Measuring blood pressure without any devices

BACKGROUND: The traditional measurement of these vitals via physical examination has become challenging and the recent pandemic has accelerated trends towards telehealth and remote monitoring. Instead of going to the physician for checking Heart Rate, Oxygen Saturation (SPO2), Blood Pressure, Body Temperature and Respiration Rate it would be excellent if it could be measured at home. Vital signs monitors, also known as physiological parameter monitors, are electronic devices that measure and display biological information about patients under constant monitoring...

BACKGROUND: ModulHeart (Puzzle Medical Devices Inc) is a novel percutaneous flow entrainment pump anchored in the descending aorta. The current study evaluates the hemodynamic effect of ModulHeart support and its impact on cerebral, myocardial, and renal blood flow. METHODS: ModulHeart was implanted in the descending aorta of four healthy calves. A ramp protocol (2000 RPM increments) was performed with the pump operating at five different speeds from 14 000 to 22 000 RPM...

BACKGROUND: Since the COVID-19 pandemic, there has been a boost in the digital transformation of the human society, where wearable devices such as a smartwatch can already measure vital signs in a continuous and naturalistic way; however, the security and privacy of personal data is a challenge to expanding the use of these data by health professionals in clinical follow-up for decision-making. Similar to the European General Data Protection Regulation, in Brazil, the Lei Geral de Proteção de Dados established rules and guidelines for the processing of personal data, including those used for patient care, such as those captured by smartwatches...

BACKGROUND: Automatic chest compression devices (ACCDs) can promote high-quality cardiopulmonary resuscitation (CPR) and are widely used worldwide. Early application of automated external defibrillators (AEDs) along with high-quality CPR is crucial for favorable outcomes in patients with cardiac arrest. Here, we developed an automated CPR (A-CPR) apparatus that combines ACCD and AED and evaluated its performance in a pilot animal-based study. METHODS: Eleven pigs (n = 5, A-CPR group; n = 6, ACCD CPR and AED [conventional CPR (C-CPR)] group) were enrolled in this study...

INTRODUCTION: Vascular reconstruction requires technical expertise and is often time consuming. As a novel alternative to traditional hand-sewn vascular anastomoses, the VasoLock (VL), is a nonabsorbable, sutureless anastomosis device with traction anchors designed to hold free artery ends together. These anchors do not penetrate the vessel wall but adhere by leveraging the elasticity of the vessels to fasten blood vessels together. This pilot study assesses the performance and patency of this novel device in a porcine model of femoral artery injury...

PURPOSE: C-REX is a novel instrument for creating stapleless colorectal anastomosis by compression. The aim of this study was to evaluate the feasibility and effectiveness of C-REX in open and laparoscopic high anterior resections. METHODS: A prospective clinical safety study on 21 patients reconstructed with C-REX colorectal anastomosis following high anterior resection of the sigmoid colon using two different devices for intraabdominal (n = 6) or transanal (n = 15) placement of the anastomotic rings...

In response to the growing evidence that hypertension may play a significant role in the development of cardiovascular disease (CVD) in bonobos, the Great Ape Heart Project established a finger blood pressure (BP) monitoring protocol for zoo-housed bonobos. The ability to monitor BP without the use of anesthesia provides more opportunities to detect potential hypertension in its early stages allowing for therapeutic intervention that may slow the progression of CVD. No BP reference ranges exist for bonobos due to the lack of an established protocol, the difficulty of measuring BP in animals, and small sample size of zoo-housed bonobos...

Direct-to-consumer (DTC) tests can be defined as any in-vitro diagnostic (IVD) test or, more broadly, any medical test using an IVD or medical device, that is marketed directly to consumers without involvement of a health care provider (HCP). Examples are pregnancy tests, alcohol breath tests, blood pressure measurements (medical device), coagulation tests (INR), self-monitoring of blood glucose, continuous glucose monitoring (medical device), HIV tests, HPV tests, SARS-CoV-2 antigen tests, or genetic tests...

BACKGROUND: Implantation of continuous flow left ventricular assist devices (LVAD's) has been increasingly used in patients with advanced heart failure (HF). Little is known about the non-invasive hemodynamics and the relationship with adverse events in this specific group of patients. We aimed to identify any differences in non-invasive hemodynamics in patients with an LVAD in different age categories and to investigate if there is an association with major adverse events. METHODS: In this observational cross-sectional study, HF patients with a continuous flow LVAD were included...

Blood pressure (BP) measurement plays a critical role in cardiac stress testing and is most commonly assessed manually. The emphasis of social distancing during the COVID-19 pandemic has renewed the interest in and the need for an automated BP device for incremental exercise stress testing. We assessed the accuracy of a new automated blood pressure device specifically manufactured for cardiac stress testing. Thirty-five adults aged 35 ± 16 years were studied during an incremental stress test on the cycle ergometer...

