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

Relief for IBS, Colitis, Crohn’s And More

B Vitamins May Protect Against Damaging Effects of Air Pollution, and Improve Cognition and Psychiat...

Can Magnesium Relieve Your Tinnitus?

Restless Leg Syndrome (RLS) - are you running a marathon each night?

Resveratrol Proven to Slow Brain Aging

Magnesium Protects Against Stroke, Heart Disease and Diabetes

Fruits and vegetables' latest superpower? Lowering blood pressure

Neroli Oil: The Pleasantly Fragrant Citrus Oil

Prenatal vitamin D could help prevent autism in children

Restoring NAD+ could reduce DNA damage accumulation

 
Print Page
Email Article

Diurnal variability in orthostatic tachycardia: Implications for Postural Tachycardia Syndrome – Source: Clinical Science, Jul 14, 2011

  [ 22 votes ]   [ 2 Comments ]
By Jordan A Brewster, Satish R Raj, et al. • www.ProHealth.com • August 8, 2011


[Note: POTS is a dysregulation of ‘automatic’ heart rate/blood pressure adjustments that support changes in the body’s requirements – e.g., in POTS heart rate is exaggerated (tachycardia) on rising from prone to upright position. ME/CFS and POTS are often associated and “may share a common pathophysiology.”]

Patients with Postural Tachycardia Syndrome (POTS) have excessive orthostatic tachycardia (<30 bpm) when standing from a supine position [lying on the back].

Heart rate (HR) and blood pressure (BP) are known to exhibit diurnal variability [variation depending on time of day], but the role of diurnal variability in orthostatic changes of HR & BP is not known.

In this study, we tested the hypothesis that there is diurnal variation of orthostatic HR & BP in patients with POTS and healthy controls. Patients with POTS (n=54) and healthy volunteers (n=26) were admitted to the Clinical Research Center.

Supine and standing (5 min) HR & BP were obtained on the evening on the day of admission and in the following morning. Overall, standing HR was significantly higher in the morning than the evening (102±3 bpm [AM] vs. 93±2 bpm [PM]; P<0.001).

Standing HR was higher in the morning in both POTS patients (108±4 bpm [AM] vs. 100±3 bpm [PM]; P=0.012) and controls (89±3 bpm [AM] vs. 80±2 bpm [PM]; P=0.005), when analyzed separately.

There was no diurnal variability in orthostatic BP in POTS.

More subjects met the POTS HR criterion in the morning compared with the evening (P=0.008).[bolding added]

There was significant diurnal variability in orthostatic tachycardia, with a great orthostatic tachycardia in the morning compared to the evening in both patients with POTS and healthy subjects.

Given the importance of orthostatic tachycardia in diagnosing POTS, this diurnal variability should be considered in the clinic as it may affect the diagnosis of POTS.

Source: Clinical Science, Jul 14, 2011. Brewster JA, Garland EM, Biaggioni I, Black BK, Ling JF, Shibao CA, Robertson D, Raj SR.Vanderbilt University School of Medicine, Nashville, Tennessee, USA. [Email: satish.raj@venderbilt.edu]





Post a Comment

Featured Products From the ProHealth Store
Ultra ATP+, Double Strength Energy NADH™ 12.5mg Vitamin D3 Extreme™

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


Article Comments Post a Comment

POTS
Posted by: happydancer
Aug 9, 2011
Interesting article. Maybe I'm not getting a real clear picture of the study but I would have guessed that a person would have orthostatic variability in the morning. My hypotheses would be that no fluids during the night, early a.m. urination, result would be a fluid volume issue. I have recently been giving my geriatric mother fluids in the morning before she really gets out of bed to avoid any kind of orthostatic problem. Naturally, I thought my success was volume, but now I wonder if some of it could be due to the minerals and purest colloids

I have been adding to the water or juice. Just when I think I have things figured out, I discover there is so much more to learn.
Reply Reply

POTS and blood pressure
Posted by: toddm1960
Aug 12, 2011
It would be nice if research documents could get it straight, POTS HAS NOTHING TO DO WITH BLOOD PRESSURE. A drop in BP would be NCS or NMS, you can have both. Just do not include hypotension as a criteria for POTS. Since they can't take the time to get the symptoms correct, I'm not sure if you can trust anything in this paper.
Reply Reply
 
NAD+ Ignite with Niagen

Featured Products

Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health

Natural Remedies

The Big Blue Fish that Helps Chase the Blues Away The Big Blue Fish that Helps Chase the Blues Away
Everything You Always Wanted to Know About Sleep But Were Too Tired to Ask Everything You Always Wanted to Know About Sleep But Were Too Tired to Ask
Live Without Anxiety or Stress Live Without Anxiety or Stress
Natural Support for Mood, Sleep and Mental Focus? L-theanine Natural Support for Mood, Sleep and Mental Focus? L-theanine
Soothe, Heal and Regulate Your Digestive System with Nutrient-Rich Aloe Vera Soothe, Heal and Regulate Your Digestive System with Nutrient-Rich Aloe Vera

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 TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

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

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map