Impact of initial high sensitivity C-reactive protein on outcomes in nonvalvular atrial fibrillation: an observational study.

Aim: The index study aimed to investigate the clinical impact of initial high-sensitivity C-reactive protein (hs-CRP) on outcomes in nonvalvular atrial fibrillation (AF). Methods: Single-center, prospective, observational study recruiting all recently diagnosed treatment-naive AF patients. Hs-CRP was measured at baseline and patients were followed for 24 months. Results: A total of 126 patients with a mean age of 66.2 (±12.0) years were enrolled. The composite outcome of major adverse cardiac or cerebrovascular events (MACCE) occurred in 19 (17.7%) at 24 months. Raised initial hs-CRP emerged as an independent predictor of MACCE on regression analysis (OR: 1.569, 95% CI: 1.289-1.912; p < 0.001). Conclusion: Raised hs-CRP was an independent predictor of MACCE at 24 months. It allows for early identification of high-risk patients.

Atrial fibrillation (AF) is the most common cause of irregular heartbeat in adults. It has a significant association with clot formation in the heart and acute vessel closure throughout the vascular system particularly of the brain causing stroke. Stroke has a significant impact on quality of life and also is associated with an increased likelihood of death. Inflammation has been linked to the development and progression of AF. In this study, we evaluated the role of a simple inflammatory blood parameter ­ high sensitivity C-reactive protein (hs-CRP) with adverse outcomes in 126 AF patients at our center over a period of 2 years. We concluded that hs-CRP was an independent predictor of worse cardiovascular outcomes in AF patients and can help in the earlier identification of high-risk patients, for whom appropriate measures can be taken to prevent adverse events.

Management of Hypertension in Patients with Type 2 Diabetes Mellitus: Indian Guideline 2024 by Association of Physicians of India and Indian College of Physicians.

In India and the Southeast Asian population, hypertension and type 2 diabetes mellitus (T2DM) are the leading lifestyle-related diseases, responsible for a majority burden of morbidity and mortality. Multiple population-spanning studies have revealed the staggering prevalence of both diseases in India, and the prevalence of both will only increase further due to factors such as an aging population, rapid urbanization, increased obesity, and sedentary lifestyles. More than 50 percent of hypertensive patients in India are also diagnosed with T2DM, and a detailed management protocol for the same is required, especially when a major portion of the disease is managed at the primary care level. The Association of Physicians of India (API) guidelines for the management of hypertension in patients with T2DM have been formulated based on consultation with leading physicians, cardiologists, diabetologists, and endocrinologists of India and Southeast Asia, keeping in mind the challenges faced by the patients in these countries and the appropriate management protocols that will be beneficial. While standard office-based blood pressure (BP) measurement forms the cornerstone of hypertension diagnosis and demands a uniform methodology to be followed, home blood pressure monitoring (HBPM) is recommended for long-term follow-up with validated devices. Ambulatory blood pressure monitoring (ABPM) offers comprehensive insights crucial for cardiovascular (CV) risk stratification. The complications of diabetic hypertension can span from increased CV risk, heart failure (HF), and renal dysfunction, and nonpharmacological and pharmacological management should be aimed toward not only control of the BP values but also protecting the end organs. While nonpharmacological measures include a focus on nutrition and diet, they also focus on approaches to weight loss, including a novel section covering the benefits of yoga. The guideline also focuses on a novel section of factors influencing CV risk, especially in the Indian population. For the pharmacological management, the guidelines address each of the categories of antihypertensive drugs, emphasizing the significance of combination therapies in the management of diabetic hypertension. In line with leading global guidelines for the management of hypertension in T2DM, for diabetic patients who often struggle with BP management and carry a high CV risk, the recommended dual combination antihypertensive therapy is particularly crucial and should be considered as first-line management therapy. While angiotensin-converting enzyme inhibitors (ACEi) or angiotensin receptor blockers (ARBs) play a highly beneficial role in the management of diabetic hypertension, a combination of ACEi or ARB with dihydropyridine calcium channel blockers (DHP-CCBs) is recommended to reduce the risk of complications and enhance patient adherence. To achieve the target of effective BP control and end-organ protection, it is beneficial and recommended to include newer CCBs (e.g., cilnidipine) in the management protocol in combination with ACEi/ARBs. Combination therapy including ARBs and DHP-CCBs should be preferred over ß-blockers and thiazides. Among the CCBs, cilnidipine, a novel molecule, is a more effective and safer option for diabetic hypertensive patients in India. ß-blockers should be used if there is a history of myocardial infarction (MI), HF, coronary artery disease (CAD), or stable angina along with the initial hypertensive regimen. The guideline also focuses on the novel reno- and cardioprotective molecules such as finerenone and sodium-glucose cotransporter 2 inhibitors (SGLT2i) and their benefits in the management of diabetic hypertension.

