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Pituitary

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https://www.readbyqxmd.com/read/29032459/predictors-of-silent-corticotroph-adenoma-recurrence-a-large-retrospective-single-center-study-and-systematic-literature-review
#1
Fabienne Langlois, Dawn Shao Ting Lim, Chris G Yedinak, Isabelle Cetas, Shirley McCartney, Justin Cetas, Aclan Dogan, Maria Fleseriu
PURPOSE: Silent corticotroph adenomas (SCAs) are clinically silent and non-secreting, but exhibit positive adrenocorticotropic hormone (ACTH) immunostaining. We characterized a single center cohort of SCA patients, compared the SCAs to silent gonadotroph adenomas (SGAs), identified predictors of recurrence, and reviewed and compared the cohort to previously published SCAs cases. METHODS: Retrospective review of SCA and SGA surgically resected patients over 10 years and 6 years, respectively...
October 14, 2017: Pituitary
https://www.readbyqxmd.com/read/29027644/treatment-of-empty-sella-associated-with-visual-impairment-a-systematic-review-of-chiasmapexy-techniques
#2
REVIEW
Lina Raffaella Barzaghi, Carmine Antonio Donofrio, Pietro Panni, Marco Losa, Pietro Mortini
PURPOSE: Chiasmapexy is a poorly described surgical procedure adopted to correct the downward displacement of suprasellar visual system (SVS) into an empty sella (ES) causing visual worsening. The aim of our study is to define the indications for extradural and intradural chiasmapexy. METHODS: A systematic literature review has been performed on MEDLINE database (US National Library of Medicine), including only articles that depicted cases of surgically treated patients affected by ES and progressive delayed visual worsening...
October 13, 2017: Pituitary
https://www.readbyqxmd.com/read/28936751/guidelines-versus-real-life-practice-the-case-of-colonoscopy-in-acromegaly
#3
M Parolin, F Dassie, L Russo, S Mazzocut, M Ferrata, E De Carlo, R Mioni, F Fallo, R Vettor, C Martini, P Maffei
PURPOSE: The aim of this study is to investigate guideline application and colonoscopy findings in real-life practice in acromegaly. METHODS: We conducted a retrospective observational non-interventional and cross-sectional analysis on 146 patients with acromegaly (ACRO) referred to our clinic. We evaluated colonoscopy data, focusing on the correlation between colonoscopy findings and hormonal/metabolic values. RESULTS: The total number of colonoscopies performed in ACRO patients increased from 6 in the period 1990-1994 to 57 in the period 2010-2014...
September 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28916976/preoperative-risk-factors-for-postoperative-complications-in-endoscopic-pituitary-surgery-a-systematic-review
#4
REVIEW
Daniel J Lobatto, Friso de Vries, Amir H Zamanipoor Najafabadi, Alberto M Pereira, Wilco C Peul, Thea P M Vliet Vlieland, Nienke R Biermasz, Wouter R van Furth
BACKGROUND: The ability to preoperatively predict postoperative complication risks is valuable for individual counseling and (post)operative planning, e.g. to select low-risk patients eligible for short stay surgery or those with higher risks requiring special attention. These risks however, are not well established in pituitary surgery. METHODS: We conducted a systematic review of associations between preoperative characteristics and postoperative complications of endoscopic transsphenoidal surgery according to the PRISMA guidelines...
September 15, 2017: Pituitary
https://www.readbyqxmd.com/read/28913579/association-between-fto-gene-polymorphisms-and-hdl-cholesterol-concentration-may-cause-higher-risk-of-cardiovascular-disease-in-patients-with-acromegaly
#5
Aleksandra Franczak, Katarzyna Kolačkov, Aleksandra Jawiarczyk-Przybyłowska, Marek Bolanowski
INTRODUCTION: Cardiovascular diseases are main cause of morbidity and mortality in acromegaly. Polymorphisms of FTO gene are associated with obesity and increased risk of CVD (independently of BMI). Aim of this study was to investigate the allele frequencies of two FTO gene polymorphisms: rs9939609 and rs9930506 in patients with acromegaly and to examine the association of FTO gene polymorphisms with BMI and selected metabolic parameters. MATERIALS AND METHODS: Identification of two single nucleotide polymorphisms of FTO gene was carried out in 51 patients with acromegaly using the minisequencing method...
