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Pituitary

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https://www.readbyqxmd.com/read/28712073/association-between-ace-and-agt-polymorphism-and-cardiovascular-risk-in-acromegalic-patients
#1
Tomris Erbas, Nese Cinar, Selcuk Dagdelen, Arzu Gedik, Hikmet Yorgun, Ugur Canpolat, Giray Kabakci, Mehmet Alikasifoglu
PURPOSE: Whether the renin-angiotensin-aldosterone system plays a role or not in the development of cardiovascular morbidity in acromegaly patients is unknown. The aim of the study was to investigate the association between ACE (I/D) and AGT (M235T) gene polymorphisms and cardiovascular and metabolic disorders in the acromegaly. METHODS: The study included one hundred and seventeen acromegalic patients (62 F/55 M, age: 50.2 ± 12.3 years) and 106 healthy controls (92 F/14 M, age: 41...
July 15, 2017: Pituitary
https://www.readbyqxmd.com/read/28710724/best-candidates-for-dopamine-agonist-withdrawal-in-patients-with-prolactinomas
#2
Myoung Jin Ji, Jung Hee Kim, Ji Hyun Lee, Jung Hyun Lee, Yong Hwy Kim, Sun Ha Paek, Chan Soo Shin, Seong Yeon Kim
PURPOSE: Dopamine agonist (DA) therapy is recommended as the first-line treatment for prolactinomas. However, it requires long treatment duration, and a high recurrence rate after DA withdrawal has been reported. We aimed to elucidate the predictors for long-term remission following DA withdrawal and propose the best candidates who can achieve complete remission after DA withdrawal. METHODS: In a retrospective cohort study, we included 89 patients with prolactinoma who have withdrawn DAs with normal prolactin (PRL) levels at Seoul National University Hospital, from 2000 to 2016...
July 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28689230/the-extended-transnasal-transsphenoidal-approach-for-anterior-skull-base-meningioma-considerations-in-patient-selection
#3
Joseph P Castlen, David J Cote, Hasan A Zaidi, Edward R Laws
PURPOSE: In this study, we set out to define our institutional criteria for patient eligibility for transsphenoidal resection of parasellar meningiomas, and to report our experience with extended transnasal approaches for these lesions. We aimed to discuss the important considerations of patient selection and risk stratification to optimize outcomes for patients with these difficult lesions, and also include considerations that should be reviewed during surgical approach selection. METHODS: Medical records from Brigham and Women's Hospital were retrospectively reviewed for all patients who underwent transsphenoidal surgery for pituitary disease with the senior author from April 2008 to March 2017 (938 procedures)...
July 8, 2017: Pituitary
https://www.readbyqxmd.com/read/28681103/erratum-to-acromegaly-surgical-results-in-548-patients
#4
Cecilia Fernández Mateos, Maria García-Uria, Tomás Lucas Morante, José García-Uria
No abstract text is available yet for this article.
July 5, 2017: Pituitary
https://www.readbyqxmd.com/read/28676954/ovarian-hyperstimulation-syndrome-due-to-follicle-stimulating-hormone-secreting-pituitary-adenomas
#5
Amelia Caretto, Roberto Lanzi, Cecilia Piani, Michela Molgora, Pietro Mortini, Marco Losa
PURPOSE: Gonadotroph adenomas are pituitary adenomas with inefficient and variable secretory characteristics, that is why they are usually considered as a subgroup of nonfunctioning pituitary adenomas (NFPA) and are recognized only at immunohistochemistry. When gonadotroph adenomas secrete active hormones, they may cause spontaneous ovarian hyperstimulation syndrome (OHSS) in premenopausal women. Aim of our study is to describe three women with OHSS diagnosed before the removal of the adenoma and to calculate the prevalence of OHSS in premenopausal women with a clinical diagnosis of NFPA...
