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Doctor insights on: Hyperthyroidism Affect Cardiac

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How could hyperthyroidism affect cardiac output?

How could hyperthyroidism affect cardiac output?

Hyperthyroidism: Hyperthyroidism is a excess metabolic state. If other systems are normal it will usually cause increased heart rate and cardiac output. In the face of a weak heart, it could be associated with decrease in cardiac output. Chronic hyperthyroidism can be associated with a cardiomyopathy causing decreased heart function. ...Read more

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Dr. Susan Wingo
525 doctors shared insights

Overactive Thyroid (Definition)

Hyperthyroidism, often called "overactive thyroid," is a condition where the thyroid secretes too much of the thyroid hormones. Common symptoms include heat intolerance, increased appetite, ...Read more


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How could hypertension affect cardiac output?

How could hypertension affect cardiac output?

Two ways: It can cause the heart muscle to get thick and stiff so that it does not relax and fill up with blood properly. It could also cause the heart muscle to become weak so that it does not squeeze or contract as forcefully. These are called diastolic dysfunction (too thick) or systolic dysfunction (weak and flabby). ...Read more

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Can adrenal hypo function affect the heart rate?

Can adrenal hypo function affect the heart rate?

Yes: Symptoms of adrenal insufficiency include hypoglycemia, dehydration, weight loss, and disorientation. Symptoms may also include weakness, tiredness, dizziness, low blood pressure that falls further when standing (orthostatic hypotension), cardiovascular collapse (failure), muscle aches, nausea, vomiting, diarrhea, etc... Heart rate can increase if there is dehydration or low blood pressure. ...Read more

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Can Synthroid (thyroxine) cause cardiac disturbances?

Can Synthroid (thyroxine) cause cardiac disturbances?

When overused: Yes. Taken in excess (or, much less commonly at a dose that's just too high for you) synthroid (thyroxine) can cause abnormal rhythms, particularly in the top chamber. These can manifest as palpitations, rapid heart rate, or even near-fainting symptoms. Lab tests can evaluate whether you have too much synthroid (thyroxine). ...Read more

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How could venoconstriction affect cardiac output?

How could venoconstriction affect cardiac output?

Venoconstriction?: Cardiac output is inversely proportional to total peripheral resistance (which is related to mean arterial pressure.) venoconstriction refers to the venous system and can't be measured. If venous return increases, preload increases, and by starling's law of the heart, cardiac output increases. However, severe venoconstriction could eventually diminish venous return and reduce co. Yes? ...Read more

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Does the tachycardia affect cardiac muscles?

Does  the tachycardia affect cardiac muscles?

Possibly: Prolonged periods of excessive heart rates can lead to weakening of the heart muscle (cardiomyopathy). It is important to identify causes of tachycardia and initiate treatment. ...Read more

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What factors can affect cardiac output?

What factors can affect cardiac output?

Cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the heart contracts. ...Read more

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Does adrenaline affect heart rate?

Does adrenaline affect heart rate?

Very much: Very much. That is why under extreme circumstances, specially dangerous one your body produces it to keep you very alert with increase heart rate. ...Read more

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How could vasoconstriction affect cardiac output?

How could vasoconstriction affect cardiac output?

It lowers it: Vasoconstriction increases the resistance to flow. This is called an afterload. It is like a pump having to pump water up a steep hill; it won't pump as well as on flat land. ...Read more

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What bodily factors affect heart rate?

What bodily factors affect heart rate?

Heart rate: Various factors influencing heart rate include body temperature, blood volume and hemoglobin content, thyroid status, exercise status, heart health, metabolic status, peripheral vascular resistance and other factors also ...Read more

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Can low thyroid levels affect a fetal heart rate?

Can low thyroid levels affect a fetal heart rate?

Yes, but the: fetus should be making it's own thyroid hormone after about 12 weeks of pregnancy, and it is this level which is important. Check w/your doctor. ...Read more

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Does cipralex affect heart rythmn?

Does cipralex affect heart rythmn?

Yes: Cipralex or Lexapro (escitalopram) is associated with dose depended qt interval prolongation and should not be used in those with cong. Long qt syndrome or known pre-existing qt interval prolongation or in combination with other medicines that prolong qt interval.It can precipitate malignant arrhythmia and sudden death! ...Read more

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Can hashimoto's thyroiditis cause a-fib or other heart problems?

Can hashimoto's thyroiditis cause a-fib or other heart problems?

Yes: The initial stages of hashimoto's is an over active thyroid which over stimulates the heart leading to atrial fibrillation. ...Read more

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How does noradrenaline affect cardiac output?

How does noradrenaline affect cardiac output?

Contractivity: Because it increases the contractivity of the heart as it is a catecholamine. ...Read more

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Congestive heart failure from thyorid disease? How can your thyroid affect your heart?

Congestive heart failure from thyorid disease? How can your thyroid affect your heart?

Thyroid and CHF: The thyroid regulates the metabolism increasing the heart rate over the course of the time - like whipping a horse - can produce heart issues as the heart is in overdrive with a high thyroid hormone level. ...Read more

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How would hypertension affect heart disease?

How would hypertension affect heart disease?

Hypertension: Htn causes secondary changes in the blood vessels which are associated with heart attack. ...Read more

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How do potassium levels affect cardiac output?

Not directly: Cardiac output is the amount of blood flow generated by the heart over a given time frame. Potassium is a critical electrolyte for body health and cardiac function, especially its rhythm. Although high or low potassium levels can create major, potentially fatal, irregularities in the heart rhythm, those levels do not directly affect the cardiac output per se. ...Read more

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Why doesn't tachycardia always affect cardiac output?

