Navigation Links
Large VA study finds seasonal differences in blood pressure

ORLANDO, Nov. 5 Fewer people treated for high blood pressure return to normal pressure levels in the winter compared to those treated in the summer, Veterans Affairs (VA) researchers reported at the American Heart Associations Scientific Sessions 2007.

The five-year study analyzed electronic health records from 15 VA hospitals in warmer and colder cities throughout the United States. Researchers identified 443,632 veterans with high blood pressure. Those who had readings of more than 140 mm Hg systolic or more than 90 mm Hg diastolic on three separate days were identified as hypertensive.

The bottom line is that regardless of whether youre in Anchorage, Alaska or San Juan, Puerto Rico, there is a difference in high blood pressure returning to normal in the winter compared to the summer, said Ross D. Fletcher, M.D., the studys lead author and chief of staff at the VA Medical Center in Washington, D.C.

The study found a significant variation in every city, warmer or colder, in return to normal blood pressure in winter compared to summer. The average significant difference in percent of patients returning to normal was 7.76 percent between the two seasons, based on patients blood pressure readings as recorded in their Electronic Health Record.

The average age of veterans in the study was 66 years. About 51 percent were Caucasian, 21 percent Hispanic and 27 percent black. Only 3.7 percent were female.

San Juan is virtually equal to Anchorage, as blood pressure systematically worsens in the winter and improves in the summer, Fletcher said. We did not see the coldest city had the biggest change in blood pressure.

The other 13 VA hospitals included those in Baltimore, Boston, Chicago, Fargo, Honolulu, Houston, west Los Angeles, Miami, Minneapolis, New York, Philadelphia, Portland, Ore., and Washington, D.C.

Fletcher suggested that weight and exercise may play a role in these seasonal variations rather than southern or northern climate or the amount of light.

There is a weight change that is significant, Fletcher said. People gain weight in the winter and lose weight in the summer. People tend to exercise more in the summer and less in the winter.

He emphasized the importance of designing treatment strategies for patients high blood pressure to account for these seasonal variations, perhaps requiring increased anti-hypertensive intervention during the winter months.

VA hospitals in all cities demonstrated improvement from the beginning to the end of the study. Improvement averaged about 4 percent per year in the VA hospital system overall.

The award-winning electronic health record system, containing 1.8 billion vital records, and data on the nearly 1,192,781 patients with more than 19 million blood pressure records, is one important factor in improving the treatment of high blood pressure, Fletcher said. The electronic system feeds back blood pressure information from each patient to his doctor, with reminders when blood pressure needs to be checked, leading to rapid turn-around in blood pressure control.


Contact: Karen Astle
American Heart Association

Related medicine news :

1. National Association of Subrogation Professionals (NASP), the Largest Insurance Subrogation Association in the World - Announced Today that Leslie Wiernik has Joined the Organization as Director of Education
2. Work time is the largest influence to the duration of a persons sleep
3. Large intensive care study reveals vital recommendations for treatment of brain injury patients
4. One of the Largest Post-WHI Physician Surveys Shows More Education is Needed: Patient Misinformation About Hormone Therapy Remains High
5. Texas Largest Physician Carrier Announces 5th Successive Rate Cut on Anniversary of Lawsuit Reform
6. Preventing or reducing enlarged heart decreases risk of heart failure
7. A Place for Mom, Nations Largest Senior Care Referral Service, Fills a Gap in Employee Benefits
8. AHRQ and FDA to Collaborate in Largest Study Ever of Possible Heart Risks with ADHD Medications
9. Worlds Largest Exhibit of Princess Dianas Dresses Hosted by Appleton Museum
10. Largest Privately-Owned Veterinary Practice in the World, Banfield, the Pet Hospital(R), Appoints New Chief Executive Officer
11. Plenary lectures announced for worlds largest osteoporosis congress
Post Your Comments:
(Date:11/30/2015)... ... November 30, 2015 , ... ... Center is one of a select few plastic surgeons in the New York ... removal. , SculpSure™ is the world’s first heat-induced laser treatment for fat loss ...
(Date:11/30/2015)... (PRWEB) , ... November 30, 2015 , ... TransPack Volume ... X . Choose from scrolling web-styled transitions to wipes with blur & drop ... direction and more. Seamlessly transition from one clip to the next with TransPack's ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... their strategic partnership at the Radiological Society of North America (RSNA) 2015 ... global providers of cutting-edge dictation and speech-enabled documentation software, announced their partnership ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... In 2016, expected coding changes are likely to include new codes for spine ... not easy to understand the effects of code changes in musculoskeletal, radiology and ...
(Date:11/30/2015)... ... 30, 2015 , ... CTI Group (Holdings) Inc. (OTC:CTIG), a ... communication analytics, announced today that their Proteus® VoIP QMS solution now supports Skype ... Proteus® VoIP QMS (Quality Management System) does this by collecting the ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... , Nov. 30, 2015 NHS Supply ... 20 TrueBeam™ machines from Varian Medical Systems (NYSE: ... program to replace older machines and institute modern ... UK,s public hospitals. The order, placed in September, ... licenses for Varian,s RapidArc® and Eclipse™ software systems.    ...
(Date:11/30/2015)... , Nov. 30, 2015  Hanger, Inc. (NYSE: ... restatement of the terms of its previously announced consent ... to its $200,000,000 aggregate principal amount 7⅛% Senior Notes ... (i) the consent fees payable pursuant to the Consent ... Notes and (iii) the expiration date of the Consent ...
(Date:11/30/2015)... , Nov. 30, 2015  Precision Image ... services, is pleased to announce a dramatic expansion ... imaging services. Building on its ISO-9001:2008 certification for ... implemented comprehensive Core Lab protocols and procedures. This ... of research activities.  Their Core Lab services include ...
Breaking Medicine Technology: