Anesthesiologist Questions

local anesthesia

After my surgeries at the dentist I had a severe urinary retention. Doctors had to place a urinary catheter for 8 days. No infection was found in the blood and urinary tests.
I still have other surgeries to do but I don't want to go through the same nightmare. Is there a way to know what is the molecule in the anesthesia which caused me all that in order to avoid it?

N.B : I know that local anesthesia does not cause urinary retention and it is very rare. Unfortunatly, I am a rare case and I would like to know what is the solution for rare cases like me.

Please find attached the box of the local anesthesia that the dentist used

Important Information:
Symptoms: urinary retention, pain in the lower abdomen, bradycardia, tremor...
December 24, 2022: hospitalization for 24 hours. The dentist had used 5.1 ml of lidocaine 2% epinephrine 1:100,000 (the same product as in the photo).
March 8, 2022: hospitalization for 8 days. The dentist had administered 4 cartridges of lidocaine 2% epinephrine 1:100,000.

Female | 24 years old
Complaint duration: 08/03/2022

3 Answers

If you were administered norcotic pre, intra, or postoperatively, THAT is the most likely cause of urinary retention. The epinephrine in the local anesthetic could potentially cause short-term urinary retention, but it has a rather short duration of action.
You are correct in stating that local anesthetics do not cause urine retention. Were you given any other medications; did you take any other pain medications after the procedure? Opioids are the most common culpritsand can be found in many medications prescribed by doctors.
You are totally right. It’s extremely rare to get urinary retention from infiltration with a local anesthetic. It’s more common with Epidural or Spinal Anesthesia when local anesthetic blocks the nerves which send signals to the bladder. In my opinion, you experienced the reaction to
methylparaben. It’s a preservative in dental Xylocaine. That means that you can safely receive this local anesthetic without that preservative if you will have another surgical procedure. Just mention to the Surgeon that you had the complication from methylparaben in the Xylocaine vial.