September 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28900805/mgmt-and-msh6-immunoexpression-for-functioning-pituitary-macroadenomas
#6
Alexander S G Micko, Adelheid Wöhrer, Romana Höftberger, Greisa Vila, Christine Marosi, Engelbert Knosp, Stefan Wolfsberger
PURPOSE: Knowledge of biological behavior is crucial for clinical management of functioning pituitary macroadenomas. For recurrent cases unresponsive to standard treatment, temozolomide (TMZ) has been used as a therapeutic alternative. MGMT (O6-methyl-guanine-DNA methyltransferase) and MSH6 (mutS homolog 6) immunoexpression have been linked to the response to TMZ treatment and MGMT immunoexpression has been additionally linked to early recurrence of non-functioning pituitary adenomas...
September 12, 2017: Pituitary
https://www.readbyqxmd.com/read/28887782/development-of-acrodat-%C3%A2-a-new-software-medical-device-to-assess-disease-activity-in-patients-with-acromegaly
#7
Aart J van der Lely, Roy Gomez, Andreas Pleil, Xavier Badia, Thierry Brue, Michael Buchfelder, Pia Burman, David Clemmons, Ezio Ghigo, Jens Otto Lunde Jørgensen, Anton Luger, Joli van der Lans-Bussemaker, Susan M Webb, Christian J Strasburger
PURPOSE: Despite availability of multimodal treatment options for acromegaly, achievement of long-term disease control is suboptimal in a significant number of patients. Furthermore, disease control as defined by biochemical normalization may not always show concordance with disease-related symptoms or patient's perceived quality of life. We developed and validated a tool to measure disease activity in acromegaly to support decision-making in clinical practice. METHODS: An international expert panel (n = 10) convened to define the most critical indicators of disease activity...
September 8, 2017: Pituitary
https://www.readbyqxmd.com/read/28884415/criteria-for-the-definition-of-pituitary-tumor-centers-of-excellence-ptcoe-a-pituitary-society-statement
#8
Felipe F Casanueva, Ariel L Barkan, Michael Buchfelder, Anne Klibanski, Edward R Laws, Jay S Loeffler, Shlomo Melmed, Pietro Mortini, John Wass, Andrea Giustina
INTRODUCTION: With the goal of generate uniform criteria among centers dealing with pituitary tumors and to enhance patient care, the Pituitary Society decided to generate criteria for developing Pituitary Tumors Centers of Excellence (PTCOE). METHODS: To develop that task, a group of ten experts served as a Task Force and through two years of iterative work an initial draft was elaborated. This draft was discussed, modified and finally approved by the Board of Directors of the Pituitary Society...
September 7, 2017: Pituitary
https://www.readbyqxmd.com/read/28871375/walter-e-dandy-his-contributions-to-pituitary-surgery-in-the-context-of-the-overall-johns-hopkins-hospital-experience
#9
Andrea Corsello, Giulia Di Dalmazi, Fabiana Pani, Paulina Chalan, Roberto Salvatori, Patrizio Caturegli
BACKGROUND: Walter E. Dandy (1886-1946) was an outstanding neurosurgeon who spent his entire career at the Johns Hopkins Hospital. After graduating from medical school in 1910, he completed a research fellowship in the Hunterian laboratory with Harvey Cushing and then joined the Department of Surgery as resident, rising to the rank professor in 1931. Dandy made several contributions that helped building the neurosurgical specialty, most famously the introduction of pneumo-ventriculography to image brain lesions for which he received a Nobel prize nomination...
September 4, 2017: Pituitary
https://www.readbyqxmd.com/read/28871364/combined-dexamethasone-and-desmopressin-test-in-the-differential-diagnosis-of-acth-dependent-cushing-s-syndrome-and-pseudo-cushing-s-states
#10
LETTER
A Verónica Araya, Carmen Romero, Melchor Lemp
No abstract text is available yet for this article.
September 4, 2017: Pituitary
https://www.readbyqxmd.com/read/28853001/sphenoid-sinus-microbiota-in-pituitary-apoplexy-a-preliminary-study
#11
Gavin J Humphreys, Mueez Waqar, Andrew J McBain, Kanna K Gnanalingham
PURPOSE: There is a high incidence of abnormal sphenoid sinus changes in patients with pituitary apoplexy (PA). Their pathophysiology is currently unexplored and may reflect an inflammatory or infective process. In this preliminary study, we characterised the microbiota of sphenoid sinus mucosa in patients with PA and compared findings to a control group of surgically treated non-functioning pituitary adenomas (NFPAs). METHODS: In this prospective observational study of patients undergoing trans-sphenoidal surgery for PA or NFPA, sphenoid sinus mucosal specimens were microbiologically profiled through PCR-cloning of the 16S rRNA gene...
