Pheochromocytoma Treatment in Delhi, India

A pheochromocytoma is a rare tumour that develops in the adrenal glands, located above the kidneys. It arises from chromaffin cells, which normally produce hormones like adrenaline and noradrenaline. However, when the pheochromocytoma tumour develops in these cells, it triggers excessive hormone release, causing symptoms such as high blood pressure, rapid heartbeat, and excessive sweating. Although most pheochromocytomas are non-cancerous, they can still pose serious health risks if left untreated. In rare cases, they may become malignant and spread. Early diagnosis and treatment are essential to avoid complications.

The exact cause of pheochromocytoma remains unclear. In most cases, these tumours occur sporadically without an identifiable reason. However, a significant percentage of cases are linked to inherited genetic mutations. Certain gene changes can increase the likelihood of developing tumours in the adrenal glands and other parts of the body.

Common genetic syndromes associated with pheochromocytoma include:

• Multiple Endocrine Neoplasia type 2 (MEN 2)
• Von Hippel-Lindau disease (VHL)
• Neurofibromatosis type 1 (NF1)
• Hereditary paraganglioma-pheochromocytoma syndromes

Risk factors for pheochromocytoma include:

• Family history of pheochromocytoma or related genetic disorders
• Inherited genetic mutations linked to tumour development
• Age (most cases are diagnosed between 20 and 50 years)
• Personal history of adrenal or paraganglionic tumours

While pheochromocytomas can occur at any age, genetic testing may be recommended for individuals with a family history of the disease or those diagnosed at a younger age.

Pheochromocytomas cause excessive catecholamine production, leading to episodic symptoms that may be triggered by stress, physical activity, certain medications, or foods high in tyramine. Common symptoms include:

High Blood Pressure (Hypertension)

Blood pressure may reach dangerously high levels, potentially causing a hypertensive crisis. This is a medical emergency requiring immediate treatment to prevent complications like strokes or heart attacks.

Headache

Headache may also come with dizziness and sensitivity to light, making it difficult to concentrate or carry out daily activities. This can make it difficult to focus or carry out daily tasks.

Excessive Sweating 

Some people may sweat a lot even when they are not feeling hot or doing any physical activity. This sudden, heavy sweating is a common symptom and can happen at any time.

Rapid Heartbeat 

A person may feel that their heart is pounding, racing, or skipping beats. These irregular heartbeats (arrhythmias) can cause discomfort and may be alarming.

Tremors

Shaking or trembling, especially in the hands, is another symptom. This happens because the nervous system becomes overly active, making it difficult to control movements.

Pale Skin 

The skin may become unusually pale due to the tightening of blood vessels. This happens when the nervous system becomes overly active, making movements harder to control.

Shortness of Breath

During an episode, a person may struggle to breathe properly. This may be accompanied by chest pain, making it feel like the airways are restricted.

Anxiety or Panic Attacks

A person may suddenly feel extremely anxious, fearful, or uneasy, even without any clear reason. Some may also have a strong feeling that something bad is about to happen, which can be very distressing.

Early diagnosis of pheochromocytoma is crucial for effective treatment. The diagnostic process usually involves the following tests:

Laboratory Tests

• Blood and Urine Tests: Measurement of catecholamines and their metabolites (metanephrines) in the blood or urine. Elevated levels strongly suggest the presence of a pheochromocytoma.
• Plasma Free Metanephrines Test: Considered one of the most sensitive diagnostic tests for pheochromocytomas.

Imaging Studies

Once biochemical tests confirm excessive catecholamine production, imaging techniques are used to locate the tumour:

• Computed Tomography (CT) Scan: Provides detailed images of the adrenal glands to identify tumours.
• Magnetic Resonance Imaging (MRI): Particularly useful for detecting soft tissue tumours.
• Metaiodobenzylguanidine (MIBG) Scintigraphy: A specialised scan that helps detect and differentiate pheochromocytomas from other adrenal abnormalities.
• Positron Emission Tomography (PET) Scan: Used in cases where malignancy is suspected.

The primary treatment for pheochromocytoma is surgical removal of the tumour. However, preoperative and postoperative management is essential to ensure a successful outcome.

Preoperative Management

Before surgery, medications are administered to stabilise blood pressure and heart rate, reducing the risk of complications during the procedure:

• Alpha-Blockers: Help to relax blood vessels and lower blood pressure.
• Beta-blockers: Used after alpha-blockers to control heart rate and prevent arrhythmias.
• Calcium Channel Blockers: An alternative for patients who cannot tolerate alpha-blockers.

Surgical Treatment

• Adrenalectomy: The standard surgical procedure to remove the tumour. In most cases, minimally invasive (laparoscopic) surgery is preferred.
• Partial Adrenalectomy: Aimed at preserving adrenal function, particularly in patients with hereditary pheochromocytomas.

Other Treatment Options

For patients with malignant or inoperable pheochromocytomas, additional therapies may be required:

• Radiation Therapy: Used to target cancerous cells.
• Chemotherapy: Administered in cases where the tumour has metastasised.
• Targeted Therapy: Newer treatments that specifically attack cancer cells while sparing normal tissues.