July 4, 2017: Pituitary
https://www.readbyqxmd.com/read/28643208/visual-outcomes-after-endoscopic-endonasal-pituitary-adenoma-resection-a-systematic-review-and-meta-analysis
#6
REVIEW
Ivo S Muskens, Amir H Zamanipoor Najafabadi, Vanessa Briceno, Nayan Lamba, Joeky T Senders, Wouter R van Furth, Marco J T Verstegen, Timothy R S Smith, Rania A Mekary, Christine A E Eenhorst, Marike L D Broekman
PURPOSE: Patients with pituitary adenomas often present with visual deficits. While the aim of endoscopic endonasal transsphenoidal surgery (EETS) is to improve these deficits, permanent worsening is a possible outcome. The aim of this meta-analysis was to evaluate the effect of EETS for pituitary adenomas on visual outcomes. METHODS: A meta-analysis was conducted according to the PRISMA guidelines. Pooled prevalence was calculated for complete recovery, improvement, and deterioration of visual field deficits, visual acuity and unspecified visual function in fixed- and random-effect models, including assessment of heterogeneity (I(2)) and publication bias (Begg's test)...
June 22, 2017: Pituitary
https://www.readbyqxmd.com/read/28616673/contribution-of-sellar-dura-integrity-to-symptom-manifestation-in-pituitary-adenomas-with-intratumoral-hemorrhage
#7
Yasuhiko Hayashi, Yasuo Sasagawa, Daisuke Kita, Issei Fukui, Masahiro Oishi, Osamu Tachibana, Fumiaki Ueda, Mitsutoshi Nakada
PURPOSE: Although hemorrhage within pituitary adenomas frequently exacerbates the symptoms, there are many grades of severity. Moreover, the contributing factors for symptom severity are still controversial. METHODS: This retrospective study included 82 patients who underwent transsphenoidal surgery for pituitary adenomas with intratumoral hemorrhage. The grades of preoperative symptoms were classified into group A, asymptomatic or minor symptoms; group B, moderate symptoms sufficient for complain; and group C, severe symptoms disturbing daily life...
June 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28593555/genetic-analysis-of-irf6-a-gene-involved-in-craniofacial-midline-formation-in-relation-to-pituitary-and-facial-morphology-of-patients-with-idiopathic-growth-hormone-deficiency
#8
Eline Starink, Anita C S Hokken-Koelega, Theo J Visser, Janneke Baan, Robin P Peeters, Laura C G de Graaff
INTRODUCTION: Growth hormone is secreted by the pituitary gland, which forms part of the craniofacial midline. IRF6 encodes a transcription factor involved in the development of the craniofacial midline and mutations in IRF6 are known to disturb craniofacial development. Craniofacial and pituitary development are closely related. After whole exome sequencing revealed a new mutation in IRF6 in a family with Idiopathic Growth Hormone Deficiency (IGHD), we screened the remainder of our IGHD cohort for mutations in this gene and related their genotypes to pituitary and craniofacial morphology...
June 7, 2017: Pituitary
https://www.readbyqxmd.com/read/28589294/acromegaly-surgical-results-in-548-patients
#9
REVIEW
Cecilia Fernández Mateos, Maria García-Uria, Tomás Lucas Morante, José García-Uría
PURPOSE: The goal of this study was to quantified the results of microsurgery, in all the patients with acromegaly treated by the same endocrinologist and the same surgeon between 1975 and 2015. METHODS: A series of 548 patients with acromegaly were operated and followed-up from 6 months to 40 years. Patients were selected according to five criteria: (1) Operated by the same surgeon. (2) No previous treatment. (3) Complete endocrinological preoperative studies including GH, OGTT, IGF-I, PRL test and TC/MRI...
June 6, 2017: Pituitary
https://www.readbyqxmd.com/read/28589293/impairment-of-osmotic-challenge-induced-neurohypophyseal-hormones-secretion-in-sepsis-survivor-rats
#10
Nilton Nascimento Santos-Junior, Luís Henrique Angenendt Costa, Carlos Henrique Rocha Catalão, Alexandre Kanashiro, Tarek Sharshar, Maria José Alves Rocha
BACKGROUND/PURPOSE: Recent studies have reported that sepsis survivors show impaired central nervous system functions. The osmoregulation in this post-sepsis condition has not been well investigated. In the present study, we evaluated the secretion of neurohypophyseal hormones, arginine vasopressin (AVP) and oxytocin (OT), and water intake induced by osmotic challenge in survivor rats. METHODS: Wistar rats were submitted to sepsis by cecal ligation and puncture (CLP)...
