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Urology · Adrenal & Endocrine

Conn’s Syndrome Treatment in Hyderabad: Curable Hypertension at Lux Hospitals

Conn’s syndrome is the overproduction of aldosterone by the adrenal glands. Aldosterone tells the kidney to hold on to sodium and shed potassium, so the result is high blood pressure and low potassium.

It is the most common curable cause of hypertension, and it is substantially under-diagnosed: many people are treated with three or four blood pressure tablets for years without anyone testing for it. Our urologists at Lux Hospitals, HITEC CITY test for it properly, and where one gland is responsible, remove it laparoscopically.

  • Curable Hypertension
  • Adrenal Vein Sampling
  • Laparoscopic Surgery
Labelled medical illustration of Conn’s Syndrome

What is Conn’s Syndrome?

Conn’s syndrome, also called primary hyperaldosteronism, is the autonomous overproduction of aldosterone by the adrenal glands. Aldosterone is the hormone that regulates the balance of sodium and potassium. It instructs the kidney to retain sodium (and water with it) while excreting potassium. In excess, that produces exactly what you would predict: raised blood volume and blood pressure, and depleted potassium.

What makes it clinically important is that it is common and curable. It is now recognised in something like five to ten per cent of people with hypertension, and considerably more among those whose blood pressure resists treatment. Where the cause is a single adenoma in one gland, removing that gland cures or substantially improves the hypertension.

It is also more harmful than equivalent blood pressure from other causes. Excess aldosterone damages the heart, kidneys and blood vessels directly, independent of the pressure it produces, causing fibrosis of the heart muscle and accelerated kidney decline. This is why identifying and treating it specifically matters rather than simply controlling the numbers.

Causes of Conn’s Syndrome

Two causes account for almost all cases, and the distinction between them determines whether surgery is appropriate.

  • Adrenal adenoma

    A benign tumour in one adrenal gland producing aldosterone autonomously. Around a third of cases, and the form that surgery cures.

  • Bilateral adrenal hyperplasia

    Both glands enlarged and overproducing. The commonest cause, accounting for roughly two-thirds, and treated with medication rather than surgery.

  • Familial hyperaldosteronism

    Several inherited forms, uncommon but worth considering in young patients or where there is a strong family history of early hypertension or stroke.

  • Unilateral hyperplasia

    Enlargement of one gland only, without a discrete adenoma. Behaves like an adenoma and responds to removal of that gland.

  • Adrenal carcinoma

    A malignant aldosterone-producing tumour. Rare, and suspected where the tumour is large or accompanied by other hormone excess.

The whole diagnostic effort after confirming the hormone excess is aimed at one question: is this one gland or both? Removing a gland in bilateral disease achieves nothing and leaves the patient worse off.

Symptoms of Conn’s Syndrome

Many people have no symptoms beyond stubborn high blood pressure. Where symptoms occur, they follow from low potassium.

Common features

  • High blood pressure resistant to treatment
  • Blood pressure needing three or more medications
  • Muscle weakness and cramps
  • Fatigue and low energy
  • Passing urine frequently, especially at night
  • Excessive thirst

Features from low potassium

  • Numbness or tingling in the hands and feet
  • Palpitations or an irregular heartbeat
  • Severe muscle weakness or temporary paralysis
  • Headaches from raised blood pressure
  • Constipation
  • Muscle spasms

Not everyone with Conn’s syndrome has low potassium: a substantial proportion have entirely normal levels. Waiting for low potassium before testing is the commonest reason the diagnosis is missed.

How Conn’s Syndrome is Diagnosed

Diagnosis has three stages: screening, confirmation, then determining whether one gland or both is responsible.

  1. Aldosterone-to-renin ratio

    The screening test. In Conn’s syndrome aldosterone is high while renin is suppressed, producing a characteristically raised ratio.

  2. Medication review before testing

    Several blood pressure drugs (particularly spironolactone, beta blockers and diuretics) distort the result and must be adjusted beforehand.

  3. Confirmatory testing

    A saline infusion or salt loading test. In health this suppresses aldosterone; in Conn’s syndrome the autonomous production continues regardless.

