients' age and weight the other variables.
trial registrationNCT02364765 (U.S. National Institutes of Health, clinicaltrials.gov).
resultsThere was statistically significant difference between all hematologic parameters before and after surgery, for both men and women, and for all surgical groups. There was a positive correlation between operative time and the decrease (in %) of the hematologic parameters. Linear regression analysis suggested that the Hb values decrease 0.083 % for every minute increase in the operation time, and 0.066, 0.066, and 0.010 % for RBC, Hct, and platelet count, respectively. There was a negative correlation between weight and all hematologic parameters. Correlations between age and hematologic parameters were not statistically significant. Almost all correlations between age, weight, sex, and the surgery group and the hematologic parameters were considered as very weak. Only one patient was transfused.
conclusionsIt is suggested that operation time and patient's weight play a bigger role than patient's age and sex in the decrease of hematologic parameters after bimaxillary surgery.
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Registered trials
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