Even after successful treatment, lifelong monitoring is crucial to detect potential recurrence. Management strategies include:

Regular Check-ups 

Routine blood pressure monitoring and biochemical tests to assess catecholamine levels. Follow-up appointments generally include blood pressure checks, imaging scans, and biochemical tests to assess adrenal function and detect any signs of tumour regrowth.

Medication Adherence 

Strict adherence to prescribed treatments is essential for controlling symptoms. Skipping prescribed meds can increase the risk of dangerous hypertensive episodes or cardiac complications.

Lifestyle Modifications

Certain habits can help prevent symptom recurrence and improve overall well-being. A balanced diet low in sodium and stimulants (such as caffeine and alcohol), along with stress management techniques like yoga or meditation, can support heart and adrenal health.

If left untreated, pheochromocytomas can lead to severe complications, including:

Cardiovascular Complications 

Chronic high blood pressure increases the risk of heart disease, stroke, and heart failure. Over time, the heart may struggle to pump efficiently, leading to symptoms such as fatigue, shortness of breath, and swelling in the legs.

Kidney Damage 

Prolonged hypertension can damage the kidneys, potentially leading to chronic kidney disease or, in severe cases, kidney failure requiring dialysis.

Metastatic Pheochromocytoma 

Although rare, some tumours become malignant and spread to other parts of the body. In such cases, treatment becomes more complex and may involve a combination of surgery, chemotherapy, and targeted therapy.

What are pheochromocytoma spells or attacks?

Pheochromocytoma spells are sudden episodes of symptoms that come and go, often without a clear trigger. These symptoms can include headaches, sweating, rapid heartbeat, and high blood pressure.

What can trigger a pheochromocytoma spell?

Triggers may include physical exertion, stress, sudden changes in body position, labour, surgery, or certain foods and medications.

Can certain foods trigger pheochromocytoma symptoms?

Yes, foods high in tyramine, such as aged cheese, fermented products, soy-based foods, chocolate, and smoked meats, can trigger spells.

Which medicines can worsen pheochromocytoma symptoms?

Medicines like tricyclic antidepressants, MAOIs, and stimulants such as caffeine, amphetamines, or cocaine can trigger or worsen spells.

Can body movements cause pheochromocytoma spells?

Yes, changing body positions suddenly, like bending over or standing up quickly, can sometimes trigger spells.

Can pheochromocytoma spells be controlled through lifestyle changes?

Yes, avoiding known triggers like stress, certain foods, and medications can help manage spells alongside medical care.

Are there dietary restrictions for people with pheochromocytoma?

Yes, it's advised to avoid tyramine-rich foods such as aged cheeses, fermented products, soy-based items, and smoked meats.

Can caffeine worsen pheochromocytoma symptoms?

Yes, stimulants like caffeine can trigger or intensify pheochromocytoma spells and should be avoided.

How long does it take to recover after pheochromocytoma surgery?

Most patients recover within a few weeks, but full recovery and monitoring for blood pressure normalization may take longer.

Do I need to make long-term lifestyle changes after pheochromocytoma treatment?

Yes, ongoing blood pressure monitoring, stress management, and avoiding trigger foods or medications are often recommended.

Can pheochromocytoma return after treatment?

In some cases, pheochromocytoma can recur, so regular follow-up and monitoring are essential.

Will I need lifelong follow-up after pheochromocytoma surgery?

Yes, regular follow-up is recommended to monitor hormone levels and ensure no recurrence.

Can pregnancy trigger pheochromocytoma spells?

Yes, labour and delivery can trigger spells; pregnant patients require careful management and monitoring.

Is pheochromocytoma hereditary?

While the cause is not discussed here, those with a family history may need genetic counselling and monitoring.

Can stress management techniques help with pheochromocytoma?

Yes, techniques like meditation, yoga, and relaxation exercises can help reduce the likelihood of spells.

Is it safe to exercise with pheochromocytoma?

Light to moderate exercise may be allowed with medical advice, but intense physical activity can trigger spells.

Do I need to stop any medications if I have pheochromocytoma?

You may need to avoid certain antidepressants, stimulants, or medications that raise blood pressure; consult your doctor.

Can I travel if I have pheochromocytoma?

Travel is possible, but you should avoid stress, carry medications, and consult your doctor for guidance before travel.

Are there alternative therapies for managing pheochromocytoma symptoms?

Alternative therapies can complement treatment for stress relief, but medical management remains essential.

Can sudden posture changes trigger spells?

Yes, movements like bending over or quickly standing up can sometimes trigger attacks.

Is pheochromocytoma more common in certain age groups?

It can occur at any age but is most commonly diagnosed in adults between 30 and 50 years old.

Can pheochromocytoma affect mental health?

Yes, the stress of symptoms and hormonal changes can impact mental health, and counselling or support may help.

Are routine blood pressure checks important for pheochromocytoma patients?

Yes, regular monitoring of blood pressure is essential for early detection of changes and preventing complications.

Should I inform my anaesthetist about pheochromocytoma before surgery?

Absolutely, informing your anaesthetist is crucial to avoid medications or procedures that may trigger dangerous spells.