Effect of 3D-printed hearts used in left ventricular outflow tract obstruction: a multicenter study

Wang, Xianzhi; Liang, Jixiang; Mu, Cunfu; Zhang, Wenlin; Xue, Chunzhu; He, Yang; Zhang, Gen; Li, Dianyuan

doi:10.1186/s12872-022-02641-6

Cited by 3 publications

(6 citation statements)

References 13 publications

(11 reference statements)

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“…Novel simulation-based methods for preprocedural planning have recently been developed. Wang et al [36] performed a small randomized trial allocating patients to 3D-printing of the heart to aid procedural planning prior to myectomy, or to myectomy alone. The 3D printed-heart group had lower operation and bypass times, and lower intraprocedural blood loss.…”

Section: Imagingmentioning

confidence: 99%

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The mitral valve in hypertrophic cardiomyopathy

Malcolmson

Shipolini

Mohiddin

et al. 2023

Current Opinion in Cardiology

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Purpose of review Whilst abnormally increased left ventricular wall thickness is the hallmark feature of hypertrophic cardiomyopathy (HCM), anomalies of the mitral valve and supporting apparatus are well documented. This review addresses the clinical importance of mitral valve abnormalities in HCM, their mechanistic associations with symptoms, and therapeutic strategies targeting mitral valve and apparatus abnormalities. Recent findings The normal mitral valve possesses anatomical features facilitating unrestricted blood flow during LV filling, preventing regurgitation during LV systole, and avoiding obstruction of LV ejection. In HCM, a variety of structural and functional abnormalities can conspire to cause deranged mitral valve function, with implications for management strategy. Identification and characterization of these abnormalities is facilitated by multimodality imaging. Alcohol septal ablation (ASA) cannot address primary mitral valve abnormalities, and so is not preferred to surgical intervention if mitral valve abnormalities are present and are judged to make dominant contributions to LV outflow tract obstruction (LVOTO). Two broadly opposing surgical intervention strategies exist, one advocating isolated septal myectomy and the other including adjuvant mitral apparatus modification. Newer, less invasive surgical and transcatheter techniques will expand interventional options. Summary Mitral valve abnormalities are a central pathological feature of HCM. Multimodality imaging is crucial for their identification and characterization prior to therapeutic intervention.

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Section: Imagingmentioning

confidence: 99%

“…The 3D printed-heart group had lower operation and bypass times, and lower intraprocedural blood loss. The 3D-printed heart model enables surgeons to recognize heterogeneous septal and mitral anatomy, displaying their geometric relationships, and allows the surgeon to simulate variations of myocardial resection [36].…”

Section: Imagingmentioning

confidence: 99%

The mitral valve in hypertrophic cardiomyopathy

Malcolmson

Shipolini

Mohiddin

et al. 2023

Current Opinion in Cardiology

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“…3D modeling is revolutionizing the understanding of the surgical anatomy of congenital heart defects (CHDs), impacting clinical decision-making, surgeons' training, and parental counseling. [1][2][3][4] Hands-on surgical training (HOST) using 3D-printed or siliconemolded models created from 3D-modeling of patients' imaging data has been proven to be a valid instrument to train residents and fellows in the specific surgical skills to achieve the correction of CHDs. 5,6 By utilizing validated self-assessment tools to investigate procedure-specific details and objectives, 6 both junior and senior surgeons have demonstrated an enhancement in technical performance across two different attempts of the proposed surgical procedures.…”

Section: Introductionmentioning

confidence: 99%

“…7,8 Furthermore, the incorporation of HOST into congenital heart surgery (CHS) training holds tangible potential to result in improved outcomes in clinical practice. 3,4,9 To date, the assessment of CHS trainees' surgical skills and performance is based on supervisors' judgment and approval, while a standardized and objective-specific CHS training program implemented with HOST is still in evolution. Given the extremely wide spectrum of technical difficulty and required surgical skills for the correction of CHDs, a single training protocol is not considered sufficient.…”

Section: Introductionmentioning

confidence: 99%

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Longitudinal Evaluation of Congenital Cardiovascular Surgical Performance and Skills Retention Using Silicone-Molded Heart Models

Ponzoni,

Alamri,

Peel

et al. 2024

World J Pediatr Congenit Heart Surg

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Objective: Hands-on surgical training (HOST) for congenital heart surgery (CHS), utilizing silicone-molded models created from 3D-printing of patients’ imaging data, was shown to improve surgical skills. However, the impact of repetition and frequency of repetition in retaining skills has not been previously investigated. We aimed to longitudinally evaluate the outcome for HOST on two example procedures of different technical difficulties with repeated attempts over a 15-week period. Methods: Five CHS trainees were prospectively recruited. Repair of coarctation of the aorta (CoA) and arterial switch operation (ASO) were selected as example procedures of relatively low and high technical difficulty. Procedural time and technical performance (using procedure-specific assessment tools by the participant, a peer-reviewer, and the proctor) were measured. Results: Coarctation repair performance scores improved after the first repetition but remained unchanged at the follow-up session. Likewise, CoA procedural time showed an early reduction but then remained stable (mean [standard deviation]: 29[14] vs 25[15] vs 23[9] min at 0, 1, and 4 weeks). Conversely, ASO performance scores improved during the first repetitions, but decreased after a longer time delay (>9 weeks). Arterial switch operation procedural time showed modest improvements across simulations but significantly reduced from the first to the last attempt: 119[20] versus 106[28] min at 0 and 15 weeks, P = .049. Conclusions: Complex procedures require multiple HOST repetitions, without excessive time delay to maintain long-term skills improvement. Conversely, a single session may be planned for simple procedures to achieve satisfactory medium-term results. Importantly, a consistent reduction in procedural times was recorded, supporting increased surgical efficiency.

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Applications of 3D Printing Technology in Diagnosis and Management of Heart Failure

Goswami,

Kazim,

Nguyen

2024

Curr Treat Options Cardio Med

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Purpose of Review 3D printing (3DP) technology has emerged as a valuable tool for surgeons and cardiovascular interventionalists in developing and tailoring patient-specific treatment strategies, especially in complex and rare cases. This short review covers advances, primarily in the last three years, in the use of 3DP in the diagnosis and management of heart failure and related cardiovascular conditions. Recent Findings Latest studies include utilization of 3DP in ventricular assist device placement, congenital heart disease identification and treatment, pre-operative planning and management in hypertrophic cardiomyopathy, clinician as well as patient education, and benchtop mock circulatory loops. Summary Studies reported benefits for patients including significantly reduced operation time, potential for lower radiation exposure, shorter mechanical ventilation times, lower intraoperative blood loss, and less total hospitalization time, as a result of the use of 3DP. As 3DP technology continues to evolve, clinicians, basic science researchers, engineers, and regulatory authorities must collaborate closely to optimize the utilization of 3D printing technology in the diagnosis and management of heart failure.

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Effect of 3D-printed hearts used in left ventricular outflow tract obstruction: a multicenter study

Cited by 3 publications

References 13 publications

The mitral valve in hypertrophic cardiomyopathy

The mitral valve in hypertrophic cardiomyopathy

Longitudinal Evaluation of Congenital Cardiovascular Surgical Performance and Skills Retention Using Silicone-Molded Heart Models

Applications of 3D Printing Technology in Diagnosis and Management of Heart Failure

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