Publications by authors named "Catherine D Zhang"

Objective: Benign adrenocortical adenomas are frequently diagnosed on cross-sectional imaging performed for unrelated reasons. Up to 15% to 20% of adrenal nodules are bilateral, representing bilateral adenomas or primary bilateral macronodular adrenal hyperplasia.

Methods: Mild autonomous cortisol secretion (MACS), diagnosed based on an abnormal dexamethasone suppression test, is seen in 19% to 44% of patients with adrenal adenomas.

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Objective: Glucocorticoid withdrawal syndrome (GWS) may develop in patients following successful surgery for endogenous hypercortisolism. Effective strategies to minimize GWS and improve quality of life (QoL) are currently lacking. We aimed to determine the impact of hydrocortisone vs prednisone therapy on GWS and QoL during the first 12 weeks postsurgery.

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Traumatic brain injury (TBI) is a global health problem with rising incidence. In many patients, pituitary hormone deficiencies after TBI are transient; however, in some cases, they can persist or develop in the chronic phase. Post-traumatic hypopituitarism has a variable clinical course, reflecting its complex pathophysiology and incompletely understood risk factors.

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Objectives: The impact of mild autonomous cortisol secretion (MACS) on cognition is incompletely characterized. We aimed to assess cognition in patients with MACS, identify factors associated with lower cognition, and determine the impact of adrenalectomy on cognition.

Methods: We conducted a cross-sectional study (4/2019 to 10/2022) and a longitudinal cohort study (10/2021 to 9/2023) of adults with MACS and referent subjects.

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Prolactinomas are a common cause of infertility in women. Medical treatment with dopamine agonists (DAs) has an excellent efficacy at restoring fertility and a reassuring safety profile in early pregnancy. Surgical treatment before conception is required in some cases of large macroadenomas and incomplete treatment response.

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Background: Secondary adrenal insufficiency (SAI) may occur in patients after unilateral adrenalectomy for adrenal-dependent hypercortisolism (HC) or primary aldosteronism (PA). This study aimed to assess whether postoperative day (POD) 1 basal cortisol was predictive of an abnormal cosyntropin stimulation test (CST) result and the need for glucocorticoid replacement (GR).

Methods: A retrospective review of consecutive patients who underwent unilateral adrenalectomy for HC, PA, or both between September 2014 and September 2022 was performed.

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Context: Mild autonomous cortisol secretion (MACS) is diagnosed based on postdexamethasone cortisol >1.8 µg/dL. Scarce evidence exists on steroid circadian secretion and steroid metabolome in MACS.

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Article Synopsis
  • This study examines the link between clinical and imaging features with hormonal subtypes, growth, and surgical treatment of incidental adrenal cortical adenomas (ACAs) in a cohort of patients from 2000 to 2016.
  • Out of 1516 patients, various hormonal subtypes were identified, with factors like age, sex, and tumor size influencing these subtypes, while imaging measures like Hounsfield units (HU) were not significant predictors.
  • The findings indicate younger age, larger tumor size, and increased growth were associated with a higher likelihood of needing adrenalectomy, especially for patients with mild autonomous cortisol secretion (MACS) and nonfunctioning adenomas (NFAs).
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Glucocorticoid withdrawal syndrome is a challenging clinical phenomenon that can complicate the postsurgical recovery of Cushing syndrome. It is characterized by physical tolerance and dependence to supraphysiologic glucocorticoid exposure during active Cushing syndrome followed by the abrupt decline in cortisol levels after surgical treatment. The symptoms of glucocorticoid withdrawal often overlap with those of postoperative adrenal insufficiency and can be difficult for patients to cope with and for clinicians to treat.

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Adrenal insufficiency is a common and potentially life-threatening endocrine disorder that can be drug induced or endogenous and of adrenal (primary) or pituitary/hypothalamic (secondary/tertiary) origin. Of particular concern in drug-induced disease is the patient with glucocorticoid- or opioid-induced adrenal insufficiency. Adrenal insufficiency of any cause is typically diagnosed biochemically with a subnormal morning serum cortisol (the circadian, awakening peak) and serum dehydroepiandrosterone sulfate, followed by or simultaneously with an assessment of the acute (30 and 60 minutes) serum cortisol response to injected synthetic corticotropin (ACTH), if clinically indicated.

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Objective: Adrenal adenomas are commonly encountered in clinical practice. To date, population-based data on their impact on cognition, mental health, and sleep are lacking. We aimed to study possible associations between adrenal adenomas and dementia, psychiatric or sleep disorders.

