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ATRIAL FIBRILLATION and Thyroid

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ATRIAL FIBRILLATION Symptoms and Causes

An arrhythmia is a problem with the speed or rhythm of the heartbeat. Atrial fibrillation (AF) is the most common type of arrhythmia. The cause is a disorder in the heart's electrical system.

Often, people who have AF may not even feel symptoms. But you may feel

  • Palpitations -- an abnormal rapid heartbeat
  • Shortness of breath
  • Weakness or difficulty exercising
  • Chest pain
  • Dizziness or fainting
  • Fatigue
  • Confusion

AF can lead to an increased risk of stroke. In many patients, it can also cause chest pain, heart attack, or heart failure.

Doctors diagnose AF using family and medical history, a physical exam, and a test called an electrocardiogram (EKG), which looks at the electrical waves your heart makes. Treatments include medicines and procedures to restore normal rhythm.

NIH: National Heart, Lung, and Blood Institute

Check out the latest treatments for ATRIAL FIBRILLATION

ATRIAL FIBRILLATION treatment research studies

Thyroid clinical trials, surveys and public health registries


Find Drug Side Effect reports



Thyroid Side Effects

Fatigue (48)
Hypothyroidism (38)
Alopecia (37)
Product Formulation Issue (23)
Headache (23)
Palpitations (22)
Diarrhoea (21)
Feeling Abnormal (21)
Dizziness (21)
Dyspnoea (21)
Product Substitution Issue (20)
Pain (20)
Chest Pain (20)
Asthenia (19)
Weight Increased (19)
Product Quality Issue (18)
Blood Thyroid Stimulating Hormone Increased (17)
Blood Pressure Increased (17)
Heart Rate Increased (17)
Depression (17)
Insomnia (17)
Myalgia (16)
Nausea (15)
Hypertension (15)
Arthralgia (15)
Atrial Fibrillation (15)
Dry Skin (14)
Rash (13)
Tremor (12)
Urticaria (12)
Pain In Extremity (12)
Malaise (12)
Abdominal Pain Upper (11)
Anxiety (11)
Condition Aggravated (11)
Hyperhidrosis (11)
Thyroid Function Test Abnormal (10)
Muscle Spasms (9)
Deep Vein Thrombosis (9)
Flatulence (9)
Hyperthyroidism (9)
Heart Rate Irregular (9)
Confusional State (8)
Blood Thyroid Stimulating Hormone Decreased (8)
Constipation (8)
Vomiting (8)
Weight Decreased (8)
Oedema Peripheral (8)
Extrasystoles (8)
Suicidal Ideation (7)

➢ More


Common Meds

Abilify (10132)
Adderall (1304)
Amlodipine (6664)
Amoxicillin (4387)
Benadryl (1568)
Celebrex (12876 )
Celexa (1342)
Cialis (2975)
Cipro (8580)
Citalopram (7792)
Crestor (18839)
Cymbalta (14373)
Doxycycline (1757)
Effexor (7289)
Flexeril (435)
Flomax (2177)
Fluoxetine (4261)
Gabapentin (4593)
Hydrocodone (2469)
Ibuprofen (8222)
Lantus (10968)
Lexapro (3499)
Lipitor (17769)
Lisinopril (8919)
Lyrica (27148)
Medrol (650)
Mirena (41254)
Mobic (957)
Morphine (5356)
Naproxen (538)
Neurontin (6501)
Oxycodone (4438)
Pradaxa (13372)
Prednisone (5926)
Prilosec (2631)
Prozac (1954)
Seroquel (27216)
Simvastatin (8348)
Synthroid (4452)
Tamiflu (5585)
Topamax (3748)
Tramadol (5054)
Trazodone (1458)
Viagra (5394)
Vicodin (1153)
Wellbutrin (6324)
Xanax (2847)
Zocor (5718)
Zoloft(6792)
Zyrtec(1669)

Recent Reviews

Canbendrofluazide 2.5mg give me a cough

I am in atrial fib and I am waiting for ablation which should be in next two weeks. Of course, I am experiencing shortness of breath and fatique. But I also have a lot mucous which I have to expell early in the morning. Along with this , I

