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

On-and-off fasting helps fight obesity, study finds

Can Pomegranates Slow Aging?

Calorie restriction promotes longevity through effects on mitochondrial network

Discover Why Ashwagandha Can Be Used for Stress and Anxiety

Lower magnesium levels linked with increased mortality risk during up to 40 years of follow-up

A spoonful of oil: Fats and oils help to unlock full nutritional benefits of veggies, study suggests

Higher resveratrol dose linked to lower glucose levels in type 2 diabetics

How Can You Benefit From Vitamin B12?

Drug can dramatically reduce weight of people with obesity

What Is Bitter Orange?

 
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 Vitamin D3 Extreme™ Energy NADH™ 12.5mg


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
 
Optimized Curcumin Longvida with Omega-3

Featured Products

FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium

Natural Remedies

Safely Burn Away Body Fat Safely Burn Away Body Fat
Joint Aches May Have Met Their Match in Curcumin Joint Aches May Have Met Their Match in Curcumin
The Big Blue Fish that Helps Chase the Blues Away The Big Blue Fish that Helps Chase the Blues Away
Reversing Neurodegeneration with a New Magnesium Compound Reversing Neurodegeneration with a New Magnesium Compound
Natural Support for Mood, Sleep and Mental Focus? L-theanine Natural Support for Mood, Sleep and Mental Focus? L-theanine

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