Edema India: Executive Summary of Screening, Diagnosis, and Management of Edema.

The management of edema requires a systematic approach to screening, diagnosis, and treatment, with an essential initial assessment to differentiate between generalized and localized edema. The Association of Physicians of India (API) aimed to develop the first Indian Edema Consensus (Edema India), offering tailored recommendations for screening, diagnosing, and managing edema based on the insights from the expert panel. The panel suggested when evaluating edema symptoms, important factors to consider include the patient's current illness, medical history, risk factors, family history, and medications. Key diagnostic investigations for edema include complete blood count, cardiovascular imaging and markers, deep vein thrombosis (DVT) assessment, along with renal, hepatic, and thyroid function tests. Edema management involves a combination of pharmacologic and nonpharmacologic interventions, including limb elevation, physiotherapy, compression therapy, fluid removal, diuretics (loop diuretics: first-line therapy), and a sodium-restricted diet. The panel believed that educating patients could foster a preventive mindset, helping to prevent the worsening of edema.

Lipid Association of India 2023 update on cardiovascular risk assessment and lipid management in Indian patients: Consensus statement IV.

OBJECTIVE: In 2016, the Lipid Association of India (LAI) developed a cardiovascular risk assessment algorithm and defined low-density lipoprotein cholesterol (LDL-C) goals for prevention of atherosclerotic cardiovascular disease (ASCVD) in Indians. The recent refinements in the role of various risk factors and subclinical atherosclerosis in prediction of ASCVD risk necessitated updating the risk algorithm and treatment goals. METHODS: The LAI core committee held twenty-one meetings and webinars from June 2022 to July 2023 with experts across India and critically reviewed the latest evidence regarding the strategies for ASCVD risk prediction and the benefits and modalities for intensive lipid lowering. Based on the expert consensus and extensive review of published data, consensus statement IV was commissioned. RESULTS: The young age of onset and a more aggressive nature of ASCVD in Indians necessitates emphasis on lifetime ASCVD risk instead of the conventional 10-year risk. It also demands early institution of aggressive preventive measures to protect the young population prior to development of ASCVD events. Wide availability and low cost of statins in India enable implementation of effective LDL-C-lowering therapy in individuals at high risk of ASCVD. Subjects with any evidence of subclinical atherosclerosis are likely to benefit the most from early aggressive interventions. CONCLUSIONS: This document presents the updated risk stratification and treatment algorithm and describes the rationale for each modification. The intent of these updated recommendations is to modernize management of dyslipidemia in Indian patients with the goal of reducing the epidemic of ASCVD among Indians in Asia and worldwide.

Cardiovascular implications of inflammatory bowel disease: An updated review.

Emerging data highlights the heightened risk of atherosclerotic cardiovascular diseases (ASCVD) in patients with chronic inflammatory disorders, particularly those afflicted with inflammatory bowel disease (IBD). This review delves into the epidemiological connections between IBD and ASCVD, elucidating potential underlying mechanisms. Furthermore, it discusses the impact of current IBD treatments on cardiovascular risk. Additionally, the cardiovascular adverse effects of novel small molecule drugs used in moderate-to-severe IBD are investigated, drawing parallels with observations in patients with rheumatoid arthritis. This article aims to comprehensively evaluate the existing evidence supporting these associations. To achieve this, we conducted a meticulous search of PubMed, spanning from inception to August 2023, using a carefully selected set of keywords. The search encompassed topics related to IBD, such as Crohn's disease and ulcerative colitis, as well as ASCVD, including coronary artery disease, cardiovascular disease, atrial fibrillation, heart failure, conduction abnormalities, heart blocks, and premature coronary artery disease. This review encompasses various types of literature, including retrospective and prospective cohort studies, clinical trials, meta-analyses, and relevant guidelines, with the objective of providing a comprehensive overview of this critical intersection of inflammatory bowel disease and cardiovascular health.

