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  • Herpes zoster...

Herpes zoster associated with higher long - term risk of a major cardiovascular event

Written By : Dr. Kamal Kant Kohli Published On 2022-11-24T10:30:23+05:30  |  Updated On 25 Nov 2022 12:07 PM IST
Herpes zoster associated with higher long - term risk of a major cardiovascular event
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Investigators at Brigham and Women's Hospital hy found in a new study that Herpes zoster associated with higher long‐term risk of a major cardiovascular event. Further herpes zoster is associated with an almost 30% higher long-term risk of a major cardiovascular event such a stroke or heart attack.

Their results are published in the Journal of the American Heart Association.

"Our findings suggest there are long-term implications of shingles and highlight the importance of public health efforts for prevention," said lead author Sharon Curhan, MD, ScM, a physician and epidemiologist in the Channing Division of Network Medicine at Brigham and Women's Hospital. "Given the growing number of Americans at risk for this painful and often disabling disease and the availability of an effective vaccine, shingles vaccination could provide a valuable opportunity to reduce the burden of shingles and reduce the risk of subsequent cardiovascular complications."

Shingles often causes a painful rash and can occur anywhere on the head or body. Shingles is caused by the varicella zoster virus, the same virus that causes chickenpox. After a person has chickenpox, the virus stays in their body for the rest of their life. Years and even decades later, the virus may reactivate as shingles. Almost all individuals aged 50 years and older in the US have been infected with the chicken pox virus and are therefore at risk for shingles.

Approximately 1 in 3 individuals will develop shingles in their lifetime, with more cases projected as the population ages and more people have compromised immunity due to disease or medication use.

The most common complication from shingles is postherpetic neuralgia. This condition affects nerve fibers and skin, causing burning pain that lasts long after the rash and blisters of shingles disappear. However, a growing body of evidence suggests that reactivation of the virus may have even longer lasting side effects. The virus may play a role in the development of cardiovascular disorders, including stroke and coronary artery disease. The virus has been detected in large and small blood vessels, which overtime can cause inflammation as well as chronic vascular changes. These changes can increase the risk of blockages in the blood vessels, restricted blood flow, and cardiovascular events such as strokes and heart attacks.

The prospective, longitudinal study followed three large U.S. cohorts of more than 200,000 women and men: the Nurses' Health Study (~79,000 women), the Nurses' Health Study II (~94,000 women) and the Health Professionals Follow-Up Study (~31,000 men). Participants did not have a prior history of stroke or coronary heart disease. The team collected information on shingles, stroke and coronary heart disease using questionnaires collected every two years and confirmed the diagnoses with medical record review. The team followed the participants for up to 16 years and evaluated whether those who had developed shingles were at higher risk for stroke or coronary heart disease years after the shingles episode.

The researchers tracked incidences of stroke and coronary heart disease-defined as having a non-fatal or fatal myocardial infarction (heart attack) or a coronary revascularization procedure (CABG, coronary artery bypass graft or percutaneous transluminal coronary angioplasty). Researchers also evaluated a combined outcome of cardiovascular disease, which included either stroke or coronary heart disease, whichever came first.

The results showed that people who had previously developed shingles were at 30% higher long-term risk of a major cardiovascular event compared with those who had not had shingles, and the elevated risk may persist for 12 years or more after having shingles.

Due to timing, much of the study took place in the period before the shingles vaccines became widely available. Even after their introduction, the uptake of vaccination has been generally low. Because of these limitations, researchers were not able to evaluate whether vaccination status may influence the association of shingles and long-term risk of a major cardiovascular event.

As more people choose to receive the shingles vaccine, future studies could examine whether vaccination influences the relation of shingles and risk of cardiovascular disease. Curhan adds, "We are currently collecting vaccination information among our participants and hope to conduct these studies in the future."

Reference:

Sharon G. Curhan, Kosuke Kawai, Barbara Yawn, Kathryn M. Rexrode, Eric B. Rimm and Gary C. Curhan Originally published16 Nov 202https://doi.org/10.1161/JAHA.122.027451 Journal of the American Heart Association. 2022;0:e02745

Journal of the American Heart AssociationShinglesstrokeheart attackshingles vaccinationvaricella zoster viruschickenpoxviruspostherpetic neuralgiacoronary artery diseaseherpes zoster
Source : Journal of the American Heart Association
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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