Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials

Abstract Background The perioperative antibiotic prophylaxis with 1st or 2nd generation cephalosporins is evidence-based in orthopedic surgery. There are, however, situations with a high risk of prophylaxis-resistant surgical site infections (SSI). Methods We perform a superiority randomized control...

Full description

Bibliographic Details
Main Authors: Ilker Uçkay, Hagen Bomberg, Markus Risch, Daniel Müller, Michael Betz, Mazda Farshad
Format: Article
Language:English
Published: BMC 2024-01-01
Series:Trials
Subjects:
Online Access:https://doi.org/10.1186/s13063-023-07605-5
_version_ 1797349698535686144
author Ilker Uçkay
Hagen Bomberg
Markus Risch
Daniel Müller
Michael Betz
Mazda Farshad
author_facet Ilker Uçkay
Hagen Bomberg
Markus Risch
Daniel Müller
Michael Betz
Mazda Farshad
author_sort Ilker Uçkay
collection DOAJ
description Abstract Background The perioperative antibiotic prophylaxis with 1st or 2nd generation cephalosporins is evidence-based in orthopedic surgery. There are, however, situations with a high risk of prophylaxis-resistant surgical site infections (SSI). Methods We perform a superiority randomized controlled trial with a 10% margin and a power of 90% in favor of the broad-spectrum prophylaxis. We will randomize orthopedic interventions with a high risk for SSI due to selection of resistant pathogens (open fractures, surgery under therapeutic antibiotics, orthopedic tumor surgery, spine surgery with American Society of Anesthesiologists (ASA) score ≥ 3 points) in a prospective-alternating scheme (1:1, standard prophylaxis with cefuroxime versus a broad-spectrum prophylaxis of a combined single-shot of vancomycin 1 g and gentamicin 5 mg/kg parenterally). The primary outcome is “remission” at 6 weeks for most orthopedic surgeries or at 1 year for surgeries with implant. Secondary outcomes are the risk for prophylaxis-resistant SSI pathogens, revision surgery for any reason, change of antibiotic therapy during the treatment of infection, adverse events, and the postoperative healthcare-associated infections other than SSI within 6 weeks (e.g., urine infections or pneumonia). With event-free surgeries to 95% in the broad-spectrum versus 85% in the standard prophylaxis arm, we need 2 × 207 orthopedic surgeries. Discussion In selected patients with a high risk for infections due to selection of prophylaxis-resistant SSI, a broad-spectrum combination with vancomycin and gentamycin might prevent SSIs (and other postoperative infections) better than the prophylaxis with cefuroxime. Trial registration ClinicalTrial.gov NCT05502380. Registered on 12 August 2022. Protocol version: 2 (3 June 2022)
first_indexed 2024-03-08T12:34:09Z
format Article
id doaj.art-26644bfabe5c4aa3b3155b98679958fb
institution Directory Open Access Journal
issn 1745-6215
language English
last_indexed 2024-03-08T12:34:09Z
publishDate 2024-01-01
publisher BMC
record_format Article
series Trials
spelling doaj.art-26644bfabe5c4aa3b3155b98679958fb2024-01-21T12:33:51ZengBMCTrials1745-62152024-01-0125111110.1186/s13063-023-07605-5Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST TrialsIlker Uçkay0Hagen Bomberg1Markus Risch2Daniel Müller3Michael Betz4Mazda Farshad5Department of Orthopedic Surgery, Balgrist University Hospital, University of ZurichDepartment of Anesthesiology, Intensive Care and Pain Medicine, Balgrist University Hospital, University of ZurichDepartment of Anesthesiology, Intensive Care and Pain Medicine, Balgrist University Hospital, University of ZurichDepartment of Orthopedic Surgery, Balgrist University Hospital, University of ZurichDepartment of Orthopedic Surgery, Balgrist University Hospital, University of ZurichDepartment of Orthopedic Surgery, Balgrist University Hospital, University of ZurichAbstract Background The perioperative antibiotic prophylaxis with 1st or 2nd generation cephalosporins is evidence-based in orthopedic surgery. There are, however, situations with a high risk of prophylaxis-resistant surgical site infections (SSI). Methods We perform a superiority randomized controlled trial with a 10% margin and a power of 90% in favor of the broad-spectrum prophylaxis. We will randomize orthopedic interventions with a high risk for SSI due to selection of resistant pathogens (open fractures, surgery under therapeutic antibiotics, orthopedic tumor surgery, spine surgery with American Society of Anesthesiologists (ASA) score ≥ 3 points) in a prospective-alternating scheme (1:1, standard prophylaxis with cefuroxime versus a broad-spectrum prophylaxis of a combined single-shot of vancomycin 1 g and gentamicin 5 mg/kg parenterally). The primary outcome is “remission” at 6 weeks for most orthopedic surgeries or at 1 year for surgeries with implant. Secondary outcomes are the risk for prophylaxis-resistant SSI pathogens, revision surgery for any reason, change of antibiotic therapy during the treatment of infection, adverse events, and the postoperative healthcare-associated infections other than SSI within 6 weeks (e.g., urine infections or pneumonia). With event-free surgeries to 95% in the broad-spectrum versus 85% in the standard prophylaxis arm, we need 2 × 207 orthopedic surgeries. Discussion In selected patients with a high risk for infections due to selection of prophylaxis-resistant SSI, a broad-spectrum combination with vancomycin and gentamycin might prevent SSIs (and other postoperative infections) better than the prophylaxis with cefuroxime. Trial registration ClinicalTrial.gov NCT05502380. Registered on 12 August 2022. Protocol version: 2 (3 June 2022)https://doi.org/10.1186/s13063-023-07605-5Orthopedic surgeryBroad-spectrum antibiotic prophylaxisSurgical site infectionsPostoperative healthcare-associated infectionsRandomized-controlled trial
spellingShingle Ilker Uçkay
Hagen Bomberg
Markus Risch
Daniel Müller
Michael Betz
Mazda Farshad
Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
Trials
Orthopedic surgery
Broad-spectrum antibiotic prophylaxis
Surgical site infections
Postoperative healthcare-associated infections
Randomized-controlled trial
title Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
title_full Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
title_fullStr Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
title_full_unstemmed Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
title_short Broad-spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery—the prospective-randomized, microbiologist-blinded, stratified, superiority trials: BAPTIST Trials
title_sort broad spectrum antibiotic prophylaxis in tumor and infected orthopedic surgery the prospective randomized microbiologist blinded stratified superiority trials baptist trials
topic Orthopedic surgery
Broad-spectrum antibiotic prophylaxis
Surgical site infections
Postoperative healthcare-associated infections
Randomized-controlled trial
url https://doi.org/10.1186/s13063-023-07605-5
work_keys_str_mv AT ilkeruckay broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials
AT hagenbomberg broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials
AT markusrisch broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials
AT danielmuller broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials
AT michaelbetz broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials
AT mazdafarshad broadspectrumantibioticprophylaxisintumorandinfectedorthopedicsurgerytheprospectiverandomizedmicrobiologistblindedstratifiedsuperioritytrialsbaptisttrials