  4. CT of the adrenal glands

    Images the glands and detects an adenoma. It is not sufficient on its own, since incidental non-functioning nodules are common and can mislead.

  5. Adrenal vein sampling

    Blood sampled directly from each adrenal vein to establish which gland is overproducing. The definitive test for lateralisation, and the one that decides on surgery.

  6. Assessing end-organ damage

    Kidney function, ECG and echocardiography, since excess aldosterone damages heart and kidney independently of blood pressure.

Adrenal vein sampling matters because CT alone is wrong often enough to be dangerous. A visible nodule may be non-functioning while the opposite, normal-looking gland is the true source, and operating on the wrong side is irreversible.

Treatment Options

Surgery for one-sided disease, medication for both-sided. Getting that distinction right is the entire point of the workup.

Medical

Medication and lifestyle

  • Spironolactone

    An aldosterone receptor blocker and the mainstay for bilateral disease. Highly effective, though it can cause breast tenderness and enlargement in men.

  • Eplerenone

    A more selective aldosterone blocker with fewer hormonal side effects. Preferred where spironolactone is not tolerated.

  • Potassium correction

    Supplements to restore potassium, usually needed only until the aldosterone blocker takes effect, since it conserves potassium itself.

  • Additional blood pressure medication

    Added where an aldosterone blocker alone does not achieve target, though many patients need considerably less once the right drug is used.

  • Low-sodium diet

    Genuinely effective here, because the underlying problem is sodium retention. Reducing salt directly reduces the blood pressure effect.

  • Weight and exercise management

    Supports blood pressure control alongside medication and reduces overall cardiovascular risk.

Surgical

Adrenalectomy for one-sided disease

  • Laparoscopic adrenalectomy

    Keyhole removal of the affected gland where vein sampling confirms one-sided overproduction. Small incisions, two to three days in hospital.

  • Retroperitoneoscopic adrenalectomy

    A posterior keyhole approach avoiding the abdominal cavity entirely. Useful in patients with previous abdominal surgery.

  • Partial adrenalectomy

    Removing the adenoma while preserving normal adrenal tissue, considered in selected cases and in bilateral disease.

  • Open adrenalectomy

    Reserved for large tumours or where adrenal carcinoma is suspected and complete intact removal is essential.

After removal of a unilateral adenoma, blood pressure is cured outright in roughly a third to a half of patients and substantially improved in most of the rest. Low potassium corrects in nearly everyone.

The Laparoscopic Adrenalectomy Procedure

Removing one adrenal gland takes around ninety minutes to two hours, with two to three days in hospital.

Keyhole adrenal surgery under general anaesthesia

  1. Pre-operative preparation

    Potassium corrected and blood pressure controlled beforehand, usually with an aldosterone blocker for several weeks. Operating with low potassium is unsafe.

  2. Anaesthesia and positioning

    General anaesthesia, positioned on your side so the adrenal gland comes forward and surrounding organs fall away under gravity.

  3. Port placement

    Three or four small ports along the flank, with the abdomen insufflated with carbon dioxide to create working space.

  4. Exposing the gland

    The colon is mobilised, and on the left the spleen and pancreas are moved aside; on the right the liver is retracted to reach the gland beside the vena cava.

  5. Dividing the adrenal vein

    The adrenal vein is clipped and divided early. Blood pressure often changes noticeably at this moment as the hormone supply is interrupted.

  6. Removing the gland

    The gland is freed from surrounding fat and removed in a retrieval bag so it comes out intact for histology.

  7. Post-operative monitoring

    Potassium and blood pressure watched closely. Aldosterone blockers are stopped and other antihypertensives often reduced within days.

Potassium can rise sharply in the first days after surgery, particularly if supplements or spironolactone continue out of habit. Medications are reviewed and stopped deliberately rather than left running.

Why Choose Lux Hospitals for Conn’s Syndrome Treatment?

This is a curable cause of hypertension that is routinely missed. Here is why patients trust us:

  • Lateralisation done properly

    Adrenal vein sampling before surgery, because CT alone is wrong often enough that operating on it risks removing the wrong gland.

