Publications by authors named "Jessica Brzana"

Purpose: To compare hypothalamus-pituitary-adrenal (HPA) axis integrity at diagnosis and recovery after transsphenoidal surgery (TSS), in acromegaly patients, compared with tumor size matched non-functioning adenoma (NFA) patients.

Methods: A retrospective 7-year evaluation of acromegaly patients, who underwent TSS with 52 weeks follow-up at a single institution, was undertaken. 50 acromegaly with complete follow-up data at all points and 50 NFA patients were matched for tumor size; HPA axis was similarly assessed pre-operatively and at 6, 12 and 52 weeks post-operatively.

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Article Synopsis
  • The study reviews the surgical outcomes and factors influencing remission in acromegaly patients who had microscopic transsphenoidal surgery for a growth hormone-secreting adenoma over a 6-year period.
  • Among the 70 patients, the overall remission rate was 52.5%, with higher success rates for smaller tumors (microadenomas) compared to larger ones (macroadenomas).
  • Key predictors of remission included younger age, smaller tumor size, and lower hormonal levels before surgery, while repeat surgeries were linked to lower remission rates.
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Objective: To retrospectively review institutional records of female patients of reproductive age with Cushing's disease (CD) and determine if and how many had been previously diagnosed as having solely polycystic ovarian syndrome (PCOS). To determine whether clinical patterns might be useful in identifying appropriate candidates for hypercortisolism screening in women suspected of PCOS.

Study Design: The study included 50 patients with pathologically proven CD at Oregon Health & Science University, Northwest Pituitary Center between 2006 and 2011.

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Cushing's disease (CD) is a disorder in which chronic excess adrenocorticotropic hormone production is associated with multiple comorbidities and diminished quality of life. Postsurgical monitoring is important, and newer therapies are available for the management of surgical failure or disease recurrence. In this clinical case, we illustrate the importance of the nursing role in long-term management of CD, particularly as nurses may be the first point of contact for patients with CD.

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Postoperative serum cortisol is used as an indicator of Cushing's disease (CD) remission following transsphenoidal surgery (TSS) and guides (controversially) the need for immediate adjuvant treatment for CD. We investigated postoperative cortisol and adrenocorticotropic hormone (ACTH) levels as predictors of remission/recurrence in CD in a large retrospective cohort of patients with pathologically confirmed CD, over 6 years at a single institution. Midnight and morning cortisol, and ACTH at 24-48 h postoperatively (>24 h after last hydrocortisone dose) were measured.

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Acromegaly is associated with serious morbidity and mortality, if not well controlled. Approved somatostatin receptor ligands (SRLs) are a mainstay of medical therapy and exhibit preferential affinity for somatostatin receptor (SSTR) subtype 2. Our objective was to assess whether characteristic features of individual growth hormone (GH)-secreting adenomas at diagnosis, correlated with SRL sensitivity, using defined tumor markers.

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Article Synopsis
  • The study evaluates the effectiveness of insulin-like growth factor-1 (IGF-1) as a diagnostic biomarker for acromegaly, comparing it against the oral glucose tolerance test (OGTT).
  • Analyzed data from 101 patients with confirmed acromegaly and over 149 control subjects revealed significantly higher IGF-1 levels in acromegaly patients, indicating its strong correlation with the disease.
  • The findings suggest that elevated IGF-1 is often sufficient for diagnosing acromegaly, especially in cases where OGTT results are inconclusive.
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New criteria that define acromegaly remission are more stringent: normal (age/sex-adjusted) insulin-like growth factor type 1 (IGF-1), growth hormone (GH) random (GHr) <1 μg/L, and a GH nadir (GHn) during oral glucose tolerance test (OGTT) of <0.4 μg/L. Discordance between GH and IGF-1 values is often attributed to somatostatin receptor ligands (SRLs) or radiation.

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