LYME CARDITIS SYMPTOMS MAY GO UNDIAGNOSED IN MEXICO
Lyme carditis symptoms can be a serious complication of Lyme disease. While the condition is well-recognized in the United States, officials in Mexico are reluctant to acknowledge Lyme disease in their country. In a letter entitled “Advanced AV-block: Is it time to consider Lyme carditis as a differential diagnosis in Mexico?” physicians describe the challenges of proving that a patient has Lyme carditis. 
However, the medical community in Mexico has been reluctant to acknowledge Lyme disease as a possible cause of the woman’s heart block. Officials argue “there is no convincing evidence that Borrelia burgdorferi is present in Mexico.”READ MORE: Which treatment guidelines should you follow for Lyme carditis?
Despite such resistance, Carrizales-Sepulveda and colleagues report “a seroprevalence of 6.2% for the Northeast region of Mexico and 3.4% for Mexico City, using a two-tier approach with enzyme-linked immunosorbent assay (ELISA) and western blot (WB) as recommended.”
Unfortunately, these results were dismissed as false positives, the authors write.
Furthermore, their Lyme carditis diagnosis was questioned with officials suggesting “the advanced AV-block that our patient presented had another cause that was not thoroughly investigated,” Carrizales-Sepulveda explains.
The authors recommend that Lyme carditis be considered as a possible diagnosis for patients living in Mexico.
“We agree that in our country other causes should be ruled-out first, however, there is no reason to leave out [Lyme carditis] as a diagnosis,” they write.
“[Lyme disease] in our country might be under looked, underdiagnosed, and underreported.”
- Carrizales-Sepulveda EF, Jimenez-Castillo RA, Vera-Pineda R. Advanced AV-block: Is it time to consider Lyme carditis as a differential diagnosis in Mexico? J Electrocardiol. 2020.
We are indebted to Dr. Lapenta, a South American doctor, who has written on Lyme in the Southern Hemisphere and numerous other issues with tick-borne illness. https://madisonarealymesupportgroup.com/2018/02/06/lyme-in-the-southern-hemisphere-sexual-transmission/
Thankfully, there is doctor training going on for tick-borne illness going on in South America.