  • Laparoscopic adrenal surgery

    Keyhole adrenalectomy with small incisions, a two to three day stay, and careful management of potassium and blood pressure afterwards.

  • Comprehensive care

    From the first consultation through to post-treatment follow-up, with one team throughout.

  • Convenient location

    Our hospital is in HITEC CITY, near IKEA: easily reachable from across Hyderabad.

Recovery & Aftercare

Recovery from keyhole surgery is quick, and the blood pressure benefit continues developing over months.

  • Days 1–3

    Mobilising the day of surgery. Potassium and blood pressure monitored closely, and aldosterone blockers stopped. Discharge at two to three days.

  • Weeks 1–2

    Port sites heal. Blood pressure medications reviewed and frequently reduced: many patients need considerably fewer than before.

  • Weeks 2–4

    Most people return to desk work. Muscle weakness and cramps from low potassium resolve, often noticeably.

  • Months 1–3

    Blood pressure continues improving. Repeat aldosterone and renin testing confirms biochemical cure.

  • Months 3–12

    Full effect on blood pressure becomes apparent. Blood vessel changes from years of hypertension take this long to remodel.

Aftercare

  • Stop potassium supplements as directed

    Potassium can rise sharply once the aldosterone excess is removed. Supplements and spironolactone are stopped deliberately, not left running.

  • Have blood pressure reviewed early

    Medications frequently need reducing within days of surgery. Continuing the old regimen unchanged can cause blood pressure to fall too far.

  • Keep salt intake low

    Reducing sodium remains worthwhile after treatment, both for blood pressure and for the cardiovascular risk that years of hypertension have built.

  • Allow months for the full benefit

    Blood pressure continues improving for up to a year as the blood vessels remodel. Judging the result at six weeks understates it.

  • Attend biochemical follow-up

    Aldosterone, renin and potassium are rechecked to confirm cure. Persisting abnormality suggests the other gland is also involved.

  • Continue cardiovascular risk management

    Aldosterone excess damages heart and kidneys directly. Even after cure, existing damage needs ongoing attention.

Blood pressure is cured outright in roughly a third to a half after removal of a unilateral adenoma, and improved in most of the remainder. The longer hypertension has been present beforehand, the less likely a complete cure, which is an argument for testing early.

When Should You See a Specialist?

Book a consultation if any of the following apply.

  • Blood pressure needing three or more medications to control.
  • High blood pressure alongside low potassium on a blood test.
  • High blood pressure diagnosed before the age of forty.
  • Muscle weakness, cramps or palpitations with hypertension.
  • An adrenal mass found incidentally on a scan.
  • A family history of early hypertension or stroke.

Cost of Conn’s Syndrome Treatment in Hyderabad

The diagnostic pathway is a real part of the cost, particularly adrenal vein sampling, but it is what makes surgery worth doing.

Procedure Estimated Cost
Consultation Per visit ₹800 – ₹1,500
Aldosterone-renin ratio Screening test ₹3,000 – ₹7,000
Confirmatory saline suppression test Day-care procedure ₹6,000 – ₹14,000
CT adrenals Images both glands ₹6,000 – ₹14,000
Adrenal vein sampling Determines which gland to remove ₹1,10,000 – ₹2,00,000
Laparoscopic adrenalectomy Two to three days in hospital ₹2,40,000 – ₹4,20,000
Monthly medical therapy Spironolactone or eplerenone ₹600 – ₹3,000

What changes the estimate

  • One gland or both

    Bilateral disease is treated with medication at a few hundred rupees monthly. Unilateral disease warrants surgery, which is a one-off cost that often ends lifelong tablets.

  • Whether vein sampling is needed

    It is a significant cost, but operating on the wrong gland is irreversible, which is why it is done before surgery in most adult patients.

  • Existing organ damage

    Cardiac and kidney assessment adds to the workup where hypertension has been long-standing and poorly controlled.

  • Room category

    A shared ward, a twin-sharing room or a private suite: the largest single swing in most estimates.

  • Insurance & TPA cover

    We are empanelled with most major insurers, and our team files the pre-authorisation for you.

