21. Postural Tachycardia Syndrome A definition of POTS and its relation to Chronic Fatigue Syndrome and the pathophysiology. http://www.nymc.edu/fhp/centers/syncope/POTS.htm

Postural Tachycardia Syndrome H ome NIH Studies: CFS ... Search Contents: POTS Defined POTS and CFS Pathophysiology of POTS Return to Home Page POTS Defined Patterns of heart rate and blood pressure variation are shown in the figure and are from our paper which was the first to directly discuss POTS in the pediatric population. goto top POTS and CFS POTS has been proposed as a mechanism for symptoms of the Chronic Fatigue Syndrome in a series of adult patients. POTS and CFS may share a common pathophysiology particularly in the young . Recently, a review of patients with delayed orthostatic hypotension (delayed POTS) demonstrated a high degree of association with chronic fatigue. Our preliminary data have shown that POTS physiology underlies orthostatic intolerance in the large majority of adolescents with the chronic fatigue syndrome (CFS). In those patients we demonstrated loss of heart rate variability consistent with vagal withdrawal, increased blood pressure variability consistent with enhanced modulation of sympathetic tone, and impaired baroreflex with a phase shift causing wide blood pressure swings uncompensated by compensatory HR changes. Preliminary vascular data suggest that these autonomic findings are associated with changes in arterial and venous properties of the lower limbs during orthostasis causing fluid collection in excess of ordinary "pooling" observed in control patients.

22. STARS - Syncope Trust And Reflex Anoxic Seizures STARS syncope Trust And reflex Anoxic Seizure information and support group http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

23. Syncope (fainting) A list of sites providing information on syncope fainting or temporary loss of consciousness. http://heartdisease.about.com/cs/syncope/

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zfs=0;zCMt='a09' zCMTest=1 About Heart Disease / Cardiology Heart Disease Essentials ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Heart Disease / Cardiology newsletter! See Online Courses Search Heart Disease / Cardiology Syncope (fainting) Guide picks A list of sites providing information on syncope - fainting or temporary loss of consciousness Syncope, Part 1 - First, let's make sure you don't die First of a 3-part review of syncope by your Guide. This part stresses that doctors need first to rule out potentially lethal varieties of syncope. Syncope, Part 2 - When to fire your doctor Second of a 3-part series by your Guide. The appropriate evaluation of syncope is not that difficult. But if it is not done right, there may be serious consequences. Syncope, Part 3 - How syncope is treated Part 3 of a series by your Guide. Now that the cause of syncope has been diagnosed, how should it be treated? A Primer on Syncope From the Vanderbilt U. Syncope Center

24. Welcome Postural Orthostatic Tachycardia Syndrome (POTS) , Neurocardiogenic syncope, Mitral Valve Prolapse Dysautonomia, Pure Autonomic Failure http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

25. Evaluating Cardiac Syncope Evaluating cardiac syncope First let s make sure you don t die. http://heartdisease.about.com/cs/arrhythmias/a/Syncope1.htm

var zLb=4; var zIoa1 = new Array('Suggested Reading','Part 2 - Non-cardiac Syncope','http://heartdisease.about.com/cs/arrhythmias/a/Syncope2.htm','Part 3 - Treatment of Syncope','http://heartdisease.about.com/cs/arrhythmias/a/Syncope3.htm'); zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zfs=0;zCMt='a09' zCMTest=1 About Heart Disease / Cardiology The Dysautonomias Evaluating cardiac syncope Heart Disease Essentials Start Here - Cardiology 101 Symptoms and What They Mean ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Heart Disease / Cardiology newsletter! See Online Courses Search Heart Disease / Cardiology Stay up to date! Compare Prices Email to a friend ... Print this page Suggested Reading Part 2 - Non-cardiac Syncope Part 3 - Treatment of Syncope Most Popular Increasing HDL Cholesterol and triglycerides symptoms Heart failure ... metabolic syndrome x What's Hot rimonabant for weight loss Heart failure guidelines EBT - Ultrafast CT - scans Holter Monitors and Event R... ... Exercise improves health adunitCM(150,100,'x55') Syncope, Part 1 - Cardiac Syncope

