Searchable abstracts of presentations at key conferences in endocrinology

ea0081ep64 | Adrenal and Cardiovascular Endocrinology | ECE2022

Pheochromocytoma experience

Pekkolay Zafer

Aim: This study aims to evaluate patients with a diagnosis of pheochromocytoma.Method: This retrospective case–control study includes data from a tertiary endocrine center from January 1, 2010, to December 31, 2020. Demographic, laboratory, operation/pathology data of patients with pheochromocytoma were recorded.Results: A total of 38 patients (20 patients (52.6%) were male) were included in the study. Median age 48 years (17&...

ea0081ep1154 | Thyroid | ECE2022

Stop oral therapy and start later: This is a new perspective for hypothyroid patients who need lifelong intravenous levothyroxine

Pekkolay Zafer

Introduction: Although the replacement route is oral in most hypothyroid patients, euthyroidism cannot be achieved with oral therapy in some patients rarely (1). Although oral levothyroxine is used above the standard dose (1.6-1.9 mg/kg/day), there is resistance to oral therapy if there are laboratory and clinical signs of hypothyroidism (2). Crushing the drug and using it with vitamin C increases the absorption of levothyroxine (3). Rarely, some patients require lifelong intr...

ea0070ep507 | Thyroid | ECE2020

What is responsible for subacute thyroiditis? Virus or immune system: A case report

Geneș Dilek , Pekkolay Zafer , Güven Mehmet , Şimșek Mehmet , Saraçoğlu Hüsna , Kemal Tuzcu Alpaslan

Background: Subacute thyroiditis (SAT) is a transient thyrotoxic state characterized by suppressed TSH and low uptake of iodine 123 on thyroid scanning. SAT is a self limiting, possibly viral and inflammatory thyroid disorder that is usually associated with thyroid pain and systemic symptoms. Many factors can cause SAT. Infections are considered the most common cause. Vaccines can also lead to SAT.Case report: A 46-year-old male with a history of type 1 ...

ea0090p678 | Pituitary and Neuroendocrinology | ECE2023

Genetic Analyses Of 20 Turkish FIPA Families Utilizing Whole Exome Sequencing: Preliminary Results Of A Multicenter Collaborative Study

Eda Ertorer Melek , Tuncer Feyza , Ciftci Sema , Tanrikulu Seher , Soyluk Selcukbiricik Ozlem , Topaloğlu Omercan , Evran Mehtap , Kadioglu Pinar , Aydin Sevcan , Can Bulent , Sehit Canan , Pekkolay Zafer , Oruk Gonca , Cetinarslan Berrin , Yarman Sema

Objective: Hereditary pituitary adenomas (PAs) are rare and occur either isolated or as part of a syndrome. Familial isolated pituitary adenoma (FIPA) is the presence of only PA in at least two members of a family, where “Aryl hydrocarbon receptor interacting protein-AIP” gene mutations have been identified in 10-20% of cases. However, the cause of tumorigenesis in the majority is unknown. We aimed to identify novel genetic variants in a cohort of FIPA patie...

ea0070aep141 | Bone and Calcium | ECE2020

Identifying clinical characteristics of hypoparathyroid patients in turkey: The ‘HIPOPARATURK-NET Study’

Konca Degertekin Ceyla , Gogas Yavuz Dilek , Pekkolay Zafer , Ugur Kader , Or Koca Arzu , Topaloğlu Ömercan , Ozdemir Kutbay Nilufer , Aydoğan Ünsal Yasemin , Yilmaz Nusret , Omma Tülay

Hypoparathyroidism is a rare endocrine disorder whose epidemiologic characteristics regarding the cause, clinical course, acute and chronic complications have not been well defined. There is also a substantial geographic variability regarding those parameters, and country-specific local data is scarce.This study was conducted to assess the baseline characteristics, including the demographics, etiologic distribution, disease severity, medications use...

ea0090p153 | Pituitary and Neuroendocrinology | ECE2023

Comparison of Clinical, Hormonal, Pathological and Treatment Outcomes of Ectopic ACTH Syndrome by Gender: Results of a Multicenter Study

Ciftci Sema , Yilmaz Nusret , Soyluk Selcukbiricik Ozlem , Hekimsoy Zeliha , Gokcay Canpolat Asena , Topsakal Senay , Yaylali Guzin , Misiroglu Fuat , Gul Nurdan , Kubat Uzum Ayse , Hacioglu Aysa , Yorulmaz Goknur , Ozisik Hatice , Sarer Yurekli Banu , Pekkolay Zafer , Karaca Zuleyha , Duran Cevdet , Nur Kebapci Medine , Yarman Sema

Objective: Data on gender comparisons of diagnosis, management and prognostic factors in Cushing’s disease are very limited, however, there is no such a comparison in ectopic ACTH syndrome (EAS) in the literature. The aim of this study is to compare clinical and hormonal data, neuroendocrine tumor (NET) localization, treatment and survival outcomes in Cushing’s syndrome due to EAS by gender.Material-Methods: Eleven experienced centers from our ...

ea0070aep598 | Pituitary and Neuroendocrinology | ECE2020

The importance of DHEA-S levels in cushing’s syndrome; is there a cut-off value in the differential diagnosis?