Why doesn't tachycardia always affect cardiac output?

Cardiac output: is stroke volume times heart rate. if stroke volume goes down more than heart rate goes up, cardiac output won't increase. stroke volume depends on preload (filling of the heart), afterload (resistance to flow), and contractility (how much the heart pumps for how much it is filled. For instance, if the heart rate goes up but the the heart doesn't have time to fill, output won't increase. ...Read more

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How could hyperthyroidism affect cardiac output?

Hyperthyroidism: Hyperthyroidism is a excess metabolic state. If other systems are normal it will usually cause increased heart rate and cardiac output. In the face of a weak heart, it could be associated with decrease in cardiac output. Chronic hyperthyroidism can be associated with a cardiomyopathy causing decreased heart function. ...Read more

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My 59yr old mom died 5 days after first beginning 300mg daily of Amitriptyline. She had heart disease, uncontrolled hyperthyroidism, & was on Adderall. Cardiac arrest is COD. Could the massive initiating Amitriptyline dosage have contributed to this?

My 59yr old mom died 5 days after first beginning 300mg daily of Amitriptyline. She had heart disease, uncontrolled hyperthyroidism, & was on Adderall. Cardiac arrest is COD. Could the massive initiating Amitriptyline dosage have contributed to this?

ECG required: All tricyclics antidepressants are know to cause or exacerbate heart rhythm issues, an ECG is a pre requisite to start them now a days, it’s hard to know what caused the cardiac arrest for sure, but she had other confounding factors as well ...Read more

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Could the wrong treatment of hyperthyroidism cause any serious health damage? I have been following my own treatment but don't feel very well lately

Could the wrong treatment of hyperthyroidism  cause any serious  health damage?
I have been following my own treatment but don't feel very well lately

Need endocrinologist: Treatment of hyperthyroidism should not be taken lightly. Working with a good endocrinologist is the best way to get this under control. Left untreated hyperthyroidism can result in "thyroid storm" which can be fatal. ...Read more

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Why shouldn't someone with hyperthyroid take metoprolol?

Why shouldn't someone with hyperthyroid take metoprolol?

Helpful: Beta blockers, such as metoprolol, are a part of the treatment of hyperthyroidism. Beta blockers block the effects of increased thyroid hormone on the heart and circulation. Once hyperthyroidism is controlled, then the beta blockers can typically be discontinued. ...Read more

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Since i found out I have hyperthyroidism i can't get any fat and im looseing more body fat then i already have..Weight 95 lb.Size 0/1 jeans.Been 6 mnth?

Since i found out I have hyperthyroidism i can't get any fat and im looseing more body fat then i already have..Weight 95 lb.Size 0/1 jeans.Been 6 mnth?

May take time: As long as your thyroid remains overactive, your metabolism will be speeded up and it will be difficult to regain the weight that you have lost. It is importaht that you are seen frequently and your treatment adjusted to bring your thyroid hormone levels to normal as soon as possible. ...Read more

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Hyperthyroid every year only 4-5mos.Normalizes by itself.5yrs now. My drs. Can't tell why just suggest tapazole (methimazole).Pls help.What is causing re-ocurance?

Autoimmune: The most common cause for hyperthyroidism in your age group is graves disease. This is an autoimmune disorder in which an antibody is stimulating your thyroid. The level of the antibody can vary, thereby causing your thyroid level to vary. Since it has been 5 yrs of recurrent hyperthyroidism, it is unlikely that it will simply stop happening. You should consider radioactive iodine when it recurs. ...Read more

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What is the best medication for hyperthyroidism if I don't want my thyroid removed?

What is the best medication for hyperthyroidism if I don't want my thyroid removed?

2 options: Antithyroid medication, like Methimazole or ptu, (propylthiouracil) are available. However, both come with side effects risk: liver toxicity and some potential toxicity to the part of bone marrow which is part of the immune system. Ptu (propylthiouracil) has been given a black box warning because of its association with some cases of liver failure. Radioablation is another treatment- oral radioactive iodine destroys the thyroid. ...Read more

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I have most of the symptoms of hypothyroidism/hyperthyroidism but i don't know if this is coincidence and they may be linked to something else?

Thyroid tests needed: It would be most unusual to have symptoms of both hypothyroidism and hyperthyroidism. You need thyroid tests to determine if there is a thyroid problem. ...Read more

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What other conditions or sicknesses could cause similar symptoms to those of hyperthyroidism? Dr. Says thyroid isn't issue after tests despite symptom

Nothing: Can cause the full spectrum of signs and symptoms that hyperthyroidism does. Remember, diseases cause symptoms, but just because you have symptoms doesn't mean you have a certain disease. Check/w your doctor. ...Read more

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How do treat hyperthyroidism?

Three ways: There are medications that lower the thyroid level, surgical removal of all or part of the gland, radioactive iodine. An endocrinologist should be able to guide which method is best for a particular patient. ...Read more

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How can I cure hyperthyroidism?

How can I cure hyperthyroidism?

Curing hyperthyroid: To cure it, you need to know what causes it. There are many causes for hyperthyroidism, some are temporary and goes away without treatment, others require treatment to permanently treat it. In general, if u take away the thyroid gland (surgery or kill it with radioactive iodine), then the hyperthyroidism is cured (..But then you will be hypothyroid). U need a physician to help u with this disease. ...Read more

Dr. Susan Wingo
559 doctors shared insights

Hyperthyroidism (Definition)

A medical condition that lowers the level of thyroid hormone to a point where the patient has a marked ...Read more


Dr. Jan Lei Iwata
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more