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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can excessive anesthesia cause heart palpitations, heaviness and high heart rate?

Yesterday, I was at the dentist. I received 4 shots of Septocaine. After the fourth shot, I felt like I was passing out. My heart was racing, etc. I don't believe I ever lost consciousness, but I was unable to respond, feeling very "heavy," needing oxygen, etc. for 45 minutes. During this time, the dentist gave me an epipen (in case I was allergic to anything) and monitored my oxygen, pulse (around 100), and heartrate (which far exceeded my normal low level of around 100/60). Finally, they brought me to the ER where I came back around. I was diagnosed with a vasal response. Upon my research, I'm led to believe that my response was more due to receiving too much anesthesia. Opinion?
Thu, 28 Aug 2014
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Dentist 's  Response
Dear User,

Thanks for using health care magic.

You are right in saying that your side effects are due to excessive use of local anesthetic dose. With the use local anesthetics (includes septocaine) cardiac side effects are the most commonly encountered in general practice and they may occur to minimal possible dose but more frequently present in higher dose.

What they call vagal syncope is one of the cardiac side effects of local anesthetic and can occur in any individual irrespective of the prescribed dose.

All the symptoms you mentioned n your query "heart palpitations, heaviness and high heart rate" can present due to septocaine.

'Hope I have answered your query. If you have any further questions I will be happy to help".
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