I had atrial fib some months ago,was in the emegency room in resus,Metoprolol was used to resus me at that time---i have had lots of supvetricular-slow since but Metoprolol will NEVER be a choice for me,iv GOT to get my BP down but HOW?as it WONT be

I have been getting these little blister sores that bust and turn into scap little sores. I have noticed it since about a month or so after found out my thyroid is not working right. Could this be a side effect from the medication

I have only been on it five days, it is better than nothing so far. My own thyroid production took a downfall and I am used to Armour Thyroid which has been my doctor's first choice for years. I was told by my European Doctor that Synthyroid is jus

I'm losing a lot of weight. Was 110 when started on Armour. Lost 15 lbs in one year. Take 90

In the Spring of 2008 I went to my PCP for allergy symptoms, and when he felt my neck glands to make sure that I didn't have something similiar to strept throat, he said that's the biggest Thyrioid I've ever felt, well 2 weeks later the surgeon was r

My husbadn is almost 52, and he has been very ill with a chronic GI condition for the last 12 months. He has been in and out of the hospital and had his gull bladder and appendix removed. They still have no diagnosis for the GI problems. Now last wee

Received a vaccine and almost immediately developed Atrial Fib.

Recently I was put on medication for thyroid. Its a powder compound and they put into capsules for me to take. Its 60mg 1 daily then after one week 1 twice a day. I took it Saturday no side effects. Then Sunday I had no energy and I was so cold I cou

Can Trileptal cause atrial fibralattion

Can Trileptal cause Atrial Fibrallation?

After a catheter ablation this past Augustfor atrial fib. my doctor prescribed Pradax. and after taking it for a month or 2 I began having nausea and stomach discomfort. It has escalated to much more severs pain and burning in my stomach&am

Atrial flutter, A fib, bundle branch block

Been on Flomax for a week. Have noticed that my BPH symtoms have abated somewhat. I also have PAF (parox atrial fib). Have noticed that my episodes of AF have increased. This AM was really bad, so much so that I almost blacked out on the exercise bik

Days lost to increasing incidence of atrial fibrillation, tachycardia, with ensuing weakness.

Did not fix my atrial flutter. Was put on double dose of Cardizem until ablation on friday. Hope it works!!

Fixed my atrial flutter, but know have rheumatoid arthritis, and a bad cough now for 12 weeks

Hello, I am suffering of coronary insufficiency and atrial fibrilation.I had a myocardial infarction before 6 years.Itake amiodarone and atenolol.Can i use pradaxa??

I am 48 and i have Atriel Fibrillation and am on Congescor and Warfarin whilst awaiting a 'Cardioversion'. i am desperately trying to lose weight, is Congescor blocking my weight loss or is it just my age?

