New-onset extreme right axis deviation in acute myocardial infarction: clinical characteristics and outcomes.

BACKGROUND: QRS axis deviation can occur during myocardial infarction (MI); to date, little is known about the significance of extreme right axis deviation (ERAD) in the frontal plane, i.e. a shift in QRS axis between +180° and +270°, during MI. We sought to investigate the clinical characteristics and outcomes of patients with new-onset ERAD in the absence of complete bundle branch blocks (BBB) in the setting of acute coronary syndromes (ACS). METHODS: A single-center retrospective observational study was conducted, including patients with new-onset ERAD in the absence of complete BBB admitted for ACS to our Cardiac Intensive Care Unit. Clinical, electrocardiographic, echocardiographic, angiographic features at baseline and cardiovascular events during hospitalization and at mid-term follow-up were collected. RESULTS: The study population consisted of 30 consecutive patients (23 men) from January 2014 to September 2018. The most frequent clinical presentation was ST-segment elevation MI (n = 22, 73.4%) and the most frequent electrocardiographic MI location was anterolateral (n = 11, 36.7%). Left anterior descending (LAD) was the most frequent infarct-related artery (n = 21, 70%); 15 patients (50%) had multivessel coronary artery disease. Cardiac arrest due to ventricular fibrillation (VF) at presentation (n = 5, 16.6%), cardiogenic shock during the hospital stay (n = 10, 33.3%), cardiac arrest due to VF after revascularization (n = 6, 20%) and cardiac death (n = 7, 23.3%) were common. CONCLUSION: New-onset ERAD during MI may be related to extensive myocardial ischemia and/or necrosis causing an "electrical escaping" with an extreme dislocation of the QRS axis. In our limited series we found several acute arrhythmic and hemodynamic complications and high mortality.

[A case of right heart failure: when it is not pulmonary embolism]. / Un caso di insufficienza cardiaca destra: quando l'embolia polmonare non è un'embolia polmonare.

A 66-year-old patient with recent instrumental findings (echocardiogram, cardiac magnetic resonance imaging) of right ventricular failure was hospitalized due to worsening signs and symptoms of right heart failure, while waiting for diagnostic definition. Pulmonary computed tomography angiography revealed findings compatible with bilateral pulmonary thromboembolism involving the main pulmonary artery. Anticoagulant therapy was initiated with initial benefit, partial relief of symptoms, and moderate improvement in right ventricular function. However, after 4 weeks, the patient was readmitted for recurrence of heart failure and signs of low cardiac output. Echocardiography showed the presence of a conspicuous, mobile, isoechoic mass occupying much of the main pulmonary artery, once again suggestive of thrombosis. The patient underwent surgical thromboendoarterectomy; postoperatively, the procedure was complicated by severe refractory heart failure unresponsive to pharmacological treatments and mechanical support, leading to death in the subsequent days. Unexpectedly, histological analysis revealed a primary angiosarcoma of the endothelium of the main pulmonary artery, a very rare cause of pulmonary artery obstruction generally associated with worst prognosis and presenting with clinical features similar to pulmonary thromboembolism.

[Temporal trends in acute myocardial infarction-related mortality in Italy (2007-2017)]. / Andamento temporale della mortalità da infarto miocardico acuto in Italia (2007-2017).

BACKGROUND: Update data regarding acute myocardial infarction (AMI)-related mortality in Italy remain scant. We assessed AMI-related mortality and time trends in Italy from 2007 to 2017 by using the Eurostat Mortality Database. METHODS: The vital registration data of Italy from the publicly free-available OECD Eurostat website database were analyzed for the period between January 1, 2007 and December 31, 2017. Deaths reporting the codes I21 and I22 were extracted and analyzed according to the International Classification of Diseases 10th revision (ICD-10) coding system. Joinpoint regression was used to calculate nationwide annual trends in AMI-related mortality, determining the average annual percent change with 95% confidence intervals (CIs). RESULTS: During the study period, 300 862 (132 368 men and 168 494 women) AMI-related deaths were recorded in Italy. Among 5-year age groups, AMI-related mortality increased with a seemingly exponential distribution. However, joinpoint regression analysis demonstrated a statistically significant linear decrease in age-standardized AMI-related mortality of -5.3 (95% CI -5.6, -4.9, p<0.0001) deaths per 100 000 individuals. A further sub-analysis, stratifying the population by gender, confirmed yielded results both in men (-5.7; 95% CI -6.3, -5.2, p<0.0001) and in women (-5.4; 95% CI -5.7, -4.8, p<0.0001). CONCLUSIONS: The Italian age-adjusted mortality rates for AMI decreased over time, both in men and women.

