Serum parathyroid hormone and calcium during the first days after resection of a parathyroid adenoma

F Debruyne1, F Ostyn, P Delaere

  • 1Neus-, Keel- en Oorziekten, Gelaat- en Halschirurgie, U.Z. Leuven.

Acta Clinica Belgica
|December 23, 1998
PubMed

Insights

Post-parathyroid adenoma removal, parathyroid hormone (PTH) levels drop significantly on day one, indicating the best time for intervention assessment. Hypocalcemia is most common on day three, with most patients normalizing calcium levels within ten days.

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Neurosurgery

Background:

  • Solitary parathyroid adenoma removal is a common surgical procedure.
  • Monitoring serum calcium, phosphate, and parathyroid hormone (PTH) is crucial post-surgery.
  • Understanding the dynamic changes in these levels aids in patient management.

Purpose of the Study:

  • To determine the optimal timing for assessing the effectiveness of parathyroid adenoma removal.
  • To characterize the temporal patterns of serum calcium, phosphate, and PTH following surgery.
  • To provide data to guide postoperative management strategies.

Main Methods:

  • Daily monitoring of serum parathyroid hormone (PTH), calcium, and phosphate levels.
  • Study included patients undergoing solitary parathyroid adenoma resection.
  • Data collected during the early postoperative period.

Main Results:

  • Serum PTH concentrations decreased to very low levels on the first postoperative day.
  • A rapid recovery of PTH levels was observed thereafter.
  • Hypocalcemia was most prevalent on the third postoperative day.
  • Within ten days, 26 patients normalized serum calcium, while 4 experienced mild hypocalcemia.

Conclusions:

  • The first postoperative day is optimal for evaluating the success of parathyroid adenoma removal based on PTH levels.
  • Postoperative hypocalcemia typically resolves within ten days, but monitoring is essential.
  • These findings can inform clinical decision-making and patient care protocols.

Related Concept Videos

Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
The Parathyroid Glands00:59

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...