Cited by 66Hormonal Regulation and HypertensionParathyroid Disorders and TreatmentsThyroid and Parathyroid Surgery

The effect of surgical treatment on secondary hyperaldosteronism and relative hyperinsulinemia in primary hyperparathyroidism

Kovacs, L, Goth, MI, Szabolcs, I, Dohan, O, Ferencz, A, Szilagyi, G·1998·European Journal of Endocrinology

Abstract

OBJECTIVE: To evaluate the renin-aldosterone system and insulin secretion in hyperparathyroidism and their effects on blood pressure regulation. DESIGN: Studies were carried out on patients with primary hyperparathyroidism (PHPT) prior to and following removal of the parathyroid tumor. METHODS: Sixteen normotensive and euglycemic patients with PHPT were studied. The following parameters were measured: basal and stimulated plasma renin activity (PRA) and aldosterone (ALD) secretion: parathormone (PTH) and serum electrolytes. Insulin and glucose levels were measured during an oral glucose tolerance test. RESULTS: Systolic but not diastolic blood pressure showed a decrease following surgery, from 123.3+/-13.0/80+/-8.6 to 116.7+/-13.5/77.3+/-8.8 mmHg. The decrease in the systolic pressure was not clinically significant. After surgery, both the basal and stimulated PRA and ALD values decreased, and the preoperative pathological values returned to normal: PRA basal: 1.79 --> 0.70 ng/ml/h, P=0.0049; PRA stimulated: 7.76 --> 1.90 ng/ml/h, P=0.0031; ALD basal: 111.5 --> 73.0 pg/ml, P=0.0258; ALD stimulated: 392.5 --> 236.0 pg/ml, P=0.0157. The postoperative decrease in the PRA correlated with the changes in PTH levels (r=0.5442, P < 0.05, n=16) but did not correlate with the changes in serum calcium concentrations. Both the fasting and stimulated insulin levels decreased after surgery but remained within the normal range: insulin fasting: 10.2 --> 5.0 mIU/l, P=0.0218; insulin area under the curve: 5555 --> 3296 mIU/l*min, P=0.0218. There was no correlation between the changes in insulin levels and PTH or ion levels. Sodium, potassium and blood glucose levels remained unaffected by parathyroid surgery. CONCLUSIONS: In a population of normotensive hyperparathyroid patients an increased activity of the renin-aldosterone system related to PTH was found and surgery resulted in a small and insignificant decrease in blood pressure. This change was accompanied by a significant decrease in the activity of the renin-aldosterone system indicating the role of the renin-aldosterone system in the regulation of blood pressure in PHPT. Both fasting and stimulated insulin values decreased following removal of the parathyroid tumor, but with no individual correlation with PTH and calcium levels.

Integrity signals

Registry

Crossref · 10.1530/eje.0.1380543

Cites

28 of 28 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Kovacs, L., Goth, M., Szabolcs, I., Dohan, O., Ferencz, A., & Szilagyi, G.
Venue
European Journal of Endocrinology
Published
1998-05-01
Volume
138
Issue
5
Pages
543-547
ISSN
  • 0804-4643 (ISSN-L)
  • 1479-683X
OpenAlex
W2147919534
Cited by
66
References
28
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2021: 3 · 2020: 5 · 2019: 2 · 2018: 2 · 2017: 4 · 2016: 2 · 2015: 5 · 2014: 5 · 2013: 4 · 2012: 6
FWCI
0.25
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
  • Health Sciences › Medicine › Nephrology › Parathyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
primary hyperparathyroidism, parathyroidectomy, secondary hyperaldosteronism, renin-aldosterone system, plasma renin activity, aldosterone, parathyroid hormone, insulin secretion, blood pressure regulation, normotensive subjects, oral glucose tolerance test, serum electrolytes, serum calcium, sodium, potassium, blood glucose, parathyroid tumors
MeSH terms
Insulin Secretion, Adolescent, Adult, Aged, Blood Pressure, Female, Humans, Hyperaldosteronism, Hyperinsulinism, Hyperparathyroidism, Insulin, Male, Middle Aged, Renin-Angiotensin System

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review