S. Aureus TransmissionNCT04299737
Improving Case Selection for Perioperative S. Aureus Transmission Surveillance to Reduce Surgical Site Infections
An observational study of S. Aureus Transmission, run by Randy Loftus at 1 site in United States.
Trial summary
The first patient in the dyad will receive the bundle, which includes patient decolonization methods, environmental cleaning in the OR, a hand hygiene system located on the IV pole for the anesthesia provider, and intravascular catheter and syringe tip disinfection practices. Read more about this study
- Who is it for?
- Ages 18 to 120 yearsHealthy volunteers can take part
- Conditions the study is for
- S. Aureus Transmission
- What is being tested?
- Treatment Bundle (as defined below)
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- 9 Mar 2020to 1 Aug 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 120 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Patients scheduled to undergo oncologic gynecological and plastic surgery requiring general/regional anesthesia.
Who may be able to join
- Patients scheduled to undergo oncologic gynecological and plastic surgery requiring general/regional anesthesia.
- informed, written consent.
Who cannot join
- Patients <18 years of age.
- Patients scheduled to undergo procedures outside of the surgical service lines listed above.
- Patients not requiring general or regional anesthesia.
- Patients who have a documented allergy or have an allergic reaction to to iodine, shellfish, or chlorhexidine.
- Patients who have not provided informed, written consent.
Trial locations and contacts
1 site in 1 country.
About this study
The first patient in the dyad will receive the bundle, which includes patient decolonization methods, environmental cleaning in the OR, a hand hygiene system located on the IV pole for the anesthesia provider, and intravascular catheter and syringe tip disinfection practices. The second patient in the dyad will receive usual care. Both patients will be surveyed by obtaining swab samples at the beginning and end of the surgery using the OR PathTrac kits. The OR PathTrac software (RDB Bioinformatics, Omaha, NE 68154) uses algorithms to guide analysis of the S. aureus isolates and to identify transmission events. Transmission stories are processed by the software to generate transmission maps that identify improvement successes and failures. It also identifies actionable steps to improve the bundle. The perioperative infection control team then uses this information to continually optimize the bundle, and the software to measure the effect.
Read the detailed description
Surgical site infections increase patient morbidity and healthcare costs. The Centers for Disease Control and Prevention emphasizes improved basic preventive measures to reduce bacterial transmission and infections for patients undergoing surgery.
Patients undergoing planned oncologic gynecological and plastic surgery will be entered as dyads into a worksheet each day that will rank and select the optimal cases. The research assistants consent both patients in the dyad to the study while they are in the Day of Surgery Admissions area. The first patient in the dyad will receive the bundle, which includes patient decolonization methods, environmental cleaning in the OR, a hand hygiene system located on the IV pole for the anesthesia provider, and intravascular catheter and syringe tip disinfection practices. The second patient in the dyad will receive usual care. Both patients will be surveyed by obtaining swab samples at the beginning and end of the surgery using the OR PathTrac kits. The OR PathTrac kits are obtained from and analyzed for S. aureus isolates by RDB Bioinformatics. The OR PathTrac software (RDB Bioinformatics, Omaha, NE 68154) uses algorithms to guide analysis of the S. aureus isolates and to identify transmission events. Transmission stories are processed by the software to generate transmission maps that identify improvement successes and failures. It also identifies actionable steps to improve the bundle. The perioperative infection control team then uses this information to continually optimize the bundle, and the software to measure the effect.
- Conditions
- S. Aureus Transmission
- Being tested
- Treatment Bundle (as defined below)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Treatment Bundle (as defined below)Other
Patient decolonization within one hour of incision, improved environmental cleaning (frequency and quality, including but not limited to targeted use of no touch disinfection with UV-C treatment), provider hand hygiene leveraging proximity, improved catheter disinfection, and surveillance optimization.
| Study group | Role | What they receive |
|---|---|---|
| First patient in the case pair | This patient will receive the treatment bundle. S. aureus transmission surveillance will be conducted. Receives: Other: Treatment Bundle (as defined below) | |
| Second patient in the case pair | This patient will receive usual care. S. aureus transmission surveillance will be conducted. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time course in S. aureus transmission decline with the intervention.
