PMEG
Also written as: PMEG — Physician Modified Endograft
Acronym for Physician Modified Endograft, a custom stent graft modified by the surgeon to fit specific patient anatomy.
Full Definition
PMEG (Physician Modified Endograft) refers to commercially available endografts that are modified by the operating surgeon to accommodate specific patient anatomical requirements not met by standard devices. These modifications may include fenestrations for branch vessel preservation, scallops for partial vessel coverage, or directional branches created using various techniques. PMEGs are typically used when custom-manufactured devices are not available or time constraints preclude their use. The practice requires specific training and expertise, and institutional approval processes vary. Documentation of modifications and outcomes is crucial for quality assurance and regulatory compliance.
Usage
Usage note: Relatively new terminology; spell out on first use and ensure institutional approval processes are mentioned when relevant.
In Context
- "Emergency repair was accomplished using a PMEG with hand-sewn fenestrations for renal vessels." — Case report
- "PMEG techniques have expanded treatment options for complex aortic pathology." — Technical innovation review