Air pollution (AP) is linked up to 20% of cardiovascular deaths. The aim of this nationwide study was to investigate subpopulations vulnerable to AP for non-ST- (NSTEMI) and ST-elevation myocardial infarction (STEMI) incidence. We analysed short- (lags up to seven days) and mid-term (0–30 days moving average) influence of particulate matter (PM_2.5), sulphur dioxide (SO₂), nitrogen dioxide (NO₂) and benzo(a)pyrene (BaP) on hospitalizations due NSTEMI and STEMI in 2011–2020. Data on AP concentrations were derived using GEM-AQ model. Study included residents of five voivodeships in eastern Poland, inhabited by over 8,000,000 individuals. Higher NO₂ and PM_2.5 concentrations increased mid-term risk of NSTEMI in patients aged < 65 years by 1.3–5.7%. Increased SO₂ and PM_2.5 concentration triggered STEMI in the short- (SO₂, PM_2.5) and mid-term (PM_2.5) amongst those aged ≥ 65 years. In the short- and mid-term, women were more susceptible to PM_2.5 and BaP influence resulting in increased STEMI incidence. In rural regions, STEMI risk was triggered by SO₂, PM_2.5 and BaP. Income-based stratification showed disproportions regarding influence of BaP concentrations on NSTEMI incidence based on gross domestic product (up to 1.4%). There are significant disparities in the influence of air pollution depending on the demographic and socio-economic factors. AP exposure is associated with the threat of a higher risks of NSTEMI and STEMI, especially to younger people, women, residents of rural areas and those with lower income. National Science Center and Medical University of Bialystok, Poland.

Due to its anatomical features, patients with an obstruction of the left main coronary artery (LMCA) have an increased risk of death. For years, coronary artery bypass grafting (CABG) has been considered as a gold standard for revascularization. However, notable advancements in the field of percutaneous coronary intervention (PCI) led to its acknowledgement as an important treatment alternative, especially in patients with low and intermediate anatomical complexity. Although recent years brought several random clinical trials that investigated the safety and efficacy of the percutaneous approach in LMCA, there are still uncertainties regarding optimal revascularization strategies. In this paper, we provide a comprehensive review of state-of-the-art diagnostic and treatment methods of LMCA disease, focusing on percutaneous methods.

Previous studies conducted in highly polluted areas have reported associations between air pollution and daily mortality. The Green Lungs of Poland are characterized by unique natural features and a moderate pollution level. We aimed to assess the short-term impact of air pollution on cardiovascular (CVD)-, acute coronary syndrome (ACS)-, and cerebrovascular-related (CbVD) mortality. An analysis with 4,500,000 person-years and a time-stratified case-crossover design was performed. The interquartile range increase in the PM_2.5 (OR 1.036, 95% CI 1.016–1.056, p < 0.001) and PM₁₀ concentration (OR 1.034, 95% CI 1.015–1.053, p < 0.001) was associated with increased CVD mortality on lag 0, and this effect persisted on the following days. The effects of PMs were expressed more in association with ACS-related mortality (PM_2.5-OR = 1.045, 95% CI 1.012–1.080, p = 0.01; PM₁₀-OR = 1.044, 95% CI 1.010–1.078, p = 0.01) and CbVD mortality (PM₁₀-OR = 1.099, 95% CI 1.019–1.343, p = 0.02). We also noted a higher CVD mortality OR in the cold season for PM₁₀ in cities with area-source domination: Białystok (p = 0.001) and Suwałki (p = 0.047). The short-term impact of PMs on cardiovascular mortality is also observed in moderately polluted areas. This adverse health effect was more apparent in CbVD- and ACS-related mortality, and in the cold season. Further research focusing on the adverse health effects of “Polish smog” is sorely needed.

In the aging society, the issue of coronary chronic total occlusion (CTO) has become a challenge for invasive cardiologists. Despite the lack of clear indications in European and American guidelines, the rates of percutaneous coronary interventions (PCI) for CTO increased over the last years. Well-conducted randomized clinical trials (RCT) and large observational studies brought significant and substantial progress in many CTO blind spots. However, the results regarding the rationale behind revascularization and the long-term benefit of CTO are inconclusive. Knowing the uncertainties regarding PCI CTO, our work sought to sum up and provide a comprehensive review of the latest evidence on percutaneous recanalization of coronary artery chronic total occlusion.

Hypertension remains a global threat to public health, affecting the worldwide population. It is one of the most common risk factors for cardiovascular disease. Today’s treatments focus on creating a hypotensive effect. However, there is a constant search for additional factors to reduce the potential of developing hypertension complications. These factors may act as a parallel treatment target with a beneficial effect in specific populations. Some studies suggest that uric acid may be considered such a factor. This study investigated the potential effect of uric acid concentrations over 5 mg/dL on the incidence of hypertension complications among patients with very high cardiovascular risk. A total of 705 patients with hypertension and very high cardiovascular risk were selected and included in the analysis. The patients were divided and compared according to serum uric acid levels. The study showed a higher occurrence of heart failure (OR = 1.7898; CI: 1.2738–2.5147; p = 0.0008), atrial fibrillation (OR = 3.4452; CI: 1.5414–7.7002; p = 0.0026) and chronic kidney disease (OR = 2.4470; CI: 1.3746–4.3558; p = 0.0024) among individuals with serum uric acid levels over 5 mg/dL, males and those with a BMI > 25 kg/m². These findings suggest that even serum uric acid concentrations over 5 mg/dL may affect the prevalence of hypertension-related complications among patients with very high cardiovascular risk.