Medici per Colonscopia all'estero — Pagina 6

Professor Raanan Berger, MD PhD, is a medical oncologist and radiotherapist. He is Director of the Cancer Center at Sheba Medical Center and heads its clinical research unit. He was listed in Forbes Israel’s “Best Doctors” (2025). He leads the genitourinary oncology program with a focus on prostate cancer. His care includes systemic therapy and radiotherapy in a multidisciplinary, patient-centered model.

He is board-certified in oncology. He earned his MD and PhD at Tel Aviv University and completed his clinical training at Sheba. He then completed a postdoctoral fellowship at Dana-Farber/Harvard, focusing on prostate cancer with Dr. Philip Kantoff and molecular oncology in Dr. William C. Hahn’s lab. He is a member of ESMO and ASCO. He has co-authored more than 20 peer-reviewed papers, including studies on outcomes in high- versus very high-risk prostate cancer and on BRCA1/2 in large cohorts.

Dr. José Miguel Esteban López-Jamar is a gastroenterologist. He has led the Digestive Endoscopy and Digestive Diseases Units at Hospital Ruber Internacional since 2007. He has more than 20 years of experience. He is a Spanish pioneer in endoscopic ultrasound (EUS). His work covers diagnostic and interventional endoscopy. He uses innovative, minimally invasive techniques for complex gastrointestinal disease.

He was Head of Endoscopy (2008–2012) and Head of Endoscopic Innovation (2012–2014) at Hospital Clínico San Carlos. He completed international training at AMC Amsterdam, Institut Paoli-Calmettes in Marseille, and Zhongshan Hospital in Shanghai. He holds an MD and a PhD from the Complutense University of Madrid. He is a specialist in gastroenterology. He takes part in multicenter European studies and clinical trials. He is a member of SEPD, SEED, and ESGE.

Dr. Nihat Okcu is a gastroenterologist and gastrointestinal surgeon at Medipol University Pendik Hospital. He specializes in the treatment of complex digestive conditions and liver diseases. Dr. Okcu has published over 20 academic papers on gastric cancer and endoscopic diagnosis. He serves at a hospital with a 95.4% healthcare quality score.

• Performs laparoscopic anti-reflux surgery and small intestine resections.
• Expert in gastric polyps removal and duodenal polyp excision.
• Treats chronic conditions like cirrhosis, Crohn’s disease, and ulcerative colitis.
• Provides diagnostic gastroscopy with biopsy and ultrasound-guided procedures.

Dr. Mehmet Ali Gok is an Associate Professor of General Surgery at Medipol University Pendik Hospital. He specializes in laparoscopic hernia repair and metabolic surgery. Dr. Gok has authored over 20 national and international scientific articles on surgical outcomes. He practices at a hospital with 95.4 out of 96.4 healthcare quality points.

• Certified in robotic colorectal surgery and laparoscopic hernia techniques on cadavers.
• Received specialized training from the European Hernia Society in Dubai.
• Served as a former Chief Physician at Silopi State Hospital.
• Editor of several medical books on oncological, hernia, and minimal invasive surgery.

Dr. Nurana Guliyeva is a gastroenterologist at the Biological Medicine Integrative Health Center in Baku. She specializes in treating viral hepatitis, cirrhosis, and complex autoimmune liver diseases. Dr. Guliyeva completed an internship in microbiology and infectious diseases at Ege University in Turkey. She focuses on digestive health, including stomach, intestine, and pancreas disorders.

• Trained at Ege University and Hacettepe Hospital in Turkey.
• Treats viral hepatitis A, B, C, and D alongside drug-induced liver poisoning.
• Performs specialized procedures like colon hydrotherapy and gastric polyp removal.
• Works at an integrative health center treating over 84,000 patients annually.