June 6, 2017: Pituitary
https://www.readbyqxmd.com/read/28540626/cross-sectional-prevalence-of-pancreatic-cystic-lesions-in-patients-with-acromegaly-a-single-center-experience
#11
Yukiko Odake, Hidenori Fukuoka, Masaaki Yamamoto, Yoshifumi Arisaka, Junya Konishi, Kenichi Yoshida, Ryusaku Matsumoto, Hironori Bando, Kentaro Suda, Hitoshi Nishizawa, Genzo Iguchi, Shozo Yamada, Wataru Ogawa, Yutaka Takahashi
PURPOSE: Acromegaly is a disease associated with an increased risk for several kinds of neoplasms including colon and thyroid cancer. Although the association between acromegaly and pancreatic neoplasms has not been elucidated, it has recently been reported that GNAS gene mutations were found in 58% of intraductal papillary mucinous neoplasms (IPMNs), which are representative pancreatic cystic lesions, suggesting a link between IPMNs and acromegaly. To assess the prevalence of pancreatic cystic lesions in patients with acromegaly, we performed a retrospective cross-sectional single institute study...
May 24, 2017: Pituitary
https://www.readbyqxmd.com/read/28540625/pituitary-dysfunction-in-granulomatosis-with-polyangiitis
#12
REVIEW
Daniela Esposito, Penelope Trimpou, Dario Giugliano, Mats Dehlin, Oskar Ragnarsson
PURPOSE: Granulomatosis with polyangiitis (GPA) is a multisystem disease, characterized by necrotizing small-vessel vasculitis, which mainly affects the respiratory tract and the kidneys. Pituitary involvement in GPA is rare, present in about 1% of all cases of GPA. To date, only case reports or small case series have been published. Herein we report clinical features, imaging findings, treatment and outcomes in three patients with GPA-related pituitary dysfunction (PD). METHODS: A retrospective analysis of three cases of GPA-related PD was conducted, followed by systematic review of the English medical literature using PubMed...
May 24, 2017: Pituitary
https://www.readbyqxmd.com/read/28528397/perioperative-hypothalamic-pituitary-adrenal-function-in-patients-with-silent-corticotroph-adenomas
#13
Abdelle F Cheres, Nadine ElAsmar, Aman Rajpal, Warren R Selman, Baha M Arafah
BACKGROUND: Silent corticotroph adenomas (SCAs) are characterized by strong ACTH immunostaining without clinical manifestations of hypercortisolism. Patients with SCAs often present with mechanical symptoms related to tumor growth. This study investigates the hypothalamic pituitary adrenal axis (HPA) characteristics after adenomectomy in patients with SCAs. METHODS: Biochemical parameters of HPA function were monitored frequently after surgical resection of non-functioning macroadenomas...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28526958/-ectopic-suprasellar-type-iia-prl-secreting-pituitary-adenoma
#14
REVIEW
Heng-Jun Zhou, De-Sheng Pan, Xiao-Qun Ba, Ren-Ya Zhan, Xiu-Jue Zheng, Yue-Hui Ma
BACKGROUND: Ectopic pituitary adenomas (EPAs) are rare, and the suprasellar cistern seems to be the most common location. At this time, no detailed original classification, diagnosis, or treatment protocols for suprasellar pituitary adenomas (SPAs) have been described. CASE DESCRIPTION: A 19-year-old man showed visual disturbances and lack of libido for 3 years, he suffered a sharp decline in vision with only light perception in the last week. Magnetic resonance imaging scans revealed a large suprasellar cystic lesion with a normal pituitary in the sella turcica...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28523537/prolactinoma-management-predictors-of-remission-and-recurrence-after-dopamine-agonists-withdrawal
#15
Margarida Teixeira, Pedro Souteiro, Davide Carvalho
OBJECTIVE: Prolactinomas are the most common functional pituitary tumour. Dopamine agonists (DA) are its principal treatment. The criteria that should guide therapy withdrawal and the factors that influence disease remission or relapse are not yet fully established. Our purpose is to evaluate the proportion of patients who attempted DA withdrawal, and to identify the factors that influence clinicians to try it. In addition, we aim to study the factors that are involved in prolactinoma remission/relapse after therapy withdrawal...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28275992/follow-up-intervals-in-patients-with-cushing-s-disease-recommendations-from-a-panel-of-experienced-pituitary-clinicians