Ciftci Dogansen Sema , Soyluk Selcukbiricik Ozlem , Selek Alev , Erol Selvinaz , Hekimsoy Zeliha , Esen Pazir Ayse , Dursun Huseyin , Sahin Serdar , Oruk Gonca , Mert Meral , Soylu Hüseyin , Sarer Yurekli Banu , Eda Ertorer Melek , Omma Tülay , Evran Mehtap , Adaș Mine , Tanrikulu Seher , Aydin Kadriye , Pekkolay Zafer , Can Bulent , Karakilic Ersen , Karaca Zuleyha , Bilen Habib , Canturk Zeynep , Cetinarslan Berrin , Kadioglu Pinar , Yarman Sema

Purpose: To evaluate the relationship between basal dehydroepiandrosterone-sulfate (DHEA-S) levels and other tests used in the diagnosis and differential diagnosis of Cushing’s Syndrome (CS) among the patients with pathologically confirmed CS.Methods: In this multicenter study, the data of 623 patients with CS were evaluated retrospectively. The patients were classified as Group 1 (n = 353 Cushing’s disease;CD), Group 2 (n</e...

ea0090oc8.4 | Oral Communications 8: Calcium and Bone | ECE2023

Bone mineral density and fracture status of differentiated thyroid cancer patients under TSH suppression treatment

Yavuz Dilek Gogas , Dincer Yazan Ceyda , Hekimsoy Zeliha , Aydin Kadriye , Gokkaya Naile , Ersoy Canan , I mge Aydogan Berna , Akalin Aysen , Topaloğlu Omercan , Ademoglu Dilekci Esra Nur , Cansu Guven Baris , Can Bulent , Gungor Kagan , Evran Mehtap , Keskin Lezzan , Uc Ziynet Alphan , Iyidir Ozlem , Ozsari Levent , Garip Tayfun , Elbuken Gulsah , Mert Meral , Pekkolay Zafer , Canturk Zeynep , Ilgin Can , Kutbay Nilufer Ozdemir , Yorulmaz Goknur , Kalkan Ahmet Toygar , Aydoğan Unsal Yasemin , Yay Adnan , Karagun Barış , Bozkur Evin

Aim: Thyroid Stimulating Hormone (TSH) suppression treatment may have a detrimental effect on bone tissue in differentiated thyroid cancer (DTC) patients. The current study aimed to investigate vertebral fracture, bone mineral density measurements, and TSH levels in DTC patients under levothyroxine (LT4) suppression treatment after total thyroidectomy and/or radioiodine ablation therapy in a multicentric setting.Material and Method: This multicentric cro...

ea0070aep182 | Bone and Calcium | ECE2020

Clinical characteristics of subjects with very high serum 25 OH vitamin D levels in turkey: DeVIT-TOX survey

Pekkolay Zafer , Gogas Yavuz Dilek , Sedar Saygili Emre , Topaloğlu Ömercan , Emir Önder Çağatay , Soylu Hikmet , Taskaldiran Isilay , Esen Pazır Ayșe , Ugur Kader , Tanrikulu Seher , Nur Firat Sevde , Meryem Atak Burcu , Batman Adnan , Omma Tülay , Cagiltay Eylem , Ozdemir Kutbay Nilufer , Çetinkaya Altuntaș Seher , Nasiroglu Imga Narin , Karakilic Ersen , Hekimsoy Zeliha , Kılınç Faruk , Yay Adnan , Eroğlu Mustafa , Kemal Tuzcu Alpaslan

Background: Treatment of vitamin D deficiency orinappropriate vitamin D supplementation may cause side effects associated with hypercalcemia. We observed a tendency to use very high single dose cholecalciferol for treatment of vitamin D deficiency.Aim: The primary aim of this study was to examine the clinical characteristics of patientswith very high serum 25OHD levels of vitamin D toxicity in Turkey.Materials and methods: An invit...

ea0090rc7.5 | Rapid Communications 7: Pituitary and Neuroendocrinology 2 | ECE2023

Evaluation and follow-up data of patients diagnosed with hypophysitis: A multicentric nationwide study

Hacioglu Aysa , Karaca Zuleyha , Uysal Serhat , Ozkaya Hande Mefkure , Kadioglu Pinar , Selcukbiricik Ozlem Soyluk , Yarman Sema , Gul Nurdan , Koksalan Damla , Selek Alev , Cetinarslan Berrin , Canturk Zeynep , Tuğce Şah unal Fatma , Corapcıoğlu Demet , Sahin Mustafa , Babayeva Afruz , Akturk Mujde , Eraydin Ayten , Fenkci Semin , Piskinpasa Hamide , Ciftci Sema , Dokmetaş Meric , Şahin Onur , Sebile Dokmetas H. , Ozturk Sadettin , Akarsu Ersin , Kılıc Kan Elif , Atmaca Aysegul , Pehlivan Esma , Saygili Fusun , Erkan Buruc , Burhan Sebnem , Omma Tulay , Uc Ziynet Alphan , Elbuken Gulsah , Bayram Fahri , Yorulmaz Goknur , Cansu Guven Baris , Bostan Hayri , Turan Kubra , Sener Selcuk Yusuf , Gorar Suheyla , Pekkolay Zafer , Hekimsoy Zeliha , Dogruel Hakan , Ertorer Melek Eda , Topaloğlu Omercan , Celik Ozlem , Iyidir Ozlem , Kelestimur Fahrettin

Background: Hypophysitis is a rare group of disease characterized with infla mmation of the pituitary gland. Rarity of the disease obviates development of a treatment strategy. We aimed to present the nationwide data of the demographics, clinical and radiological characteristics, treatment modalities and responses of the patients diagnosed with hypophysitis in a retrospective manner.Methods: The endocrinology clinics all over the country were invited to ...