Clinical Examination of Cardiovascular System For Medical Students
Discussion on blood pressure is not included here as a separate topic is dedicated to it.
Though the most commonly examined pulse is the radial, to check some of the characteristics, a more proximal pulse like the brachial or carotid needs to be examined. Following parameters of the pulse are routinely documented: 1. The rate: Normal rate in adult is 60-100 per minute. It is higher in children. Younger the child, higher the pulse rate.
Rhythm: Regular and irregular rhythms are possible. Mild variation with respiration is called respiratory sinus arrhythmia, with higher rate in inspiration. Respiratory sinus arrhythmia may...
Source: Cardiophile MD - May 30, 2023 Category: Cardiology Authors: Johnson Francis Tags: General Cardiology Source Type: blogs
Nanoparticles Get Lymphatic Vessels Pumping
Researchers at the Georgia Institute of Technology have developed a nanotechnological solution for lymphedema, a failure of the lymphatic system that results in uncomfortable and irreversible fluid retention. Previous research efforts have focused on trying to grow new lymphatic vessels, but these researchers have taken a different approach, and instead engineered a drug delivery technology that can directly target sluggish lymphatic vessels and kickstart their pumping action.
Near infrared video demonstrating enhanced lymphatic contractile activity in model delivered drug loaded nanoparticles.
To achieve this, the r...
Source: Medgadget - March 27, 2023 Category: Medical Devices Authors: Conn Hastings Tags: Medicine Nanomedicine News Oncology Surgery Source Type: blogs
Weekly Overseas Health IT Links – 29th October, 2022.
This report presents CDC findings on telehealth use trends in 2021. It includes data from the National Health Interview Survey, a nationally representative household survey conducted throughout the year by the National Center for Health Statistics. -----https://www.usnews.com/news/health-news/articles/2022-10-13/women-older-adults-more-likely-to-use-telemedicine-in-2021Who Used Telemedicine in 2021?New data shows which groups have been most likely to use a health care option popular during the pandemic.By Christopher WolfOct. 13, 2022, at 12:01 a.m.More than 1 in 3 adults used telemedicine in the past year in 2021, ac...
Source: Australian Health Information Technology - October 29, 2022 Category: Information Technology Authors: Dr David G More MB PhD Source Type: blogs
Soft Robotic Sleeve for Lymphedema Treatment
Researchers at the University of Waterloo in Canada created a soft robotic sleeve to treat lymphedema. Lymphedema involves fluid accumulation in tissues because of damage to the lymph system. This wearable sleeve combines a microfluidic controller and soft robotic components that apply compression to the arm to reduce and control fluid accumulation. The small components avoid the need for a stationary pump to inflate the sleeve and allow for tetherless use during regular activities.
Lymphedema often strikes breast cancer patients, who frequently require surgical removal of lymph nodes in the armpit. This can cause fluid...
Source: Medgadget - May 6, 2022 Category: Medical Devices Authors: Conn Hastings Tags: Materials Oncology Rehab lymphedema UWaterloo Source Type: blogs
Mobility-Enabled Compression Device for Lymphedema: Interview with CEO of Koya Medical
Koya Medical, a medtech company based in California, has developed the Dayspring active compression system for the treatment of lymphedema. The company received FDA clearance for the use of Dayspring on the upper extremities in June 2020, and just recently announced 510(k) clearance for use in the lower extremities.
Lymphedema involves impaired lymphatic drainage resulting in painful swelling, and typically occurs after surgical procedures, such as the removal of cancerous lymph nodes. At present, the condition is treated through manual manipulation of the lymph system by a healthcare professional or using a compression...
Source: Medgadget - June 23, 2021 Category: Medical Devices Authors: Conn Hastings Tags: Exclusive Surgery Vascular Surgery Source Type: blogs
General examination – hands and feet
General examination – hands and feet
Cyanosis and pallor can be noted in the tips of the digits in both central and peripheral cyanosis. Severe jaundice may be visible in the palms and soles, especially in small infants.
Clubbing of digits may be noted in cyanotic heart diseases as well many other non cardiac conditions. In clubbing, initially there is fluctuation of nail bed (Grade 1) followed by obliteration of angle between nail and adjacent skin fold (Lovibond angle – Grade 2). Later there is curvature of the nails (parrot beaking – Grade 3). Grade 4 or hypertrophic osteoarthropathy is not common in cardiova...
Source: Cardiophile MD - September 22, 2020 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: HBC Heberden’s nodes Janeway lesions Lovibond angle Osler’s nodes Pitting edema Polydactyly Source Type: blogs
Microsure MUSA Robot Used for First Time on Real Patients
In a world first, clinicians at Maastricht University have used a robot to perform “supermicrosurgeries”, which involved operating on vessels as small as 0.3 mm in diameter. The procedures were conducted on women with lymphedema, a condition that arose as a result of breast cancer, whose lymphatic vessels were connected to veins to provide a drain for lymphatic fluids that built up.
This is normally very difficult, as working on such tiny vessels requires extremely stable hands. To overcome this, the researchers used the MUSA robot from Microsure, a Dutch firm, that was recently cleared in the EU. The device...