- aureus transmission events by time.
Measured: Up to 52 weeks
Secondary outcomes (1)
Systematic selection of sequential cases in operating rooms for surveillance to reduce sample size and increase power.
The outcome is the proportional reduction in the necessary sample size of pairs of cases achieved by systematic selection of sample cases as compared with random selection.
Measured: Up to 52 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Mar 2020
- Study start9 Mar 2020
- Primary completion1 Aug 2021 (estimated)
- Study completion1 Aug 2021 (estimated)
Why it stopped: Due to the COVID-19 era, clinical research was interrupted, and this study was terminated.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (21)Papers the sponsor has linked to this study.
- Other trials for S. Aureus TransmissionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Randy Loftus
- Sponsor type
- University, hospital or other
- Collaborators
- RDB Bioinformatics
- Responsible party
- Sponsor-investigator, Randy Loftus, University of Iowa
- Investigators
- Randy W Loftus, MD, Principal investigator, University of Iowa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04299737
- Sponsor's protocol ID
- 201911589
- Status last verified
- Jul 2021
- First submitted
- 2 Mar 2020
- Last updated
- 12 Jul 2021
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Data will be shared upon written request and reviewed by the principal investigator for consideration.
Publications
Loftus RW, Brown JR, Koff MD, Reddy S, Heard SO, Patel HM, Fernandez PG, Beach ML, Corwin HL, Jensen JT, Kispert D, Huysman B, Dodds TM, Ruoff KL, Yeager MP. Multiple reservoirs contribute to intraoperative bacterial transmission. Anesth Analg. 2012 Jun;114(6):1236-48. doi: 10.1213/ANE.0b013e31824970a2. Epub 2012 Mar 30.
PubMed 22467892Dexter F, Ledolter J, Epstein RH, Loftus RW. Importance of operating room case scheduling on analyses of observed reductions in surgical site infections from the purchase and installation of capital equipment in operating rooms. Am J Infect Control. 2020 May;48(5):566-572. doi: 10.1016/j.ajic.2019.08.017. Epub 2019 Oct 19.
PubMed 31640892Dexter F, Epstein RH, Gostine AL, Penning DH, Loftus RW. Benefit of systematic selection of pairs of cases matched by surgical specialty for surveillance of bacterial transmission in operating rooms. Am J Infect Control. 2020 Jun;48(6):682-687. doi: 10.1016/j.ajic.2019.09.025. Epub 2019 Nov 1.
PubMed 31679749Loftus RW, Koff MD, Brown JR, Patel HM, Jensen JT, Reddy S, Ruoff KL, Heard SO, Yeager MP, Dodds TM. The epidemiology of Staphylococcus aureus transmission in the anesthesia work area. Anesth Analg. 2015 Apr;120(4):807-18. doi: 10.1213/ANE.0b013e3182a8c16a.
PubMed 24937345German RR, Lee LM, Horan JM, Milstein RL, Pertowski CA, Waller MN; Guidelines Working Group Centers for Disease Control and Prevention (CDC). Updated guidelines for evaluating public health surveillance systems: recommendations from the Guidelines Working Group. MMWR Recomm Rep. 2001 Jul 27;50(RR-13):1-35; quiz CE1-7.
PubMed 18634202Rubin RH. Surgical wound infection: epidemiology, pathogenesis, diagnosis and management. BMC Infect Dis. 2006 Nov 27;6:171. doi: 10.1186/1471-2334-6-171.
PubMed 17129369Stulberg JJ, Delaney CP, Neuhauser DV, Aron DC, Fu P, Koroukian SM. Adherence to surgical care improvement project measures and the association with postoperative infections. JAMA. 2010 Jun 23;303(24):2479-85. doi: 10.1001/jama.2010.841.
PubMed 20571014Wang H, Hong S, Liu Y, Duan Y, Yin H. High inspired oxygen versus low inspired oxygen for reducing surgical site infection: a meta-analysis. Int Wound J. 2017 Feb;14(1):46-52. doi: 10.1111/iwj.12548. Epub 2015 Dec 23.
