Acromegaly: What Is It? Causes, Symptoms, and Treatment
What Is Acromegaly?
Acromegaly is a condition characterized by abnormally high levels of growth hormone due to excessive hormone secretion from the pituitary gland. It is a chronic disorder that affects various parts of the body, including cartilage, internal organs, and soft tissues. The condition commonly occurs in adults, affecting both men and women.
What Causes Acromegaly?
Acromegaly is primarily caused by a benign tumor in the pituitary gland, known as a pituitary adenoma.
This tumor causes the pituitary gland to produce excessive amounts of growth hormone (GH), which stimulates the liver and other tissues to increase production of insulin-like growth factor 1 (IGF-1).
As a result, certain bones and soft tissues gradually grow abnormally and increase in size. Without timely treatment, these changes may lead to long-term health complications.
What Are the Symptoms of Acromegaly?
Common symptoms of acromegaly include:
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Enlarged hands and feet: Rings that previously fit may become tight, and larger shoe sizes may be needed.
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Changes in facial appearance: A protruding jaw, thickened nose and lips, and increased spacing between the teeth.
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Headaches and vision problems: Persistent headaches, narrowing of the visual field, or abnormal vision.
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Skin changes: Thickened, rough, and oily skin.
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Sleep disturbances: Heavy snoring and obstructive sleep apnea.
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Joint and muscle problems: Joint pain, muscle pain, and numbness in the hands due to compression of nerves at the wrist.
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Hormonal changes: Menstrual irregularities and reduced sexual function.
Symptoms of acromegaly usually develop gradually over time. Patients and their family members may notice physical changes by comparing old photographs or observing differences in appearance over several years.
How Is Acromegaly Diagnosed?
Doctors may diagnose acromegaly through the following examinations:
1. Hormone Level Testing
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Blood tests to measure insulin-like growth factor 1 (IGF-1).
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Tests to evaluate growth hormone (GH) levels.
2. Magnetic Resonance Imaging (MRI)
An MRI scan of the pituitary gland is performed to identify abnormalities or tumors in the gland.
How Is Acromegaly Treated?
Treatment for acromegaly depends on the underlying cause and severity of the condition. Available treatment options include:
1. Surgical Removal of the Tumor
Surgery is considered the most effective treatment option. When a tumor is detected and treated while it is smaller than 1 centimeter, the chances of a complete cure are higher.
Surgical approaches include:
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Endoscopic transnasal surgery: A commonly used technique in which surgeons access the tumor through the nasal cavity using an endoscope. This allows doctors to visualize the surgical area in detail, remove the tumor precisely, and support faster recovery.
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Open craniotomy: This approach may be considered when the tumor is very large, approximately 4–5 centimeters.
2. Medication
Medications may be prescribed to control hormone levels, reduce tumor size, and lower hormone production before surgery.
3. Radiation Therapy
Radiation therapy may be considered for patients who have residual tumor tissue after surgery or those who are unable to undergo an operation.
Although radiation therapy does not involve surgical incisions, it carries a risk of affecting nearby organs and tissues.
How Should Patients Care for Themselves After Acromegaly Treatment?
Following treatment, particularly surgery, patients should take appropriate precautions and attend regular medical follow-up appointments.
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During the first week after surgery: Avoid coughing, sneezing, and excessive straining. Avoid spicy or very hot foods, as they may increase swelling of the nasal lining and make breathing more difficult. Frequent nasal rinsing may be recommended.
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Monitor hormone levels: Attend all scheduled medical appointments to check GH and IGF-1 levels.
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Follow-up imaging: Undergo pituitary imaging examinations when recommended by the physician.
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Monitor related health conditions: Evaluate and manage associated conditions such as diabetes, high blood pressure, and sleep apnea.
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Continue prescribed treatment: Take medications as directed and attend regular medical checkups.
How Serious Is Acromegaly?
If acromegaly is left untreated, it may lead to complications beyond changes in physical appearance.
Possible complications include:
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Cardiovascular disease
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High blood pressure
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Diabetes
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Obstructive sleep apnea
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Colorectal cancer
Early diagnosis and appropriate treatment are important to reduce the risk of complications.
Can Acromegaly Be Completely Cured?
Acromegaly can be completely cured in some patients, depending on the size of the pituitary tumor.
The smaller the tumor at the time of diagnosis and treatment, the greater the chance of achieving a complete cure.
Can Acromegaly Be Prevented?
Acromegaly cannot be prevented.
Individuals who develop symptoms should consult a medical specialist promptly for a thorough examination and appropriate treatment.
Delaying treatment may increase disease severity and reduce the likelihood of a complete cure.
Frequently Asked Questions (FAQ)
Q: What is the difference between acromegaly and gigantism?
A: Both gigantism and acromegaly result from excessive growth hormone production. However, they differ in the age at which the condition develops and how the body is affected.
Gigantism occurs during childhood or adolescence, before the bones have fully matured. Excess growth hormone stimulates rapid bone growth and lengthening, causing affected children to become unusually tall and develop longer arms and legs compared with others of the same age.
Acromegaly, on the other hand, typically develops in adults between the ages of 30 and 50, after bone growth has been completed.
Rather than increasing height, excessive growth hormone causes bones to enlarge outward and soft tissues to expand. Common physical changes include enlarged hands and feet, a prominent forehead, a protruding jaw, pronounced cheekbones, thickened nose and lips, and enlargement of internal organs.
Q: Is acromegaly hereditary?
A: Most cases of acromegaly are not inherited.
The condition generally develops because a pituitary tumor produces excessive amounts of growth hormone.
However, certain genetic abnormalities may increase the risk of developing pituitary tumors or hormonal disorders in some individuals.
Q: Can acromegaly recur after treatment?
A: Yes. Acromegaly can recur even after treatment.
Therefore, patients should attend all scheduled follow-up appointments with their medical specialists to monitor their condition and detect any signs of recurrence.
Reference :
Independent Writer
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