Guiding Principles for the Conduct of Violence Study of Healthcare Workers and System (ViSHWaS): Insights from a Global Survey

Background Globally many studies have reported on violence faced by healthcare workers. However, there is still a lack of homogeneous data to give us a concrete understanding of the present scenario on a global scale. Conducting a global survey required a robust team organization structure, unique dissemination strategies accounting for the regional limitations, and continual networking to maintain and propagate the pool of survey collaborators and responders. This study aims to describe the strategies that helped carry out a global survey- based study, the lessons learned, and recommendations for future studies.   Methods This cross-sectional survey-based study was based on methodology of the “Hub and Spoke” model with the core team and sub-groups about different regions and managing country leads. The study was conducted across eight weeks from 6th June 2022 to 8th August 2022. The key steps included team organization, strategy formulation for survey dissemination and data collection, launching the project on social media, and conducting a post-survey amongst the collaborators. The Core Team convened weekly via video conference platforms to discuss the modus operandi, including the responsibilities of team members in communicating with HCWs from each country; strategies for data extraction and analysis. A standard message was created for the survey in English, which was spread via text, audio and video messages; the message was tailored according to the target region and population. The language barrier was managed by creating an audio translation or shifting to “an interviewer-administered” questionnaire. Call for leads and collaborators was organized through social media platforms and incentivized by proposing collaborative authorship   Results A core team of 11 members from 7 countries was assembled, which expanded to 40 country leads from around 110 countries. We also amassed more than 75 regional collaborators who worked to provide feedback and spread the message. The “Violence Study of Healthcare Workers and Systems” (VISHWAS) amassed 5500 responses across the world. A weekly alternating trend in the number of survey responses was observed for eight weeks. Guiding principles garnered through this collaborative project include focusing on 1. Effective team organization, 2. Ensuring external validation of survey tool, 3. Personalized communication, 4. Global networking, 5. Timely communication for maintaining momentum, and 6. Addressing regional limitations. The post-survey analysis showed that WhatsApp messaging was the most common modality used for survey dissemination, followed by in-person meetings and text messaging. The successful techniques were noted to be 1. Direct communication with respondents, 2. Regular progress updates, 3. Responsiveness for regional and country lead’s needs  4. Timely troubleshooting. The most common barriers for the respondents were limitations in language proficiency, technical fallouts, lack of compliance with, and difficulty understanding the questionnaire.   Conclusion In this global survey-based study of more than 5500 responses from over 110 countries, valuable lessons in team management, survey dissemination, and addressing barriers to collaborative research. We thereby recommend incorporating the guiding principles from this study to design future surveys on a global scale

Effect of breathing exercises on blood pressure and heart rate: A systematic review and meta-analysis

Background: Breathing exercises have been reported to have positive physiological effects on the body. The incidence of hypertension has become a major risk factor for cardiac complications leading to higher morbidity and mortality. Our aim was to conduct a systematic review and meta-analysis to study the effect of breathing exercises on blood pressure (BP) and heart rate (HR). Methods: A systematic review and meta-analysis analyzing randomized clinical trials (RCTs) about the effect of breathing exercises on blood pressure was conducted (PROSPERO Registration ID: CRD42022316413). PubMed, ScienceDirect, WebofScience, and Cochrane Library databases were screened for RCTs from January 2017 to September 2022. The main search terms included “breathing exercise”, “Pranayam”, “Bhramari”, “alternate nostril breathing”, “deep breathing”, “slow breathing”, “hypertension”, and “high blood pressure”. The primary outcome was the value of the systolic blood pressure and diastolic blood pressure after the intervention. The effect on heart rate was also analyzed as a secondary outcome. Results: A total of 15 studies were included in the meta-analysis. Breathing exercises have a modest but significant effect on decreasing systolic blood pressure (−7.06 [-10.20, −3.92], P = <0.01) and diastolic blood pressure (−3.43 [-4.89, −1.97], P = <0.01) mm Hg. Additionally, breathing exercises were also observed to cause a significant decrease in the heart rate (−2.41 [-4.53, −0.30], P = 0.03) beats/minute. Conclusion: In a comprehensive systematic review and meta-analysis of breathing exercises and its effect on BP and HR, there is a moderate but significant positive effect. The studies are not deprived of bias

3D reconstruction of coronary artery bifurcations from intravascular ultrasound and angiography

Abstract Coronary bifurcation lesions represent a challenging anatomical subset, and the understanding of their 3D anatomy and plaque composition appears to play a key role in devising the optimal stenting strategy. This study proposes a new approach for the 3D reconstruction of coronary bifurcations and plaque materials by combining intravascular ultrasound (IVUS) and angiography. Three patient-specific silicone bifurcation models were 3D reconstructed and compared to micro-computed tomography (µCT) as the gold standard to test the accuracy and reproducibility of the proposed methodology. The clinical feasibility of the method was investigated in three diseased patient-specific bifurcations of varying anatomical complexity. The IVUS-based 3D reconstructed bifurcation models showed high agreement with the µCT reference models, with r2 values ranging from 0.88 to 0.99. The methodology successfully 3D reconstructed all the patient bifurcations, including plaque materials, in less than 60 min. Our proposed method is a simple, time-efficient, and user-friendly tool for accurate 3D reconstruction of coronary artery bifurcations. It can provide valuable information about bifurcation anatomy and plaque burden in the clinical setting, assisting in bifurcation stent planning and education

