Ratio of the false lumen to the true lumen is associated with long-term prognosis after surgical repair of acute type A aortic dissectionCentral MessagePerspective
Takashi Igarashi, MD,
Yoichi Sato, MD,
Hirono Satokawa, MD,
Shinya Takase, MD,
Masumi Iwai-Takano, MD,
Yuki Seto, MD,
Hitoshi Yokoyama, MD, PhD
Affiliations
Takashi Igarashi, MD
Address for reprints: Takashi Igarashi, MD, Department of Cardiovascular Surgery, Fukushima Medical University, Hikarigaoka 1, Fukushima 960-1295, Japan.; Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Yoichi Sato, MD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Hirono Satokawa, MD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Shinya Takase, MD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Masumi Iwai-Takano, MD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Yuki Seto, MD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Hitoshi Yokoyama, MD, PhD
Department of Cardiovascular Surgery, Fukushima Medical University, Fukushima, Japan
Objectives: The aim of this study was to assess potential predictors of aortic events after an emergency surgery for acute type A aortic dissection, especially paying attention to the findings of computed tomography (CT) performed immediately after the surgery. Methods: Between January 2001 and December 2015, 72 patients, who were diagnosed as having Stanford type A acute aortic dissection with a patent false lumen in the descending thoracic aorta, survived the emergency operation, and had postoperative CT scan data, were included in this study (mean follow-up, 8.2 ± 3.8 years; range 0.8-17.4 years). From the CT scan data, the diameter of the false lumen (FL-D) and true lumen (TL-D) were measured, and the FL-D:TL-D ratio was calculated. Long-term outcomes of the FL-D > TL-D group (n = 30) and the FL-D TL-D group (92.0% and 88.6% vs 81% and 60.7%; log rank P < .05). Conclusions: Our results suggest that the false lumen:true lumen ratio predicts long-term prognosis after surgical repair of acute type A aortic dissection.