Clinical profile and outcome of cardiac manifestations in patients presenting with multisystem inflammatory syndrome in children associated with SARS-CoV-2 infection.

Multisystem inflammatory syndrome in children (MIS-C) can cause significant morbidity and mortality in children. This study was conducted to assess the pattern and outcome of cardiac abnormalities in MIS-C. This retrospective study was conducted in children with MIS-C between 1 month and 18 years. We enrolled 53 children with a mean age of 7.78 ± 4.62 years. Overall, 35.8% of children with MIS-C had cardiac manifestations in the form of coronary artery abnormalities (CAAs) or left ventricular (LV) dysfunction. Younger age (P 0.009) and high C-reactive protein at admission (P = 0.001) were significant predictors of cardiac involvement. CAAs were seen in 11.3% of children. On follow-up, 67% and 83% of children showed regression of CAA at 1 and 6 months, respectively. 24.5% of patients had presented with LV dysfunction. LV ejection fraction improved significantly at 1 month (P = 0.002) and 6 months (P = 0.001). Cardiac outcomes in MIS-C were favorable with timely identification and treatment.

Association Between Diabetes, Chronic Kidney Disease, and Outcomes in People With Heart Failure From Asia.

Background: Diabetes mellitus (DM), chronic kidney disease (CKD), and heart failure (HF) are pathophysiologically linked and increasing in prevalence in Asian populations, but little is known about the interplay of DM and CKD on outcomes in HF. Objectives: This study sought to investigate outcomes in patients with heart failure with preserved ejection fraction (HFpEF) vs heart failure with reduced ejection fraction (HFrEF) in relation to the presence of DM and CKD. Methods: Using the multinational ASIAN-HF registry, we investigated associations between DM only, CKD only, and DM+CKD with: 1) composite of 1-year mortality or HF hospitalization; and 2) Kansas City Cardiomyopathy Questionnaire scores, according to HF subtype. Results: In 5,239 patients with HF (74.6% HFrEF, 25.4% HFpEF; mean age 63 years; 29.1% female), 1,107 (21.1%) had DM only, 1,087 (20.7%) had CKD only, and 1,400 (26.7%) had DM+CKD. Compared with patients without DM nor CKD, DM+CKD was associated with 1-year all-cause mortality or HF hospitalization in HFrEF (adjusted HR: 2.07; 95% CI: 1.68-2.55) and HFpEF (HR: 2.37; 95% CI: 1.40-4.02). In HFrEF, DM only and CKD only were associated with 1-year all-cause mortality or HF hospitalization (both HRs: 1.43; 95% CI: 1.14-1.80), while in HFpEF, CKD only (HR: 2.54; 95% CI: 1.46-4.41) but not DM only (HR: 1.01; 95% CI: 0.52-1.95) was associated with increased risk (interaction P < 0.01). Adjusted Kansas City Cardiomyopathy Questionnaire scores were lower in patients with DM+CKD (HFrEF: mean 60.50, SEM 0.77, HFpEF: mean 70.10, SEM 1.06; P < 0.001) than with no DM or CKD (HFrEF: mean 66.00, SEM 0.65; and HFpEF: mean 75.80, SEM 0.99). Conclusions: Combined DM and CKD adversely effected outcomes independently of HF subtype, with CKD a consistent predictor of worse outcomes. Strategies to prevent and treat DM and CKD in HF are urgently required.

Similar Events but Contrasting Impact: Appraising the Global Digital Reach of World Heart Day and Atrial Fibrillation Awareness Month.

Background: With over 18.6 million deaths annually, cardiovascular diseases (CVDs) are the leading cause of mortality worldwide. One such complication of CVDs that can result in stroke is atrial fibrillation (Afib). As part of global outreach and awareness, World Heart Day and Atrial Fibrillation Awareness Month are celebrated annually on 29 September and the month of September, respectively. Both of these events are important cardiovascular awareness initiatives to assist public education and develop awareness strategies, and they have received considerable support from leading international organizations. Objective: We studied the global digital impact of these campaigns via Google Trends and Twitter. Methods: We evaluated the overall number of tweets, impressions, popularity and top keywords/hashtags, and interest by region to determine the digital impact using various analytical tools. Hashtag network analysis was done using ForceAtlas2 model. Beyond social media, Google Trends web search analysis was carried out for both awareness campaigns to examine 'interest by region' over the past five years by analyzing relative search volume. Results: #WorldHeartDay and #UseHeart (dedicated social media hashtags for World Heart Day by the World Heart Federation) alone amassed over 1.005 billion and 41.89 million impressions as compared with the 1.62 million and 4.42 million impressions of #AfibMonth and #AfibAwarenessMonth, respectively. On Google Trends web search analysis, the impact of Afib awareness month was limited to the USA, but World Heart Day had a comparatively global reach with limited digital involvement in the African continent. Conclusions: World Heart Day and Afib awareness month present a compelling case study of vast digital impact and the effectiveness of targeted campaigning using specific themes and keywords. Though the efforts of the backing organizations are commended, planning and collaboration are needed to further widen the reach of Afib awareness month.

