People Who Need Antibiotics to Prevent Endocarditis

Overview

If you have certain heart conditions, you may need to take antibiotics before you have some dental or surgical procedures that could put bacteria or fungi into your blood. The antibiotics lower your risk of getting endocarditis.

These heart conditions include:

  • A repaired or replaced heart valve.
  • Endocarditis in the past.
  • Heart defects since birth (congenital heart defects).
  • Heart valve problems after a heart transplant.

Your doctor can tell you whether you need to take antibiotics. Before you have any medical, dental, or surgical procedures, tell all other health professionals who may treat you that you are at risk for endocarditis.

Your doctor can issue you a special card to carry in your wallet if you require preventive antibiotics before certain dental or surgical procedures. Your condition and specific antibiotic requirements are outlined on this card. The card is signed by your doctor.

Why not everyone should use antibiotics

Antibiotics are useful in minimizing the risk of endocarditis if you have certain heart conditions. But in order to protect your health, your doctor may not always recommend them. The medical community has several reasons for not advising all people with valve problems to take antibiotics:

  • Taking antibiotics may not be needed.
  • Taking antibiotics may be dangerous to your health if you are allergic to the drug.
  • Taking excessive antibiotics promotes the development of stronger, antibiotic-resistant bacteria that are harder to kill with currently available medicines.

Antibiotic resistance

Antibiotic resistance occurs when bacteria are able to resist drugs that were previously able to kill the bacteria. Antibiotic resistance is most common in situations that involve improper, unneeded, and incomplete use of prescription antibiotics. But resistance can also occur through correct antibiotic usage.

Antibiotic resistance is dangerous, because one type of bacteria can acquire the ability to survive certain drugs and then exchange this ability with other types of bacteria. When resistance to a particular medicine is widespread, the antibiotic becomes ineffective. Then scientists must find an adequate replacement. The only way for bacteria to develop resistance is through exposure to these antibiotics. So doctors try to use these drugs only when appropriate and necessary. This reduces the chances of resistance.

Always try to prevent antibiotic resistance. This can be done by:

  • Completing the course of drugs that you have been given. Antibiotics typically take several days to kill bacteria. If you take a partial course, you are teaching bacteria to survive the antibiotic.
  • Not stockpiling partial prescriptions and self-dosing with antibiotics.

Related Information

Credits

Current as of: February 9, 2022

Author: Healthwise Staff
Medical Review:
Rakesh K. Pai MD, FACC - Cardiology, Electrophysiology
Martin J. Gabica MD - Family Medicine
Elizabeth T. Russo MD - Internal Medicine
Adam Husney MD - Family Medicine
Robert A. Kloner MD, PhD - Cardiology

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