What is the clinical evidence from this study?

Study design: Observational. Population: Isolated abdominal aortic dissection (n=8). Intervention: Conservative, endovascular, or open surgical management. Primary outcome: Clinical characteristics, imaging findings, treatment strategies, and outcomes.

What question did this study set out to answer?

The study aims to analyze clinical characteristics and outcomes of patients with isolated abdominal aortic dissection.

May 29, 2026Open Access

The Oddball of Isolated Abdominal Aortic Dissection

Key Result

Management of isolated abdominal aortic dissection with conservative, endovascular, or open surgery resulted in 0% 30-day mortality and 12.5% cardiac mortality over a median 20 months.

Key Points

The study aims to analyze clinical characteristics and outcomes of patients with isolated abdominal aortic dissection.
Retrospective analysis of 8 IAAD patients at 3 centers from 2017 to 2025.
Evaluation of clinical characteristics, imaging findings, treatment strategies, and outcomes.
Mean age of patients was 43.63 years, with different causes and locations of dissection.
62.5% of cases were spontaneous; 37.5% were traumatic.
Aneurysm formation was noted in 37.5% of patients with 30-day mortality at 0%.
Individualized management suggested, emphasizing conservative treatment for stable IAAD.

Study Design

Type

Observational (n=8)

Multicenter

Yes

Structured PICO

Population

8 patients with isolated abdominal aortic dissection (IAAD), mean age 43.63 years, 62.5% male.

Intervention

Management strategies (conservative, endovascular, or open surgery)

Outcome

Clinical characteristics, imaging findings, treatment strategies, and outcomes (including 30-day and long-term mortality)hard clinical

Isolated abdominal aortic dissection is a rare condition with favorable outcomes when managed with an individualized approach based on presentation and anatomic characteristics.

Abstract

Abstract Introduction: Isolated abdominal aortic dissection (IAAD) is a rare vascular emergency, accounting for 1.1%–4% of all aortic dissections, with limited literature on optimal management. Materials and Methods: This was a retrospective analysis of eight consecutive IAAD patients treated between 2017 and 2025 at three centers. Clinical characteristics, imaging findings, treatment strategies, and outcomes were evaluated. Results: There were 5 (62.5%) males and 3 (37.5%) females with a mean age of 43.63 years (range: 17–65). Dissection was spontaneous in 5 (62.5%) cases, blunt traumatic in 3 (37.5%) cases. Dissection was limited to the infrarenal segment in 5 (62.5%) cases, was juxtarenal in 2 (25%), and involved the suprarenal segment in 1 (12.5%) of the patients. Aneurysm formation was seen in 3 (37.5%) patients. Three (37.5%) cases of organ ischemia were identified: spinal cord ischemia in 2 and bowel and lower limb ischemia in 1 case. Treatment was conservative in 4 (50%), endovascular in 3 (37.5%), and open surgery in 1 (12.5%) patient. The 30-day mortality was 0%. Over a median follow-up of 20 months (IQR: 34.5), 1 patient (12.5%) died due to a cardiac cause. Conclusions: IAAD requires individualized management based on presentation and anatomic characteristics. Conservative management is initially appropriate for stable, uncomplicated IAAD; endovascular or surgical intervention is indicated for complications or aneurysm formation.