Current realities of home blood pressure monitoring from physicians' perspectives: results from Asia HBPM survey 2020.

Uncontrolled hypertension is a significant problem in many parts of Asia. Effective management is essential to reduce the burden of hypertension. Home blood pressure monitoring (HBPM) is a promising tool that can aid in the diagnosis and management of hypertension. Experts from 11 countries/regions in Asia conceptualized a large-scale survey to examine the current realities of HBPM. A cross-sectional survey was conducted among health care professionals from China, India, Indonesia, Japan, Malaysia, the Philippines, Singapore, South Korea, Taiwan, Thailand, and Vietnam between November 2019 and June 2021. Physicians' responses were summarized using descriptive statistics. A total of 7945 physicians participated in the survey. Among all respondents, 50.3% and 33.5% viewed HBPM as highly recognized by physicians and patients in their country/region, respectively. Lack of understanding of HBPM and concern with the accuracy and reliability of HBPM devices were identified as key barriers to HBPM recognition. Nearly all physicians (95.9%) reported recommending HBPM to their patients; however, they reported less than 50% of their patients measured home blood pressure (HBP). Among physicians who recommended HBPM, only 22.4% and 54.1% cited HBP diagnostic threshold values and timing of taking antihypertensive drugs that were consistent with available guidelines, respectively. The survey reveals that the recognition of HBPM as a valuable tool to diagnose and manage hypertension is suboptimal in most parts of Asia. Despite high recommendation of HBPM to hypertensive patients by physicians, there are considerable discrepancies between guidelines recommendations and practice realities. The recognition of HBPM as a valuable tool for the diagnosis and management of hypertension is suboptimal among both physicians and patients in Asia. A clear and consistent guidance for proper HBPM practice and use of validated and calibrated HBP monitors are among the top priorities to support the integration of HBPM into daily patient care. HBPM: home blood pressure monitoring, HBP: home blood pressure.

Prevalence and predictors of lower extremity atherosclerotic disease amongst high-risk patients using ankle brachial index.

INTRODUCTION: The prevalence of lower extremity artery disease (LEAD) continues to increase worldwide. This is expected to translate into logarithmic rise in lower-limb amputations especially in the developing world. Majority of patients suffering from LEAD remain asymptomatic until late and are vulnerable to limb-threatening complications unless actively screened and treated. METHODS: This was a prospective, single-center, observational study to determine the prevalence and predictors of LEAD. Patients with known atherosclerotic vascular disease (but not known LEAD) or those at risk were enrolled. All underwent ankle brachial index (ABI) measurement as per the standard protocol. A threshold of ABI ≤0.90 was taken to diagnose LEAD. RESULTS: A total of 1000 patients were enrolled. The mean age of the group was 61.4 ± 10.0 years and the prevalence of LEAD was 10.2%. Amongst those who had LEAD, the majority of patients (69.6%) had no symptoms. The prevalence of LEAD in diabetic population in our study was 13.2% and it was 30.9% in coronary artery disease patients . Factors independently linked to LEAD on regression analysis included advanced age, presence of diabetes, smoking history, lower serum HDL and a lower ejection fraction. CONCLUSIONS: The vast majority of patients suffering from LEAD are asymptomatic. Early diagnoses and institution of appropriate medical and physical therapy can prevent excess morbidity and mortality due to LEAD. Factors independently linked to LEAD are advanced age, presence of diabetes, smoking history, lower serum HDL and a lower ejection fraction. The presence of either of these should signal undertaking of appropriate steps to unmask underlying LEAD.

Awareness and recommendation of home blood pressure measurement among physicians in India: Results from Asia HBPM survey 2020.

