Saturday, December 3, 2011

The Link Between Thyroid Cancer and Hypertension


!±8± The Link Between Thyroid Cancer and Hypertension

There have been a number of studies carried out in order to see what relation there is, if any, between thyroid problems and hypertension. However, is there a link between Thyroid Cancer and Hypertension?

In one study carried out on adults suffering from PH (pulmonary hypertension) it has been suggested that they may be at higher risk of getting a thyroid disease.

In the study carried out by the Mayo Clinic in Jacksonville, USA they studied 358 people over a 14 year period. Over this time tests were performed and people where randomly selected to partake in particular parts of the study.

Of the whole group being studied it was discovered that 31% of them had some kind of thyroid disease present in the uncontrolled group. Whilst those that were taking medication in order to control their hypertension only 15% of these showed any form of thyroid disease.

Yet even though there seemed to be a somewhat high prevalence of a thyroid disease in many of the subjects whilst treatment was being administered, there seemed to be no correlation between thyroid disease and the severity of the hypertension that the person was suffering from.

However, the link between hypertension and thyroid cancer is less clear, but there is a link non-the less.

It is thought that about 20,000 people are diagnosed each year with Thyroid cancer, the majority are diagnosed with Papillary and/ or follicular thyroid cancer, and in most cases the cancer can be cured.

It generally appears as a nodule, a growth in the thyroid gland, and is usually contained in the nodule and so reducing the risk of metastasis.

However, just because a nodule is present it does not mean a person has cancer. In about 99% of cases, the nodules in the thyroid turn out to be benign and non-cancerous.

The most common sign of a nodule in the thyroid is a lump in the neck, but there are also other physical symptoms that can show themselves; including a pain in the neck, which can travel up to the ear, difficulty swallowing, feeling hoarse or suffering from a persistent cough, or having a shortness of breath.

Although, of course, many of the above symptoms could be associated with other conditions as well so it is worth having a check up if the symptoms persist.

The numbers of cases that are diagnosed with thyroid cancer do seem to be on the increase. It is not known why this is the case, although it may be due to the better detection methods available.

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The main link between thyroid cancer and hypertension seems to be in those that have one of the predominantly inherited conditions; Multiple endocrine neoplasia (MEN) syndromes. These syndromes are rare and occur when a number of the endocrine glands develop non-cancerous or cancerous tumours or they enlarge.

There are considered to be three types of MEN, which are type 1, type 2A and type 2B, and they all increase the levels of hormones in the body.

For those with MEN type 2 there is a high risk of the person developing medullary thyroid cancer, and about a 50% chance of them developing tumours of the adrenal glands, which can raise blood pressure levels because of the epinephrine and other substances that are released. This elevated blood pressure can be intermittent or persistent and often can be severe.

There is a link between Thyroid Cancer and Hypertension, but in the majority of cases, those with thyroid cancer are treated successfully with few complications.


The Link Between Thyroid Cancer and Hypertension

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