Key result
The "Chimney" Commando procedure demonstrated early safety and feasibility in re-operative patients with small aortic and mitral annuli, with a 3.3% hospital mortality rate and satisfactory valve hemodynamics at 6 months.
Why the study?
The Commando procedure is technically challenging in patients with small aortic and mitral annuli, prompting evaluation of the safety and early outcomes of the Chimney modality using a self-assembled valved conduit after prior valve surgery.
Does the "Chimney" Commando procedure provide safe and feasible early outcomes in re-operative patients with small aortic and mitral annuli?
Observational (n=30)
No
Does the "Chimney" Commando procedure provide safe and feasible early outcomes in re-operative patients with small aortic and mitral annuli?
The "Chimney" Commando procedure is a feasible and safe option for re-operative patients with small aortic and mitral annuli, allowing for adequate valve prosthesis implantation.
Supports feasibility of Chimney Commando in reoperative small annuli; leaves open durability and comparative efficacy.
Background: Commando procedure, the surgical replacement of the mitral and aortic valves combined with reconstruction of the fibrosa fibrous body, is a technical challenge in patients with small aortic and mitral annuli. In this study, we evaluated the safety and early outcomes of the "Chimney" modality of the Commando procedure, in patients with small aortic and mitral annuli, after prior valve surgery, using a self-assembled valved conduit. Methods: From April 2021 to April 2022, 30 consecutive cases of the "Chimney" Commando procedure, with a self-assembled valved conduit and other combined cardiac procedures, were fully performed for re-operative patients with small aortic roots. Data were obtained through a medical record review, at the Asian Heart Hospital in Wuhan, China. Results: = 1) of the patients, due to malignant arrhythmias and multiorgan failure. Postoperative echocardiogram exams showed that the sizes of the aortic and mitral valve prostheses were 24.23 ± 1.60 mm and 28.33 ± 1.21 mm, respectively. All patients had intact intervalvular fibrosa (IVF) repair and no patient had any aberration in the left heart chamber communication. With the exception of one postoperative sick sinus syndrome and one re-sternotomy for bleeding, there were no significant postoperative complications, such as mortality, renal failure requiring ongoing dialysis, or mediastinitis. Echocardiography exams in the sixth postoperative month showed that the mean gradients of the aortic and mitral valves were 16.26 ± 6.44 mmHg and 11.24 ± 4.90 mmHg, respectively. Conclusions: In comparison with the standard Commando operation, the early outcomes and safety of the "Chimney" Commando procedure proved to be a feasible therapeutic option for patients with small aortic and mitral annuli, after prior valve operations. This approach enables the enlargement of the aortic and mitral annuli and the implantation of the necessary valve prosthesis.
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Yang et al. (2023) conducted an observational in Small aortic and mitral annuli after prior valve surgery (n=30). "Chimney" Commando procedure was evaluated on Hospital mortality. The "Chimney" Commando procedure demonstrated early safety and feasibility in re-operative patients with small aortic and mitral annuli, with a 3.3% hospital mortality rate and satisfactory valve hemodynamics at 6 months.
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