Early outcome of surgical treatment of 20 cases of postinfartion ventricular septal rupture by extended sandwich patch technique via right ventricle approach

Objective: Different techniques have been described to repair post myocardial infarction ventricular septal rupture (VSR), each method may result in residual shunting, bleeding, and post-operative mortality. The aim of this report is to describe early results of extended sandwich technique through right ventricle in 20 consecutive patients. Patients and Methods: A retrospective, cross-sectional and descriptive study on 20 patients underwent surgery for myocardial infarction VSR by extended sandwich technique through right ventricle from 12/2018 to 3/2021 in Hanoi Heart Hospital. Result: 20 consecutive patients (10 women and 10 men) with postinfarction ventricular septal rupture (mean age 72 years, range 48-84) underwent surgical repair for by extended sandwich technique performed through right ventricle from December 2018 to August 2021 in our institute. Reconstruction of the septum was performed by two patches according to the method described by Asai et al. The mean aortic clamp time was 101. The mean extracorporeal circulation time was 143 min. Postoperative intensive care unit (ICU) stay averaged 4 days (range, 1-10 days). There was 30% hospital mortality. 10% postoperative residual shunting was detected, and no patient needed reoperation for bleeding. Conclusion: This method of extended sandwich technique through right ventricle was safe, simple, and it could be performed in acute phase of myocardial infarction.

Epidemiology of Post-Infarction Ventricular Septal Rupture in Patients Undergoing Surgical Repair at Different Times from the Development of Acute Myocardial Infarction

Introduction. The article is dedicated to the epidemiological aspects of the mechanical complication of acute myocardial infarction (AMI), particularly post-infarction ventricular septal rupture (VSR), problematic issues of its etiology and localization. Mortality of such patients is determined by rapid development of hemodynamic disorders and their severity, unpredictable clinical course, and the difficulty of early diagnosis. In addition, the high mortality rate of patients, especially when correcting the ventricular septal defect at the early stages after AMI, leaves open the question of the tactics of surgical treatment. The influence of certain risk factors of ischemic heart disease (IHD) on the development of post-infarction VSR is also considered. The aim. To study the epidemic features of post-infarction VSR in patients with different terms of surgical intervention after the development of AMI. Materials and methods. This study presents a retrospective analysis of 90 patients with coronary artery disease complicated by post-infarction VSR, who underwent surgical intervention for the period 2002-2019. The ages of hospitalized patients with post-infarction VSR ranged from 29 to 81 years. All the patients were divided into 3 groups depending on the time interval from AMI to surgical intervention. Results and discussion. It was found that post-infarction VSR is more common in men in the age range of 45-74 years after the manifestation of the first transmural AMI. More than a half of post-infarction VSR cases (56.7%) are associated with anterior localization of the ruptures in consequence of anterior AMI. Since the leading role in the treatment of AMI belongs to percutaneous coronary interventions (PCI), we analyzed the use of various reperfusion techniques to restore coronary blood flow in patients with post-infarction VSR. The analysis suggests that there are no statistically significant differences between the studied groups of patients with post-infarction VSR who underwent myocardial reperfusion (p = 0.103). Conclusions. The presence of chronic renal failure (CRF) in patients in the early post-infarction period can complicate the course of post-infarction VSR and affect perihospital mortality. The absence or untimeliness of myocardial reperfusion increases the risk of developing this complication of AMI. The ambiguous prognosis of treatment of post-infarction VSR makes a serious problem for clinicians.

The Clinical Outcomes of Ventricular Septal Rupture Secondary to Acute Myocardial Infarction: A Retrospective, Observational Trial

Background. Ventricular septal rupture (VSR) is a severe mechanical complication secondary to acute myocardial infarction (AMI) with a dreadful prognosis. The goal of our study was to evaluate the mortality and to identify the predictors of mortality for this population. Methods. From June 2012 to July 2021, patients with VSR secondary to AMI were initially screened for eligibility in this study. The potential risk predictors were determined using appropriate logistic regression models. Results. In this retrospective study, a total of 50 cases were included, and 14 patients survived and got discharged successfully. Univariable analyses indicated that the heart rate (HR), white blood cell (WBC) count, neutrophils count, serum glucose, serum creatinine, serum lactic acid, and the closure of rupture were significantly associated with mortality among these special populations. Conclusion. This study found that such high mortality in patients with VSR after AMI was significantly correlated with these risk factors representing sympathetic excitation and large infarct size. Coronary revascularization combined with the closure of rupture might be helpful in improving their prognosis.

Transcatheter closure of ventricular septal rupture with prolonged support of intra-aortic balloon pump after primary PCI: a case report

Background Ventricular septal rupture (VSR) is a rare but severe complication of acute myocardial infarction (AMI). For such cases, surgical repair is recommended by major guidelines, but not always possible for such cases. Case presentation A 72-year-old man presented to the emergency room. ECG showed the ST-segment was elevated by 2–3 mm in lead II, III, and aVF, with Q-waves. Coronary angiography (CAG) showed multi-vessel disease with a total occlusion of the right coronary artery (RCA) and severe stenosis of the left anterior descending artery (LAD). A diagnosis of acute inferior myocardial infarction was made. VSR occurred immediately after percutaneous coronary intervention (a 2.5 × 20 mm drug-eluting stent implanted in RCA), and the patient developed cardiogenic shock. An intra-aortic balloon pump (IABP) was used to stabilize the hemodynamics. Transthoracic echocardiography (TTE) revealed an 11.4-mm left-to-right shunt in the interventricular septum. An attempt was made to reduce the IABP augmentation ratio for weaning on day 12 but failed. Transcatheter closure was conducted using a 24-mm double-umbrella occluder on day 28. The patient was weaned from IABP on day 31 and underwent secondary PCI for LAD lesions on day 35. The patient was discharged on day 41. Upon the last follow-up 6 years later, CAG and TTE revealed no in-stent restenosis, no left-to-right shunt, and 51% left ventricular ejection fraction. Conclusions Prolonged implementation of IABP can be a viable option to allow deferred closure of VSR in AMI patients, and transcatheter closure may be considered as a second choice for the selected senior and vulnerable patients, but the risk is still high.