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Dr. Andrew Rynne
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Dr. Andrew Rynne

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Exp 50 years

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What Causes Low Heart Beats During Cataract Surgery In Elders?

My mother (81 years old) had cataract surgery today (but not the question!) and as her heart rate was monitored I noticed that is went down to 45 bpm when she relaxed. She had thyroid cancer 50 years ago and is on levothyroxine 25 mcg. She isn't experiencing dizzyness or headaches. Is this something that I should be concerned about. She also has Alzheimers and is taking Aricept 10 mg.
Mon, 9 Jan 2017
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Cardiologist,  's  Response
Hi,

There are three potential reasons here. First she been hypothyroid, it's possible that the dose she is taking may be less for her, or due to stress of surgery her requirement might have increased. You should get one TSH done. Also get potassium levels.

You should discuss with opthalmologist, have they used any medicine like Timolol which decreases the heart rate, and third possibility, Aricept also has side effect of reducing heart rate, she must be on it since long. If she is not having any symptoms, then not to worry just monitor it and get the above test done.

Hope I have answered your query. Let me know if I can assist you further.

Regards,
Dr. Sagar Makode
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What Causes Low Heart Beats During Cataract Surgery In Elders?

Hi, There are three potential reasons here. First she been hypothyroid, it s possible that the dose she is taking may be less for her, or due to stress of surgery her requirement might have increased. You should get one TSH done. Also get potassium levels. You should discuss with opthalmologist, have they used any medicine like Timolol which decreases the heart rate, and third possibility, Aricept also has side effect of reducing heart rate, she must be on it since long. If she is not having any symptoms, then not to worry just monitor it and get the above test done. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Sagar Makode