Dr. S. Venkatesan MD

NOVEMBER 29, 2023

Many times , an Innocuous question poses a real challenge, to our life time understanding of circulatory physiology. This again has more dynamic and interesting changes especially in the diastolic BP.Read Guyton’s physiology or the good old Rushmer’s hemodynamics monograph, linked in this site elsewhere. Reference 1.Wahba

Blood Pressure 52

Blood Pressure Hypertension POTS Physiology 52

DAIC

JANUARY 8, 2025

Obstructive sleep apnea carries significant physiological and psychological impacts on health. The key secondary objective is to quantify blood pressure throughout the night using continuous BP monitoring during performance of a standard sleep study without the benefit of CPAP.

Blood Pressure 52

Blood Pressure Hypertension Kidney Disease BMI 52

Medical Xpress - Cardiology

DECEMBER 9, 2024

Simultaneously, physiological responses essential for stress adaptation are triggered in the body. Cardiovascular regulation, including changes in blood pressure and heart rate, is a critical stress response. Under stress, animals change their behavior, such as through "fight or flight" or "freezing" response.

Blood Pressure 70

Blood Pressure Physiology 70

Physiologically Speaking

DECEMBER 22, 2023

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. Clinically, about 1/3 of adults have metabolic syndrome — a cluster of conditions including abdominal obesity, high blood pressure, high blood glucose, high triglycerides, and low HDL cholesterol.

Exercise 52

Exercise Physiology Blood Pressure Cholesterol 52

Physiologically Speaking

DECEMBER 22, 2023

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. Clinically, about 1/3 of adults have metabolic syndrome — a cluster of conditions including abdominal obesity, high blood pressure, high blood glucose, high triglycerides, and low HDL cholesterol.

Exercise 52

Exercise Physiology Blood Pressure Cholesterol 52

Hypertension Journal

SEPTEMBER 28, 2023

This may be partly due to the disproportionate incidence of salt sensitivity of blood pressure in Black people, a cardiovascular risk factor that is independent of blood pressure and has no proven therapy.

Blood Pressure 40

Blood Pressure Physiology Hypertension Risk Factors 40

Physiologically Speaking

AUGUST 9, 2024

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. Resting metabolic rate, overnight heart rate, and overnight systolic and diastolic blood pressure were unaltered by carbohydrate or sugar restriction. No surprises here. That’s a sweet conclusion.

Physiology 69

Physiology Diet Cholesterol Biomarkers 69

Hypertension Journal

MARCH 11, 2024

BACKGROUND:Potassium (K+)-deficient diets, typical of modern processed foods, increase blood pressure (BP) and NaCl sensitivity. Hypertension, Ahead of Print.

Blood Pressure 40

Blood Pressure Diet Physiology Hypertension 40

Stroke Journal

JANUARY 30, 2025

Introduction:Autoregulation-guided blood pressure (BP) management offers a promising alternative to targeting fixed BP thresholds after acute ischemic stroke. Stroke, Volume 56, Issue Suppl_1 , Page A117-A117, February 1, 2025.

Blood Pressure 40

Blood Pressure Physiology Strokes Stroke 40

Medical Xpress - Cardiology

JULY 2, 2024

Exercise testing can serve as a powerful physiologic probe to unmask subclinical cardiovascular abnormalities well before disease onset. For example, blood pressure changes during exercise (EBP) can reveal a latent tendency toward future development of hypertension.

Hypertension 52

Hypertension Blood Pressure Exercise Physiology 52

DAIC

JULY 29, 2024

It encompasses devices designed to mechanically unload the failing heart and augment cardiac output in the setting of dangerously low blood pressure, providing a bridge to recovery over a period of hours to days. MCS is one of the fastest growing markets in interventional cardiology. Magenta Medical Ltd.

Cardiogenic Shock 105

Cardiogenic Shock Blood Pressure Technology Aortic valve 105

Hypertension Journal

DECEMBER 5, 2024

Several microRNAs (miRNAs) strongly influence blood pressure and the development of hypertension by modulating vascular, renal, and other physiological mechanisms. In addition, miRNAs may contribute to the genetic regulation of blood pressure.

Hypertension 40

Hypertension Blood Pressure Physiology Research 40

Physiologically Speaking

JUNE 7, 2024

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. Prolonged bouts of sitting negatively contribute to health by causing endothelial dysfunction, blood pressure elevations, and glucose dysregulation.

Physiology 52

Physiology Exercise Blood Pressure Outcomes 52

Stroke Journal

FEBRUARY 1, 2024

Introduction:Immediately after AIS onset, blood pressure variability (BPV) arises as the result of a complex interplay between brain and systemic physiological hemodynamic responses. Stroke, Volume 55, Issue Suppl_1 , Page ATP190-ATP190, February 1, 2024.

