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Background: Acute kidney injury (AKI) complicating primary percutaneous coronary intervention (PCI) is an independent predictor of short- and long-term outcomes in patients presenting with ST-elevation myocardial infarction (STEMI). Prior studies suggest a lower incidence of AKI in patients undergoing PCI through radial artery compared to femoral artery access; however, no randomized clinical trials have specifically investigated this question in patients presenting with STEMI., Methods: To determine whether radial access (RA) is associated with a reduced frequency of AKI following primary PCI, we performed a substudy of the SAFARI-STEMI trial. The SAFARI-STEMI trial was an open-label, multicenter trial, which randomized patients presenting with STEMI to RA or femoral access (FA), between July 2011 and December 2018. The primary outcome of this post hoc analysis was the incidence of AKI, defined as an absolute (>0.5 mg/dL) or relative (>25%) increase in serum creatinine from baseline., Results: In total 2,285 (99.3%) of the patients enrolled in SAFARI-STEMI were included in the analysis-1,132 RA and 1,153 FA. AKI occurred in 243 (21.5%) RA patients and 226 (19.6%) FA patients (RR: 0.91, 95% CI: 0.78-1.07, P = .27). An absolute increase in serum creatinine >0.5 mg/dL was seen in 49 (4.3%) radial and 52 (4.5%) femoral patients (RR: 1.04, 95% CI: 0.71-1.53, P = .83). AKI was lower in both groups when the KDIGO definition was applied (RA 11.9% vs FA 10.8%; RR: 0.90, 95% CI: 0.72-1.13, P = .38)., Conclusions: Among STEMI patients enrolled in the SAFARI-STEMI trial, there was no association between catheterization access site and AKI, irrespective of the definition applied. These results challenge the independent association between catheterization access site and AKI noted in prior investigations., (Copyright © 2021 Elsevier Inc. All rights reserved.)

Cervical cancer is a preventable disease. HPV infection has been linked to more than 90% of cervical cancers. A vaccine to prevent the acquisition of HPV has been available since 2006. The purpose of this study was to investigate women's perceptions of cervical cancer prevention, including HPV vaccination. A reproductive justice framework guided data collection and analysis. In 2016, researchers conducted 70 in-depth, semi-structured qualitative interviews with women aged 19-78 years in South Carolina. A purposive sampling approach was employed to maximize requisite variety based on social, economic, and environmental axes of inequality. Participants self-identified as white (53%), African American (33%), and Hispanic (9%). Data analysis included an inductive constant comparative method to identify patterns and themes across the interviews. Misinformation about the prevalence and risk of HPV and cervical cancer led to "othering" of women with HPV-related diagnoses based on the flawed assumption of not being at risk. Participants described a lack of knowledge about the effectiveness and safety of the HPV vaccine. Social norms influenced participants' perceptions of HPV vaccination and cervical cancer, including concerns about sexual activity and intergenerational communication. Participants' social construction of identity, including race/ethnicity, socioeconomic position, ability, age, gender, sexual orientation, and immigration status, impacted their perceptions of cervical cancer screening and the HPV vaccine. In particular, participants believed that the HPV vaccine was "only for girls" and identified gender norms that limited uptake. Participants described barriers to accessing health care and cervical cancer screening, including cost, health insurance, and life changes (e.g., pregnancy, relocating). Many participants experienced an abnormal Papanicolaou test and described follow-up care, including biopsies and treatment for cervical dysplasia. Findings from this study offer insight into women's identity and perceptions of cervical cancer prevention. Results provide practical recommendations to increase women's agency in the development of successful public health interventions., (Copyright © 2019 Elsevier Ltd. All rights reserved.)

Background: Transcatheter aortic valve implantation (TAVI) is evolving rapidly and is increasingly being adopted in the treatment of aortic valve disease. The goal of this study was to examine regional differences in surgical aortic valve replacement (SAVR) and TAVI across Atlantic Canada., Methods: We identified all patients who underwent SAVR or TAVI between Jan. 1, 2010, and Dec. 31, 2014, in New Brunswick, Nova Scotia and Newfoundland and Labrador. Data obtained included patient demographic characteristics and surgical procedure details. We performed univariate descriptive analyses and calculated crude and age- and sex-adjusted incidence rates., Results: A total of 3042 patients underwent SAVR or TAVI during the study period, 1491 in Nova Scotia, 1042 in New Brunswick and 509 in Newfoundland and Labrador. Patient demographic characteristics were similar across regions. A much higher proportion of patients in Newfoundland and Labrador (43.6%) than in Nova Scotia (4.2%) or New Brunswick (13.6%) received a mechanical versus a bioprosthetic valve. Rates of TAVI increased over the study period, with New Brunswick adopting their program before Nova Scotia (144 v. 74 procedures). Adjusted rates of all AVR procedures remained stable in Nova Scotia (40-50 per 100 000 people). Adjusted rates were lower in New Brunswick and Newfoundland and Labrador than in Nova Scotia; they increased slowly in New Brunswick over the study period., Conclusion: Despite geographical proximity and similar patient demographic characteristics, there existed regional differences in the management of aortic valve disease within Atlantic Canada. Further study is required to determine whether the observed differences in age- and sex-adjusted rates of AVR may be explained by geographical disease-related differences, varying practice patterns or barriers in access to care.

Cardiovascular disease encompasses coronary artery disease and valvular heart disease, and the prevalence of both increases with age. Over the past decade, the landscape of interventional cardiology has evolved to encompass a new set of percutaneous procedures outside the coronary tree, including transcatheter aortic valve implantation, transcatheter mitral valve repair, and left atrial appendage occlusion. These interventions have sparked a new discipline within interventional cardiology referred to as structural heart disease (SHD) intervention. The access to and numbers of such procedures performed in Canada is currently unknown. This "first of its kind" survey of structural interventions provides insight into the landscape of SHD intervention in Canada and the challenges faced by cardiologists to deliver this important care., (Copyright © 2017 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.)

We report the identification of a novel series of human epithelial sodium channel (ENaC) blockers that are structurally distinct from the pyrazinoyl guanidine chemotype found in prototypical ENaC blockers such as amiloride. Following a rational design hypothesis a series of quaternary amines were prepared and evaluated for their ability to block ion transport via ENaC in human bronchial epithelial cells (HBECs). Compound 11 has an IC(50) of 200nM and is efficacious in the Guinea-pig tracheal potential difference (TPD) model of ENaC blockade with an ED(50) of 44μgkg(-1) at 1h. As such, pyrazinoyl quaternary amines represent the first examples of a promising new class of human ENaC blockers., (Copyright © 2011 Elsevier Ltd. All rights reserved.)