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

Il medico ha completato gli studi di medicina presso l'Università di Vienna nel 1998, con formazione presso UCLA e l'Università della Pennsylvania. Dal 2000 al 2006, il medico si è formato come specialista in medicina interna presso l'Ospedale Generale di Vienna, seguito da una specializzazione aggiuntiva in gastroenterologia ed epatologia dal 2006 al 2008, e in medicina intensiva interna dal 2008 al 2010.<\/p>

Nel 2003, il medico ha fondato e gestito il laboratorio di emodinamica epatica e la clinica ambulatoriale per la cirrosi presso l'Università Medica di Vienna. Dal 2018, il medico è a capo del Dipartimento di Medicina Interna I presso l'Ospedale dei Fratelli della Misericordia di Vienna.<\/p>

Il medico è specialista in chirurgia generale e viscerale, operando come chirurgo presso il Dipartimento di Chirurgia Generale dell'Università Medica di Vienna. Guidando il team di chirurgia gastrica ed esofagea, il medico è anche il Capo dell'Unità Tumori Gastroesofagei presso il Centro Oncologico Comprensivo di Vienna.<\/p>

Con oltre 240 articoli specializzati pubblicati, il medico ha ricoperto ruoli significativi come Segretario Generale della Società Austriaca di Oncologia Chirurgica dal 2014 e Capo del Servizio GI Superiore dal 2012. Il medico è Professore Associato di Chirurgia ed è specialista in chirurgia GI superiore dal 2007.<\/p>

Il medico si è laureato presso la Facoltà di Medicina dell'Università di Istanbul Cerrahpasa e ha una vasta esperienza in medicina interna e gastroenterologia. La formazione specialistica è stata completata presso l'Ospedale di Formazione e Ricerca Haydarpaşa Numune, con un focus sulla gastroenterologia. Il medico ha ricoperto posizioni in vari ospedali, tra cui l'Ospedale Haydarpasha Nummune e l'Ospedale di Formazione e Ricerca Shishli Etfal, e ha lavorato presso la Clinica Privata Unimed e l'Hospitallium Camlica.<\/p>

L'esperienza include procedure come esofagogastroduodenoscopia, colonscopia, cromoendoscopia e vari trattamenti per emorragie e stenosi gastrointestinali. Il medico è esperto in tecniche avanzate come la legatura delle varici esofagee e la gastrostomia endoscopica percutanea.<\/p>

Dr. Osman Aktas is a general surgeon at Avicenna International Hospital in Istanbul. He completed laparoscopic surgery training in Germany. He specializes in oncological and metabolic surgeries. Dr. Aktas previously served as chief physician at several prominent military hospitals.

• Performs complex cancer surgeries like the Whipple procedure and colorectal resections.
• Treats obesity and diabetes using metabolic surgery techniques.
• Manages gastrointestinal tumors and obstructions through minimally invasive methods.
• Uses laser therapy for modern treatment of anal diseases.

Il medico ha 17 anni di esperienza in Chirurgia del Tratto Gastrointestinale Superiore e Chirurgia per la Perdita di Peso, essendo tra i primi in India ad essere addestrato in Banded Bypass, Banded Sleeve Gastrectomy e Mini Gastric Bypass a Los Angeles, USA. Esegue la Sleeve Gastrectomy innovativa con bypass duodeno-digiunale, nota per la sua efficacia nella perdita di peso e nella risoluzione del Diabete Mellito di Tipo II, specialmente per i pazienti vegetariani. Addestrato in Italia per la Chirurgia GI Robotica, utilizza tecniche avanzate per precisione e recupero.<\/p>

Pratica Chirurgia per la Perdita di Peso e Metabolica con Tecniche Minimamente Invasive dal 2009, solo l'1% dei suoi pazienti sperimenta una morbilità significativa, allineandosi con gli standard globali. Oltre il 90% dei pazienti diabetici mantiene uno stile di vita sano senza insulina o farmaci orali.<\/p>

Il medico gestisce casi bariatrici complessi, inclusi Sleeve Gastrectomy, Gastric Bypass e Chirurgia Bariatrica di Revisione. È esperto in chirurgia avanzata minimamente invasiva e robotica del tratto gastrointestinale superiore e biliopancreatica, con numerose pubblicazioni e interventi internazionali.<\/p>

