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Evaluation of a Ventilation-filtration System for Operating Rooms at the Protestant Hospital of Mbouo (VENTI-MBOUO)

NCT07034573 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 1

Last updated 2026-05-08

No results posted yet for this study

Summary

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.

Conditions

Interventions

OTHER

context adapted air filtration system for operating theatre

This observational pilot study combines a retrospective design (technical data) and a prospective design (microbial data) to evaluate a new air filtration system adapted to the context. For this research, the technical data of the system concerning air velocity, temperature, etc. will be used retrospectively. Microbial sampling in the operating theatre will be carried out prospectively. No patient contact will take place.

Sponsors & Collaborators

  • Universite Evangelique du Cameroun

    collaborator OTHER

  • Paix et Santé - Gesundheit und Frieden global e.V.

    collaborator UNKNOWN

  • Christian Doll

    lead OTHER

Principal Investigators

  • Christian Doll, Dr. · Hessing Stiftung Orthopädische Fachkliniken

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-05-29
Primary Completion
2024-05-31
Completion
2024-05-31

Countries

  • Cameroon

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07034573 on ClinicalTrials.gov