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Objectives: The aim of this study was to evaluate the radial peripapillary capillary (RPC) and the optic nerve head (ONH) perfusion of patients with acromegaly using optical coherence tomography angiography (OCTA).
Methods: Twenty-four eyes of 24 acromegaly patients comprised the study group and 24 eyes of 24 healthy individuals were used as a control group. The ONH and RPC vascular density (VD) was measured for each patient using OCTA. The insulin-like growth factor 1 (IGF-1) levels were also recorded and compared.
Results: The VD of the inferior nasal ONH and nasal RPC was significantly lower in the acromegaly group than in the control group (p=0.047 and p=0.001, respectively). There was a significant negative correlation between the VD of the superior nasal ONH and the IGF-1 level (r=-0.283, p=0.038).
Conclusion: The ONH and RPC VD values measured using OCTA were segmentally different in the acromegaly group compared with those of the control group. This method of non-invasive quantitative analysis of retinal perfusion using OCTA may be useful for future studies involving patients with acromegaly.
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http://dx.doi.org/10.14744/bej.2021.48343 | DOI Listing |
Endocr Connect
September 2025
Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Objective: Characterize disease-specific mortality rates in patients with acromegaly on pegvisomant and identify pertinent risk factors, including on-therapy insulin-like growth factor I (IGF-I) levels.
Design: Retrospective cohort analysis of ACROSTUDY, a global surveillance study of patients with acromegaly receiving pegvisomant.
Methods: Cumulative incidence function to estimate disease-specific mortality and regression analyses to characterize risk factors.
J Diabetes Metab Disord
December 2025
Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Non-islet cell tumor hypoglycemia (NICTH) is a rare paraneoplastic syndrome resulting from excessive secretion of pro-insulin-like growth factor 2 (proIGF-2). This leads to hypoinsulinemic hypoglycemia and, in some cases, acromegaly. We report the case of a 52-year-old woman with NICTH syndrome who had decreased levels of insulin-like growth factor 1 (IGF1), insulin, C-peptide, and growth hormone (GH).
View Article and Find Full Text PDFPituitary
September 2025
Facoltà Di Medicina E Chirurgia, Università Cattolica del Sacro Cuore, Rome, Italy.
Introduction: Pituitary adenomas (PAs) are generally benign neoplasms, though in rare cases may exhibit aggressive behavior. In 2024, the PANOMEN-3 workshop released a new clinical-pathological classification. The objective of this study was to examine the potential of the PANOMEN-3 classification to predict prognosis of PAs and guide treatment in our single center cohort of patients with PAs.
View Article and Find Full Text PDFJCEM Case Rep
October 2025
Pituitary Tumor Unit, Neurosurgery Department, Hospital CUF Descobertas, 1998-018 Lisbon, Portugal.
Endokrynol Pol
September 2025
Department of Internal Medicine, Division of Endocrinology and Metabolism, Necmettin Erbakan University Faculty of Medicine, Konya, Türkiye.
Introduction: The objective was to assess the triglyceride-glucose (TyG) index and the homeostatic model assessment for insulin resistance (HOMA-IR) in the evaluation of insulin resistance in patients with acromegaly and to compare results with healthy controls.
Material And Methods: A retrospective case-control study was conducted at the Department of Endocrinology, Necmettin Erbakan University, Meram Faculty of Medicine. The study included 50 acromegalic patients and 50 age- and sex-matched healthy controls.