A new surgical technique for post-myocardial infarction ventricular septal rupture with hemodynamic instability

Analysis of influencing factors for prognosis of patients with ventricular septal perforation: A single-center retrospective study

Background

Ventricular septal rupture (VSR) is a type of cardiac rupture, usually complicated by acute myocardial infarction (AMI), with a high mortality rate and often poor prognosis. The aim of our study was to investigate the factors influencing the long-term prognosis of patients with VSR from different aspects, comparing the evaluation performance of the Gensini score, Sequential Organ Failure Assessment (SOFA) score and European Heart Surgery Risk Assessment System II (EuroSCORE II) score systems.

Methods

This study retrospectively enrolled 188 patients with VSR between Dec 9, 2011 and Nov 21, 2021at the First Affiliated Hospital of Zhengzhou University. All patients were followed up until Jan 27, 2022 for clinical data, angiographic characteristics, echocardiogram outcomes, intraoperative, postoperative characteristics and major adverse cardiac events (MACEs) (30-day mortality, cardiac readmission). Cox proportional hazard regression analysis was used to explore the predictors of long-term mortality.

Results

The median age of 188 VSR patients was 66.2 ± 9.1 years and 97 (51.6%) were males, and there were 103 (54.8%) patients in the medication group, 34 (18.1%) patients in the percutaneous transcatheter closure (TCC) group, and 51 (27.1%) patients in the surgical repair group. The average follow-up time was 857.4 days. The long-term mortality of the medically managed group, the percutaneous TCC group, and the surgical repair group was 94.2, 32.4, and 35.3%, respectively. Whether combined with cardiogenic shock (OR 0.023, 95% CI 0.001-0.054, P = 0.019), NT-pro BNP level (OR 0.027, 95% CI 0.002-0.34, P = 0.005), EuroSCORE II (OR 0.530, 95% CI 0.305-0.918, P = 0.024) and therapy group (OR 3.518, 95% CI 1.079-11.463, P = 0.037) were independently associated with long-term mortality in patients with VSR, and this seems to be independent of the therapy group. The mortality rate of surgical repair after 2 weeks of VSR was much lower than within 2 weeks (P = 0.025). The cut-off point of EuroSCORE II was determined to be 14, and there were statistically significant differences between the EuroSCORE II < 14 group and EuroSCORE II≥14 group (HR = 0.2596, 95%CI: 0.1800-0.3744, Logrank P < 0.001).

Conclusion

Patients with AMI combined with VSR have a poor prognosis if not treated surgically, surgical repair after 2 weeks of VSR is a better time. In addition, EuroSCORE II can be used as a scoring system to assess the prognosis of patients with VSR.

Transaortic approach for the repair of the basal ventricular septal rupture

A 53-year-old man who suffered acute inferior myocardial infarction was recently transferred to our hospital due to occlusion of the right coronary artery. The results of the echocardiogram revealed a basal ventricular septal rupture (VSR). Since hemodynamic instability had been observed, we performed emergency surgery 5 days after the myocardial infarction began. We used a recently developed novel technique to treat this case: a patent ductus arteriosus occluder placed on the left ventricular side of the septum to close the VSR site, placed directly via the transaortic approach. Simple intermittent mattress sutures with gaskets were used for further fixation. The mild residual shunt was detected postoperatively. The patient was discharged 3 weeks after surgery.

Clinical Characteristics and Contemporary Prognosis of Ventricular Septal Rupture Complicating Acute Myocardial Infarction: A Single-Center Experience

Objectives: Ventricular septal rupture (VSR) is a rare but lethal complication of acute myocardial infarction (AMI). We conducted a retrospective analysis of the clinical characteristics of VSR patients and explored the risk factors for long-term mortality. Methods: In this single-center cohort study, 127 patients diagnosed with post-AMI VSR between May 2012 and April 2019 were included. Demographic, clinical, operative, and outcome data were collected. The 30-day and long-term mortality were outcomes of interest. Cox proportional hazard regression analysis was used to explore the predictors of long-term mortality. Results: The mean age of the VSR cohort was 66.6 ± 8.7 years, 67 (52.8%) were males. Among the 127 patients, 78 patients (61.4%) were medically managed, 31 (24.4%) patients underwent percutaneous transcatheter closure (TCC), and 18 (14.2%) patients received surgical repair. The median follow-up time was 1129 days [interquartile range: 802-2019 days]. The 30-day mortality of the medically managed group, percutaneous TCC group, and surgical management group was 93.6, 22.6, and 11.1%, respectively; and the long-term mortality was 96.2, 25.8, and 22.2%, respectively. VSR repair treatment including surgical management (HR 0.01, 95% CI 0.001-0.09, p < 0.001) and percutaneous TCC (HR 0.09, 95% CI 0.03-0.26, p < 0.001) was associated with a better prognosis, and cardiogenic shock (CS) (HR 9.30, 95% CI 3.38-25.62, p < 0.001) was an independent risk factor of long-term mortality. Conclusions: The prognosis of VSR patients without operative management remains poor, especially in those complicated with CS. Timely and improved surgery treatment is needed for better outcomes in VSR patients.