PubMed 26695819Koff MD, Loftus RW, Burchman CC, Schwartzman JD, Read ME, Henry ES, Beach ML. Reduction in intraoperative bacterial contamination of peripheral intravenous tubing through the use of a novel device. Anesthesiology. 2009 May;110(5):978-85. doi: 10.1097/ALN.0b013e3181a06ec3.
PubMed 19352154Loftus RW, Brindeiro BS, Kispert DP, Patel HM, Koff MD, Jensen JT, Dodds TM, Yeager MP, Ruoff KL, Gallagher JD, Beach ML, Brown JR. Reduction in intraoperative bacterial contamination of peripheral intravenous tubing through the use of a passive catheter care system. Anesth Analg. 2012 Dec;115(6):1315-23. doi: 10.1213/ANE.0b013e31826d2aa4. Epub 2012 Nov 9.
PubMed 23144441Phillips M, Rosenberg A, Shopsin B, Cuff G, Skeete F, Foti A, Kraemer K, Inglima K, Press R, Bosco J. Preventing surgical site infections: a randomized, open-label trial of nasal mupirocin ointment and nasal povidone-iodine solution. Infect Control Hosp Epidemiol. 2014 Jul;35(7):826-32. doi: 10.1086/676872. Epub 2014 May 21.
PubMed 24915210Loftus RW, Dexter F, Robinson ADM. High-risk Staphylococcus aureus transmission in the operating room: A call for widespread improvements in perioperative hand hygiene and patient decolonization practices. Am J Infect Control. 2018 Oct;46(10):1134-1141. doi: 10.1016/j.ajic.2018.04.211. Epub 2018 Jun 12.
PubMed 29907449Robinson ADM, Dexter F, Renkor V, Reddy S, Loftus RW. Operating room PathTrac analysis of current intraoperative Staphylococcus aureus transmission dynamics. Am J Infect Control. 2019 Oct;47(10):1240-1247. doi: 10.1016/j.ajic.2019.03.028. Epub 2019 Apr 27.
PubMed 31036398Durkin MJ, Dicks KV, Baker AW, Lewis SS, Moehring RW, Chen LF, Sexton DJ, Anderson DJ. Seasonal Variation of Common Surgical Site Infections: Does Season Matter? Infect Control Hosp Epidemiol. 2015 Sep;36(9):1011-6. doi: 10.1017/ice.2015.121. Epub 2015 May 26.
PubMed 26008876Munoz-Price LS, Bowdle A, Johnston BL, Bearman G, Camins BC, Dellinger EP, Geisz-Everson MA, Holzmann-Pazgal G, Murthy R, Pegues D, Prielipp RC, Rubin ZA, Schaffzin J, Yokoe D, Birnbach DJ. Infection prevention in the operating room anesthesia work area. Infect Control Hosp Epidemiol. 2019 Jan;40(1):1-17. doi: 10.1017/ice.2018.303. Epub 2018 Dec 11. No abstract available.
PubMed 30526699
Study at a glance
From the registry record, last updated by the sponsor on 12 Jul 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Improving Case Selection for Perioperative S. Aureus Transmission Surveillance to Reduce Surgical Site Infections
- ClinicalTrials.gov ID
- NCT04299737
- Acronym / sponsor ID
- 201911589
- Conditions
- S. Aureus Transmission
- Study type
- Observational
- Recruitment status
- WithdrawnReason stopped: Due to the COVID-19 era, clinical research was interrupted, and this study was terminated.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Randy LoftusUniversity, hospital or other
- Collaborators
- RDB Bioinformatics
- Study start
- 9 Mar 2020 (actual)
- Primary completion
- 1 Aug 2021 (estimated)
- Study completion
- 1 Aug 2021 (estimated)
- First posted
- 9 Mar 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The first patient in the dyad will receive the bundle, which includes patient decolonization methods, environmental cleaning in the OR, a hand hygiene system located on the IV pole for the anesthesia provider, and intravascular catheter and syringe tip disinfection practices. The second patient in the dyad will receive usual care. Both patients will be surveyed by obtaining swab samples at the beginning and end of the surgery using the OR PathTrac kits. The OR PathTrac software (RDB Bioinformatics, Omaha, NE 68154) uses algorithms to guide analysis of the S. aureus isolates and to identify transmission events. Transmission stories are processed by the software to generate transmission maps that identify improvement successes and failures. It also identifies actionable steps to improve the bundle. The perioperative infection control team then uses this information to continually optimize the bundle, and the software to measure the effect.
