 |
|
Clock-shifts affect risk of heart attack
October 31, 2008Adjusting the clocks to summer time on the last Sunday in March increases the risk of myocardial infarction in the following week. In return, putting the clocks back in the autumn reduces the risk, albeit to a lesser extent. This according to a new Swedish study published in the prestigious New England Journal of Medicine.
Scientists at Karolinska Institutet have examined how the incidence of myocardial infarction in Sweden has changed with the summer and winter clock-shifts since 1987. Their results show that the number of heart attacks, on average, increases by about five per cent during the first week of summer time.
"There's a small increase in risk for the individual, especially during the first three days of the new week," says Dr Imre Janszky, one of the researchers behind the study. "The disruption in the chronobiological rhythms, the loss of one hour's sleep and the resulting sleep disturbance are the probable causes."
The team also observed that the readjustment back to winter time on the last Sunday in October, which gives us an extra hour's sleep, is followed by a reduction in the risk of heart attack on the Monday. The reduction for the whole week is, however, less than the increase related to the summer adjustment.
According to the scientists, the study provides a conceivable explanation for why myocardial infarction is most common on Mondays, as demonstrated by previous research.
"It's always been thought that it's mainly due to an increase in stress ahead of the new working week," says Dr Janszky. "But perhaps it's also got something to do with the sleep disruption caused by the change in diurnal rhythm at the weekend."
Even though the increase and decrease in risk are relatively small for the individual, the team believes that the study can improve our understanding of how disruptions to diurnal rhythms impact on our health.
"Roughly 1.5 billion people are subjected to these clock-shifts every year, but it's hard to make any generalised statement about how many heart attacks they can cause," adds Dr Rickard Ljung, another member of the research team.
Karolinska Institutet
The team also observed that the readjustment back to winter time on the last Sunday in October, which gives us an extra hour's sleep, is followed by a reduction in the risk of heart attack on the Monday. The reduction for the whole week is, however, less than the increase related to the summer adjustment.
According to the scientists, the study provides a conceivable explanation for why myocardial infarction is most common on Mondays, as demonstrated by previous research.
"It's always been thought that it's mainly due to an increase in stress ahead of the new working week," says Dr Janszky. "But perhaps it's also got something to do with the sleep disruption caused by the change in diurnal rhythm at the weekend."
Even though the increase and decrease in risk are relatively small for the individual, the team believes that the study can improve our understanding of how disruptions to diurnal rhythms impact on our health.
"Roughly 1.5 billion people are subjected to these clock-shifts every year, but it's hard to make any generalised statement about how many heart attacks they can cause," adds Dr Rickard Ljung, another member of the research team.
Karolinska Institutet
Myocardial Infarction Current Events and Myocardial Infarction News RSSSurvival after heart attack improves in younger women
In recent years, women, particularly younger women, experienced larger improvements in hospital mortality after myocardial infarction (MI) than men, according to a study published in the Oct. 26, 2009 issue of Archives of Internal Medicine.
Cost Effectiveness of Blood Pressure Device Evaluated
A study conducted by the University of Rochester Medical Center (URMC) demonstrates that, for certain patient populations, an experimental device that lowers blood pressure may be a cost effective treatment. The implantable device, called Rheos, is in advanced stages of testing for individuals with drug resistant hypertension.
Drug-eluting stents better than bare-metal stents for heart attack patients
Late-breaking data from the landmark HORIZONS-AMI clinical trial, presented at the 21st annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, demonstrated that after two years, in heart attack patients, the use of a drug-eluting stent (paclitaxel) was safer and more effective than a bare-metal stent; and that the administration of the anticoagulant medication bivalirudin enhanced safety and efficacy compared to the use of heparin + GPIIb/IIIa inhibitors.
SPIRIT IV trial shows everolimus stent sets new standard for event-free survival
Late-breaking data from SPIRIT IV, a large-scale multi-center study of nearly 4,000 patients in the U.S., shows that an everolimus-eluting stent demonstrated enhanced safety and efficacy in the treatment of de novo native coronary artery lesions when compared to a paclitaxel-eluting stent, and showed that "low late loss" may be achieved with drug-eluting stents without sacrificing safety.
A consistent decline in heart attack rates following the implementation of smoking bans
Strongly enforced legislation to restrict smoking produces rapid and substantial reductions in community rates of heart attack, according to a meta-analysis published today in Circulation, the journal of the American Heart Association.
Pre-hospital organization: The first links in the chain of survival for heart attack patients
Mortality rate following a heart attack has fallen by more than 50% in Europe over the past 25 years. However, because only minor advances in the medical treatment of AMI are expected over the next decade, it is through organisational changes in the pre-hospital phase that mortality rate will continue this decline to below 5%.
Stent for life initiative
Primary angioplasty (with stent implantation) is the most effective therapy for acute myocardial infarction (AMI), but it is not available to many patients, even though most European countries have sufficient resources (ie, catheterisation laboratories) for its wider use.
GERD negatively impacts sleep quality, results in considerable economic burden
There has been much debate about the relationship between gastroesophageal reflux disease (GERD) and sleep.
Results from the Kyoto heart study
The KYOTO HEART Study, which took place in Japan between January 2004 and January 2009, shows that the addition of valsartan to conventional antihypertensive treatment to improve blood pressure control is associated with an improved cardiovascular outcome in Japanese hypertensive patients at high risk of CVD events.
Aspirin works for primary prevention in moderate and high risk diabetics
The beneficial effects of aspirin in primary prevention of cardiovascular events i.e. stroke, MI and cardiac death are known and generally accepted.