BACKGROUND: Awareness of hypertension and blood pressure (BP) control rates are still low in India. Home blood pressure monitoring (HBPM) is recognized as a valuable tool to diagnose and support hypertension treatment including the prevention of cardiovascular diseases(CVD) and target organ damage. We explored the prevailing knowledge and current recommendation of HBPM in daily practice by physicians in India. MATERIALS AND METHODS: As part of Asia HBPM Survey 2020, a cross-sectional survey was conducted among healthcare providers from India between June 2020 to June 2021. The questionnaire consisted of 37 questions and sub-questions related to HBPM awareness and recommendations to patients. RESULTS: A total of 832 physicians participated in the survey. Almost 83% were male, whereas age, specialty and workplace were well distributed. 31.3% of physicians instruct their patients to measure their BP before taking antihypertensive drugs, while around 30% of physicians gave no instructions. The reference value of hypertension diagnosis amongst the physicians was substantially low based on clinic BP (34.4%) and home BP (15.1%). Among physicians who manage hypertensive patients, nearly 88% recommend HBPM to their patients, however, only 34.9% of their patients own HBPM device and 30.4% of the patients measure their own BP at home. CONCLUSION: The survey reveals that HBPM instructions to the patients are either lacking or not well aligned with the local hypertension guidelines which may have led to the low HBPM use among patients. Clear and practical educational material and sessions are needed to improve the understanding of HBPM amongst physicians.

Autoimmune polyendocrine syndrome II presenting paradoxically as Takotsubo cardiomyopathy: a case report and reappraisal of pathophysiology.

BACKGROUND: Takotsubo cardiomyopathy (TCM) is a rare disease entity characterized by acute, non-ischemic, reversible myocardial dysfunction that mimics acute myocardial infarction. Activation and excessive outflow of sympathetic nervous system are believed to be central to the figure in the disease pathogenesis. Adrenocortical hormones potentiate the systemic actions of sympathetic nervous system and accordingly are essential for regulation of myocardial function. We present an unusual case of a middle-aged woman with primary adrenal insufficiency who presented paradoxically with TCM. CASE PRESENTATION: A 50-year-old woman with past history of hypothyroidism presented to emergency department with history of acute chest pain and syncope. There was no significant drug history or history of an emotional or physical stimulus prior to admission. Prominent pigmentation over the tongue and skin creases of hands were noted. On presentation, she was in shock and had ventricular tachycardia which required electrical cardioversion. The subsequent electrocardiogram demonstrated diffuse T-wave inversions with prolonged QTC. There was apical hypokinesia on echocardiogram, and cardiac biomarkers were elevated. There was persistent inotropic requirement. She had marked postural symptoms, and a postural blood pressure drop of 50 mm Hg was present. Initial laboratory parameters were significant for hyperkalemia (7.8 mEq/L) and hyponatremia (128 mEq/L). These findings prompted evaluation for adrenal insufficiency which was confirmed with appropriate tests. Autoimmune polyendocrine syndrome II was thus diagnosed based on the above findings. Coronary angiography revealed normal coronaries. The diagnoses of TCM was established in accordance with the International Takotsubo Diagnostic Criteria. She was started on stress dose steroid replacement therapy and improved dramatically. At one month of follow-up, the patient is asymptomatic, and there was normalization of her left ventricular function. CONCLUSIONS: Intricate relationship and interplay exist between the steroid hormones and catecholamines in the pathogenesis of TCM. Steroid hormones not only potentiate the actions of catecholamines, but they also regulate and channelize catecholaminergic actions preventing their deleterious effects on the cardiac tissue. Hence, both steroid deficiency and exogenous steroid replacement may precipitate TCM. Evidence from more such cases and larger perspective studies in future will further improve our understanding of this complex disease process and its myriad associations.

Concept, hardware development, and clinical trials of a Galinstan based Mercury free sphygmomanometer: Merkfree.