Il dipartimento di chirurgia bariatrica è certificato come centro di eccellenza dalla International Excellence Foundation.<\/p>

Dr. Cheon Won Seok is the Director of the Department of Gastroenterology at Naeun Hospital. His expertise includes gastrointestinal diseases; upper gastrointestinal endoscopy and colonoscopy; polypectomy; ESD (Endoscopic Submucosal Dissection); small-bowel capsule endoscopy; digestive disorders; gastric and esophageal cancer; Helicobacter pylori infection; liver diseases; and inflammatory bowel disease, including Crohn’s disease and ulcerative colitis.

He graduated from Kyung Hee University College of Medicine. He completed his internship at Kyung Hee Medical Center and his internal medicine residency at Hallym University Sacred Heart Hospital. He later served as a Clinical Instructor in Gastroenterology at Chung-Ang University Hospital. He is a full member of the Korean Association of Internal Medicine and a life member of the Korean Society of Gastrointestinal Endoscopy. He is also a board-certified subspecialist in gastrointestinal endoscopy and serves as a medical advisor to KBS, MBC, SBS, JTBC, and MBN.

Dr. Holovyna Svitlana is a gastroenterologist and nutritionist with more than 23 years of experience. She is a member of the Association of Dietitians and Gastroenterologists of Ukraine. She also belongs to the European Association for the Study of the Liver (EASL) and the Association of Preventive and Anti-Age Medicine.

Dr. Holovyna diagnoses and treats gastrointestinal disorders, metabolic diseases, and nutrition-related issues. She uses an integrated and evidence-based approach. Her focus is on restoring digestive health, managing chronic conditions, and improving patient well-being with personalized diet and treatment plans.

Il medico ha completato la formazione di specializzazione in Oncologia Radioterapica presso la Facoltà di Medicina dell'Università di Marmara dal 2012 al 2016. Prima di questo, il medico ha completato una laurea in Medicina, insegnata in inglese, presso la stessa istituzione dal 2004 al 2011. Il medico ha una solida base nell'educazione medica, iniziando con l'istruzione superiore presso la Scuola Numero Sedici di Shirvan in Azerbaigian dal 1998 al 2004.<\/p>

Dr. Turkan Ozturk Topcu is a clinical oncologist at Biruni University Hospital in Istanbul. She maintains professional ties with the MD Anderson Cancer Center in the USA. She specializes in the treatment of breast, lung, and gastrointestinal cancers. Dr. Topcu is a member of both ESMO and ASCO.

• Completed a fellowship at the Sunnybrook Odette Cancer Center Breast Clinic in Canada.
• Treats a wide range of conditions including liver, pancreatic, and gynecological cancers.
• Held clinical roles at major institutions like Moffitt Cancer Center in the USA.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Abu Shamsiya Rami Nuamanovych is a surgical oncologist and gastrointestinal specialist at Dievo Surgery Center. He serves as a consultant for the World Health Organization regarding laparoscopic procedures. Dr. Nuamanovych has performed thousands of surgeries, including bariatric and complex cancer operations. He is the President of the Association of Arab Doctors of Ukraine.

• Expertise in laparoscopic hernia repair and gallbladder removal.
• Performs bariatric procedures like gastric bypass and sleeve gastrectomy.
• Treats gastrointestinal cancers, including stomach, colon, and rectal tumors.
• Member of the International Federation for the Surgery of Obesity (IFSO).

Dr. Meryem Keceli Basaran is an Associate Professor and pediatric gastroenterologist at Biruni University Hospital. She specializes in digestion, hepatology, and nutrition for children. Dr. Basaran is a member of ESPGHAN, the European authority on pediatric gastroenterology. She manages gastrointestinal food allergies and inflammatory conditions like Crohn’s disease. She works at a TEMOS-accredited university hospital in Istanbul.

• Specializes in care before and after liver transplantation.
• Treats irritable bowel syndrome, celiac disease, and ulcerative colitis.
• Expert in managing chronic diarrhea, malabsorption, and faecal incontinence.
• Performs specialized diagnostic colonoscopies and gastroscopies with biopsy.