BACKGROUND/OBJECTIVE: In recent years, treatment of heart failure patients has proved to benefit from implantation of pressure sensors in the pulmonary artery (PA). While longitudinal measurement of PA pressure profoundly improves a clinician's ability to manage HF, the full potential of central venous pressure as a clinical tool has yet to be unlocked. Central venous pressure serves as a surrogate for the right atrial pressure, and thus could potentially predict a wider range of heart failure conditions...

Masked hypertension is defined by office blood pressure (BP) in the controlled-BP range while out-of-office BP measured by ambulatory BP monitoring (ABPM) and home BP monitoring (HBPM) is in the uncontrolled range. However, diagnosis of masked hypertension may differ if assessed by different out-of-office BP indices. This study aims to investigate the diagnostic agreement of masked uncontrolled hypertension (MUHT) detected by ABPM indices (ABPM-MUHT) and HBPM indices (HBPM-MUHT) using the same all-in-one device (TM2441; A&D Company)...

OBJECTIVE: Intradialytic hypotension and exaggerated fluid removal during hemodialysis (HD) are related to organ ischemia and resultant increased morbidity and mortality. Fluid overload and congestion due to less than optimal fluid removal, are associated with adverse outcomes. Previous studies performed did not assess clinical decision making that is based mainly on hemodynamics. Thus, our aim was to recruit only new HD patients, and to examine the effect of bioimpedance based management within the first 90 days, a critical timeframe in dry weight determination and HD prescription...

OBJECTIVE: To evaluate the effect of two workplace isometric exercise interventions on blood pressure in hypertensive adults. DESIGN AND METHOD: A randomized controlled multicenter clinical trial conducted in hypertensive (>130 mmHg systolic blood pressure (SBP)) 35 to 65 years old in work places in Colombia. Participants were assigned to either of two interventions: isometric handgrip dynamometer training at 30% of maximum strength (HGD) or wall squat (WS), or to a control group following standard recommendations...

OBJECTIVE: To compare blood pressure (BP) values from conventional sequential measurements against average mode measurements. DESIGN AND METHOD: We selected two samples of individuals with non-treated suspected hypertension. A trained nurse filled a standardized questionnaire with demographic, clinical data, measured BP, weight, height, and waist circumference, and installed an AMBP. We conducted sequential measurements in both. In one, we used an automatic device without average mode (Microlife-BP3BTOA (Onbo Electronics Co...

Inspiratory muscle warm-up (IMW) has been used as a resource to enhance exercises and sports performance. However, there is a lack of studies in the literature addressing the effects of different IMW loads (especially in combination with a shorter and applicable protocol) on high-intensity running and recovery phase. Thus, this study aimed to investigate the effects of three different IMW loads using a shorter protocol on mechanical, physiological and muscle oxygenation responses during and after high-intensity running exercise...

BACKGROUND: E-learning based laboratory classes can replace or enhance in-classroom laboratories. They typically offer temporal flexibility, self-determined learning speed, repeatability and do not require supervision or face-to-face contact. The aim of this feasibility study was to investigate whether the established in-classroom laboratory class on the baroreceptor reflex (BRR) can be transformed into a new e-learning based asynchronous laboratory class for untrained, non-supervised students without medical equipment...

OBJECTIVE: To determine the diagnostic accuracy of three tests-radial pulse palpation, an electronic blood pressure monitor and a handheld single-lead ECG device-for opportunistic screening for unknown atrial fibrillation (AF). DESIGN: We performed a diagnostic accuracy study in the intention-to-screen arm of a cluster randomised controlled trial aimed at opportunistic screening for AF in general practice. We performed radial pulse palpation, followed by electronic blood pressure measurement (WatchBP Home A) and handheld ECG (MyDiagnostick) in random order...

<b>Background and Objective:</b> Caffeine is the most widely consumed stimulant in the world with 80% of it consumed in the form of coffee. It is used as an ingredient in pharmaceuticals, owing to the high content of nutrients and antioxidants, including phenols and polyphenols, that have cardioprotective properties. This study aimed to investigate and compare the effects of caffeinated and decaffeinated coffee on blood pressure and heart rate. <b>Materials and Methods:</b> In this study, experimental days were divided over 2 weeks: February 21 to March 6...

BACKGROUND: . Many of the sensory receptors that encode touch, temperature, pain, and visual or auditory cues are well known. These exteroceptive receptors allow us to respond to external threats from the environment. The interoceptive sensory receptors that allow us to identify threats within the internal milieu, such as changes of our heart rate brought about by fright, gastric fullness with satiety, or breathing difficulty from increased respiratory resistance are not known. We postulated that the mechanosensitive piezo receptors in the heart are responsible for cardiac interoception in humans...