Anyone had Tachycardia during or just after Herceptin?
 

Hi, I recently had a tachycardia episode (pulse 168) that lasted for perhaps an hour within a month of finishing herceptin. My troponin levels were 19,46, 45 during the 18 hours following.
I am having CT and ultrasound checks of my heart and seeing a cardiologist when the results are available.
But I wondered if anyone else has had any other arrhythmia problems, and what they know about it. It was quite scary, maybe nothing to do with cancer/treatment, or maybe it is, maybe will never happen again or perhaps it is linked to my ongoing fatigue. But I feel totally in the dark, and suspect there may be some helpful experiences/info that could explain it all.
I look forward to your help
Jessica

Re: Anyone had Tachycardia during or just after Herceptin?
 

I developed extreme tachycardia while taking Herceptin. It was Dx. As supra ventricular tachycardia and is controlled with beta blockers. My onc. Did not think it was from Herceptin.
Kathy T

Re: Anyone had Tachycardia during or just after Herceptin?
 

Kathy, did you have more than one episode? Do you know if you had raised troponin levels?

Re: Anyone had Tachycardia during or just after Herceptin?
 

Jessica, I had one episode,requiring an ED visit. Troponin levels were not checked. I was on a low dose beta blocker and would have occasional bouts of tachycardia which were controlled with an extra dose of the beta blocker. My dose is now higher and I've had no further problems. I've remained on Herceptin for 12 years as I am stage 4. My echos have been normal.
Kathy

Re: Anyone had Tachycardia during or just after Herceptin?
 

My heart rate went to about 148 and stayed there for several weeks. I was an in-patient at the hospital part of the time. It was believed to come from the blood clots (DVT & PE). I was referred to a cardiologist who found nothing wrong with my heart. Eventually it subsided. I was finishing TCH at the time and have continued on Herceptin only with no more episodes. I hope yours subsides soon.

Re: Anyone had Tachycardia during or just after Herceptin?
 

Hi thanks for your help. These heart things are scary. I am glad to hear you both ended the experience with heallthy hearts. Wishing you all the best.