Areas of Interests

• Breast cancer
• Lung cancer
• Colorectal cancers
• Gynecological and urogenital cancers
• Molecular Oncology

Education:

• Kızıltepe Anatolian High School 2001
• Dicle University Faculty of Medicine 2007
• Istanbul Medeniyet University Göztepe Training and Research Hospital 2014
• Kartal City Hospital 2021
• Associate Professor of Medical Oncology 2023

Experience:

• Liv Hospital Ulus
• Adıyaman University Training and Research Hospital
• Istanbul Umraniye Training and Research Hospital
• Istanbul Umraniye Training and Research Hospital

Research:

• Phase II, Randomized, Open-Label, Multicenter Study to Comparatively Evaluate the Efficacy and Safety of GDC-9545 and Physician-Preferred Endocrine Monotherapy in Previously Treated, Estrogen Receptor Positive, HER2-Negative, Locally Advanced or Metastatic Breast Cancer Patients, Other ( International), Dr. Murat Ayhan
• Phase III, Randomized, Evaluating the Efficacy and Safety of Palbociclib and Fulvestrant with Gdc-0077 Compared with Placebo in Patients with Pik3ca-Mutant, Hormone Receptor-Positive, HER2-Negative, Locally Advanced or Metastatic Breast Cancer. Double Blind, Placebo Controlled Study, Other (International), Dr. Murat Ayhan
• Randomized, Multicenter, Phase Ib/III Study Evaluating the Pharmacokinetics, Efficacy, and Safety of Subcutaneous Atezolizumab Compared to Intravenous Atezolizumab in Patients with Previously Treated Locally Advanced or Metastatic Non-Small Cell Lung Cancer, Other (International) Dr. Murat Ayhan
• Randomized, Controlled, Multicenter, Open-Label Study Including Observation Follow-Up for PSMA-PET-Negative Patients, Investigating the Efficacy and Safety of Addition of Apalutamide to Radiotherapy and LHRH Agonist in PSMA-PET-Positive High-Risk Hormone-Sensitive Prostate Cancer Patients, Other (International) Dr. Murat Ayhan
• Biomarker Study to Identify Patients with Advanced Stage Urothelial Cancer and Fibroblast Growth Factor Receptor Gene Aberrations-42756493BLC0002, Other (International), Dr. Murat Ayhan
• Publications:
• Ayhan M, Turan N, Köstek O, et all. Does the efficacy of regorafenib differ in chemotherapy refractory metastatic colorectal cancer patients who had mucinous pathology compared to those who had non-mucinous pathology? Curr Probl Cancer. 2021 Jun;45(3):100670. doi: 10.1016/j.currproblcancer.2020.100670.
• Ayhan M, Odabas H, Turan N, et all. Factors affecting the mortality rate of patients with cancer hospitalized with COVID-19: a single center's experience. J Chemother. 2021 Nov;33(7):499-508. doi: 10.1080/1120009X.2021.1923153.
• Ayhan M, Laçin Ş, Özyükseler DT, et all. Does systemic anti-tumor therapy increase COVID-19 risk in patients with cancer? J Oncol Pharm Pract. 2021 Sep;27(6):1461-1467. doi: 10.1177/10781552211015762.
• Ayhan M, Abamor E, Coban Kokten S, et al. Value of FDG PET/CT in Predicting Pathologic Complete Response After Neoadjuvant Chemotherapy in Locally Advanced Breast Cancer. EJMI 2022;6(2):165–175.
• Ayhan M, Terzioglu K. Experience With Rapid Drug Desensitization With Chemotherapeutics; A SingleCentre Retrospective Study. EJMI 2021;5(3):380–387.
• Doğan A, AYHAN M. Survival analysis of patients with triple-negative breast cancer: a single-center experience. Journal of Oncological Sciences, 8(2), 94-99., Doi: 10.37047/jos.2022-89749
