Safety and Outcomes of Capsule Endoscopy in Patients with Left Ventricular Assist Device: a Single-Center...

Area of Science:

• Gastroenterology
• Cardiology
• Medical Devices

Background:

• Obscure gastrointestinal bleeding (GIB) is a frequent complication in patients with continuous-flow left ventricular assist devices (CF-LVAD).
• Capsule endoscopy (CE) is a diagnostic tool for obscure GIB, but its safety and efficacy in CF-LVAD patients remain under investigation.
• This study retrospectively reviewed CE procedures in CF-LVAD patients to assess safety and outcomes.

Discussion:

• The study found no significant cardiac events during CE in CF-LVAD patients, indicating a favorable safety profile.
• Medical intervention was the primary management strategy following positive CE findings.
• Patients with active bleeding or arteriovenous malformations (AVMs) showed a trend towards higher rebleeding rates and need for further endoscopic procedures.

Key Insights:

• Capsule endoscopy is a safe diagnostic modality for obscure gastrointestinal bleeding in patients with continuous-flow left ventricular assist devices.
• Positive CE findings were observed in over half of the procedures performed.
• Arteriovenous malformations (AVMs) and active bleeding were associated with increased risk of rebleeding and transfusion, though not statistically significant.

Outlook:

• Further prospective studies are warranted to confirm the safety and efficacy of CE in CF-LVAD patients.
• Investigating strategies to mitigate rebleeding risk in high-risk subgroups, such as those with AVMs, is crucial.
• Optimizing diagnostic algorithms for obscure GIB in CF-LVAD patients may improve patient management and outcomes.