Detailed description
Surgical site infections increase patient morbidity and healthcare costs. The Centers for Disease Control and Prevention emphasizes improved basic preventive measures to reduce bacterial transmission and infections for patients undergoing surgery.
Patients undergoing planned oncologic gynecological and plastic surgery will be entered as dyads into a worksheet each day that will rank and select the optimal cases. The research assistants consent both patients in the dyad to the study while they are in the Day of Surgery Admissions area. The first patient in the dyad will receive the bundle, which includes patient decolonization methods, environmental cleaning in the OR, a hand hygiene system located on the IV pole for the anesthesia provider, and intravascular catheter and syringe tip disinfection practices. The second patient in the dyad will receive usual care. Both patients will be surveyed by obtaining swab samples at the beginning and end of the surgery using the OR PathTrac kits. The OR PathTrac kits are obtained from and analyzed for S. aureus isolates by RDB Bioinformatics. The OR PathTrac software (RDB Bioinformatics, Omaha, NE 68154) uses algorithms to guide analysis of the S. aureus isolates and to identify transmission events. Transmission stories are processed by the software to generate transmission maps that identify improvement successes and failures. It also identifies actionable steps to improve the bundle. The perioperative infection control team then uses this information to continually optimize the bundle, and the software to measure the effect.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| First patient in the case pair | – | Other: Treatment Bundle (as defined below)This patient will receive the treatment bundle. S. aureus transmission surveillance will be conducted. |
| Second patient in the case pair | – | –This patient will receive usual care. S. aureus transmission surveillance will be conducted. |
Who may qualify
- Ages
- 18 to 120 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Patients scheduled to undergo oncologic gynecological and plastic surgery requiring general/regional anesthesia.
Key inclusion criteria (2 listed)
- Patients scheduled to undergo oncologic gynecological and plastic surgery requiring general/regional anesthesia.
- informed, written consent.
Key exclusion criteria (5 listed)
- Patients <18 years of age.
- Patients scheduled to undergo procedures outside of the surgical service lines listed above.
- Patients not requiring general or regional anesthesia.
- Patients who have a documented allergy or have an allergic reaction to to iodine, shellfish, or chlorhexidine.
- Patients who have not provided informed, written consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Treatment Bundle (as defined below)Patient decolonization within one hour of incision, improved environmental cleaning (frequency and quality, including but not limited to targeted use of no touch disinfection with UV-C treatment), provider hand hygiene leveraging proximity, improved catheter disinfection, and surveillance optimization. | Other | First patient in the case pair |
Primary outcome
Time course in S. aureus transmission decline with the intervention.
Time frame: Up to 52 weeks
S. aureus transmission events by time.
1 secondary outcome
Systematic selection of sequential cases in operating rooms for surveillance to reduce sample size and increase power.
Time frame: Up to 52 weeks
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jul 2021.
- Background: PubMed 22467892Loftus RW, Brown JR, Koff MD, Reddy S, Heard SO, Patel HM, Fernandez PG, Beach ML, Corwin HL, Jensen JT, Kispert D, Huysman B, Dodds TM, Ruoff KL, Yeager MP. Multiple reservoirs contribute to intraoperative bacterial transmission. Anesth Analg. 2012 Jun;114(6):1236-48. doi: 10.1213/ANE.0b013e31824970a2. Epub 2012 Mar 30.
- Background: PubMed 31640892Dexter F, Ledolter J, Epstein RH, Loftus RW. Importance of operating room case scheduling on analyses of observed reductions in surgical site infections from the purchase and installation of capital equipment in operating rooms. Am J Infect Control. 2020 May;48(5):566-572. doi: 10.1016/j.ajic.2019.08.017. Epub 2019 Oct 19.
