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Pituitary surgery

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https://www.readbyqxmd.com/read/28423663/a-novel-total-pituitary-hormone-index-as-an-indicator-of-postoperative-pituitary-function-in-patients-undergoing-resection-of-pituitary-adenomas
#1
Shousen Wang, Biao Li, Chenyu Ding, Deyong Xiao, Liangfeng Wei
The purpose of this study was to investigate the differences between pre- and postoperative pituitary hormone levels in patients undergoing surgical resection of pituitary adenoma and to identify factors associated with preoperative hypopituitarism.Data from 81 patients with histologically confirmed functioning and non-functioning pituitary adenomas (NFPA) who underwent transsphenoidal resection from January 2011 to December 2013 were retrospectively analyzed. Logistic regression was applied to analyze factors associated with preoperative hypopituitarism...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421822/deflation-of-a-rathke-cleft-cyst-triggered-rupture-of-a-superior-hypophyseal-artery-aneurysm-a-case-report
#2
Ryuheki Kitai, Takahiro Yamauchi, Yoshikazu Arai, Tetsuya Hosoda, Norichika Hashimoto, Kenzo Tsunetoshi, Yoshifumi Higashino, Ken-Ichiro Kikuta
A 57-year-old woman was diagnosed as a Rathke cleft cyst (RCC). Endoscopic transsphenoidal surgery (TSS) was performed uneventfully. She developed subarachnoid haemorrhage on postoperative day 3. The vessels adhered the cyst had been pulled into the pituitary fossa, causing an aneurysm.
April 19, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28412879/quantitative-analysis-of-transnasal-anterior-skull-base-approach-report-of-technology-for-intraoperative-assessment-of-instrument-motion
#3
Angelique M Berens, Richard Alex Harbison, Yangming Li, Randall A Bly, Nava Aghdasi, Manuel Ferreira, Blake Hannaford, Kris S Moe
OBJECTIVE: To develop a method to measure intraoperative surgical instrument motion. This model will be applicable to the study of surgical instrument kinematics including surgical training, skill verification, and the development of surgical warning systems that detect aberrant instrument motion that may result in patient injury. DESIGN: We developed an algorithm to automate derivation of surgical instrument kinematics in an endoscopic endonasal skull base surgery model...
April 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28407138/calcium-and-bone-turnover-markers-in-acromegaly-a-prospective-controlled-study
#4
Tina Constantin, Vin Tangpricha, Reshma Shah, Nelson M Oyesiku, Octavian C Ioachimescu, James Ritchie, Adriana G Ioachimescu
Context: Acromegaly has been associated with calcium-phosphate and bone turnover alterations. Controlled studies of these interactions are sparse. Objective: To evaluate calcium and bone metabolism in active and treated acromegaly. Design/Setting/Patients: We conducted a controlled prospective study at a tertiary referral center. We studied 22 patients with acromegaly referred for surgical or medical therapy (ACM) and 22 with nonfunctioning pituitary adenomas referred for surgery (control)...