August 29, 2017: Pituitary
https://www.readbyqxmd.com/read/28849339/growth-hormone-producing-pituitary-adenomas-in-childhood-and-young-adulthood-clinical-features-and-outcomes
#12
Yuichi Nagata, Naoko Inoshita, Noriaki Fukuhara, Mitsuo Yamaguchi-Okada, Hiroshi Nishioka, Takeo Iwata, Katsuhiko Yoshimoto, Shozo Yamada
PURPOSE: Growth hormone (GH)-producing pituitary adenomas (PAs) in childhood or young adulthood are rare, and the details surrounding these tumors remain enigmatic. We present the clinical, pathological and genetic features of this disease. METHODS: We identified 25 patients aged 20 years or younger with GH-producing PAs who underwent surgery between 2003 and 2016 at Toranomon Hospital in Tokyo. We retrospectively reviewed the clinical data, treatment outcomes and pathological features of these patients to shed light on childhood acromegaly...
August 28, 2017: Pituitary
https://www.readbyqxmd.com/read/28831662/pituitary-apoplexy-and-rivaroxaban
#13
S Ly, A Naman, B Chaufour-Higel, M Patey, C Arndt, B Delemer, C F Litre
Pituitary apoplexy (PA), defined by the occurrence of a massive hemorrhagic necrotic rearrangement within a pituitary adenoma, is rare. Its occurrence can be associated with certain risk factors, including anticoagulation. We report the first case of PA with rivaroxaban which is one of the new oral anticoagulants: a 73 year-old patient presenting with severe headache and visual field deterioration. Surgery was performed. Radiotherapy treatment was decided three months after surgery because of tumor residue.
August 22, 2017: Pituitary
https://www.readbyqxmd.com/read/28828722/the-changing-sella-internal-carotid-artery-shift-during-transsphenoidal-pituitary-surgery
#14
Carlo Serra, Nicolai Maldaner, Giovanni Muscas, Victor Staartjes, Athina Pangalu, David Holzmann, Michael Soyka, Christoph Schmid, Luca Regli
PURPOSE: Injuries to the internal carotid artery (ICA) are potentially lethal complications in transsphenoidal surgery (TSS) for pituitary lesions. The intercarotid distance (ICD) is thus a major parameter, determining the width of the surgical corridor in TSS. The purpose of the study is to investigate changes in ICD at different levels of the ICA during and after TSS using high definition intraoperative MRI (3T-iMRI). METHODS: Pre-, intra- and 3 months postoperative MRI images of 85 TSS patients were reviewed...
August 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28828544/vasculogenic-hyperprolactinemia-severe-prolactin-excess-in-association-with-internal-carotid-artery-aneurysms
#15
Sunita M C De Sousa, Emily J Meyer, Wayne Rankin, Peter J Brautigan, Morton G Burt, David J Torpy
PURPOSE: Internal carotid artery (ICA) aneurysms have rarely been found in association with marked hyperprolactinemia in the absence of prolactinoma; the cause of hyperprolactinemia has never been investigated. We aimed to determine if the observed hyperprolactinemia is due to a vascular-derived or known prolactin secretagogue from the injured ICA, analogous to pregnancy-associated hyperprolactinemia putatively due to placental factors. METHODS: We conducted a case series and literature review of individuals with severe hyperprolactinemia in association with ICA aneurysms...
August 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28825168/surgical-debulking-of-pituitary-adenomas-improves-responsiveness-to-octreotide-lar-in-the-treatment-of-acromegaly
#16
Rudolf Fahlbusch, David Kleinberg, Beverly Biller, Vivien Bonert, Michael Buchfelder, Paolo Cappabianca, John Carmichael, William Chandler, Annamaria Colao, Ajax George, Anne Klibanski, Edmond Knopp, Juergen Kreutzer, Neehar Kundurti, Martin Lesser, Adam Mamelak, Rosario Pivonello, Kalmon Post, Brooke Swearingen, Mary Lee Vance, Ariel Barkan
BACKGROUND: Studies comparing primary medical treatment of acromegaly with surgery are often non-randomized, and not stratified by illness severity. We prospectively compared primary medical therapy with pituitary surgery in patients with acromegaly. All patients had macroadenomas, at least one random human growth hormone (GH) level ≥12.5 ng/mL, elevated IGF-I levels and failure to suppress GH to <1 ng/mL during an oral glucose tolerance test (oGTT). METHODS: Forty-one patients from seven centers were randomized to primary treatment with octreotide LAR, 30 mg every 4 weeks × 3 months (ARM A, N = 15), or pituitary surgery (ARM B, N = 26) using a 1:2 randomization design...
