Activate Now
 
ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Patient Insights into the Design of Technology to Support a Strengths-Based Approach to Health Care.

Greater intake of dietary omega-3 fatty acids associated with lower risk of diabetic retinopathy

SURVEY: Weight Management & Chronic Illness

Japanese green tea consumers have reduced risk of dementia

Researchers find herpes strain in the nervous system

Do Nothing, Accomplish Everything! The Connection Between Breathing and Healing

Nature Heals

Best Herbs to Help With Insomnia

Choline: Why You Should Eat Your Egg Yolks and Take Krill

Calcium, vitamin D supplementation associated improved stroke recovery

 
Print Page
Email Article

Pulse abnormalities at rest and during tilt test could be highly indicative screen for ME/CFS

  [ 17 votes ]   [ Discuss This Article ]
www.ProHealth.com • January 30, 2012


Article:
Chronic fatigue syndrome and impaired peripheral pulse characteristics on orthostasis - a new potential diagnostic biomarker
– Source: Physiological Measurement, Jan 25, 2012

By John Allen, et al.

[Note: To read the full text of this article free, click here. The best-known sign of orthostatic intolerance involves symptoms (e.g., weakness, faintness) in an upright position that can be relieved by lying prone.]

Abstract:
Autonomic nervous system dysfunction is frequently reported in chronic fatigue syndrome (CFS) with orthostatic intolerance, a common symptom that can be objectively assessed.

The frequent finding of autonomic dysfunction and symptoms on standing has the potential to provide a diagnostic biomarker in chronic fatigue.

In this study we explored the clinical value of non-invasive optical multi-site photoplethysmography (PPG) technology to assess cardiovascular responses to standing. [PPG is a quick, low-cost measurement of changes in pulsed skin blood volume using a small light probe that is placed on the surface of the skin.]

Multi-site PPG pulses were collected from tissue pads of the ears, fingers and toes of 14 patients with CFS and 14 age-matched sedentary subjects using a measurement protocol of a 10 min baseline (subject supine) followed by 3 min of tilting on a tilt table (head-up to 70 degrees).

Percentage change in pulse timing (pulse transit time, PTTf) and pulse amplitude (AMP) at each site were calculated using beat-to-beat pulse wave analysis.

A significant reduction in the overall pulse timing response to controlled standing was found for the CFS group (using summed absolute percentage change in pulse timing for ear, finger and toe sites, median change of 26% for CFS and 37% for control with p = 0.002).

There were no significant differences between subject groups for the pulse amplitude measure at any site. Changes in pulse amplitude with tilt were, however, weakly significantly and negatively correlated with fatigue severity (p < 0.05).

Receiver operating characteristic (ROC) analysis of timing measures produced an area under the curve of 0.81. Experimental linear discriminant classification analysis comparing both timing and amplitude measures produced an overall diagnostic accuracy of 82%.

Pulse wave abnormalities have been observed in CFS and represent a potential objective measure to help differentiate between CFS patients and healthy controls.

Source: Physiological Measurement, Jan 25, 2012. PMID:22273713, by Allen J, Murray A, Di Maria C, Newton JL. Microvascular Diagnostics, Regional Medical Physics Department, Freeman Hospital, Newcastle upon Tyne; UK NIHR Biomedical Research Centre in Ageing and Age-Related Diseases, Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK. [Email: Julia.newton@nci.ac.uk]





Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ Optimized Curcumin Longvida® FibroSleep™

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
Natural Pain Relief Supplements

Featured Products

Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function

Natural Remedies

Are You Obtaining the Proper Enzymes? Are You Obtaining the Proper Enzymes?
Herbal Inflammation Management for Whole Body Health Herbal Inflammation Management for Whole Body Health
Carry a Massage Therapist in Your Pocket Carry a Massage Therapist in Your Pocket
Secret Nutrient for Radiant Skin Secret Nutrient for Radiant Skin
Block food Cravings At Their Molecular Root Block food Cravings At Their Molecular Root

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE AND SAVE 15% NOW*
Be the first to know about new products, special discounts and the latest health news. *New subscribers only

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map