April 12, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28403108/analyses-and-treatments-of-postoperative-nasal-complications-after-endonasal-transsphenoidal-resection-of-pituitary-neoplasms
#5
You Cheng, Fei Xue, Tian-You Wang, Jun-Feng Ji, Wei Chen, Zhi-Yi Wang, Li Xu, Chun-Hua Hang, Xin-Feng Liu
In this study, we analyze and discuss the treatments of postoperative nasal complications after endonasal transsphenoidal resection of pituitary neoplasms (PNs). We performed 129 endonasal transsphenoidal resections of PNs and analyzed and treated cases with nasal complications. After endonasal transsphenoidal resection of PNs, there were 26 cases of postoperative nasal complications (20.1%), including nasal hemorrhage (4.8%), cerebrospinal fluid rhinorrhea (6.9%), sphenoid sinusitis (2.3%), atrophic rhinitis (1...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28396686/expression-of-somatostatin-receptor-2-in-somatotropinoma-correlated-with-the-short-term-efficacy-of-somatostatin-analogues
#6
Wenjuan Liu, Lina Xie, Min He, Ming Shen, Jingjing Zhu, Yeping Yang, Meng Wang, Ji Hu, Hongying Ye, Yiming Li, Yao Zhao, Zhaoyun Zhang
The expression of somatostatin receptor subtypes (SSTRs) in pituitary growth hormone- (GH-) secreting adenomas may predict the response to somatostatin analogues (SSA). Our aim was to evaluate the value of the immunohistochemical (IHC) scores of 2 subtypes, SSTR2 and SSTR5, in predicting the short-term efficacy of SSA therapy in patients with active acromegaly. Ninety-three newly diagnosed acromegalic patients were included in our study. These patients were categorized into either a SSA-pretreated group (SA, n = 63) or a direct-surgery group (DS, n = 30), depending on whether or not presurgical SSA treatment was received...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28389909/dynamics-of-hormonal-disorders-following-unilateral-orchiectomy-for-a-testicular-tumor
#7
Paweł J Wiechno, Maria Kowalska, Jakub Kucharz, Małgorzata Sadowska, Wojciech Michalski, Grażyna Poniatowska, Joanna Jońska-Gmyrek, Joanna Rzymkowska, Karol Nietupski, Tomasz Demkow
Testicular tumors and their treatment interfere with homeostasis, hormonal status included. The aim of the study was to evaluate hormonal disorders of the pituitary-gonadal axis in men treated for testicular tumors. One hundred twenty-eight men treated for a unilateral testicular tumor at our institution were included. The hormonal status was prospectively evaluated in 62 patients before orchiectomy, 120 patients 1 month after orchiectomy and 110 patients at least 1 year after the treatment. The concentrations of human chorionic gonadotropin (hCG), testosterone (T), estradiol, luteinizing hormone (LH), follicle-stimulating hormone (FSH) and prolactin were measured...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28389053/non-functioning-pituitary-adenoma-underwent-surgery-a-multicenter-retrospective-study-over-the-last-four-decades-1977-2015
#8
Pedro Iglesias, Karina Arcano, Vanessa Triviño, Paula García-Sancho, Juan José Díez, Fernando Cordido, Carles Villabona
OBJECTIVE: To assess clinical features, diagnostic procedures, therapies and outcomes in patients with clinically non-functioning pituitary adenomas (NFPAs) surgically treated over the last four decades. DESIGN AND METHODS: A multicenter retrospective study in NFPA patients periodically followed up in specialized neuroendocrinology units who underwent surgery in the period 1977-2015 was performed. RESULTS: A total of 131 patients were studied [66 women (50...
April 4, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28387628/endonasal-endoscopic-pituitary-surgery-in-the-elderly
#9
Peter J Wilson, Sacit B Omay, Ashutosh Kacker, Vijay K Anand, Theodore H Schwartz
OBJECTIVE Pituitary adenomas are benign, slow-growing tumors that cause symptoms either through mass effect or hormone overproduction. The decision to operate on a healthy young person is relatively straightforward. In the elderly population, however, the risks of complications may increase, rendering the decision more complex. Few studies have documented the risks of surgery using the endonasal endoscopic approach in a large number of elderly patients. The purpose of this study was to audit a single center's data regarding outcomes of purely endoscopic endonasal transsphenoidal resection of pituitary adenomas in elderly patients and to compare them to the current literature...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28383413/progressive-visual-disturbance-and-enlarging-prolactinoma-caused-by-melanoma-metastasis-a-case-report-and-literature-review
#10
Chuanwei Yang, Ling Liu, Xiaoqiang Lan, Shiqiang Zhang, Xinyu Li, Bo Zhang
RATIONALE: Melanoma metastases to the pituitary adenoma (MMPA) are extremely rare, with only 1 reported case. To date, the melanoma metastasis to the existing prolactinoma has not been reported in literatures. PATIENT CONCERNS: We report a case of 62-year-old woman presented with progressive visual disturbance and hyperprolactinemia. Magnetic resonance imaging demonstrated the presence of a round sellar mass. DIAGNOSES: Melanoma metastasis to the pituitary adenoma...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28377801/current-best-practice-in-the-management-of-patients-after-pituitary-surgery
#11
REVIEW
Alessandro Prete, Salvatore Maria Corsello, Roberto Salvatori
Sellar and parasellar masses are a common finding, and most of them are treated surgically via transsphenoidal approach. This type of surgery has revolutionized the approach to several hypothalamic-pituitary diseases and is usually effective, and well-tolerated by the patient. However, given the complex anatomy and high density of glandular, neurological and vascular structures in a confined space, transsphenoidal surgery harbors a substantial risk of complications. Hypopituitarism is one of the most frequent sequelae, with central adrenal insufficiency being the deficit that requires a timely diagnosis and treatment...