26. THE MERCK MANUAL, Sec. 16, Ch. 200, Orthostatic Hypotension And Syncope A look at the cardiac causes, symptoms, signs, diagnoses, prognosis and treatment of orthostatic hypotension and syncope. http://www.merck.com/pubs/mmanual/section16/chapter200/200a.htm

var locationOverride = "http://www.merck.com/pubs/"; This Publication Is Searchable The Merck Manual of Diagnosis and Therapy Section 16. Cardiovascular Disorders Chapter 200. Orthostatic Hypotension And Syncope Topics Orthostatic Hypotension Syncope Orthostatic Hypotension Orthostatic hypotension is not a specific disease but rather a manifestation of abnormal BP regulation due to various causes. Etiology and Pathophysiology The gravitational stress of sudden standing normally causes pooling of blood in the venous capacitance vessels of the legs and trunk. The subsequent transient decrease in venous return and cardiac output results in reduced BP. Baroreceptors in the aortic arch and carotid bodies activate autonomic reflexes that rapidly normalize BP by causing a transient tachycardia. These changes reflect primarily the sympathetic mediated increase in catecholamine levels, which augments vasomotor tone of the capacitance vessels, increases heart rate and myocardial contractility, and thereby enhances cardiac output; arterial and venous vasoconstriction are mediated by similar mechanisms. Vagal inhibition also increases the heart rate. With continued standing, ADH secretion and activation of the renin-angiotensin-aldosterone system cause Na and water retention and expansion of the circulating blood volume. When afferent, central, or efferent portions of the

27. Syncope Evaluation In The Emergency Department Study (SEEDS) A syncope Evaluation in the Emergency Department Study (SEEDS) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

28. Vasovagal Syncope And Related Disorders - April 1, 2000 - American Academy Of Fa Vasovagal syncope describes this condition, as well as other conditions that In patients with vasovagal syncope, the initial cardiovascular response to http://www.aafp.org/afp/20000401/tips/9.html

Advanced Search Tips from Other Journals Previous Next Vasovagal Syncope and Related Disorders The management of patients in whom a primary abnormality in blood pressure regulation results in hypotension and loss of consciousness presents clinical challenges. The hypotension may be primary, or it may be secondary to a condition such as tachyarrhythmia or bradyarrhythmia. Vasovagal syncope describes this condition, as well as other conditions that are considered to be dysautonomic responses to upright posture, such as orthostatic hypotension and postural orthostatic tachycardia syndrome (POTS). Bloomfield and associates reviewed the pathophysiology of these two causes of syncope and developed an algorithm to guide diagnosis and treatment. see the accompanying figure on page 2212 Vasovagal Syncope and Related Disorders FIGURE. Vasovagal syncope and related disorders: a suggested algorithm for the diagnosis and treatment of vasovagal syncope and related disorders. (POTS = postural orthostatic tachycardia syndrome; HR = heart rate; BP = blood pressure; OH = orthostatic hypotension; HTN = hypertension; SSRI = selective serotonin reuptake inhibitors) Adapted with permission from Professional Postgraduate Services, a division of Physicians World Communications Group.

29. CLINICAL GUIDELINE Diagnosing Syncope Part 1 Value Of History Diagnosing syncope Part 1 Value of History, Physical Examination, and Electrocardiography Mark Linzer, MD ; Eric H. Yang, BS http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

30. Syncope syncope (faint) is a sudden fall of blood pressure resulting in loss of About 3% of the population have syncope at some point in life (Savage, 1985). http://www.tchain.com/otoneurology/disorders/medical/syncope.htm

Syncope Timothy C. Hain, MD Last edited: 7/2002. Please read our Syncope defined Causes Evaluation Prognosis Education Index Syncope (faint) is a sudden fall of blood pressure resulting in loss of consciousness. About 3% of the population have syncope at some point in life (Savage, 1985). Syncope also accounts for 3% of all emergency room visits and 6% of all hospital visits. Between 71 and 125 children and adolescents/100,000 population experience syncope each year. The incidence peaks in 1519 year olds (Driscoll, 1997). Presyncope consists of unsteadiness, weakness, or cognitive symptoms without loss of consciousness. It is often a symptom of orthostatic hypotension , and may also be a source of drop attacks (Dey et al, 1997). Causes of syncope: Arrythmia abnormal slowing or quickness of the heart bradycardia (slowness of heart beat) sick-sinus (variable) supraventricular or ventricular tachycardia (abnormally fast) hemodynamic obstruction to blood flow hypertrophic subaortic stenosis (IHSS) aortic stenosis pulmonary embolism or hypertension Neurally mediated vasovagal reaction (usually related to emotional stress) carotid sinus hypersensitivity postural hypotension (usually related to medication or dehydration) In the differential diagnosis of syncope one must also consider non-cardiac causes of loss of consciousness: seizure stroke or TIA metabolic encephalopathy psychiatric conditions Common drugs that are associated with an excess risk of syncope in the elderly include

31. THE MERCK MANUAL, Sec. 16, Ch. 200, Orthostatic Hypotension And syncope may result from various cardiovascular and noncardiovascular causes The most common pathophysiologic basis for syncope is an acute decrease in http://www.merck.com/mrkshared/mmanual/section16/chapter200/200b.jsp