Blood Pressure 40

Blood Pressure Hospital Strokes Stroke 40

Physiologically Speaking

APRIL 5, 2024

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. Overnight, brain activity and other physiological metrics were measured using a technique known as polysomnography (PSG). During REM, our brain activity, breathing, and heart rate and blood pressure increase.

Physiology 52

Physiology Blood Pressure Research Outcomes 52

Physiologically Speaking

MARCH 15, 2024

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. For example, blood pressure and cortisol rise in the morning upon awakening to prepare us for the day that lies ahead. Journal of Applied Physiology. That’s what a new study suggests. 00632.2023.

Exercise 52

Exercise Physiology Blood Pressure Outcomes 52

Hypertension Journal

DECEMBER 28, 2023

BACKGROUND:Small arteries exhibit resting tone, a partially contracted state that maintains arterial blood pressure. Perivascular adipose tissue (PVAT) has been shown to exert anticontractile effects on the blood vessels. This effect relaxes small arteries and regulates blood pressure. Hypertension, Ahead of Print.

Blood Pressure 51

Blood Pressure Physiology Hypertension 51

Hypertension Journal

SEPTEMBER 6, 2023

Despite a major research focus on organ systems and these effector mechanisms causing NaCl-induced increases in arterial blood pressure, relatively less research has been directed at elucidating how NaCl is sensed by various tissues to elicit these downstream effects.

Physiology 40

Physiology Blood Pressure Hypertension Cardiovascular Disease 40

MIBHS

JANUARY 31, 2025

The Role of Wearable Technology in Heart Health Wearable tech is designed to monitor physiological data and provide actionable insights to users. For heart health, these devices use advanced sensors to track metrics like heart rate, blood oxygen levels, and even irregular heart rhythms.

Heart Rhythm 52

Heart Rhythm Technology AFIB Exercise 52

Hypertension Journal

NOVEMBER 9, 2023

Moreover, despite the availability of antihypertensive medications for the management of blood pressure, treatments that address the full spectrum of the pathophysiological defects underpinning hypertension remain to be identified. Nevertheless, the pathogenesis of hypertension has not been fully elucidated.

Hypertension 40

Hypertension Blood Pressure Physiology Risk Factors 40

Journal of the American Heart Association

APRIL 7, 2025

At age 32 years, participants underwent a physiological assessment, and CVH was estimated using Life's Essential 8 metrics: body mass index, blood pressure, cholesterol, glycated hemoglobin, sleep, smoking, and physical activity (diet not available).

Blood Pressure 45

Blood Pressure Diet Cholesterol Physiology 45

Journal of Cardiovascular Pharmacology

FEBRUARY 27, 2025

Serotonin (5-hydroxytryptamine, 5-HT) at low plasma concentrations reduces blood pressure and dilates some skeletal muscle arterioles in the rat. We hypothesized that the 5-HT7 receptor is essential for both 5-HT-induced changes in blood pressure and skeletal muscle arteriolar function. All rights reserved.

Blood Pressure 40

Blood Pressure Arterioles Exercise Physiology 40

Open Heart

MAY 23, 2024

Background The relationship between speckle tracking assessed global longitudinal strain (GLS) and Doppler-based echocardiography with basic physiological markers of cardiac function derived from pressure-volume loops is poorly elucidated. and r 2 =0.49, respectively).

Cardiogenic Shock 52

Cardiogenic Shock Blood Pressure Cardiac Function Physiology 52

Stroke: Vascular and Interventional Neurology

MARCH 6, 2024

Susceptibility MMD genes, including ring finger protein 213/mysterin andGUCY1A3, have also been linked to extracranial vascular disease and increased systolic blood pressure. Blood pressure measurements and antihypertensive agent use were recorded pre‐ and postoperatively. After a mean follow‐up of 34.3±18.1

Hypertension 40

Hypertension Blood Pressure Pediatrics Kidney Disease 40

MIBHS

NOVEMBER 30, 2023

However, prolonged exposure to stress can lead to persistently high levels of these hormones, contributing to increased heart rate, elevated blood pressure, and inflammation, all of which raise the risk of heart disease. People with anxiety often experience elevated heart rates and increased blood pressure.

Blood Pressure 52

Blood Pressure Heart Disease Blood Clot Physiology 52

Hypertension Journal

NOVEMBER 30, 2023

A complex network of genetic, epigenetic, physiological, and environmental components regulates blood pressure (BP), and any dysregulation of this network may result in hypertension. Hypertension, Ahead of Print. Essential hypertension, a multifaceted disorder, is a worldwide health problem.

