Jan 3, 2010
I have been on a boosted PI (Darunivir) for about 7 months having switched from Atripla. I have been getting some strange cardiac symptoms over the past year or so, mainly when I lie down and try to sleep (these are worse if I have been exercising). My heart seems to be beating in a strange rhythm and the odd extra beat. I have also been dizzy and short of breath when I run. I have never smoked and am a moderate drinker.
Is there any data on Truvada and cardiac toxicity? Truvada is the only remaining component of my original regime and I'm wondering if this could be causing the problem?
I'm considering dropping the Truvada element and just taking the boosted PI - the data from the Cape Town study seems to support boosted mono-therapy - again I wondered what you though about this?
I'm having an ECG and Echo tomorrow but these symptoms are so sporadic I don't know if either will pick anything up conclusively - perhaps a 24 tape would be better?. If there was something really wrong, would it show in these tests in the absence of the palpitation or arrhythmia?
Thanks again for your support
Response from Dr. Henry
Truvada so far has a very clean track record for cardiac problems. Many conditions can result to cardiac palpitations. A 24 hour Holter monitor is one of the preferred tests to correlate your symptoms with EKG tracings. Boosted PI monotherapy is still not generally recommended particularly for persons with long term treatment history--its cardiac safety has not been extensively evaluated. KH
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