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Related Experiment Video

Updated: Jan 20, 2026

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Type B Aortic Dissection - A Single Center Series.

Isabel Poleri1, Marina Dias-Neto2, João Rocha-Neves3

  • 1Faculty of Medicine, University of Porto, Portugal.

Revista Portuguesa De Cirurgia Cardio-Toracica E Vascular : Orgao Oficial Da Sociedade Portuguesa De Cirurgia Cardio-Toracica E Vascular
|September 3, 2019
PubMed
Summary

Type B aortic dissection (TBAD) outcomes were studied using the DISSECT classification. Complications and chronic kidney disease increased mortality, while hypertension was linked to aortic dilatation.

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Area of Science:

  • Cardiovascular Medicine
  • Vascular Surgery
  • Diagnostic Imaging

Background:

  • Type B aortic dissection (TBAD) presents significant morbidity and mortality risks.
  • The DISSECT classification standardizes the assessment of TBAD clinical and anatomical features.
  • Tertiary institutions manage complex TBAD cases requiring detailed characterization.

Purpose of the Study:

  • To characterize a cohort of patients admitted for Type B aortic dissection.
  • To apply the DISSECT classification for detailed patient assessment.
  • To report outcomes and identify mortality predictors in TBAD patients.

Main Methods:

  • Retrospective study of patients admitted for TBAD between 2006 and 2016.
  • Re-evaluation of computerized tomographic angiography using the DISSECT classification criteria.
  • Univariate analysis to identify factors associated with mortality and aortic dilatation.

Main Results:

  • Thirty-two patients were analyzed, with 79.3% presenting acutely.
  • DISSECT classification revealed common features like aortic arch tear location (66%) and segmental extent to the abdomen/iliac arteries (60%).
  • Complications (28%) and partial false lumen thrombosis (28%) were noted. Complications, chronic kidney disease, and hypertension were associated with adverse outcomes.

Conclusions:

  • Outcomes for Type B aortic dissection in a Portuguese center were reported.
  • Interventions were primarily driven by complications.
  • Complications and chronic kidney disease correlated with increased mortality; hypertension with aortic dilatation. DISSECT classification proved applicable to all patients.