#16
Eliza B Geer, Alejandro Ayala, Vivien Bonert, John D Carmichael, Murray B Gordon, Laurence Katznelson, Ekaterina Manuylova, Ismat Shafiq, Vijaya Surampudi, Ronald S Swerdloff, Michael S Broder, Dasha Cherepanov, Marianne Eagan, Jackie Lee, Qayyim Said, Maureen P Neary, Beverly M K Biller
PURPOSE: Follow-up guidelines are needed to assess quality of care and to ensure best long-term outcomes for patients with Cushing's disease (CD). The purpose of this study was to assess agreement by experts on recommended follow-up intervals for CD patients at different phases in their treatment course. METHODS: The RAND/UCLA modified Delphi process was used to assess expert consensus. Eleven clinicians who regularly manage CD patients rated 79 hypothetical patient scenarios before and after ("second round") an in-person panel discussion to clarify definitions...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28265842/jean-camus-and-gustave-roussy-pioneering-french-researchers-on-the-endocrine-functions-of-the-hypothalamus
#17
Inés Castro-Dufourny, Rodrigo Carrasco, Ruth Prieto, José M Pascual
At the beginning of the twentieth century, the hypothalamus was known merely as an anatomical region of the brain lying beneath the thalamus. An increasing number of clinicopathological reports had shown the association of diabetes insipidus and adiposogenital dystrophy (Babinski-Fröhlich's syndrome), with pituitary tumors involving the infundibulum and tuber cinereum, two structures of the basal hypothalamus. The French physicians Jean Camus (1872-1924) and Gustave Roussy (1874-1948) were the first authors to undertake systematic, controlled observations of the effects of localized injuries to the basal hypothalamus in dogs and cats by pricking the infundibulo-tuberal region (ITR) with a heated needle...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28265841/surgical-outcomes-in-patients-with-cushing-s-disease-the-cleveland-clinic-experience
#18
Philip C Johnston, Laurence Kennedy, Amir H Hamrahian, Zahrae Sandouk, James Bena, Betul Hatipoglu, Robert J Weil
CONTEXT: Transsphenoidal surgery (TSS) to resect a pituitary adenoma is considered first-line treatment for patients with Cushing's disease (CD). Early, post-operative remission rates >80% are expected for patients with a microadenoma (≤ 10 mm) visible on magnetic resonance (MR) imaging. OBJECTIVE: To report surgical outcomes and predictors of remission in a specialist center for patients with CD. PATIENTS AND METHODS: Clinical data was obtained from a prospective CD database in addition to review of all electronic medical, laboratory and surgical patient records...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28233140/clinical-characteristics-of-acromegalic-patients-with-empty-sella-and-their-outcomes-following-transsphenoidal-surgery
#19
Yasuo Sasagawa, Yasuhiko Hayashi, Osamu Tachibana, Masahiro Oishi, Issei Fukui, Hideaki Iizuka, Mitsutoshi Nakada
PURPOSE: To analyze the clinical characteristics of acromegalic patients with empty sella (ES, herniation of the subarachnoid space within the sella turcica) and the impact of ES on transsphenoidal surgery in such patients. METHODS: Seventy-eight patients, newly diagnosed with acromegaly who underwent transsphenoidal surgery were included. ES was defined as the pituitary gland and adenoma occupying less than 50% of the sella turcica on midsagittal magnetic resonance (MR) imaging...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28210909/the-longest-stalk-preserved-pituitary-function-after-regression-of-a-giant-prolactinoma
#20
LETTER
Jessica A Lundgren, Edward H Oldfield, John C Marshall
No abstract text is available yet for this article.
August 2017: Pituitary
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