Source: Medgadget - February 12, 2020 Category: Medical Devices Authors: Medgadget Editors Tags: Plastic Surgery Vascular Surgery Source Type: blogs
SOZO System FDA Cleared for Protein Calorie Malnutrition Assessment
ImpediMed, a company based in Carlsbad, California, won clearance from the FDA for its SOZO device to assess protein calorie malnutrition. The condition can be common in cancer patients, so recognizing it before obvious symptoms, such as muscle wasting, appear is very important. Moreover, quite a few patients who don’t have cancer are malnourished for other reasons.
The SOZO device relies on ImpediMed’s novel bioimpedance spectroscopy technology that sends electric currents through the body and measures how they are affected by it. The SOZO can quickly scan through 256 different frequencies between 3 kHz an...
Source: Medgadget - December 13, 2019 Category: Medical Devices Authors: Medgadget Editors Tags: Medicine Sports Medicine Source Type: blogs
Fight Aging! Newsletter, September 23rd 2019
Discussion of Developmental Effects on Aging
Microtubule Function and Longevity in Nematodes
Quantifying the Correlation Between Poverty and Faster Pace of Aging
Matthew O'Connor Presenting on Underdog Pharmaceuticals at Undoing Aging 2019
https://www.fightaging.org/archives/2019/09/matthew-oconnor-presenting-on-underdog-pharmaceuticals-at-undoing-aging-2019/
Here Matthew O'Connor of the SENS Research Foundation talks about the research that led to founding of Underdog Pharmaceuticals, a biotech startup incubated by the foundation to commercialize a means of targeting 7-ketocholesterol in atheroscle...
Source: Fight Aging! - September 22, 2019 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Reviewing the Aging of Lymphatic Vessels
The lymphatic system a part of the broader circulatory system and has many similarities to the cardiovascular system of blood vessels. The lymphatic system is also a network of vessels, transporting various necessary cells and substances, and subject to processes of aging that degrade function and thereby cause issues. While circulation of fluid is an important function of the lymphatic system, and conditions such as lymphedema arise when it runs awry, the role of lymphatic vessels in the function of the immune system is arguably far more vital.
Immune cells must be able to rapidly travel the body and locally coord...
Source: Fight Aging! - September 20, 2019 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, June 17th 2019
In this study, analysis of antioxidant defense was performed on the blood samples from 184 "aged" individuals aged 65-90+ years, and compared to the blood samples of 37 individuals just about at the beginning of aging, aged 55-59 years. Statistically significant decreases of Zn,Cu-superoxide dismutase (SOD-1), catalase (CAT), and glutathione peroxidase (GSH-Px) activities were observed in elderly people in comparison with the control group. Moreover, an inverse correlation between the activities of SOD-1, CAT, and GSH-Px and the age of the examined persons was found. No age-related changes in glutathione reductase activiti...
Source: Fight Aging! - June 16, 2019 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Lymph Node Organoids Integrate into the Lymphatic System and Restore Function
The lymphatic system is vital to the correct operation of the immune response: lymph nodes are where immune cells communicate with one another in order to direct the response to invading pathogens and other threats. Unfortunately lymph nodes deteriorate with age, becoming inflammatory and fibrotic, no longer able to host the necessary passage and communication of immune cells. Researchers have demonstrated that, at least in late life, this can prevent improvements elsewhere in the aged immune system from producing the expected benefits in the immune response. What use extra immune cells or better immune cells if those cell...
Source: Fight Aging! - June 11, 2019 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Creating an Easier Path for Head/Neck Cancer Patients
Recently, an article was published in the Leader about my work with patients with head or neck cancer. The response has been great, with the most-asked question being about the pathway I created to help patients and caregivers navigate through and receive improved access to care.
How did I create this pathway?
The first thing I did was listen to patients and caregivers discuss what they wished they knew before treatment started. After years of listening, I realized something had to change for them. From this realization came the idea of designing a pathway so all treating partners—as well as patients and caregivers—und...
Source: American Speech-Language-Hearing Association (ASHA) Press Releases - February 4, 2019 Category: Speech-Language Pathology Authors: Stacey Brill Tags: Health Care Slider Speech-Language Pathology Dysphagia Source Type: blogs
Creating an Easier Path for Patients With Head/Neck Cancer
Recently, an article was published in the Leader about my work with patients with head or neck cancer. The response has been great, with the most-asked question being about the pathway I created to help patients and caregivers navigate through and receive improved access to care.
How did I create this pathway?
The first thing I did was listen to patients and caregivers discuss what they wished they knew before treatment started. After years of listening, I realized something had to change for them. From this realization came the idea of designing a pathway so all treating partners—as well as patients and caregivers—und...
Source: American Speech-Language-Hearing Association (ASHA) Press Releases - February 4, 2019 Category: Speech-Language Pathology Authors: Stacey Brill Tags: Health Care Slider Speech-Language Pathology Dysphagia Source Type: blogs
Flexitouch Plus Released for Treating Lymphedema Symptoms
Lymphedema is a disease in which fluid is retained in the legs, arms, and other parts of the body, resulting in pain, discomfort, and even disability. A new device from Tactile Medical, a company out of Minneapolis, Minnesotta, is designed to activate the lymphatic system so as to help move fluids away from where they’ve gotten trapped.
The Flexitouch Plus, cleared by the FDA last year, consists of a blanket with dozens of individual air pockets and a controller pump that sequentially inflates and deflates the pockets. The result is a pressure wave over the affected part of the body that works like a programmed and...
Source: Medgadget - April 16, 2018 Category: Medical Devices Authors: Editors Tags: Surgery Vascular Surgery Source Type: blogs
