Heat moisture exchange filters

[John Ferguson]

[Lincoln Fowler]

Hi John
The product you attached is marked single use so it must be changed after every patient.
It seems that the issue remains however does the filter actually protect the whole circuit from contamination by microbes and hence successive patients?
Cheers

Lincoln Fowler
Infection Prevention Nurse Consultant

Bairnsdale Regional Health Service
http://www.brhs.com.au

Think Green, read it from the screen.

Bairnsdale Regional Health Service acknowledges the Gunaikurnai people as the traditional owners of the land on which the health service is located.
We recognise and respect their cultural heritage, beliefs and relationship with the lands. We pay our respects to elders both past and present and thank them for their contribution to the health service.

This communication is intended only to be read or used by the addressee. Information contained in this communication may be confidential information. If you are not the intended recipient, any use, interference with, distribution, disclosure or copying of this material is unauthorised and prohibited. The confidentiality attached to this communication is not waived or lost by reason of the mistaken delivery to you. If you have received this communication in error, please destroy it and send a reply message to the author.

Hi All

Our theatres use the HMEF attached which is not changed between patients over the day – it protects the proximal anaesthetic circuit from contamination and transfers the humidity from the circuit to the distal (patient) tubes.

We are aware that not all theatres across NSW use the hydrophobic filters that provide the necessary barrier and are concerned that the cheaper more porous electrostatic filters are often in use (and reuse). The issue is unpacked well here – https://www.apsf.org/newsletters/html/2011/fall/06_dearsirs.htm . This posting gives background
http://www.derangedphysiology.com/main/core-topics-intensive-care/mechanical-ventilation-0/Chapter%201.3.2/heat-and-moisture-exchange-filter-hme

There are no standards for ventilatory circuits specified in NSW Infection Control policy or by the ANZ College of Anaesthetists.

I would welcome your thoughts please . How can we get some proper national guidance out there?

Kind regards
John

A/Prof John Ferguson MBBS DTM&H FRACP FRCPA

Director | Infection Prevention Service, HNELHD
John Hunter Hospital, Locked Bag 1, Newcastle Mail Centre, NSW 2310, Australia
T: 61 2 49214444 | F: 61 2 49214440 | M: +61(0)428 885573 (Speed Dial 67607) | Tw @mdjkf

Follow http://www.aimed.net.au, the HNE Health/Pathology North site for practical discussions about antibiotic use.

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[Anonymous]

Hi all

We currently use a Pall Medical mechanical (pleated hydrophobic) filter on the expiration valve proximal to the machine that is changed daily and we use a Medtronic/Covidien electrostatic filter on the circle circuit closest to the patient, which is changed per patient. We change the circuit at the end of the list or end of the day.
However, I have similar concerns like Lincoln- does the filter actually protects the whole circuit.

Kind regards

Susan Jain

Clinical Nurse Consultant, CHESS, Conjoint Lecturer, UNSW
Level 2, High street
Prince of Wales Hospital, Randwick, NSW 2031
phone: 02 9382 1877 fax: 02 9382 2084 page:44241
E: susan.jain@health.nsw.gov.au

Hi John
The product you attached is marked single use so it must be changed after every patient.
It seems that the issue remains however does the filter actually protect the whole circuit from contamination by microbes and hence successive patients?
Cheers

Lincoln Fowler
Infection Prevention Nurse Consultant

Bairnsdale Regional Health Service
http://www.brhs.com.au

Think Green, read it from the screen.

Bairnsdale Regional Health Service acknowledges the Gunaikurnai people as the traditional owners of the land on which the health service is located.
We recognise and respect their cultural heritage, beliefs and relationship with the lands. We pay our respects to elders both past and present and thank them for their contribution to the health service.

This communication is intended only to be read or used by the addressee. Information contained in this communication may be confidential information. If you are not the intended recipient, any use, interference with, distribution, disclosure or copying of this material is unauthorised and prohibited. The confidentiality attached to this communication is not waived or lost by reason of the mistaken delivery to you. If you have received this communication in error, please destroy it and send a reply message to the author.

Hi All

Our theatres use the HMEF attached which is not changed between patients over the day – it protects the proximal anaesthetic circuit from contamination and transfers the humidity from the circuit to the distal (patient) tubes.

We are aware that not all theatres across NSW use the hydrophobic filters that provide the necessary barrier and are concerned that the cheaper more porous electrostatic filters are often in use (and reuse). The issue is unpacked well here – https://www.apsf.org/newsletters/html/2011/fall/06_dearsirs.htm . This posting gives background
http://www.derangedphysiology.com/main/core-topics-intensive-care/mechanical-ventilation-0/Chapter%201.3.2/heat-and-moisture-exchange-filter-hme

There are no standards for ventilatory circuits specified in NSW Infection Control policy or by the ANZ College of Anaesthetists.

I would welcome your thoughts please . How can we get some proper national guidance out there?

Kind regards
John

A/Prof John Ferguson MBBS DTM&H FRACP FRCPA

Director | Infection Prevention Service, HNELHD
John Hunter Hospital, Locked Bag 1, Newcastle Mail Centre, NSW 2310, Australia
T: 61 2 49214444 | F: 61 2 49214440 | M: +61(0)428 885573 (Speed Dial 67607) | Tw @mdjkf

Follow http://www.aimed.net.au, the HNE Health/Pathology North site for practical discussions about antibiotic use.

[http://www.health.nsw.gov.au/images/communications/e-signatures/images/NSW-Health-Master.jpg]

Unless explicitly attributed, the opinions expressed in this email are those of the author only and do not represent the official view of Hunter New England Local Health District nor the New South Wales Government.

MESSAGES POSTED TO THIS LIST ARE SOLELY THE OPINION OF THE AUTHOR, AND DO NOT REPRESENT THE OPINION OF ACIPC.

The use of trade/product/commercial brand names through the list is discouraged by ACIPC. If you wish to discuss specific reference to products or services by brand or commercial names, please do this outside the list.

Archive of all messages are available at http://aicalist.org.au/archives – registration and login required.

Replies to this message will be directed back to the list. To create a new message send an email to aicalist@aicalist.org.au

To send a message to the list administrator send an email to aicalist-request@aicalist.org.au.

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MESSAGES POSTED TO THIS LIST ARE SOLELY THE OPINION OF THE AUTHOR, AND DO NOT REPRESENT THE OPINION OF ACIPC.

The use of trade/product/commercial brand names through the list is discouraged by ACIPC. If you wish to discuss specific reference to products or services by brand or commercial names, please do this outside the list.

Archive of all messages are available at http://aicalist.org.au/archives – registration and login required.

Replies to this message will be directed back to the list. To create a new message send an email to aicalist@aicalist.org.au

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This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender.

Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health or any of its entities.

MESSAGES POSTED TO THIS LIST ARE SOLELY THE OPINION OF THE AUTHOR, AND DO NOT REPRESENT THE OPINION OF ACIPC.

The use of trade/product/commercial brand names through the list is discouraged by ACIPC. If you wish to discuss specific reference to products or services by brand or commercial names, please do this outside the list.

Archive of all messages are available at http://aicalist.org.au/archives – registration and login required.

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