three-dimensional-printing-of-a-complex-aortic-anomaly

Three-Dimensional Printing of a Complex Aortic Anomaly

Complex congenital aortic anomalies include diverse types of malformations that may be clinically asymptomatic or present with respiratory or esophageal ...

Fudan University

Shanghai Institute of Cardiovascular Disease

Mitral Valve Aneurysm (MVA) is rarely reported and occurs most in association with infective endocarditis of the aortic valve. In our case, the 46-yr-old Chinese man was referred to our hospital with dyspnea and orthopnea. Transesophageal echocardiography during operation revealed a localized, thin-walled saccular structure in the anterior leaflet that bulged into the left atrium, and severe mitral and aortic regurgitation. Aortic valve was replaced with mechanical prostheses and mitral valve was repaired with autologous pericardium. Transesophageal echocardiography during operation and transthoracic echocardiography 3 months later showed mild regurgitation.

Repair for mitral valve aneurysm using autologous pericardium: a case of our experience.

Isolated tricuspid valve replacement is rare when performed as a re-operation after a left side operation. It is important to know the factors that determine mortality and morbidity. Tricuspid Annular Plane Systolic Excursion (TAPSE) is a scoring system that is used with non-invasive Doppler echocardiography to determine right ventricular (RV) function. This study analyzed TAPSE scores and adverse outcomes of isolated tricuspid valve surgery in patients with previous cardiac surgery.

Tricuspid annular plane systolic excursion (TAPSE) can predict the outcome of isolated tricuspid valve surgery in patients with previous cardiac surgery?

The aim of the study was to evaluate the treatment of minimally invasive mitral valve replacement (MIMVR) through a right minithoracotomy for patients with rheumatic mitral valve disease.From February 2009 to December 2016, 360 patients with rheumatic mitral valve disease underwent mitral valve replacement by the same surgeon. Among them, 150 patients accepted MIMVR through a right minithoracotomy, whereas the other 210 accepted a traditional median sternotomy. After matching by patients by age, sex, EuroSCORE, New York Heart Association (NYHA) classification, renal and liver function, and degree of mitral valve disease, we selected 224 patients for analysis in our retrospective study.In the MIMVR group (112 patients), the aortic cross-clamp time (ACC time) (55.25 ± 2.18 minutes) was significantly longer than that in the control group (112 patients; 36.05 ± 1.40 minutes) (P < .0001). In contrast, the cardiopulmonary bypass time (CPB time) was shorter in the MIMVR group than in the control group (61.13 ± 2.57 vs 78.65 ± 4.05 minutes, respectively, P < .0001). Patients who accepted MIMVR surgery had less drainage 24 hours postoperation (324.10 ± 34.55 vs 492.90 ± 34.05 mL, P < .0001) and had less total drainage (713.46 ± 65.35 vs 990.49 ± 67.88 mL, P < .0001) than those who underwent median sternotomy. Thirty-two percent of patients in the MIMVR group needed a blood transfusion (1.35 ± .28 units of red blood cells, 155.36 ± 33.43 mL plasma), whereas 67.0% of the control group needed a blood transfusion (2.15 ± .24 units of red blood cells, 287.50 ± 33.54 mL plasma) (Ptransfusion < .001, Pcell = .029, Pplasma = .006). In total, 5 deaths occurred during the perioperative period; 3 occurred in the MIMVR group. The average hospital stay was significantly shorter in the MIMVR group than that in the control group (6.56 ± .23 vs 8.53 ± .59 days, P = .003).MIMVR, an effective and safe treatment approach for patients suffering from rheumatic mitral valve disease, is associated with less trauma and a faster recovery. It is a better choice for treating simple rheumatic mitral valve disease.

Minimally invasive mitral valve replacement is a safe and effective surgery for patients with rheumatic valve disease: A retrospective study.

Right-sided aortic arch associated with Kommerell's diverticulum is a rare congenital defect of aorta with complexity. The challenging surgical treatment calls for a direct and entire visibility of aorta and its branches which can be provided by the three-dimensional (3D) printing technique. A 42-year-old man with right-sided aortic arch, Kommerell's diverticulum and an aberrant left subclavian artery underwent the surgery with the guiding assistance of 3D printed model. The satisfying outcome suggests the novel combination of 3D printing technique and surgical procedure a promising perspective on treating complex aortic defect.

Three-dimensional printing guided precise surgery for right-sided aortic arch associated with Kommerell's diverticulum.

Kommerell's diverticulum is a complex congenital malformation of aorta. Three-dimensional (3D) printing is an innovative manufacturing process that allows computer-assisted conversion of 3D imaging data into physical "printouts." The aim of this study was to explore the feasibility and impact of using patient-specific 3D-printed cardiac prototypes derived from computed tomography data on surgical decision-making and preoperative planning for Kommerell's diverticulum.

Patient-specific three-dimensional printing for Kommerell's diverticulum.

A bicuspid aortic valve (BAV) with critical coarctation of the aorta (CoA) is a rare but dangerous congenital cardiac malformation. The aim of this study was to compare the benefits of a single- versus two-stage operation for patients of BAV with CoA.

Hongqiang Zhang

Department of Cardiac Surgery,
Zhongshan Hospital,
Department of Cardiac Surgery, Zhongshan Hospital

Fudan University

Three-Dimensional Printing of a Complex Aortic Anomaly

Hongqiang Zhang

Department of Cardiac Surgery,Zhongshan Hospital,Department of Cardiac Surgery, Zhongshan Hospital

Fudan University

Three-Dimensional Printing of a Complex Aortic Anomaly

Department of Cardiac Surgery,
Zhongshan Hospital,
Department of Cardiac Surgery, Zhongshan Hospital