The aim of this work is to develop Merkfree-a mercury-free sphygmomanometer that looks, feels, and operates just like a traditional mercury sphygmomanometer (MS). For this we use Galinstan as a substitute for mercury, which is a non-toxic alloy of Gallium, Indium and Tin. Galinstan is nearly half as dense as mercury and sticks to class. To work with the lower density, we designed an enclosure and scale that is nearly double the length of MS. The issue of stickiness with glass was resolved by maintaining a small meniscus of a reducing agent in the measuring tube and tank of Merkfree. Clinical trials to validate the accuracy of Merkfree against MS and oscillometric sphygmomanometer (OS) were conducted over 252 patients. The results show a good correlation of the systolic and diastolic BP measurements from Merkfree with respect to MS and the OS. The mean absolute percentage error is less than 10% for both SBP and DBP. We also found that Merkfree has lower rounding-off errors compared to MS. Merkfree can be a viable alternative to mercury sphygmomanometer that can help achieve the goal of WHO in eliminating mercury from healthcare, while simultaneously making sure that gold standard technique of sphygmomanometry continues to be available to the clinicians.

Impact of a nurse-led teleconsultation strategy for cardiovascular disease management during COVID-19 pandemic in India: a pyramid model feasibility study.

OBJECTIVE: The COVID-19 pandemic necessitated the use of telemedicine to maintain continuity of care for patients with cardiovascular diseases (CVDs). This study aimed to demonstrate the feasibility of implementing a nurse-led teleconsultation strategy for CVD management during the COVID-19 pandemic in India and evaluated the impact of nurse-led teleconsultations on patient treatment satisfaction. DESIGN, SETTING AND PARTICIPANTS: We developed a two-stage teleconsultation strategy and tested the feasibility of implementing a nurse-led teleconsultation strategy to manage CVD in a northern state (Punjab) in India. A multidisciplinary team of experts developed the treatment protocol used for teleconsultations to manage CVD. Nurses were trained to provide teleconsultation, triaging of patients and referrals to the physicians. Patients with CVD who had an outpatient visit or hospitalisation between September 2019 and March 2020 at the Dayanand Medical College Hospital, Ludhiana, India, were contacted by phone and offered teleconsultations. Telemedicine strategy comprised: stage 1 nurse-led teleconsultations and stage 2 physician-led teleconsultations. Descriptive analysis was performed to report the proportion of patients triaged by the two-stage telemedicine strategy, and patient's clinical characteristics, and treatment satisfaction between the nurse-led versus physician-led teleconsultations. RESULTS: Overall, nurse-led stage 1 teleconsultations were provided to 12 042 patients with CVD. The mean (SD) age of the participants was 58.9 years (12.8), and men were 65.4%. A relatively small proportion of patients (6.3%) were referred for the stage-2 physician-led teleconsultations and of these only 8.4% required hospitalisations. During stage 1 nurse-led teleconsultations, patients were referred to the physicians due to uncontrolled diabetes (24.9%), uncontrolled hypertension (18.7%) and congestive heart failure (16.2%). The patient's treatment satisfaction was similar between the nurse-led versus physician-led teleconsultations (p=0.07). CONCLUSION: This study showed that a nurse-led telemedicine strategy is feasible to implement in a resource-constraint setting for triaging patients with CVD and reduces physician's burden.

Vascular access complications in patients undergoing veno-arterial ecmo and their impact on survival in patients with refractory cardiogenic shock: A retrospective 8-year study.

Introduction: Veno-arterial extracorporeal membrane oxygenation (ECMO) is well-recognized treatment modality for patients with refractory cardiogenic shock. Uncomplicated cannulation is a prerequisite and basis for achieving a successful outcome in ECMO. Vascular access is obtained either by surgical cut-down. Common vascular access complications are bleeding and limb ischemia. Objective: To evaluate cannulation technique, the incidence of vascular complications, and their impact on the outcome. Methods: A retrospective data analysis conducted on 95 patients receiving ECMO from 2013 to 2020 was done. The patients were divided into two groups: no vascular access complications (non-VAC group) and vascular access complications (VAC group). The groups were compared related to the hospital and ICU stays and blood transfusion. Results: The patients in both groups were demographically and clinically comparable. The Non-VAC group had 75 patients, whereas the VAC group had a total of 20 patients. The main complication observed in the VAC group was bleeding from the cannulation site which required more blood transfusion than the non-VAC group (6.8 ± 1.02 vs 4.2 ± 1.26). Limb ischemia was another complication seen in the VAC group (4.2%, n = 4). Two patients had delayed bleeding after decannulation. The overall average length of stay in the hospital was statistically similar in both the groups (22 days in the VAC group vs 18 days in the non-VAC group), but the average ICU stay was more in the VAC group compared to the non-VAC group (18 days vs 12.06 days). Conclusion: Bleeding and limb ischemia are the important vascular access site complications, which increase blood transfusion requirements, ICU stay, and overall hospital stay.