- Background: PubMed 31679749Dexter F, Epstein RH, Gostine AL, Penning DH, Loftus RW. Benefit of systematic selection of pairs of cases matched by surgical specialty for surveillance of bacterial transmission in operating rooms. Am J Infect Control. 2020 Jun;48(6):682-687. doi: 10.1016/j.ajic.2019.09.025. Epub 2019 Nov 1.
- Background: PubMed 24937345Loftus RW, Koff MD, Brown JR, Patel HM, Jensen JT, Reddy S, Ruoff KL, Heard SO, Yeager MP, Dodds TM. The epidemiology of Staphylococcus aureus transmission in the anesthesia work area. Anesth Analg. 2015 Apr;120(4):807-18. doi: 10.1213/ANE.0b013e3182a8c16a.
- Background: PubMed 18634202German RR, Lee LM, Horan JM, Milstein RL, Pertowski CA, Waller MN; Guidelines Working Group Centers for Disease Control and Prevention (CDC). Updated guidelines for evaluating public health surveillance systems: recommendations from the Guidelines Working Group. MMWR Recomm Rep. 2001 Jul 27;50(RR-13):1-35; quiz CE1-7.
- Background: PubMed 17129369Rubin RH. Surgical wound infection: epidemiology, pathogenesis, diagnosis and management. BMC Infect Dis. 2006 Nov 27;6:171. doi: 10.1186/1471-2334-6-171.
- Background: PubMed 20571014Stulberg JJ, Delaney CP, Neuhauser DV, Aron DC, Fu P, Koroukian SM. Adherence to surgical care improvement project measures and the association with postoperative infections. JAMA. 2010 Jun 23;303(24):2479-85. doi: 10.1001/jama.2010.841.
- Background: PubMed 26695819Wang H, Hong S, Liu Y, Duan Y, Yin H. High inspired oxygen versus low inspired oxygen for reducing surgical site infection: a meta-analysis. Int Wound J. 2017 Feb;14(1):46-52. doi: 10.1111/iwj.12548. Epub 2015 Dec 23.
- Background: PubMed 19352154Koff MD, Loftus RW, Burchman CC, Schwartzman JD, Read ME, Henry ES, Beach ML. Reduction in intraoperative bacterial contamination of peripheral intravenous tubing through the use of a novel device. Anesthesiology. 2009 May;110(5):978-85. doi: 10.1097/ALN.0b013e3181a06ec3.
- Background: PubMed 23144441Loftus RW, Brindeiro BS, Kispert DP, Patel HM, Koff MD, Jensen JT, Dodds TM, Yeager MP, Ruoff KL, Gallagher JD, Beach ML, Brown JR. Reduction in intraoperative bacterial contamination of peripheral intravenous tubing through the use of a passive catheter care system. Anesth Analg. 2012 Dec;115(6):1315-23. doi: 10.1213/ANE.0b013e31826d2aa4. Epub 2012 Nov 9.
- Background: PubMed 24915210Phillips M, Rosenberg A, Shopsin B, Cuff G, Skeete F, Foti A, Kraemer K, Inglima K, Press R, Bosco J. Preventing surgical site infections: a randomized, open-label trial of nasal mupirocin ointment and nasal povidone-iodine solution. Infect Control Hosp Epidemiol. 2014 Jul;35(7):826-32. doi: 10.1086/676872. Epub 2014 May 21.
- Background: PubMed 29907449Loftus RW, Dexter F, Robinson ADM. High-risk Staphylococcus aureus transmission in the operating room: A call for widespread improvements in perioperative hand hygiene and patient decolonization practices. Am J Infect Control. 2018 Oct;46(10):1134-1141. doi: 10.1016/j.ajic.2018.04.211. Epub 2018 Jun 12.
- Individual participant dataSharing planned: Yes. Data will be shared upon written request and reviewed by the principal investigator for consideration.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Randy W Loftus, MD principal investigator
University of Iowa
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of S. Aureus Transmission, run by Randy Loftus at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 12 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time course in S. aureus transmission decline with the intervention. (time frame: Up to 52 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04299737, which also lists 21 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jul 2021.