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Article Synopsis
  • The study aimed to determine the prevalence of frailty in patients with different adrenal disorders and assess its association with physical function measures using the Frailty Index (FI).
  • It involved 520 patients with adrenal issues and 89 referent subjects who completed a questionnaire measuring various health variables, with frailty defined as an FI score of 0.25 or higher.
  • Results showed a significantly higher prevalence of frailty in adrenal disorder patients, particularly those with Cushing syndrome, and the FI correlated with various physical function tests, indicating the need for future studies on management strategies for frailty.
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Objective: Glucocorticoid withdrawal syndrome (GWS) is a scarcely studied phenomenon that complicates the recovery following surgical remission of hypercortisolism. We aimed to characterize the presence and trajectory of glucocorticoid withdrawal symptoms in the postoperative period and to determine presurgical predictors of GWS severity.

Design: Longitudinal observational study.

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Objective: Prospective data on determinants of muscle strength impairment and quality of life in patients with various subtypes and severity of endogenous hypercortisolism are lacking.

Design: Single-center cross-sectional study, 2019 to 2022.

Methods: Patients with Cushing syndrome (CS) and mild autonomous cortisol secretion (MACS) were assessed with clinical and biochemical severity scores, muscle function (nondominant hand grip strength and sit-to-stand test), and quality of life (Short Form-36 [SF36] and CushingQoL).

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Background: Accumulating evidence suggests that primary aldosteronism (PA) is associated with several features of the metabolic syndrome, in particular with obesity, type 2 diabetes mellitus, and dyslipidemia. Whether these manifestations are primarily linked to aldosterone-producing adenoma (APA) or bilateral idiopathic hyperaldosteronism (IHA) remains unclear. The aim of the present study was to investigate differences in metabolic parameters between APA and IHA patients and to assess the impact of treatment on these clinical characteristics.

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Background: Benign adrenal tumors are commonly discovered on cross-sectional imaging. Mild autonomous cortisol secretion (MACS) is regularly diagnosed, but its effect on cardiometabolic disease in affected persons is ill defined.

Objective: To determine cardiometabolic disease burden and steroid excretion in persons with benign adrenal tumors with and without MACS.

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Article Synopsis
  • Autonomous cortisol secretion (ACS) occurs in up to 50% of patients with adrenal adenomas, and clinical guidelines suggest measuring serum DHEA-S and ACTH levels for diagnosis.
  • A study analyzed 468 adults with adrenal adenomas from 2000 to 2020, finding that lower levels of DHEA-S and ACTH correlated with ACS diagnosis.
  • The combination of DHEA-S <40 mcg/dL and ACTH <10 pg/mL offered the best accuracy for diagnosing ACS, achieving 92% specificity and 87% positive predictive value (PPV).
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Context: While adrenal adenomas have been linked with cardiovascular morbidity in convenience samples of patients from specialized referral centers, large-scale population-based data are lacking.

Objective: To determine the prevalence and incidence of cardiometabolic disease and assess mortality in a population-based cohort of patients with adrenal adenomas.

Design: Population-based cohort study.

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Objective: Several small studies reported increased prevalence and incidence of asymptomatic vertebral fractures in patients with non-functioning adrenal adenomas and adenomas with mild autonomous cortisol secretion. However, the risk of symptomatic fractures at vertebrae, and at other sites remains unknown. Our objective was to determine the prevalence and incidence of symptomatic site-specific fractures in patients with adrenal adenomas.

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Carney complex (CNC) is a rare multiple neoplasia syndrome characterized by spotty pigmentation of the skin and mucosa in association with various non-endocrine and endocrine tumors, including primary pigmented nodular adrenocortical disease (PPNAD). A 20-year-old woman was referred for suspected Cushing syndrome. She had signs of cortisol excess as well as skin lentigines on physical examination.

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The widespread use of cross-sectioning abdominal imaging in recent years has led to the increased detection of adrenal masses. In each case, determining whether a newly identified adrenal mass is benign or malignant is essential for management, but can be challenging. A significant proportion of adrenal lesions remain indeterminate after initial evaluation due to limitations of current imaging modalities.

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Objective: While the left adrenal gland is readily accessible via endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA), data regarding the utility of EUS-FNA in the diagnosis of adrenal lesions remain limited. We aimed to ( 1) describe the clinical context, adverse event rate, and diagnostic performance of EUS-FNA, and ( 2) compare the safety profile and diagnostic accuracy of EUS-FNA with percutaneous adrenal biopsy.

Methods: Single-center, retrospective cohort study.

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