What is the clinical evidence from this study?

Study design: Case Report. Population: Atrioventricular block during pregnancy (n=1). Intervention: Micra AV leadless pacemaker implantation. Primary outcome: Fetal absorbed radiation dose and clinical outcomes.

What does this research mean for the field?

Leadless pacemaker implantation is practically feasible and safe during pregnancy, resulting in fetal radiation exposure well below harmful thresholds when optimized radiation minimization strategies are applied. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Assess the safety and fetal radiation exposure of leadless pacemaker implantation during pregnancy.

June 11, 2026Heart Rhythm O2Open Access

Leadless Pacemaker Implantation During Pregnancy: Quantitative Assessment of Fetal Radiation Exposure

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Key result

Leadless pacemaker in pregnancy resolves symptoms and allows healthy delivery with ~1.4 mGy fetal radiation.

Why the study?

Use of leadless pacemakers during pregnancy remains very limited due to concerns related to radiation exposure.

Is leadless pacemaker implantation safe and feasible during pregnancy with respect to fetal radiation exposure?

Key Points

Assess the safety and fetal radiation exposure of leadless pacemaker implantation during pregnancy.
Described a clinical case of a 17-week pregnant patient with atrioventricular block.
Performed leadless pacemaker implantation with fluoroscopic guidance using radiation safety protocols.
Estimated fetal absorbed dose and maternal effective dose during the procedure.
Fetal absorbed dose was 1.4 mGy, below thresholds for deterministic effects.
Maternal effective dose was 15 mSv, indicating a low additional radiation risk.
Post-procedure follow-up confirmed complete symptom resolution and delivery of a healthy infant.

Study Design

Type

Case Report (n=1)

Structured PICO

Is leadless pacemaker implantation safe and feasible during pregnancy with respect to fetal radiation exposure?

Population

1 pregnant patient at 17 weeks gestation with symptomatic high-degree atrioventricular block who underwent leadless pacemaker implantation and was followed through delivery.

Intervention

Leadless pacemaker implantation under fluoroscopic guidance using optimized radiation safety protocols.

Outcome

Fetal absorbed radiation dose and clinical outcomes (symptom resolution, pregnancy continuation, and delivery).safety

Leadless pacemaker implantation during pregnancy is clinically feasible and associated with low fetal radiation exposure when optimized radiation minimization strategies are applied.

Discussion

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Implication

May support select use in symptomatic pregnant patients; leaves open need for prospective safety data.

Cite This Study

Abdrakhmanov et al. (2026) conducted a case report in Atrioventricular block during pregnancy (n=1). Micra AV leadless pacemaker implantation was evaluated on Fetal absorbed radiation dose and clinical outcomes. Leadless pacemaker implantation in a pregnant patient resulted in complete symptom resolution and delivery of a healthy infant, with an estimated fetal absorbed radiation dose of 1.4 mGy.

synapsesocial.com/papers/6a2a510680c8f91e7f39d6de https://doi.org/10.1016/j.hroo.2026.04.032

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Leadless Pacemaker Implantation During Pregnancy: Quantitative Assessment of Fetal Radiation Exposure

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Leadless Pacemaker Implantation During Pregnancy: Quantitative Assessment of Fetal Radiation Exposure

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

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