Vascular complications secondary to resuscitative endovascular balloon occlusion of the aorta placement at a Level 1 Trauma Center.

OBJECTIVE: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is designed to manage severe hemorrhagic shock. Popularized in medical care during military conflicts, the concept has emerged as a lifesaving technique that is utilized around the United States. Literature on risks of REBOA placement, especially vascular injuries, are not well-reported. Our goal was to assess the incidence of vascular injury from REBOA placement and the risk factors associated with injury and death among these patients at our institution. METHODS: We performed a retrospective cohort study of all patients who underwent REBOA placement between September 2017 and June 2022 at our Level 1 Trauma Center. The primary outcome variable was the presence of an injury related to REBOA insertion or use. Secondary outcomes studied were limb loss, the need for dialysis, and mortality. Data were analyzed using descriptive statistics, χ2, and t-tests as appropriate for the variable type. RESULTS: We identified 99 patients who underwent REBOA placement during the study period. The mean age of patients was 43.1 ± 17.2 years, and 67.7% (67/99) were males. The majority of injuries were from blunt trauma (79.8%; 79/99). Twelve of the patients (12.1%; 12/99) had a vascular injury related to REBOA placement. All but one required intervention. The complications included local vessel injury (58.3%; 7/12), distal embolization (16.7%; 2/12), excessive bleeding requiring vascular consult (8.3%; 1/12), pseudoaneurysm requiring intervention (8.3%; 1/12), and one incident of inability to remove the REBOA device (8.3%; 1/12). The repairs were performed by vascular surgery (75%; 9/12), interventional radiology (16.7%; 2/12), and trauma surgery (8.3%; 1/12). There was no association of age, gender, race, and blunt vs penetrating injury to REBOA-related complications. Mortality in this patient population was high (40.4%), but there was no association with REBOA-related complications. Ipsilateral limb loss occurred in two patients with REBOA-related injuries, but both were due to their injuries and not to REBOA-related ischemia. CONCLUSIONS: Although vascular complications are not unusual in REBOA placement, there does not appear to be an association with limb loss, dialysis, or mortality if they are addressed promptly. Close coordination between vascular surgeons and trauma surgeons is essential in patients undergoing REBOA placement.

A proposed model for a comprehensive virtual subinternship in vascular surgery.

OBJECTIVE: In the present study, we sought to understand the challenges, advantages, and applications of a vascular surgery virtual subinternship (VSI) curriculum. METHODS: Our institution hosted 25 students for two 4-week VSI rotations, one in July 2020 and one in August 2020. The students participated in a curriculum centered around the use of Zoom and telephone interactions with residents and faculty. The curriculum included selected readings, surgical videos, group didactics, and one-on-one mentorship. Anonymous pre- and postrotation self-assessments were used to ascertain the students' achievement of the learning objectives and the utility of the educational tools implemented during the rotation. The faculty and resident mentors were also surveyed to assess their experience. RESULTS: With the exception of knot-tying techniques (P = .67), the students reported significant improvement in their understanding of vascular surgery concepts after the virtual elective (P < .05). The highest ranked components of the course were interpersonal, including interaction with faculty, mentorship, and learning the program culture. The lowest ranked components of the course were simulation training and research opportunities. The rating of the utility of aspects of the course were consistent with the ranking of the components, with faculty interaction receiving the highest average rating. The ideal amount of time for daily virtual interaction reported by the students ranged from 3 to 6 hours (median, 4 hours). Overall, most of the mentors were satisfied with the virtual course. However, they reported limited ability to assess the students' personality and fit for the program. The time spent per week by the mentors on the virtual vascular surgery rotation ranged from 2 to 7 hours (median, 4 hours). Of the 17 mentors completing the surveys, 14 reported that having a virtual student was a significant addition to their existing workload. CONCLUSIONS: Overall, our student and mentor feedback was positive. Several challenges inherent to the virtual environment still require refinement. However, the goals of a VSI are distinct and should be explored by training programs. With changes to healthcare in the United States on the horizon and the constraints resulting from the severe acute respiratory syndrome coronavirus 2 pandemic, implementing a virtual away rotation could be an acceptable platform in our adaptations of our recruitment strategies.

Aortoiliac endarterectomy as a viable alternative for revascularization in a woman with isolated aortoiliac disease and an anomalous right pelvic kidney.

Although the use of aortoiliac endarterectomy to treat occlusive disease has declined since the advent of endovascular procedures and operative bypass grafting techniques, clinical scenarios still exist in which it can be useful. We present the case of a patient with right lower extremity pain at rest, an anomalous right pelvic kidney, right common iliac artery occlusion, and severe left common iliac artery stenosis. We have demonstrated that aortoiliac endarterectomy should not be considered an outdated surgical technique but a viable alternative for revascularization in a specific subset of patients.

Reconstruction of superior vena cava syndrome due to benign disease using superficial femoral vein.

Superior vena cava (SVC) syndrome due to benign disease requires prompt and durable treatment because affected patients frequently have long life expectancies. While conservative management with head elevation and anticoagulation are first-line treatments, refractory symptoms may warrant intervention. The two main invasive treatments are percutaneous endovascular repair and open surgical reconstruction. Both have demonstrated efficacy over the mid term, but surgical reconstruction is the only method with proved patency over the long term. This report documents a case of a 26-year-old woman with SVC syndrome secondary to long-term indwelling central venous catheterization. SVC bypass was performed using the superficial femoral vein, and near-complete resolution of symptoms occurred within 1 week. Superficial femoral vein is a versatile conduit for SVC reconstruction and a useful alternative to spiral saphenous vein grafts, although mid- and long-term patency rates must be further studied.