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NCT07034573: VENTI-MBOUO
Evaluation of a Ventilation-filtration System for Operating Rooms at the Protestant Hospital of Mbouo (VENTI-MBOUO)
trial testing context adapted air filtration system for operating theatre in Surgical Site Infections in 1 participant. Completed in 31 May 2024.
31 May 2024
Quick facts
| Lead sponsor | Christian Doll |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 1 |
| Start date | 29 May 2024 |
| Primary completion | 31 May 2024 |
| Estimated completion | 31 May 2024 |
| Sites | 1 location across Cameroon |
Drugs / interventions tested
- context adapted air filtration system for operating theatre
Conditions studied
- Surgical Site Infections — all drugs for Surgical Site Infections →
- Infections — all drugs for Infections →
Sponsor
Christian Doll
Who can join
Eligibility, any sex, with Surgical Site Infections or Infections. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
This research project is evaluating an air filtration system that is supposed to be adapted to the context, highly efficient and affordable. This air filtration system for operating theatres has been in use at Mbouo-Bandjoun hospital in Cameroon since 2019, with no incidents recorded to date. In this proposed research project, only the ventilation system will be tested technically and microbiologically; no research will be carried out directly on patients or with patient participation. Therefore, the research project is not expected to have any impact on patients. Technical test data will be evaluated retrospectively, while microbiological data will be collected prospectively without patient contact. The air filtration system was installed in the OT of the Protestant hospital Mbouo (Hôpital Protestant de Mbouo) in 2019. Before the installation of the air filtrations system, the OT used window-based ventilation which seems, besides wall-mounted air conditioning systems, quite common in OT in Cameroonian hospitals. The air filtrations system has been in regular use for 3.5 years before the first maintenance could be performed, due to COVID travel restrictions. This maintenance and technical measurement took place in November 2023. Microbial samples in the OT were collected in Mai 2024. The data of the maintenance and technical measurements of the air filtration system are retrospectively used for this study. The parameters that are extracted from the maintenance documents are: particle counts, temperature, humidity, air velocity and pressure differences at various measurement points inside and outside the OT as well as inside the air filtration device. To study the microbial burden in the OT, a prospective evaluation was carried out: In a time slot when no surgical procedures were planned, a passive sampling with settling plates was carried out.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
How to get cheap clean air? Implementation of an affordable high-efficient air filtration ventilation system for operating theatres in a low-resource setting.
Doll CL, Opalka R, Tchamo Nguifo L, Tamuedjoun Talom A, et al · · 2026 · PMID 41716972 · DOI 10.3205/dgkh000615
Verify or expand the search:
- PubMed search for NCT07034573
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
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- NCT06801275 — The Effect of Number of Showers With 4% Chlorhexidine Gluconate on Prevention of Surgical Site Infections · NA · active not recruiting
Other Christian Doll trials
Trials by the same sponsor.
- NCT05018884 — Surgical Site Infections at a West Cameroon Hospital · completed
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT07034573 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Christian Doll
- Last refreshed: 24 June 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT07034573.
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