August 19, 2017: Pituitary
https://www.readbyqxmd.com/read/28823099/evidence-of-dysexecutive-syndrome-in-patients-with-acromegaly
#17
Shaobo Shan, Lingling Fang, Jia Huang, Raymond C K Chan, Guijun Jia, Weiqing Wan
PURPOSE: This study aimed to explore different aspects of executive function in patients with acromegaly and investigate the cause of dysexecutive syndrome in these patients. METHODS: We conducted five typical executive function tests (Stroop test, verbal fluency [VF] test, Hayling Sentence Completion Test [HSCT], N-back test, and Sustained Attention to Response Task [SART]) on 42 acromegalic patients and 42 strictly matched healthy controls. Comparative analyses were conducted for five major executive function domains...
August 19, 2017: Pituitary
https://www.readbyqxmd.com/read/28822018/the-prevalence-of-growth-hormone-deficiency-in-survivors-of-subarachnoid-haemorrhage-results-from-a-large-single-centre-study
#18
Sumithra Giritharan, Joanna Cox, Calvin J Heal, David Hughes, Kanna Gnanalingham, Tara Kearney
OBJECTIVE: The variation in reported prevalence of growth hormone deficiency (GHD) post subarachnoid haemorrhage (SAH) is mainly due to methodological heterogeneity. We report on the prevalence of GHD in a large cohort of patients following SAH, when dynamic and confirmatory pituitary hormone testing methods are systematically employed. DESIGN: In this cross-sectional study, pituitary function was assessed in 100 patients following SAH. Baseline pituitary hormonal profile measurement and glucagon stimulation testing (GST) was carried out in all patients...
August 18, 2017: Pituitary
https://www.readbyqxmd.com/read/28808855/incidence-of-myocardial-infarction-and-stroke-in-acromegaly-patients-results-from-the-german-acromegaly-registry
#19
Christof Schöfl, David Petroff, Anke Tönjes, Martin Grussendorf, Michael Droste, Günter Stalla, Cornelia Jaursch-Hancke, Sylvère Störmann, Jochen Schopohl
PURPOSE: Acromegaly is a rare disease generally brought about by a benign tumour in the pituitary and characterized by growth hormone (GH) and insulin-like growth factor 1 (IGF-1) excess. Increased mortality has been related to cardiovascular events that could be linked to these hormones and patients suffer from high rates of diabetes and hypertension. In this study, we examine if the incidence of myocardial infarction (MI) and stroke differ from that of the general population. METHODS: Data from the German Acromegaly Registry in seven specialized endocrine centres were analysed (n = 479, 56% female, 46 years old at diagnosis, 5549 person-years from diagnosis)...
August 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28766078/double-pituitary-adenomas-are-most-commonly-associated-with-gh-and-acth-secreting-tumors-systematic-review-of-the-literature
#20
REVIEW
Elizabeth Ogando-Rivas, Andrew F Alalade, Jerome Boatey, Theodore H Schwartz
INTRODUCTION: Double adenomas in the pituitary gland are a rare occurrence. The ability to cure a hormone-producing adenoma with surgery is dependent on the ability to identify and completely remove the correct adenoma. The relative frequency of each subtype of hormone-secreting adenomas confirmed with magnetic resonance image (MRI), surgery and immunohistochemistry is not defined. METHODS: Following PRISMA guidelines, we performed a systematic review of PubMed Central, Google Scholar, Scopus Database, Cochrane database and Science Research, using the key-words: "double pituitary adenomas", "multiple pituitary adenomas" and only papers where multiple or truly separate double pituitary adenomas were identified pre-surgically by MRI and/or confirmed by pathology/immunohistochemistry staining were included...
August 1, 2017: Pituitary
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