Every figure above is an indicative range, not a quote. After your consultation you are given a written, fixed-cost estimate, and that is the number you pay, with no additions once treatment begins.

Our Surgeons

Conn’s Syndrome Specialists at Lux Hospitals

The urologists who treat adrenal and hormonal disorders at our HITEC CITY hospital.

  • Portrait of Dr. Vipin Reddy B

    Dr. Vipin Reddy B

    Consultant Urologist & Andrologist

    MBBS, MS, DrNB (Urology)

    10 years experience

  • Portrait of Dr. Sreeniketh Reddy

    Dr. Sreeniketh Reddy

    Consultant Urologist & Andrologist

    MBBS, MS, MCh (Urology)

    9 years experience

View All Surgeons
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Reviews from patients treated for urological and adrenal conditions at Lux Hospitals, Hyderabad.

From the Blog

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Written by Dr. Vipin Reddy B on urological and hormonal care.

Got Questions?

Frequently Asked Questions

Common questions about Conn’s syndrome, adrenal surgery and what treatment costs at Lux Hospitals.

How is Conn’s syndrome treated?
It depends on whether one gland or both is responsible. Unilateral disease from an adenoma is treated by laparoscopic removal of that gland, which cures or substantially improves blood pressure. Bilateral hyperplasia (the commoner form) is treated with an aldosterone blocker such as spironolactone or eplerenone, alongside a low-sodium diet.
What happens when aldosterone is high?
The kidney retains sodium and water while excreting potassium. That raises blood volume and blood pressure and depletes potassium, producing muscle weakness, cramps, fatigue, frequent urination and palpitations. Excess aldosterone also damages the heart and kidneys directly, independently of the blood pressure it causes.
Is surgery necessary for Conn’s syndrome?
Only for unilateral disease. Where adrenal vein sampling confirms that one gland is overproducing, removing it is the definitive treatment. Where both glands are involved (roughly two-thirds of cases) surgery achieves nothing, and medication is the correct approach.
Can Conn’s syndrome be cured?
Yes, in unilateral disease. Removing the affected gland cures hypertension outright in roughly a third to a half of patients and substantially improves it in most of the rest, with potassium normalising in nearly everyone. Bilateral disease is controlled rather than cured, but controlled very effectively.
Why do I need adrenal vein sampling if the CT already shows a nodule?
Because CT is wrong often enough to be dangerous here. Non-functioning adrenal nodules are common incidental findings, and the visible nodule may not be the source while the normal-looking opposite gland is. Vein sampling measures hormone output from each gland directly, and removing the wrong one is irreversible.
Is Conn’s syndrome genetic?
Usually not. Most cases are caused by a sporadic adrenal adenoma or bilateral hyperplasia with no inherited component. Familial forms of hyperaldosteronism do exist and are worth considering in young patients or where there is a strong family history of early hypertension or stroke.
Can both adrenal glands be affected?
Yes, and this is actually the commoner situation: bilateral adrenal hyperplasia accounts for around two-thirds of cases. It is managed with aldosterone-blocking medication rather than surgery, since removing both glands would create lifelong steroid dependence for no net gain.
Can lifestyle changes help manage Conn’s syndrome?
They help but do not treat it. A low-sodium diet is genuinely useful here because the underlying problem is sodium retention. Weight management and regular exercise support blood pressure control. None of these correct the hormone excess, so they complement medication or surgery rather than replacing them.
Can I live a normal life after treatment?
Yes. After surgery for unilateral disease, most people need far fewer blood pressure medications or none at all, and the muscle weakness and cramps resolve. On medication for bilateral disease, blood pressure and potassium are usually well controlled with a single well-chosen drug and normal activity is unaffected.
How much does Conn’s syndrome treatment cost in Hyderabad?
Screening and confirmatory testing is ₹9,000–₹21,000, with CT adding ₹6,000–₹14,000 and adrenal vein sampling ₹1,10,000–₹2,00,000. Laparoscopic adrenalectomy is ₹2,40,000–₹4,20,000. Medical management with spironolactone or eplerenone is ₹600–₹3,000 monthly.

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