March 2017: Therapeutic Advances in Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28375573/delayed-tsh-recovery-after-dose-adjustment-during-tsh-suppressive-levothyroxine-therapy-of-thyroid-cancer
#12
Hye In Kim, Tae Hyuk Kim, Hosu Kim, Young Nam Kim, Hye Won Jang, Jung-Han Kim, Kyu Yeon Hur, Jae Hoon Chung, Sun Wook Kim
BACKGROUND: Delayed thyroid-stimulating hormone (TSH) recovery during treatment of Graves' disease is caused by long-term excessive thyroid hormone, which results in down-regulation of pituitary thyrotropes. However, it is unknown whether delayed TSH recovery exists after levothyroxine (LT4) dose reduction in differentiated thyroid cancer (DTC) patients after long-term TSH suppression. METHODS: We retrospectively reviewed 97 DTC patients with LT4 dose reduction after long-term TSH suppression...
April 4, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28370545/molecular-mechanism-of-feedback-regulation-of-17%C3%AE-estradiol-on-two-kiss-genes-in-the-protogynous-orange-spotted-grouper-epinephelus-coioides
#13
Yin Guo, Qingqing Wang, Gaofei Li, Meng He, Haipei Tang, Haifa Zhang, Xiaoli Yang, Xiaochun Liu, Haoran Lin
Kisspeptins are considered critical regulators in the hypothalamic-pituitary-gonadal axis because they can stimulate secretion of Gonadotropin-releasing hormone in mammals, and may also mediate the feedback regulation of sex steroids in the hypothalamus. Two kiss1 paralogues (kiss1 and kiss2) were identified in teleosts, hinting at their increased complexity of signaling for sex-steroid feedback regulation. In the present study, molecular pathways by which 17β-estradiol (E2 ) exerted feedback regulation on two kiss genes, via three types of estrogen receptors, were investigated in the protogynous orange-spotted grouper (Epinephelus coioides)...
March 30, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28368500/long-term-endocrine-outcomes-following-endoscopic-endonasal-transsphenoidal-surgery-for-acromegaly-and-associated-prognostic-factors
#14
Harish Babu, Alicia Ortega, Miriam Nuno, Aaron Dehghan, Aaron Schweitzer, H Vivien Bonert, John D Carmichael, Odelia Cooper, Shlomo Melmed, Adam N Mamelak
BACKGROUND: Long-term remission rates from endoscopic transsphenoidal surgery for acromegaly and their relationship to prognostic indicators of disease aggressiveness are not well documented. OBJECTIVE: To investigate long-term remission rates in patients with acromegaly after endoscopic transsphenoidal surgery, and correlate this with molecular and radiographic markers of disease aggressiveness. METHODS: We identified all patients undergoing endoscopic transsphenoidal surgery for acromegaly from 2005 to 2013 at Cedars-Sinai Pituitary Center...
