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Exoskeleton vs. Standard Lead Apron in EVAR Procedures

Radiation Exposure and Operator Musculoskeletal Strain in Endovascular Aortic Repair: a Randomized Trial of Exoskeleton vs. Standard Aprons

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07528144
Acronym
PROTECT-EVAR
Enrollment
2
Registered
2026-04-14
Start date
2025-11-03
Completion date
2027-06-17
Last updated
2026-08-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endovascular Aortic Repair, Musculoskeletal Strain, Occupational Radiation Exposure, Radiation Exposure to Operator

Keywords

EVAR, BEVAR, IBD-EVAR, Exoskeleton, Lead Apron, Occupational Safety, Ionizing Radiation, Vascular Surgeon, Ergonomics

Brief summary

The goal of this clinical trial is to learn whether an exoskeleton-supported radiation protection system can reduce radiation exposure and musculoskeletal strain in vascular surgeons during endovascular aortic repair procedures, compared with standard lead aprons. Researchers will compare procedures performed with exoskeleton-supported protection and procedures performed with standard lead aprons. Radiation exposure, physical strain, fatigue, and discomfort will be assessed during and after procedures.

Detailed description

This is a prospective, randomized, controlled crossover study evaluating an exoskeleton-supported radiation protection system versus standard lead aprons during complex endovascular aortic repair procedures. The study will be conducted at the Department of Vascular Surgery, University Clinical Hospital No. 2 in Szczecin, Pomeranian Medical University. Two vascular surgeons will participate in the study and perform a total of 60 procedures, including EVAR, IBD-EVAR, and BEVAR. Before each procedure, the type of radiation protection will be randomly assigned: a standard lead apron or an exoskeleton-supported protective system with visor. Each procedure will be performed in full with the assigned protection system, without switching during the intervention. Operator radiation exposure will be measured in real time using 3 personal dosimeters per operator. Musculoskeletal load will be assessed using shoulder load sensors. After each procedure, operators will complete standardized questionnaires evaluating fatigue and discomfort, including the Borg CR-10 scale, visual analog scale, and Nordic Questionnaire. The primary objective is to determine whether the exoskeleton-supported protection system reduces operator radiation exposure and musculoskeletal strain during endovascular aortic repair procedures. The results may help improve occupational safety during complex fluoroscopy-guided vascular interventions.

Interventions

DEVICEExoskeleton-supported radiation protection system

An exoskeleton-supported radiation protection system with visor used by the operator during endovascular aortic repair procedures.

DEVICEStandard lead apron

A standard lead apron used by the operator during endovascular aortic repair procedures.

Sponsors

Samodzielny Publiczny Szpital Kliniczny nr 2 PUM
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
35 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* age 35 years or older * written informed consent obtained * vascular surgeon with substantial experience in endovascular procedures * active participation in endovascular aortic repair procedures as a primary operator or assistant * high procedural volume in endovascular interventions

Exclusion criteria

* refusal or inability to provide informed consent * medical contraindications to the use of standard lead aprons or the exoskeleton-supported radiation protection system * health conditions preventing safe participation in study procedures

Design outcomes

Primary

MeasureTime frameDescription
Operator musculoskeletal strain assessed during endovascular aortic repair procedures using shoulder load sensors.During each procedureOperator weight distribution and physical load assessed during endovascular aortic repair procedures using foot-mounted load sensors.
Operator radiation exposureDuring each procedureOperator radiation exposure measured during endovascular aortic repair procedures using real-time personal dosimetry.

Countries

Poland

Contacts

CONTACTPaweł Rynio, MD, PhD
p.rynio@usk2.szczecin.pl914661156

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 14, 2026