32. THE MERCK MANUAL, Sec. 16, Ch. 200, Orthostatic Hypotension And Orthostatic Hypotension And syncope. Topics. Orthostatic Hypotension With more severe cerebral hypoperfusion, syncope or generalized seizures may http://www.merck.com/mrkshared/mmanual/section16/chapter200/200a.jsp

33. The Syncope Center Columbia-Presbyterian Medical Center Depending on the cause of syncope, the prognosis varies from excellent to poor. Finding the cause of syncope and an effective treatment quickly are primary http://hora.cpmc.columbia.edu/dept/syncope/mdbroch.html

The Syncope Center Columbia-Presbyterian Medical Center The Heart Institute Columbia-Presbyterian Medical Center Prevalence and Prognosis Nearly half of all Americans will have one episode of syncope (fainting) in their lives. More than 100,000 patients per year present to a physician reporting repeated episodes. Syncope accounts for 3% of emergency room visits and 1% of hospitalizations. Depending on the cause of syncope, the prognosis varies from excellent to poor. Finding the cause of syncope and an effective treatment quickly are primary goals of the Syncope Center. Causes of Syncope The causes of syncope are myriad, but more than half of the episodes have a recognizable cardiovascular cause. In the absence of focal neurological symptoms or signs, a neurologic cause is rare. When structural heart disease is present, syncope often si gnals a mechanical or electrical cardiac cause. When structural heart disease is absent, a disorder of cardiovascular reflexes is the most likely cause of syncope. The causes of syncope are often categorized as: cardiovascular (arrhythmias, mechanical problems, abnormal cardiovascular reflexes)

34. Syncope Center: Patient Information Directory Welcome to the syncope Center s Patient Information Directory! Below are listed a number of documents written specifically for patients. http://hora.cpmc.columbia.edu/dept/syncope/patinfo.html

Patient Information Directory Welcome to the Syncope Center's Patient Information Directory! Below are listed a number of documents written specifically for patients. The Definition of Syncope Structure and Objectives of the Syncope Center A Primer on Syncope and the Syncope Center Vaso-Vagal Syncope and Tilt Table Testing ... Chronic Fatigue Syndrome and Tilt Table Testing Research Programs at the Syncope Center Syncope Center General Menu Syncope Center Address Phone Number Emergency ... Information

35. Patient And Public Information Center : Heart Rhythm Society The medical term for fainting is syncope (SIN koe pee). The most serious causes of syncope are related to heart damage or electrical system disorders http://www.hrspatients.org/patients/signs_symptoms/fainting/default.asp

HOME CONTACT US SITE MAP THE NORMAL HEART ... EDUCACIÓN DEL PACIENTE Fainting (Syncope) Fainting is a sudden loss of consciousness. It most often occurs when the blood pressure is too low (hypotension) and the heart does not pump a normal supply of oxygen to the brain. Typically, a faint lasts only a few seconds or minutes, and then the person regains consciousness. The medical term for fainting is syncope (SIN koe pee). It is a common problem that affects one million people in the U.S. every year. About one-third of us will faint at least once during our lifetime. A single fainting spell usually is not serious. It may be explained by factors such as stress, grief, overheating, dehydration, exhaustion or illness. Many causes of fainting, however, are not easy to explain. Some are life-threatening. The most serious causes of syncope are related to heart damage or electrical system disorders that affect the heart's ability to pump blood efficiently. In some cases, fainting is the only warning sign of an abnormal heart rhythm (arrhythmia) that could cause sudden cardiac death. more If you faint suddenly and without explanation, however, contact your physician.

36. João Da Cal http://www.syncope.blogspot.com/

@import url("http://www.blogger.com/css/blog_controls.css"); @import url("http://www.blogger.com/dyn-css/authorization.css?blogID=7583797"); @import url(http://www.blogger.com/css/navbar/main.css); @import url(http://www.blogger.com/css/navbar/1.css); BlogThis! Syncope Tuesday, July 26, 2005 Vazio Faltam-me as palavras, agora que se foram os sonhos... Baralham-me as horas, agora que s³ gasto os dias... Sobram-me as l¡grimas, n£o h¡ esperan§a na manga, perdi o trunfo, morreu a alma... Escrito por Jo£o Da Cal postCount('112238192304029998'); Saturday, July 02, 2005 Nem sei porque © que sinto... Nada © real! Nada existe, como eu o pinto... Nem sei porque d³i! Nada sangra, nada ri, e a vida, apenas m³i... Escrito por Jo£o Da Cal postCount('112026995483378923'); Sunday, June 19, 2005 Mudar! Mudar! ‰ tudo que me resta... Esquecer. Deitar fora tudo, que j¡ n£o presta!! Mudar! Para enterrar as m¡goas, para n£o beber sempre da mesma ¡gua, para oferecer outra festa, e sentir que tenho o poder de dizer que n£o foi desta!! Escrito por Jo£o Da Cal postCount('111920500887108362');