More Myocardial Infarction Current Events and Myocardial Infarction News Articles
 |
Myocardial Infarction: An Incredibly Easy! Miniguide by Springhouse (Editor) Pocket-sized guide to risk factors, pathophysiology, prevention, physical examination, diagnostic tests, drug therapy, complications, recovery, patient education, and more. Includes key concepts, quizzes, memory joggers, and color illustrations of pathophysiology. Two-tone format. For nurses. Trim size: 5.5 x 4.5 inches. Softcover. DNLM: Myocardial Infarction Handbooks. |
 |
New Paradigms in the Treatment of Myocardial Infarction (NCME Video 857) Also With: Network for Continuing Medical Education (Primary Contributor), Deepak L. Bhatt (Primary Contributor), Marc S. Sabatine (Primary Contributor) How is the standard of care for patients with MI being redefined in 2005? In these live, interactive dinner forums, two national cardiovascular experts present results from recent clinical trials that may impact future guidelines. Topics include the first major milestone in over a decade for incremental pharmacologic reperfusion and mortality reduction in STEMI; fine points in choosing PCI versus thrombolysis in STEMI; the role of troponins, hs-CRP, and other CV risk markers in targeting therapies in UA/NSTEMI; and interpreting the latest results from drug-eluting stent trials. A community cardiovascular expert from your area will join the national faculty to discuss how to incorporate new evidence-based medicine into actionable critical pathways at your own hospital. Late-breaking... |
|
Adult Acute Myocardial Infarction [VHS] Starring: Aha | |
 |
Myocardial Infarction (Heartbreak) Swamp Dogg (Primary Contributor) |
 |
Prevention of Myocardial Infarction by JoAnn E. Manson (Editor), Paul M. Ridker (Editor), J. Michael Gaziano (Editor), Charles H. Hennekens (Editor) Harvard Medical School, Boston, MA. Clinical research on coronary disease prevention. Chapters on lifestyle modifications, hypertension and hypercholesterolemia, antiplatelet, antioxidant, and estrogen replacement therapies. For health care providers, general internists, and physicians. |
 |
Magnesium Malate 150 mg - 120 VegCapsules by NutraMedix Inc Magnesium is an essential mineral that is required by every cell in the human body and is important for helping to maintain normal cardiovascular, muscle, nerve, bone and cellular function. |
 |
Mini Heart Set Model by Anatomical This Mini Heart Set Model contains 3 hearts. First shows normal heart anatomy. Also has Myocardial Infarction heart demonstrating a partially healed, thinned, and discolored 5 infarcted areas. Includes a thrombus in the apex of the heart. Also contains a heart demonstrating Congestive Heart Failure as a result of hypertension. The left ventricle hypertrophy and the correspondingly enlarged and distorted shape of the heart is shown both internally and externally. All models are approximately 50% actual size. Normal and MI hearts: 4"x 2-1/4"x 1-3/4". CHF: 4"x 2-1/2"x 2-1/4". |
 |
Critical Care Compendium by Mind-Forge Education Services LLC This is a collection of Self Learning Modules and pocket guides. Below are some of the modules and pocket guides in this product. **A quick handy guide to quickly interpret the 12 lead electrocardiogram, identify ischemia, reciprocal changes and to quickly localize a myocardial infarction and involved coronary arteries. **A brief presentation on atrial fibrillation/flutter, optimal monitoring leads, causes and complications related to open heart surgery. **A brief over view of current Advanced Cardiac Life Support treatment algorithms. **ACLS 2006 Code Drugs: Detailed description of 2006 ACLS code drugs and drip charts. (Current for 2007) **A detailed guide to the autonomic nervous system with emphasis placed on parasympathetic and sympathetic involvement and pharmacological... |
 |
New Paradigms in the Treatment of Myocardial Infarction (NCME Video 857) Also With: Network For Continuing Medical Education (Primary Contributor), Deepak L. Bhatt (Primary Contributor), Marc S. Sabatine (Primary Contributor) How is the standard of care for patients with MI being redefined in 2005? In these live, interactive dinner forums, two national cardiovascular experts present results from recent clinical trials that may impact future guidelines. Topics include the first major milestone in over a decade for incremental pharmacologic reperfusion and mortality reduction in STEMI; fine points in choosing PCI versus thrombolysis in STEMI; the role of troponins, hs-CRP, and other CV risk markers in targeting therapies in UA/NSTEMI; and interpreting the latest results from drug-eluting stent trials. A community cardiovascular expert from your area will join the national faculty to discuss how to incorporate new evidence-based medicine into actionable critical pathways at your own hospital. Late-breaking... |
|
Myocardial Infarction: Pathophysiology for Nurses Video Series (Pathophysiology for Nurses Series) by Blanchard-Loeb (Author) Spot warning signs and symptoms of myocardial infarction (MI) and its life-threatening complications, and intervene quickly and expertly. You'll see exactly what's happening inside your patient's body and know exactly what it means for your nursing care before, during, and after an MI. In just 30 minutes, you'll learn how to: „h respond swiftly and effectively to reduce the risk of sudden death „h analyze electrocardiogram tracings and other diagnostic test results to „h determine where the patient's heart has been damaged „h understand how a non-Q wave MI progresses to a Q wave MI „h prepare the patient for related medical and surgical treatments „h provide superior ongoing nursing care once the patient's condition has stabilized „h teach the patient how to... |
| © 2009 BrightSurf.com |