Operational challenges of positive pressure systems for radiation protection in medical facilities

Area of Science:

• Nuclear safety
• Hospital emergency preparedness
• Radiation protection

Background:

• Shelter-in-place (SIP) is crucial for vulnerable patients during nuclear disasters.
• Hospitals near nuclear sites in Japan use positive-pressure systems (PPS) for radiation protection.
• Existing protocols for SIP and PPS management in medical facilities are inadequate.

Purpose of the Study:

• To investigate challenges in implementing SIP during nuclear catastrophes.
• To assess the impact of SIP and PPS on essential clinical functions.
• To identify areas for improvement in hospital disaster preparedness.

Main Methods:

• A case study was conducted at Matsue Red Cross Hospital.
• Data collection involved participation in the hospital's Nuclear Disaster Countermeasures Committee.
• Analysis included meeting minutes, facility documents, and technical specifications.

Main Results:

• A conflict exists between PPS technical needs and clinical service continuity.
• Challenges include staff/patient presence in non-protected zones.
• Maintaining positive pressure, regulating indoor climate, and managing external radiation exposure near PPS units are critical issues.

Conclusions:

• Facilities with existing PPS require further investigation and countermeasure development.
• Future PPS installations need thorough discussion between government, hospitals, and installers.
• System design should prioritize minimizing impact on hospital functions.