MRSA Mycotic Aneurysm Associated with Infected Pacemaker Leads

Q: What is the clinical evidence from this study?

Study design: Case Report. Population: MRSA bacteremia and mycotic aneurysm (n=1). Intervention: AICD explant.

Q: What does this research mean for the field?

Infected automatic-implantable cardiac defibrillator (AICD) leads can cause persistent MRSA bacteremia leading to the development of a descending thoracic mycotic aneurysm, which can be identified using FDG-PET and CTA. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

ANTHONY WEINSTOCK; Tung To; Rashid Hamza; Devin Sakamoto; Luke Hsei; Kashyap Patel

doi:10.1016/j.idcr.2026.e02617

May 1, 2026IDCasesOpen Access

MRSA Mycotic Aneurysm Associated with Infected Pacemaker Leads

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Key result

FDG-PET and CTA detect a thoracic mycotic aneurysm in MRSA bacteremia with infected AICD leads.

n=1

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Key Points

This report highlights the relationship between MRSA bacteremia and the development of a mycotic aneurysm linked to cardiac devices.
Case examination of a 75-year-old woman with persistent MRSA bacteremia.
Identification of the mycotic aneurysm using FDG-PET and CTA imaging.
Assessment of the infection due to MRSA infected leads from an automatic-implantable cardiac defibrillator.
The patient was found to have a descending thoracic mycotic aneurysm as a complication of MRSA infection.
The aneurysm was effectively characterized through imaging techniques, confirming its association with underlying atherosclerosis.
The automatic-implantable cardiac defibrillator required explantation due to the infected leads.

Study Design

Type

Case Report (n=1)

Structured PICO

P

Population

75-year old woman with persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia, underlying atherosclerosis, and an automatic-implantable cardiac defibrillator (AICD)

I

Intervention

AICD explant and imaging (FDG-PET and CTA)

O

Outcome

Identification of descending thoracic mycotic aneurysm

Highlights a rare complication of descending thoracic mycotic aneurysm associated with MRSA bacteremia from infected AICD leads.

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Implication

May support targeted imaging in persistent MRSA bacteremia with infected AICD; hypothesis-generating for device-related complications.

Abstract

75-year old woman with persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia was found to have a descending thoracic mycotic aneurysm, initially identified on 2-deoxy-2-[F-18]fluoroglucose positron emission tomography (FDG-PET) and further characterized on computed tomographic angiography (CTA). Infection was related to a combination of underlying atherosclerosis and an automatic-implantable cardiac defibrillator (AICD) that required explant due to MRSA infected leads.

Discussion

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Cite This Study

WEINSTOCK et al. (2026) conducted a case report in MRSA bacteremia and mycotic aneurysm (n=1). AICD explant was evaluated. A 75-year-old woman with persistent MRSA bacteremia and infected AICD leads was diagnosed with a descending thoracic mycotic aneurysm using FDG-PET and CTA.

synapsesocial.com/papers/6a1538ebb5d9c58d83e8c956 https://doi.org/10.1016/j.idcr.2026.e02617

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MRSA Mycotic Aneurysm Associated with Infected Pacemaker Leads

Figures

Key Points

Study Design

Structured PICO

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

MRSA Mycotic Aneurysm Associated with Infected Pacemaker Leads

Figures

Key Points

Study Design

Structured PICO

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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