Re: Endoscopy and HEPA filtration

31/08/2012 at 2:41 pm #69334 Quote

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Author:
Gerald Cha

Email:
Gerald.Chan@sjog.org.au

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Thanks Michael.
I’ll have a chat with our Engineering team on this as I was previously
informed that our “true” negative pressured procedural and isolation
areas dispersed the air through a separate exhaust system thus
minimising any potential risks to air re-circulation… thus, there
should be no difference in this new plan.
Will re-check though.
Thanks again.
Regards,
Gerald

Gerald Chan
Coordinator Infection Control

St John of God Murdoch Hospital
100 Murdoch Drive
MURDOCH. WA 6150

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>>> Michael Wishart 31/08/2012 11:27 AM
>>>

Hi Gerard
If you are including negative pressure you should really have HEPA
filters on the EXHAUST side of the room air handling, before circulation
through the rest of the building. Not on air inlets. This is to minimise
risk of dispersal of TB through the air handling system, which is a real
possibility. The engineers may be factoring this in as part of negative
pressure, but you should probably check.
Cheers
Michael

Michael Wishart
CNC Infection Control
Holy Spirit Northside Private Hospital
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Behalf Of Gerald Chan

Oh yes, Michael…

We’ve factored in negative pressure for the new room as we’ve seen a
rise in potential TB cases coming in for bronchoscopies in recent
times.

Cheers,

Gerald

Gerald Chan

Coordinator Infection Control

St John of God Murdoch Hospital
100 Murdoch Drive
MURDOCH. WA 6150

P: 9366 1552

M: 0405 495 906 (7804)
F: 9311 4685

E: Gerald.Chan@sjog.org.au

W: http://www.sjog.org.au/murdoch

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>>> Michael Wishart 31/08/2012 11:13 AM
>>>

Hi Gerard
Dont forget to factor in the usages of the room, both now and in the
foreseeable future. I think the facilities guidelines are assuming upper
and lower gastrointestinal endoscopy for the air handling
recommendation. If bronchoscopy is being performed, you should consider
the need for negative ventilation and HEPA filtration, as per Lesley
Lewis reply.
Cheers
Michael

Behalf Of Gerald Chan

Thanks, Glenys.

The links you’d forwarded have been most helpful.

We’re looking to build a new endoscopy room and HEPA filtration was
something that we didn’t see a need for, but we were informed by the
architects that new endoscopy rooms built these days factor that in and
they were convinced that it was a requirement.

Good to know that the filter efficiency requirements are “G4 – F8”, so
our stand remains.

Cheers,

Gerald

Gerald Chan

Coordinator Infection Control

St John of God Murdoch Hospital
100 Murdoch Drive
MURDOCH. WA 6150

P: 9366 1552

M: 0405 495 906 (7804)
F: 9311 4685

E: Gerald.Chan@sjog.org.au

W: http://www.sjog.org.au/murdoch

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>>> Glenys Harrington 30/08/2012 9:10 PM >>>

Hi Gerald,
Heap filters for the ventilation system in Endoscopy Units is not a
requirement in the Department of Human Services Victoria, Design
guidelines for hospitals and day procedure centres
http://www.healthdesign.com.au/vic.dghdp/
In the full version of the Guidelines see the table VENTILATION
REQUIREMENTS FOR AREAS AFFECTING PATIENT CARE HOSPITALS AND OUTPATIENT
FACILITIES in Part E – Building Services and Environmental Design
Enclosure E1a on page 47 and 48 link below
http://www.healthdesign.com.au/vic.dghdp/dghdp_content/guidelines/dghdp_design_guidelines_complete.pdf
Table states the following:
Endoscopy Unit – Filter efficiency – G4 – F8 2
Table Foot notes
2. Filtration Efficiency: First filter listed is the
prefilter if two filters are listed, second is the main filter and the
HEPA if listed is the final terminal filter
Is the concern or query related to laser plume?
regards
Glenys
Glenys Harrington
Consultant
Infection Control Consultancy (ICC)
PO Box 5202
Middle Park
Victoria, 3206
Australia
H: +61 3 96902216
M: +61 404 816 434
infexion@ozemail.com.au
ABN 47533508426

Behalf Of Gerald Chan

Dear all,

Are there any IC guidelines referring to the need for HEPA filtration
in Endoscopy procedure rooms?

Kind regards,

Gerald

Gerald Chan

Coordinator Infection Control

St John of God Murdoch Hospital
100 Murdoch Drive
MURDOCH. WA 6150

P: 9366 1552

M: 0405 495 906 (7804)
F: 9311 4685

E: Gerald.Chan@sjog.org.au

W: http://www.sjog.org.au/murdoch

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