Predicting Tumor Volume in Primary Hyperparathyroidism From Preoperative Clinical Data

Area of Science:

• Endocrinology
• Surgical Oncology
• Medical Diagnostics

Background:

• Primary hyperparathyroidism (PHPT) is a common endocrine disorder often requiring surgical intervention.
• The relationship between preoperative clinical data and the size of the parathyroid lesion in PHPT is not fully understood.
• Accurate assessment of lesion size can inform surgical strategy and patient management.

Purpose of the Study:

• To predict the tumor volume of the lesion causing PHPT using preoperative clinical data.
• To identify key clinical factors that correlate with parathyroid adenoma size.
• To establish a predictive model for parathyroid tumor volume.

Main Methods:

• Retrospective analysis of patients surgically treated for PHPT between January 2000 and December 2021.
• Parathyroid gland volume (lesion size) was the primary outcome measure.
• Multivariable analysis was employed to assess associations between preoperative clinical data and tumor volume.

Main Results:

• A significant positive correlation was found between parathyroid tumor volume and preoperative intact parathyroid hormone (PTH) levels (r=0.503) and calcium levels (r=0.338).
• Multivariable regression identified male sex, log-transformed PTH (ln-PTH), and calcium as significant predictors of log-transformed tumor volume (ln-volume).
• The predictive model (adjusted R2=0.320) highlights the utility of PTH and calcium in estimating tumor size.

Conclusions:

• Preoperative intact PTH levels are a significant predictor of tumor volume in PHPT.
• Estimating parathyroid lesion size preoperatively can guide further imaging and surgical planning.
• This study provides valuable insights for optimizing the management of PHPT patients.