37. Fainting And Seizure Diagnosis And Information At Medtronic On this site you ll find information about syncope, its treatment and ways its WebMD Logo, Heart Disease Condition Center, Related Sites on syncope http://www.medtronic.com/reveal/

Diagnosing Unexplained Fainting More Information about Unexplained Fainting Bradycardia Seizures and Fainting Tachyarrhythmia Stages of Your Condition hbx.pn="Unexplained+Fainting+Diagnosis";//PAGE NAME(S) Welcome to your online source for information about recurrent, unexplained fainting. Fainting is also called syncope (sing'-koh-pee). Good News for Fainting Sufferers and People with Unexplained Symptoms that May be Heart Related If you suffer from unexplained recurrent fainting, or other symptoms such as palpitations, light-headedness, or dizziness, there may be new hope. There is a new diagnostic tool available to help determine the cause of these episodes called the Medtronic Reveal® Insertable Loop Recorder (ILR) . Once the cause of your episodes is determined, in some cases, treatments are available that can stop them altogether. On this site you'll find information about syncope, its treatment and ways its underlying causes can be diagnosed. You'll also find information about the Reveal Insertable Loop Recorder and the types of doctors who diagnose and treat syncope. In addition, this site provides information for patients who already have a Reveal Insertable Loop Recorder , answers to frequently asked questions and links to other helpful sites.

38. Medtronic Reveal - For Health Professionals - Syncope Case Report www.fainting.com is your online source for information about recurrent, unexplained fainting and recent medical advances offering new hope for people who http://www.medtronic.com/reveal/brady.html

39. CLINICAL GUIDELINE: Diagnosing Syncope: Part 2: Unexplained Syncope -- Linzer Et syncope that remains unexplained after initial clinical assessment is of Branch 1 Unexplained syncope with Clinical Organic Heart Disease or Abnormal http://www.annals.org/cgi/content/full/127/1/76

Search Annals: Advanced search Home Current Issue Past Issues ... ACP Online Article Table of Contents Abstract of this article Figures/Tables List Articles citing this article Services Send comment/rapid response letter Notify a friend about this article Alert me when this article is cited Add to Personal Archive ... ACP Search PubMed Articles in PubMed by Author: Linzer, M. Kapoor, W. N. Related Articles in PubMed PubMed Citation ... PubMed POSITION PAPER CLINICAL GUIDELINE Diagnosing Syncope: Part 2: Unexplained Syncope Mark Linzer, MD Eric H. Yang, BS N.A. Mark Estes, III, MD Paul Wang, MD ... Wishwa N. Kapoor, MD, MPH Purpose: To review the literature on diagnostic testing in syncope that remains unexplained after initial clinical assessment. Data Sources: MEDLINE search. Study Selection: Published papers were selected if they addressed diagnostic testing in syncope, near syncope, or dizziness. Data Extraction: Studies were identified as population studies, referral studies, or case series. Data Synthesis: After a thorough history, physical examination, and electrocardiography, the cause of syncope remains undiagnosed

40. CLINICAL GUIDELINE: Diagnosing Syncope: Part 1: Value Of History, Physical Exami Causes of syncope Found by History and Physical Examination or Electrocardiography. Physical findings that are useful in diagnosing syncope include http://www.annals.org/cgi/content/full/126/12/989

Search Annals: Advanced search Home Current Issue Past Issues ... ACP Online Article Table of Contents Abstract of this article Figures/Tables List Related articles in Annals ... Articles citing this article Services Send comment/rapid response letter Notify a friend about this article Alert me when this article is cited Add to Personal Archive ... ACP Search PubMed Articles in PubMed by Author: Linzer, M. Kapoor, W. N. Related Articles in PubMed PubMed Citation ... PubMed POSITION PAPER CLINICAL GUIDELINE Diagnosing Syncope: Part 1: Value of History, Physical Examination, and Electrocardiography Mark Linzer, MD Eric H. Yang, BS N.A. Mark Estes III, MD Paul Wang, MD ... Wishwa N. Kapoor, MD, MPH Purpose: To review the literature on diagnostic testing in syncope and provide recommendations for a comprehensive, cost-effective approach to establishing its cause. Data Sources: Studies were identified through a MEDLINE search (1980 to present) and a manual review of bibliographies of identified articles. Study Selection: Papers were eligible if they addressed diagnostic testing in syncope or near syncope and reported results for at least 10 patients.

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