Hypertension 40

Hypertension Blood Pressure Physiology 40

All About Cardiovascular System and Disorders

MAY 2, 2024

It is a physiological adaptation helping athletes perform physical tasks better than non-athletes. Systemic vascular resistance falls, but slight to moderate increase in blood pressure can occur due to the increased cardiac output. The upper limit of physiologic cardiac hypertrophy in highly trained elite athletes.

Exercise 40

Exercise Cardiomyopathy Blood Pressure Physiology 40

Hypertension Journal

FEBRUARY 22, 2024

These data suggest that, during physiological stress, sympathetic reactivity is intact, but the peripheral pathway for sympathetic vasoconstriction may be impaired in HFpEF. Furthermore, patients had preserved sympathetic reactivity but attenuated diastolic BP responses during the cold pressor test.

Preserved Ejection Fraction 40

Preserved Ejection Fraction Heart Failure Blood Pressure Physiology 40

Dr. S. Venkatesan MD

JULY 1, 2024

The hemodynamic of the Giraffe’s vascular system is a good physiologic model of circulation, that defy gravity. Maloney, Duncan Mitchell The origin of mean arterial and jugular venous blood pressures in giraffes The Journal of Experimental Biology 209, 2515-2524 2.Aalkjær Reference 1. Graham Mitchell Shane K.

Cardiomyopathy 52

Cardiomyopathy Aortic valve Aortic Blood Pressure 52

Dr. Smith's ECG Blog

JANUARY 5, 2024

And, the drug does provide physiologic benefits for a patient with an acute cardiac event ( ie, it helps to relieve anxiety as well as pain — which may decrease activation of autonomic nervous system activity — often resulting in reduced heart rate, blood pressure, venous return and myocardial oxygen demand — Murphy et al: StatPearls, 2023 ).

Angina 120

Angina Plaque Document Stents 120

Wellnest

JANUARY 23, 2024

Nicotine and other harmful substances present in tobacco can lead to constriction of blood vessels, an increase in heart rate, and elevated blood pressure. Chronic stress triggers physiological responses that can adversely affect the cardiovascular system.

COVID-19 52

COVID-19 Cardiovascular Disease Risk Factors Blood Pressure 52

Physiologically Speaking

NOVEMBER 8, 2023

Physiologically Speaking is a reader-supported publication. It also supports blood vessel health and may reduce blood pressure. In this post, we’ll take a deep dive into the science of fasting and discuss whether time-restricted eating is “better” than calorie counting for health and weight loss.

Diet 52

Diet Cholesterol Physiology Blood Pressure 52

Dr. Smith's ECG Blog

JANUARY 9, 2024

AV synchrony and physiologic ventricular depolarization the hemodynamics improved. Lowering the back up rate (LRL) of the ICD/pacer allowed for an intrinsic rhythm with physiologic AV conduction and normal AV synchrony with resultant increase in stroke volume and cardiac outpt.

Tachycardia 119

Tachycardia Electrophysiology Atrial Flutter Ischemia 119

Wellnest

JUNE 26, 2023

By analyzing the same, it can accurately deduct the person’s age, gender, blood pressure, and smoking status. Using this data; the AI can further predict the patient’s cardiovascular disease risk using optic disks and blood vessels. The deep learning algorithm scans the patient’s rear interior wall of the eye (the fundus).

Cardiovascular Disease 52

Cardiovascular Disease Blood Pressure Patient Care Pharmacology 52

Dr. Smith's ECG Blog

NOVEMBER 19, 2016

The initial blood pressure was 80/palp with a heart rate of 104, respirations 20, oxygen saturations of 94% and a finger stick blood glucose of 268. In addition, the patient received 750 mL of fluid resuscitation with transient improvement of blood pressure.

Ischemia 40

Ischemia Cardiogenic Shock Aortic Stenosis 40

Dr. Smith's ECG Blog

FEBRUARY 6, 2023

He is placed on heparin drip, he will have IV beta-blocker and oral beta blocker for heart rate control and blood pressure management. The fact that it was delayed until late the next day is further indication that the treating team failed to appreciate the physiologic sequence of events associated with evolving OMI.

Chest Pain 52

Chest Pain Physiology Blog Stents 52

Physiologically Speaking

SEPTEMBER 20, 2024

Welcome to the Physiology Friday newsletter. Physiologically Speaking is a reader-supported publication. What physiological mechanisms make moderate to high levels of activity so favorable, especially in our modern environment? This week, I’m sharing one of my favorite articles I’ve ever written.

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Exercise Physiology Blood Pressure Obesity 114