PH and Manometry Testing

Hi I'm looking for advice on testing for gastro/lpr issues please. I have a Vitatron G20A2 device fitted. Does anyone know if Ph and Manometry testing is safe for me to undergo. Obviously I would presume the hospital would check with device manufacturers but wanted a heads up from the group.  TIA


Ph and Manometry

by AgentX86 - 2023-01-28 00:30:59

I would highly doubt it but when you have any procedure remind them that you have an ICD. Do it nicely and don't make a bib deal out of it if they don't know (unless they run around hair on fire).

They'll know if it's important but always "trust and verify".

pH testing safety

by Gemita - 2023-01-28 05:07:24

Lizzie I see you asked this question in 2018.  Did you ever get an opinion from your device manufacturer or other professional at that time?

As far as I can see there could be interference to any capsule endoscopy final result for example, or with pacing itself during testing, so you will need an expert opinion for your individual circumstances, but generally pH testing by whichever means would appear to be safe with a CIED. 

You might like to browse the following links.  I have copied an extract on the "Safety" conclusions stated at the foot of the first link.  The second link, more current, appears to confirm the safety of these procedures too with a CIED.  The other links, well they just might help also!  

I haven’t had a pH impedance test with my pacemaker although I have had several complex endoscopy procedures to directly view and challenge the oesophagus and have had several dilatation procedures.   I always get an increase in my arrhythmias during endoscopy procedures, but these procedures are essential to keep us safe, aren’t they.

There are several ways to test acidity in the esophagus. Wireless esophageal pH testing is a more comfortable alternative to the 24-hour pH impedance test, which requires you to have the capsule wired through your nose to the recording device.

Safety (extract from first link)

There have been no reported complications caused by impedance monitoring. The contraindications for placement of transnasal instruments may include previous nasal surgery or trauma, coagulopathy, and the concurrent use of anticoagulants. The voltage generated by the transducer is limited to 8 μA of current, which is well below the threshold for cardiac stimulation.  Safety data on the use of impedance in patients with implantable cardiac defibrillators and pacemakers have not been reported, however.

You will need to copy and paste the links into your main browser to open:-

Ph and manometry testing

by lizzie - 2023-01-28 06:13:11

Hi gemita I forgot I posted this in 2018 and I did indeed email Medtronic and they said testing should not carry any safety risks. However,  luckily the gastric problem reduced to an extent I didn't require these tests at that time. Fast forward to present and a change of device from Medtronic to Vitatron (October 2020) and an exacerbation in gastro problems once again in 2022. I have emailed but have not received any reply. I was hoping for some reassurance from anyone who has had these sort of tests personally.  I will follow up on the advice you have given. Thank you.  Take care and stay well. 

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