ATRIAL FIBRILLATION Clinical Trials and Studies

Treatments might be new drugs or new combinations of drugs, new surgical procedures or devices, or new ways to use existing treatments. The goal of clinical trials is to determine if a new test or treatment works and is safe. Clinical trials can also look at other aspects of care, such as improving the quality of life for people with chronic illnesses. People participate in clinical trials for a variety of reasons. Healthy volunteers say they participate to help others and to contribute to moving science forward. Participants with an illness or disease also participate to help others, but also to possibly receive the newest treatment and to have the additional care and attention from the clinical trial staff.
Rank Status Study
1 Unknown  Thyroid Hormone Dose Adjustment in Pregnancy
Conditions: Pregnancy;   Hypothyroidism
Interventions: Drug: Anticipatory dose increase of levothyroxine;   Drug: levothyroxine
Outcome Measures: proportion of patients in each treatment arm euthyroid through gestation;   the proportion of patients in each arm who required, and the gestation week at which, levothyroxine dose adjustments (either increased or decreased) occurred to maintain a euthyroid state;   Determination of the necessary frequency of serum evaluation of TSH during the first half of gestation.
2 Recruiting Study of Optimal Replacement of Thyroxine in the Elderly
Condition: Hypothyroidism
Intervention: Drug: Levothyroxine
Outcome Measures: Participant's acceptability of study design and willingness to enter study;   Participant recruitment rate;   Time to achieve desired TSH levels;   Medication compliance;   The acceptability of three patient completed questionnaires;   Assessment of mobility;   Change in specific cardiovascular risk factors;   Measure of risk of falls
3 Recruiting Study of Dose Adjustment From Levothyroxine to a New Levothyroxine Sodium Test Formulation.
Condition: Hypothyroidism
Intervention: Drug: Levothyroxine sodium new formulation
Outcome Measures: The proportion of patients that do not need a change of dose.;   The magnitude of the change in daily dose needed.;   Proportion of patients that obtained a thyroid stimulating hormone between 0.4-2.5 mU/L;   Change from baseline serum thyroid stimulating hormone (in mIU/L and percentage).
4 Unknown  Thyroxin Treatment in Sub Clinical Hypothyroidism, on the Apnea Hypopnea Index Score, Lipids and Highly Sensitive CRP
Condition: Dyslipidemia
Interventions: Drug: levothyroxine;   Drug: sugar pill
Outcome Measures: Effect of the treatment of subclinical hypothyroidism on the apnea hypopnea index (AHI) score.;   Effect of the treatment of subclinical hypothyroidism on the lipid profile in patient with dyslipidemia and on hs-CRP
5 Recruiting Effects of L-thyroxine Replacement on Serum Lipid and Atherosclerosis in Hypothyroidism
Conditions: Hypothyroidism;   Thyroid Diseases;   Endocrine System Diseases
Intervention: Drug: L-thyroxine
Outcome Measures: Rate of First CVD Events, CVD Mortality and All-cause Mortality;   Change in Serum Lipid Levels;   Change in Thickness of Blood Vessel Wall;   Change in Oxidative Stress and Chronic Inflammatory Factors Associated with Atherosclerosis
6 Recruiting Desiccated Thyroid Extract and Levothyroxine for Hypothyroidism Treatment
Condition: Primary Hypothyroidism.
Interventions: Drug: Levothyroxine;   Drug: Desiccated thyroid extract
Outcome Measures: thyroid-symptom questionnaire;   Wechsler Memory Scale-Version IV (WMS-IV);   Biochemical measures
7 Recruiting Thyroid Hormone Replacement for Subclinical Hypothyroidism
Condition: Subclinical Hypothyroidism
Interventions: Drug: Levothyroxine;   Drug: Placebo
Outcome Measures: Fatal and non-fatal cardiovascular events;   Thyroid-specific quality of life;   Health-related quality of life;   Handgrip strength;   Executive cognitive function;   Total mortality;   Basic Activities of Daily Living;   Extended activities of daily living;   Haemoglobin
8 Recruiting Treatment Trial of Subclinical Hypothyroidism in Down Syndrome
Conditions: Down Syndrome;   Subclinical Hypothyroidism
Intervention: Drug: Levothyroxine
Outcome Measures: Change in non-HDL cholesterol from baseline at 6, 12 and 18 months.;   Change in quality of life from baseline at 6, 12 and 18 months.
9 Recruiting L-Thyroxine Supplementation for Preterm Newborns Less Than 32 Weeks of Gestation With Hypothyroxinemia