QTc Prolongation to Predict Mortality in Patients Admitted with COVID- 19 Infection: An Observational Study.

BACKGROUND: Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) causes Coronavirus disease 2019 (COVID-19), characterized by pulmonary infection ranging from asymptomatic forms to respiratory insufficiency and death. Evidence of cardiac involvement in COVID-19 is increasing, and systemic inflammation or direct heart damage by SARS-CoV-2 can prolong the corrected QT interval (QTc). METHODS: In this observational study, a total of 333 consecutive patients admitted to the Covid Center of Verona University Hospital from November 2020 to April 2021 were included. Patients with bundle branch block, pacemaker-controlled heart rhythm and heart rate >120 beats/min were excluded. A complete electrocardiogram (ECG) was performed at admission, and QTc values of ≥440 ms for males and ≥460 ms for females were considered prolonged. RESULTS: Overall, 153 patients had prolonged QTc (45.5%). In multivariate logistic regression analysis, male sex (odds ratio (OR)=6.612, p=0.046), troponin (OR=1.04, p=0.015) and lymphocyte count (OR=3.047, p=0.019) were independently associated with QTc prolongation. Multivariate logistic regression showed that QTc was independently associated with mortality (OR=4.598, p=0.036). Age, sex, the ratio between the partial pressure of oxygen (PaO2) and the fraction of inspired oxygen (FiO2) (P/F), and fibrosis-4 index for liver fibrosis (FIB-4) were also independently associated with mortality. CONCLUSION: QTc interval prolongation appears to be a frequent finding in patients with COVID-19. Moreover, prolonged QTc may be predictive of more severe forms of COVID-19 and worse outcome.

Usefulness of the Right Parasternal Echocardiographic View to Improve the Hemodynamic Assessment After Valve Replacement for Aortic Stenosis.

Right-parasternal-view (RPV) often provides the best hemodynamic assessment of the aortic-valve-stenosis by echocardiography. However, no detailed study on patients with aortic prosthesis is available. Thus, RPV usefulness is left as an anecdotical notion in this context. We aimed to define feasibility and clinical-impact of RPV before and soon-after percutaneous implantation (TAVI) or surgical (SAVR) aortic-valve-replacement (AVR) for AS. Patients with severe-AS electively referred for AVR between September-2019 and February-2020 were prospectively evaluated. Echocardiographic examinations inclusive of apical and RPV to measure aortic-peak-velocity , gradients and area (AVA) were performed the day before AVR and at hospital discharge and compared by matched-pair-analysis. Forty-seven patients (mean age 79 ± 8 years, 63% female, ejection-fraction 61 ± 6%) referred for SAVR (24 [51%]) or TAVI (23 [49%]) were enrolled. RPV was feasible in 45 patients (96%) before-AVR but in only 32 after-AVR (68%), particularly after SAVR (50%) than TAVI (87% p = 0.005). RPV remained the best acoustic window after TAVI in 75% of cases. Hemodynamic assessment of TAVI, but not SAVR, invariably benefit from RPV versus apical evaluation (aortic-peak-velocity: 2.57 ± 0.39 vs 2.23 ± 0.47 m/sec, p = 0.002; mean gradient: 15 ± 5 vs 12 ± 5 mm Hg, p = 0.01). Five (11%) patients presented severe patient-prosthesis-mismatch, 4 of which were detectable only by RPV. This pilot-experience demonstrates that RPV feasibility is slightly reduced after AVR. RPV can improve the hemodynamic assessment of the prosthetic valve versus apical view, including the detection of patient-prosthesis-mismatch. Furthermore, when RPV is the best acoustic windows in patients with severe AS, it generally remains so after-TAVI.