Analysis of serum calcium change trajectories and prognostic factors in patients with acute type A aortic dissection.

Objectives: This study aimed to analyze the correlation between serum calcium changes and short-term prognosis of patients with acute type A aortic dissection. Methods: Patients who underwent acute type A aortic dissection surgery at Fujian Heart Medical Center between June 2019 and June 2021 were retrospectively analyzed. Results: A total of 383 patients were enrolled. According to the changing track of serum calcium in patients after acute type A aortic dissection, three potential category tracks were determined: high-level (n = 85), medium-level (n = 259), and continuous low-level groups (n = 39). Using the medium-level group as the control, regression analysis showed that poor prognosis risk was increased in the group with continuous low serum calcium (odds ratio = 2.454, P < 0.05) and in the group with continuous low serum calcium > 48 h (odds ratio = 3.595, P < 0.05). Age (odds ratio = 1.063, P < 0.001), body mass index (odds ratio = 1.138, P < 0.05), hypertension (odds ratio = 3.697, P < 0.05), and the highest lactic acid within 72 h after surgery(odds ratio = 1.093, P < 0.05) were independent risk factors for poor prognosis after aortic dissection. Conclusion: Continuous low serum calcium was an independent predictor of poor prognosis in patients with acute type A aortic dissection. Key points: Key Question What is the relationship between serum calcium and poor patient prognosis in acute type A aortic dissection (AAAD). Key finding(s) Of three categories, continuous low calcium for more than 48 h is related to poor prognosis of patients with AAAD. Take-home message Clinicians should determine causes of low calcium and prevent fluctuations postoperatively, thereby decreasing incidence of poor prognosis. [ABSTRACT FROM AUTHOR]

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