Suzuki Michiko, Orii Makoto, Sasaki Ryo, Chiba Takuya, Sugawara Tsuyoshi, Uchimura Yohei, Morino Yoshihiro, Yoshioka Kunihiro
Department of Radiology, Iwate Medical University, Yahaba, Japan.
Center for Radiological Science, Iwate Medical University, Yahaba, Japan.
Radiol Case Rep. 2024 Aug 2;19(10):4478-4481. doi: 10.1016/j.radcr.2024.07.033. eCollection 2024 Oct.
This case report shows unique aneurysm at the left ventricular apex associated with a double-chambered left ventricle (DCLV) in asymptomatic 69-year-old female. The aneurysm was located at the apex of an accessory chamber, which was formed by hypertrophied muscle band and the interventricular septum, along with a pronounced jet flow directed towards the apex aneurysm. These finding suggests that the obstruction at the base of the accessory chamber caused a pressure overload at the apex, ultimately leading to the development of the aneurysm. To best of our knowledge, this is the first case to prove the underlying cause of aneurysm formation in DCLV.
本病例报告显示，一名69岁无症状女性的左心室心尖处存在独特的动脉瘤，同时伴有双腔左心室（DCLV）。动脉瘤位于由肥厚肌束和室间隔形成的副腔的心尖处，伴有一股明显指向心尖动脉瘤的喷射血流。这些发现表明，副腔底部的梗阻导致心尖处压力过载，最终导致动脉瘤形成。据我们所知，这是首例证实DCLV中动脉瘤形成潜在原因的病例。
