ArticleBJS open2026
Impact of thromboprophylaxis timing and duration on thromboembolism and bleeding in metabolic bariatric surgery.
Article in BJS open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
backgroundPatients undergoing metabolic bariatric surgery are at risk of both venous thromboembolism (VTE) and bleeding complications, but the optimal thromboprophylaxis strategy remains uncertain. Therefore, this retrospective cohort study evaluated perioperative outcomes depending on the perioperative thromboprophylaxis strategy.
methodsThis study used data from the validated nationwide Scandinavian Obesity Surgery Registry, including all primary bariatric procedures in Sweden between 2008 and 2023. Exposures were timing of initiation (preoperative, postoperative, other) and the duration of thromboprophylaxis (< 7, 7-10, 11-14, or > 14 days). The primary outcome was VTE; secondary outcomes were intraoperative and postoperative bleeding. Outcomes were analysed using logistic regression models, adjusting for demographic, clinical, and surgical covariates.
resultsAmong 83 801 patients (76.9% female, mean age 40.9 years, mean body mass index 41.8 kg/m2), the incidences of VTE, intraoperative bleeding, and postoperative bleeding were 0.1% (76 patients), 0.7% (577), and 1.6% (1373), respectively. No statistically significant associations were observed between the timing of thromboprophylaxis and VTE, or between thromboprophylaxis duration and either VTE or postoperative bleeding. Initiation of prophylaxis after surgery was associated with a lower risk of intraoperative bleeding than preoperative initiation (odds ratio 0.52; 95% confidence interval 0.37 to 0.74). Risk factors for VTE included previous VTE, intraoperative bleeding, and longer operating time, whereas risk factors for postoperative bleeding included higher age, male sex, cardiovascular co-morbidity, and antidepressant use.
conclusionThe overall incidence of thrombotic complications after metabolic bariatric surgery was low, whereas bleeding events were more common. Compared with preoperative thromboprophylaxis initiation, postoperative initiation was associated with reduced intraoperative bleeding, whereas no increase in VTE was detected.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.