Lyme Carditis – When Lyme Affects Your Heart

There are many people that believe that Lyme is no big deal. It’s just a rash and flu-like symptoms. No worries. Why should they care.

Lyme can affect people in different ways; with different symptoms; and yes, it can cause death. There are three stages to Lyme: Acute Lyme, Early Disseminated and Late Disseminated. The bacteria, Borrelia burgdorferi (Bb), can affect any system in your body. Although Neurological Lyme is a big issue and more people now know about it, very few people know about Lyme carditis.

There is a doctor in Canada who has been trying to raise awareness of Lyme carditis for quite some time now. Dr. Adrian Baranchuk is a Professor at Queen’s University and a Clinician-scientist at Kingston General Hospital. He has written papers regarding the subject and has been interviewed numerous times. However, what he has been saying has, for the most part, fallen on deaf ears.

Lyme carditis is when Bb attacks the heart. According to the UPMC Heart and Vascular Institute, “The bacteria hinders your heart’s electrical system, as it enters the heart tissue and can interfere with electrical signals, causing a condition called heart block.” ( According to the CDC, “Between 1985 and 2019, eleven cases of fatal Lyme carditis were reported worldwide.” (

Dr. Baranchuk wrote a blog post for the Lyme Disease Association, Inc. in May of 2021 – – in which he notes that “Other cardiovascular manifestations include alterations of the ‘motor’ of the heart (sinus node disease) (3), a disorganization of the cardiac rhythm that increases the risk of stroke (atrial fibrillation) (2), lesion in the distal cables of the heart (bundle branch blocks) (4), and different degrees of inflammation of the layers of the cardiac walls (myocarditis, pericarditis, and endocarditis) (2).”

Dr. Baranchuk also notes in the blog entry that “Decision for permanent pacemaker implantation should wait until completion of antibiotics as heart block in LC is often reversible.” Unfortunately, very few doctors are aware of Lyme carditis and even more will not consider it as they don’t believe it is common.

Although Lyme carditis may not be as common as the erythema migrans rash, and some other more objective symptoms, I do believe it is much more common than known. For instance, since 2011, I have spoken to several people just in Nova Scotia whose hearts were affected by Bb. In some cases they received IV antibiotics and in others they received a pacemaker. In one case, a young gentleman received a pacemaker but a curious doctor started to ask questions due to his age and how his heart was affected. This resulted in testing for Lyme, which came back positive. Unfortunately, curious doctors seem to be few and far between these days, for a number of reasons.

If you are having light-headedness, fainting, shortness of breath, heart palpitations, and/or chest pain (CDC) and a specific cause has not been determined, please give Lyme carditis some consideration. If you spend any time outdoors or have pets that do, please raise the issue with your doctor. It is better to be safe, than sorry, and it is treatable.

The following articles/interviews regarding Lyme carditis should provide enough information to investigate further. There are many more documents regarding this issue so I don’t understand why it still seems like an unknown issue by many health care providers. Please educate yourself, and your medical team, if necessary:

I’m not trying to terrify people with the articles I write. I don’t want to keep people from going outside. I do, however, want people to take the issue more seriously and undertake appropriate preventative measures when heading outdoors and to make sure pets that go outside are checked carefully.

Stay safe!

Ticks Can be Active All Year – But Especially in the Spring and Fall

Due to the limited awareness/information campaign undertaken by Nova Scotia Health regarding risks associated with tick bites many people seem to think that they are only a problem in the spring and summer, if that. In Nova Scotia, and many other areas, temperatures allow for ticks to be active any month of the year. They have been found on people and pets in December, January and every other month when temperatures rise above freezing.

With this being the time of year where people are putting their yards to bed for the winter; hiking to see the beautiful fall foliage; hunting; and just enjoying the outdoors prior to the winter months; appropriate tick bite prevention measures need to still be undertaken. There are a lot of things you can do to help prevent a tick bite, but here are a few easy ones:

  • tuck your pants into your socks and your shirt into your pants to extend time for you to check for ticks before they find skin;
  • wear light coloured clothing to ensure that you will see any crawling ticks before they reach your skin;
  • carry a lint roller or sticky tape with you to pick off any unattached ticks;
  • use permethrin treated clothing (available at Marks and on-line) and either DEET or Icaridin on your skin;
  • stay out of long grass;
  • don’t jump in leaf piles;
  • toss clothing into a hot dryer for 15 minutes when you get home to kill any hitchhiking ticks;
  • shower shortly after getting home to wash off any unattached ticks;
  • do a thorough tick check, especially in warm, moist areas;
  • if you find an attached tick, ensure that you remove it correctly – DON’T squeeze it’s body (here is a good tick removal video put out by the federal government –

Although we do not yet know how many confirmed/probable cases of Lyme there were in Nova Scotia in 2020, we do know that in 2019 there were 830 confirmed/probable cases, which was a substantial increase over the 454 cases in 2018. We also know that the confirmed/probable case numbers are not the actual annual number due to under-reporting, etc. Although there presently isn’t agreement as to how many cases are being missed annually in Canada, and Nova Scotia, it is agreed that cases are being missed. Therefore, the number of annual cases are no doubt much higher.

The following are two publications regarding how many cases we may be missing in Canada:

Whether we should multiply the case number by 2, 5, 10, or more, to get the actual number of cases, the annual numbers are higher than what is frequently quoted in the media, resulting in many not giving Lyme and Tick-borne diseases much thought. It is time to change that perception so that everyone undertakes appropriate preventative measures.

From the calls, emails, social media posts, etc., in 2020 and 2021, the number of people bitten by ticks has again increased.

Please take the issue seriously and do what you can to protect yourself from ticks. They are not going anywhere; they are going to increase; the number carrying diseases will no doubt continue to increase; so we need to learn to live with them, but have a healthy fear of them. Fresh air and sunshine is imperative for good health so we cannot stay in our homes afraid of ticks.

Stay safe!

Pharmacists Able to Prescribe a One Dose Prophylactic for Lyme

Nova Scotia is the latest of places where pharmacists are allowed to prescribe a one dose prophylactic upon a known tick bite, within 72 hours of the bite, and if there are no symptoms.

Unfortunately, many see this as a good news story, but I’m not so sure.

The following is a Canadian research document from 2019 regarding the single dose prophylactic- If I am reading this document correctly, the decision to provide this one dose prophylactic is based on limited, and outdated, data. The recommendation in the document is “Further high-quality studies are needed to confirm the results of this RCT with appropriate enrollment and follow-up of a validated outcome in a generalizable setting. Ideally this research would be conducted in Canada to inform Canadian clinical decision-making and policy making.”

So, why are we promoting it now? Before more studies/research is undertaken?

As well, there is information available that suggests this single dose prophylactic may only prevent a rash. However, it should be noted that only about 80% actually get a rash and of that 80% many don’t see it or don’t realize that there are other types of erythema migrans rashes. It’s not just a bull’s-eye rash. We also don’t know if it is effective for co-infections, of which there are many in Nova Scotia.

As well, apparently antibiotics can interfere with future Lyme testing, resulting in difficulty in getting diagnosed –

This topic is not new. In 2019, the following article was written by another Nova Scotia resident, with better credentials than I –

The use of this prophylactic has been used in other areas for quite some time now. The following is an article from Rhode Island – It’s interesting to note that it mentions that it is not 100% guaranteed to work and that people need to be aware of that. I’m not sure that this fact is being adequately communicated. I’m also not sure if any follow-up is being provided to ensure that people remain symptom free.

If this prophylactic treatment does not work, and subjective, rather than objective, symptoms appear, it may be very difficult to obtain a diagnosis as most doctors require visible, objective, symptoms prior to a diagnosis and treatment. Even some possible objective symptoms, such as bell’s palsy; swollen, inflamed joints; heart block; etc., are not always considered to potentially be the result of a tick bite, especially in areas newer to Lyme carrying ticks.

Another concern with this prophylactic treatment is that pharmacists need to see the tick and if the tick is taken in to the pharmacist it may be disposed of rather than tested for any pathogens. Although it appears that the only tick testing being undertaken in Canada at the moment is at Geneticks, which is a private lab and testing is for a fee, I highly recommend that people have ticks tested that were attached to a human, or pet, and were either removed incorrectly (body squeezed) or engorged. As there are a number of things that have been found in ticks (both blacklegged and dog) in the province, I suggest the full panel. This tests for a number of things, most, if not all, of which have been found in the province.

Please do your research prior to agreeing to the one dose prophylactic.