Event - AAES

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* Adjusted for age, sex, race/ethnicity, and bisphosphonate use.

UCLA physicians presented their research at the 38th Annual Meeting of the American Association of Endocrine Surgeons.

Dr. Feibi Zheng, endocrine surgery fellow, reported a study of over 7,000 patients with primary hyperparathyroidism. Patients who had a failed parathyroidectomy had a higher risk of fractures compared to patients who had a successful parathyroidectomy.

A failed parathyroidectomy means that a patient’s calcium becomes abnormally high within 6 months of surgery. It is important for surgeons to have a high cure rate after parathyroid surgery to prevent fractures.


Medical student Matthew Hung and surgery resident Dr. James Wu described the outcomes of over 100 patients who underwent surgery for recurrent thyroid cancer at UCLA. The complication rate was very low, and almost all patients had a significant decrease in their tumor marker after reoperation.

Outcomes of over 100 patients
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However approximately one quarter of patients developed a second recurrence, highlighting the need for close surveillance following reoperation.

Patients who were treated with additional radioactive iodine (RAI) following reoperation did not seem to have better outcomes compared to patients who only had a reoperation, but this needs to be investigated in future studies.

Dr. Michael Yeh discussed challenging adrenal cases and the UCLA technique of minimally invasive adrenalectomy at the Endocrine Surgery University for fellows.

Minimally invasive adrenalectomy