Experimental validation and clinical feasibility of 3D reconstruction of coronary artery bifurcation stents using intravascular ultrasound

The structural morphology of coronary stents and the local hemodynamic environment following stent deployment in coronary arteries are crucial determinants of procedural success and subsequent clinical outcomes. High-resolution intracoronary imaging has the potential to facilitate geometrically accurate three-dimensional (3D) reconstruction of coronary stents. This work presents an innovative algorithm for the 3D reconstruction of coronary artery stents, leveraging intravascular ultrasound (IVUS) and angiography. The accuracy and reproducibility of our method were tested in stented patient-specific silicone models, with micro-computed tomography serving as a reference standard. We also evaluated the clinical feasibility and ability to perform computational fluid dynamics (CFD) studies in a clinically stented coronary bifurcation. Our experimental and clinical studies demonstrated that our proposed algorithm could reproduce the complex 3D stent configuration with a high degree of precision and reproducibility. Moreover, the algorithm was proved clinically feasible in cases with stents deployed in a diseased coronary artery bifurcation, enabling CFD studies to assess the hemodynamic environment. In combination with patient-specific CFD studies, our method can be applied to stenting optimization, training in stenting techniques, and advancements in stent research and development

Rapid automated lumen segmentation of coronary optical coherence tomography images followed by 3D reconstruction of coronary arteries

PURPOSE: Optical coherence tomography has emerged as an important intracoronary imaging technique for coronary artery disease diagnosis as it produces high-resolution cross-sectional images of luminal and plaque morphology. Precise and fast lumen segmentation is essential for efficient OCT morphometric analysis. However, due to the presence of various image artifacts, including side branches, luminal blood artifacts, and complicated lesions, this remains a challenging task. APPROACH: Our research study proposes a rapid automatic segmentation method that utilizes nonuniform rational B-spline to connect limited pixel points and identify the edges of the OCT lumen. The proposed method suppresses image noise and accurately extracts the lumen border with a high correlation to ground truth images based on the area, minimal diameter, and maximal diameter. RESULTS: We evaluated the method using 3300 OCT frames from 10 patients and found that it achieved favorable results. The average time taken for automatic segmentation by the proposed method is 0.17 s per frame. Additionally, the proposed method includes seamless vessel reconstruction following the lumen segmentation. CONCLUSIONS: The developed automated system provides an accurate, efficient, robust, and user-friendly platform for coronary lumen segmentation and reconstruction, which can pave the way for improved assessment of the coronary artery lumen morphology

Artificial Intelligence, Computational Simulations, and Extended Reality in Cardiovascular Interventions

Artificial intelligence, computational simulations, and extended reality, among other 21st century computational technologies, are changing the health care system. To collectively highlight the most recent advances and benefits of artificial intelligence, computational simulations, and extended reality in cardiovascular therapies, we coined the abbreviation AISER. The review particularly focuses on the following applications of AISER: 1) preprocedural planning and clinical decision making; 2) virtual clinical trials, and cardiovascular device research, development, and regulatory approval; and 3) education and training of interventional health care professionals and medical technology innovators. We also discuss the obstacles and constraints associated with the application of AISER technologies, as well as the proposed solutions. Interventional health care professionals, computer scientists, biomedical engineers, experts in bioinformatics and visualization, the device industry, ethics committees, and regulatory agencies are expected to streamline the use of AISER technologies in cardiovascular interventions and medicine in general

ViSHWaS: Violence Study of Healthcare Workers and Systems—a global survey

Objective To provide insights into the nature, risk factors, impact and existing measures for reporting and preventing violence in the healthcare system. The under-reporting of violence against healthcare workers (HCWs) globally highlights the need for increased public awareness and education.Methods The Violence Study of Healthcare Workers and Systems study used a survey questionnaire created using Research Electronic Data Capture (REDCap) forms and distributed from 6 June to 9 August 2022. Logistic regression analysis evaluated violence predictors, including gender, age, years of experience, institution type, respondent profession and night shift frequency. A χ2 test was performed to determine the association between gender and different violence forms.Results A total of 5405 responses from 79 countries were analysed. India, the USA and Venezuela were the top three contributors. Female respondents comprised 53%. The majority (45%) fell within the 26–35 age group. Medical students (21%), consultants (20%), residents/fellows (15%) and nurses (10%) constituted highest responders. Nearly 55% HCWs reported firsthand violence experience, and 16% reported violence against their colleagues. Perpetrators were identified as patients or family members in over 50% of cases, while supervisor-incited violence accounted for 16%. Around 80% stated that violence incidence either remained constant or increased during the COVID-19 pandemic. Among HCWs who experienced violence, 55% felt less motivated or more dissatisfied with their jobs afterward, and 25% expressed willingness to quit. Univariate analysis revealed that HCWs aged 26–65 years, nurses, physicians, ancillary staff, those working in public settings, with &gt;1 year of experience, and frequent night shift workers were at significantly higher risk of experiencing violence. These results remained significant in multivariate analysis, except for the 55–65 age group, which lost statistical significance.Conclusion This global cross-sectional study highlights that a majority of HCWs have experienced violence, and the incidence either increased or remained the same during the COVID-19 pandemic. This has resulted in decreased job satisfaction