Condition: Hypothyroxinemia
Interventions: Drug: L-Thyroxine;   Drug: water
Outcome Measures: Neurodevelopmental outcome;   Morbidity associated with management of newborns < 32 WG with hypothyroxinemia
10 Recruiting Effect of L-Thyroxine on Lipid Profiles and Atherosclerosis in Subclinical Hypothyroidism
Conditions: Hypothyroidism;   Thyroid Diseases;   Endocrine System Diseases
Intervention: Drug: L-thyroxine
Outcome Measures: change in lipid profile;   change in thickness of blood vessel wall;   change in endothelial function;   change of adipocytokines;   Change of Oxidative Stress and Chronic Inflammatory Factors Related with Atherosclerosis
11 Recruiting Thyroid Study Type 2 Diabetes Mellitus (T2DM)
Conditions: Diabetes;   Hypothyroidism
Intervention: Drug: Euthyrox (levothyroxine)
Outcome Measures: Thyroid hormone-induced change in whole body insulin sensitivity (change in insulin-stimulated glucose disposal) and muscle mitochondrial function;   Thyroid hormone-induced change of lipid content in skeletal muscle and liver and brown adipose tissue activity
12 Recruiting Early Levothyroxine Post Radioactive Iodine
Condition: Graves' Disease
Intervention: Drug: Levothyroxine
Outcome Measures: Prevention of overt hypothyroidism;   Quality of Life
13 Recruiting Antithyroid Drug Treatment of Thyrotoxicosis in Young People
Condition: Paediatric Thyrotoxicosis
Interventions: Procedure: Block and Replace;   Procedure: Dose Titration;   Drug: carbimazole;   Drug: propylthiouracil;   Drug: thyroxine
Outcome Measures: Remission rate as defined by patients who are biochemically euthyroid at the end of the 6 year study period.;   Biochemical control as reflected by blood TSH and thyroxine levels;   The frequency of adverse events on the 2 treatment regimens.
14 Recruiting The Effect of Coffee on the Absorption of Thyroid Hormone in Patients With Thyroid Carcinoma
Conditions: Thyroid Carcinoma;   Hypothyroidism
Interventions: Other: Black Coffee;   Other: Coffee with Milk;   Other: Black Tea;   Other: Water
Outcome Measures: Change in TSH (thyrotropin-stimulating-hormone) with each beverage type;   Change in TSH with various beverages;   Change in total T4 with each beverage type;   Change in free T4 with each beverage type;   Change in total T3 with each beverage type
15 Not yet recruiting Thyroid Hormones Treatment in Asthma Exacerbation
Condition: Asthma
Interventions: Drug: IV thyroxin;   Drug: Placebo
Outcome Measures: time to normalization of PEF (peak expiratory flow);   Length of stay;   Time to oxygenation;   heart rate;   respiratory rate
16 Recruiting Selenium Supplementation in Pregnancy
Conditions: Pregnancy;   Infertility;   Auto-immune Thyroiditis
Interventions: Dietary Supplement: Selenium;   Other: Sugar Pill Placebo;   Other: Selenium + L-Thyroxine (LT4);   Other: Sugar Pill Placebo + L-Thyroxine (LT4)
Outcome Measures: Changes in TPOab and/or Tgab;   Changes in thyroid volume and echogenicity;   Changes in thyroid hormones (TSH, FT4, FT3);   Evaluation of Maternal risks;   Evaluation of Infant risks;   Changes in of quality of life;   Evaluation of Health Services:;   Changes in the selenium-dependent antioxidant enzyme glutathione peroxidase;   Changes in implantation and pregnancy rates
17 Recruiting The TRUST Study - Depression Substudy
Conditions: Subclinical Hypothyroidism;   Depression
Interventions: Drug: Levothyroxine;   Drug: Placebo
Outcome Measure: Change from baseline in 15-items Geriatric Depression Scale
18 Recruiting Preconceptional Thyroid Screening and Childhood Nerocognitive Function
Condition: Hypothyroidism
Intervention: Procedure: levothyroxine
Outcome Measures: Offspring neurocognitive assessment at 0-3 yrs;   Offspring IQ assessment at 0-3 yrs;   Incidence of neonatal hypothyroid and complications
19 Unknown  The Effect of Thyroid Hormone Levels in Pregnant Women on the Intelligence Quotient (IQ) of Their Children
Conditions: Child Development Disorders;   Pregnancy;   Subclinical Hypothyroidism
Intervention:
Outcome Measure:
20 Recruiting Efficacy Assessment of Systematic Treatment With Folinic Acid and Thyroid Hormone on Psychomotor Development of Down Syndrome Young Children
Condition: Down Syndrome
Intervention: Drug: thyroid hormone and folinic acid
Outcome Measures: GMDS ( Griffiths Mental Development Scale);   BL (Brunet Lezine revised scale)