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Updated: May 3, 2026

Insertion, Maintenance, and Removal of the Percutaneous Dual Lumen Cannula Right Ventricular Assist Device

Insertion, Maintenance, and Removal of the Percutaneous Dual Lumen Cannula Right Ventricular Assist Device

Published on: July 20, 2022

Boston keratoprosthesis type 1 device leak.

Kinda Najem¹, Mikael Sebag², Mona Harissi-Dagher²

¹Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal, Hôpital Notre-Dame; Department of Ophthalmology, Université de Montréal, Montréal, Que..

Canadian Journal of Ophthalmology. Journal Canadien D'Ophtalmologie

|February 12, 2014

Summary

This summary is machine-generated.

A leak at the Boston keratoprosthesis (KPro) stem can cause hypotony and vision loss months after surgery. Early detection and collaborative management are crucial for treating this complication.

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Area of Science:

Ophthalmology
Ocular Surgery
Prosthetic Eye Implants

Background:

The Boston keratoprosthesis type 1 (KPro) is used for severe corneal blindness.
Complications following KPro implantation require ongoing investigation.

Observation:

A retrospective case series identified three patients who developed hypotony after Boston KPro type 1 implantation.
Leaks at the cornea-anterior front plate interface of the KPro were observed intraoperatively.

Findings:

The incidence of leaks was 2.7%, occurring a mean of 13.7 months postoperatively.
Hypotony led to uveitis, vitritis, and choroidal/retinal detachments, necessitating vitreoretinal surgery.
Mean BCVA decreased from 20/100 to 20/300 after the complication, with stabilized IOP at 10 mm Hg.

Implications:

Leaks near the KPro stem can manifest late, causing significant visual impairment.
Prompt diagnosis and multidisciplinary management are essential for addressing KPro-related hypotony.
This highlights the need for vigilance regarding KPro device integrity and potential complications.