Parathyroidectomy for primary hyperparathyroidism- a guide for patients.

Single parathyroid adenoma in a patient with primary hyperparathyroidism

Primary hyperparathyroidism (PHPT) is a common endocrine disorder characterized by excessive secretion of parathyroid hormone (PTH), leading to elevated calcium levels in the blood. The mainstay of treatment for symptomatic or significant cases is surgical removal of the overactive parathyroid gland(s), a procedure known as parathyroidectomy. In this article, we explore the presentation, underlying pathology, diagnostic investigations, surgical options, and the importance of experienced surgeons like Dr. John Chaplin in achieving successful outcomes.

What Are the Symptoms of Primary Hyperparathyroidism?

Patients with PHPT may present with a variety of symptoms, although some cases are detected incidentally through routine blood tests. Common presentations include:

- Fatigue and general malaise

- Bone pain or osteoporosis

- Kidney stones

- Abdominal pain

- Neuropsychiatric symptoms such as depression or confusion

- Peptic ulcers or gastrointestinal disturbances

Pathology Underlying PHPT

The majority of cases are caused by a benign overgrowth of parathyroid tissue. The common pathological types include:

- Single Parathyroid Adenoma (>80%): The most frequent cause, where a solitary gland develops a benign tumour.

- Double Adenomas (3-4%): Two glands develop adenomas simultaneously.

- Parathyroid Hyperplasia (~15%): All four glands are enlarged due to hyperplasia, often seen in both sporadic and familial cases.

- Parathyroid Carcinoma (<1%: A rare malignant tumour presenting with more aggressive features and higher calcium levels.

Genetic and Familial Causes

While most PHPT cases are sporadic, familial syndromes such as Multiple Endocrine Neoplasia types 1 and 2 (MEN1 and MEN2) account for about 5-10% of cases. These syndromes often involve multiple gland disease and carry a genetic predisposition, making early diagnosis and management crucial.

Diagnostic Investigations

Accurate diagnosis begins with biochemical tests:

- Serum Calcium and Parathyroid Hormone (PTH) Levels: Elevated calcium with high or inappropriately normal PTH confirms the diagnosis.

- 24-Hour Urinary Calcium Excretion and Calcium/Creatinine ratio: Helps differentiate between familial hypocalciuric hypercalcemia and PHPT.

- Bone Density Scans: To assess osteoporosis or osteopenia.

Imaging Studies for localisation:

- Technetium-99m Sestamibi Scan: A highly sensitive nuclear medicine scan to localize overactive glands.

- Ultrasound of the Neck: To identify enlarged parathyroid glands.

- Additional Imaging (e.g., 4D-CT, MRI) may be used in complex cases.

Surgical Management: Parathyroidectomy

Surgery remains the definitive treatment. The goals are to remove the overactive gland(s) while preserving normal parathyroid tissue. The extent of surgery depends on preoperative localization and intraoperative findings:

Minimally invasive parathyroidectomy: Preferred for localized disease, with smaller incisions and quicker recovery.

Bilateral neck exploration: Recommended in cases of multigland disease or when localization fails.

Intraoperative PTH monitoring can confirm successful removal, evidenced by a rapid drop in PTH levels. This is usually done early post operatively for reasons Dr Chaplin will explain at the time of surgery.

Why Choose a High-Volume Surgeon?

Parathyroid surgery is technically demanding; success rates and complication rates are significantly better when performed by high-volume, experienced surgeons. Dr. John Chaplin is renowned for his expertise in endocrine surgery, including parathyroidectomy. His experience ensures precise localisation, meticulous surgical technique, and optimal outcomes, reducing the risk of persistent or recurrent hyperparathyroidism.

Conclusion

Effective management of primary hyperparathyroidism hinges on accurate diagnosis and expert surgical intervention. High-volume surgeons like Dr. John Chaplin are best equipped to deliver safe, successful surgeries, leading to symptom relief and correction of metabolic disturbances. If you suspect you have PHPT or have abnormal blood tests, consult an experienced endocrine surgeon to discuss the most appropriate treatment options.

References

1. Bilezikian JP, Brandi ML, Eastell R, et al. Guidelines for the management of asymptomatic primary hyperparathyroidism: summary statement from the Fourth International Workshop. J Clin Endocrinol Metab. 2014;99(10):3561-3569.

2. Singh Ospina NM, Melton LJ 3rd, Strasberg L, et al. The epidemiology of primary hyperparathyroidism in a community-based cohort. J Bone Miner Res. 2017;32(12):2288-2295.

3. Wilhelm SM, Wang TS, Ruan DT, et al.

The American Association of Endocrine Surgeons guidelines for definitive management of primary hyperparathyroidism. 2025