March 29, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28359095/radiotherapy-especially-at-young-age-increases-the-risk-for-de-novo-brain-tumors-in-patients-treated-for-pituitary-sellar-lesions
#15
Pia Burman, André P van Beek, Beverly M K Biller, Cecilia Camacho-Hübner, Anders F Mattsson
Context: De novo brain tumors developing after treatment of pituitary/sellar lesions have been reported, but it is unknown whether this is linked to any of the treatment modalities. Objective: To study the occurrence of malignant brain tumors and meningiomas in a large cohort of patients treated for pituitary/sellar lesions, with special emphasis on the role of radiotherapy (RT). Patients and Methods: Patients (n = 8917) who were hypopituitary due to pituitary adenomas, craniopharyngiomas, and other sellar tumors followed in KIMS (Pfizer International Metabolic Database) from 1994 to 2012 were included...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28357143/a-rapid-biochemical-and-radiological-response-to-the-concomitant-therapy-with-temozolomide-and-radiotherapy-in-an-aggressive-acth-pituitary-adenoma
#16
Ana Misir Krpan, Tina Dusek, Zoran Rakusic, Mirsala Solak, Ivana Kraljevic, Vesna Bisof, David Ozretic, Darko Kastelan
Background and Importance. In the last eight years temozolomide (TMZ) has been used as the last-line treatment modality for aggressive pituitary tumors to be applied after the failure of surgery, medical therapy, and radiotherapy. The objective was to achieve a rapid control of tumor growth and hormone normalization with concurrent chemoradiotherapy in a patient with very aggressive ACTH pituitary adenoma. Clinical Presentation. We describe a patient with an aggressive ACTH-producing adenoma treated with concurrent temozolomide and radiotherapy...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28353090/tissue-inhibitors-of-metalloproteinase-expressing-cells-in-human-anterior-pituitary-and-pituitary-adenoma
#17
Alimuddin Tofrizal, Ken Fujiwara, Morio Azuma, Motoshi Kikuchi, Depicha Jindatip, Takashi Yashiro, Shozo Yamada
Extracellular matrix (ECM) is essential in tissue physiology and pathologic conditions such as tumorigenesis. It affects tumor cell behavior, proliferation, and metastasis. Pituitary adenomas differ in their clinical characteristics, including ECM deposition, and we recently reported that the characteristics of collagen-producing cells differed between control human anterior pituitary gland and pituitary adenomas. ECM deposition is not defined solely by production; degradation and maintenance are also important...
March 28, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28352341/expression-and-significance-of-timp-3-pacap-and-vip-in-vaginal-wall-tissues-of-patients-with-stress-urinary-incontinence
#18
Bo Fan, Xiaohua Jin, Yi Shi, Hailiang Zhu, Wenjun Zhou, Wenjian Tu, Li Ding
The objective of the present study was to investigate whether tissue inhibitor of metalloproteinase-3 (TIMP-3), pituitary adenylate cyclase-activating polypeptide (PACAP), and vasoactive intestinal peptide (VIP) participate in the occurrence of female stress urinary incontinence (SUI) by measuring the expression levels of TIMP-3, PACAP, and VIP in the vaginal wall and analyzing their correlation to understand the pathogenesis of female SUI. Forty female patients who were admitted to our hospital for tension-free obturator tape surgery for treatment of SUI from April, 2012 to December, 2015 were selected as the study group...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28349579/periodic-olfactory-assessment-in-patients-undergoing-skull-base-surgery-with-preservation-of-the-olfactory-strip
#19
Smita Upadhyay, Lamia Buohliqah, Ricardo L L Dolci, Bradley A Otto, Daniel M Prevedello, Ricardo L Carrau
OBJECTIVES/HYPOTHESIS: Others have reported olfactory disturbances following endoscopic approaches to the skull base. However, there is a lack of consensus on the extent and duration of dysfunction. This study aimed to compare our results with previously published work and to validate the olfactory strip-sparing approach. STUDY DESIGN: Prospective study to assess olfaction in 50 patients scheduled to undergo resection of skull base tumors via extended endoscopic approaches...
March 27, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28347892/transcranial-evacuation-of-atypical-progressive-supradiaphragmatic-hematoma-after-transsphenoidal-complete-resection-of-pituitary-adenoma
#20
Hussam Metwali, Rudolf Fahlbusch
OBJECTIVE: Supradiaphragmatic hematoma is a special type of hematomas after transsphenoidal resection (TS) of pituitary adenoma that required special management. METHODS: two patients suffered from symptomatic supradiaphragmatic hematomas after TS total resection of pituitary adenomas in the absence of vascular anomalies. Both patients also developed hydrocephalus at the time of diagnosis of the hematoma. The initial endoscopic endonasal inspection revealed the absence of subdiaphragmatic bleeding...
March 24, 2017: World Neurosurgery
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