Effect of anti-platelet therapy on peri-operative blood loss in patients undergoing off-pump coronary artery bypass grafting.

Purpose: The purpose of this study was to review the effect of the pre-operative use of clopidogrel and aspirin on peri-operative bleeding, blood product transfusion, and resource utilization after coronary artery bypass grafting (CABG). Materials and Methods: A total of 1200 patients who underwent off-pump CABG (OPCABG) between 2010 and 2012 were retrospectively studied. Patients were divided into three groups: group 1: discontinued aspirin and clopidogrel 6 days prior to surgery (n = 468), group 2: discontinued both drugs 3 to 5 days prior to surgery (n = 621), and group 3: discontinued both drugs 2 days prior to surgery (n = 111). The bleeding pattern and blood product transfusion were studied and compared between the groups. Patients having history of other drugs affecting the coagulation profile, other organ dysfunction, on-pump CABG, and the combined procedure were excluded from the study. Results: Group 2 patients had a higher rate of bleeding and a reduced mean value of hemoglobin (Hb) as compared to other groups. The same results were seen in blood and blood product transfusion. Patients of group 2 and group 3 were associated with higher blood loss in terms of drainage at 12 and 24 hours. Post-operatively, this was statistically significant. Re-exploration was statisitically significant in group 3 patients (9.01%) than in group 2 (2.58%) and group 1 (1.07%) patients. Conclusion: The pre-operative use of clopidogrel and aspirin in patients undergoing OPCABG showed limited clinical benefits; however, its use significantly increased the risk of bleeding and blood transfusion, thus increasing morbidity and resource utilization. Hence, clopidogrel and aspirin should be stopped at least 6 days prior to surgery.

Recent advances in low-cost, portable automated resuscitator systems to fight COVID-19.

World is fighting one of its greatest battle against COVID-19 (a highly infectious disease), leading to death of hundreds of thousands of people around the world, with severe patients requiring artificial breathing. To overcome the shortage of ventilators in medical infrastructure, various low-cost, easy to assemble, portable ventilators have been proposed to fight the ongoing pandemic. These mechanical ventilators are made from components that are generally readily available worldwide. Such components are already associated with day-to-day gadgets or items and which do not require specialized manufacturing processes. Various designs have been proposed, focussing on meeting basic requirements for artificial ventilation to fight the ongoing pandemic. But some people are against the usage of these mechanical ventilators in real-life situations, owing to poor reliability and inability of these designs to meet certain clinical requirements. Each design has its own merits and demerits, which need to be addressed for proper designing. Therefore, this article aims to provide readers an overview of various design parameters that needs to be considered while designing portable ventilators, by systematic analysis from available pool of proposed designs. By going through existing literature, we have recognized multiple factors influencing device performance and how these factors need to be considered for efficient device operation.

Impact of long duration wearing of N95 masks on cardiorespiratory system and subjective sensations of health-care workers during COVID-19 era.

Background and Aims: N95 mask being an essential element of personal protective equipment to be worn by health-care workers (HCWs) may lead to adverse effects and physiological stress as HCWs have to wear it for prolonged hours. Therefore, we planned to conduct a study in our intensive care unit staff to look for the effects of N95 masks on their health as well as to plan recommendations to ease them. Material and Methods: We conducted this study on our intensive care unit nursing staff and HCWs. We noted their oxygen saturation and heart rate at baseline as well as after 1 h, 2 h, 3 h, and 6 h of duty along with their subjective sensations. Institutional ethical clearance for the same was taken. Collected data were entered in MS Excel database and analyzed using SPSS version 20.0. Fisher's Z test was applied for comparing proportion and analysis of variance for comparing two means. Results: One hundred and nine HCWs participated in this, out of which 93 (85.3%) were females and 16 (14.7%) were males. Eighty-four (77.1%) participants were below 40 years. Twenty-three participants (21.1%) were overweight and 37 (33.9%) were obese. There was no significant drop in saturation and rise in heart rate during these hours. Conclusions: On comparing subjective sensations of HCWs, our study found that feeling of uneasiness was found more in less than 40 years age group as compared to more than 40 years. N95 masks were found to have no impact on cardiovascular system and do not lead to hypoxia while working routinely even for prolonged hours.