• Terzioğlu K, Ayhan M. Comparative Assessment of Platinum Salts and Taxane Group Hypersensitivity Reactions, The Role of Skin Tests in Diagnosis? J Oncol Pharm Pract. 2021 Nov 30:10781552211050084. doi: 10.1177/10781552211050084.
• Tacar SY, Selcukbiricik F, Yilmaz M, Erturk K, Murat Sarici A, Gulturk I, Ayhan M, Tural D. Nivolumab for metastatic uveal melanoma: a multicenter, retrospective study. Melanoma Res. 2021 Oct 1;31(5):449-455. doi: 10.1097/CMR.0000000000000744.
• Özyurt E, Özçelik S, Sürmeli H, Çelik M, Ayhan M, Özçelik M. Side effects of immune-checkpoint inhibitors: Can multiple side effects be seen in a patient? J Oncol Pharm Pract. 2022 Mar;28(2):462-465. doi: 10.1177/10781552211038136.
• Dülgar Ö, Öven BB, Atcı MM, Arıkan R, Ay S, Ayhan M, Selvi O, Ozyukseler DT, Bayram E, Özcan E, Yasin Aİ, Gümüş M. Is the benefit of using adjuvant capecitabine in patients with residual triple-negative breast cancer related to pathological response to neoadjuvant chemotherapy? Expert Rev Anticancer Ther. 2022 Jul;22(7):773-780. doi: 10.1080/14737140.2022.2076670.
• Hizal M, Bilgin B, Paksoy N, Ayhan M, et all. The real-life efficacy and safety of osimertinib in pretreated advanced non-small cell lung cancer patients with T790M mutation: a Turkish Oncology Group Study. J Cancer Res Clin Oncol. 2022 Jun;148(6):1501-1508. doi: 10.1007/s00432-021-03748-7.
• Volume I, Kucukarda A, Atcı MM, Ayhan M, et all. Efficacy and safety of trastuzumab emtansine in older patients with HER2-positive advanced breast cancer: a real-world study. Tumori. 2022 Feb;108(1):19-25. doi: 10.1177/03008916211037739.
• Dogan I, Ayhan M, Gurbuz M, et all. The frequency and prognostic significance of ABO/Rh blood groups in male breast cancer patients: A multicenter study. Medicine (Baltimore). 2022 Sep 2;101(35):e30147. doi: 10.1097/MD.0000000000030147.
• Ozcelik M, Oyman A, Cil I, Duzgun O, Ozkan OF, Ayhan M. Cytoreductive Surgery versus Systemic Chemotherapy alone in Isolated Peritoneal Carcinomatosis of Colorectal Origin. J Coll Physicians Surg Pak. 2021 Nov;31(11):1308-1313. doi: 10.29271/jcpsp.2021.11.1308.
• Başoğlu T, Sakin A, Erol C, Ayhan M, et all. Real life experienceof patients with locally advanced gastric and gastroesophageal junction adenocarcinoma treated with neoadjuvant chemotherapy: a Turkish oncology group study. J Chemother. 2022 May 17:1-8. doi: 10.1080/1120009X.2022.2073159.
• Özdemir Ö, Zengel B, Yildiz Y, Ayhan M, et all. The effectiveness and safety of neoadjuvant pertuzumab and trastuzumab in women with locally advanced, inflammatory, or early-stage human epidermal growth factor receptor 2-positive breast cancer: Turkish Oncology Group study. Anticancer Drugs. 2022 Aug 1;33(7):663-670. doi: 10.1097/CAD.0000000000001310.
• Hizal M, Bilgin B, Paksoy N, Ayhan M, et all. The percentage of ALK-positive cells and the efficacy of first-line alectinib in advanced non-small cell lung cancer: is it a novel factor for stratification? (Turkish Oncology Group Study). J Cancer Res Clin Oncol. 2022 Sep 1. doi: 10.1007/s00432-022-04252-2.
• Hizal M, Bilgin B, Paksoy N, Ayhan M, et all. Real-world data on efficacy and safety of first-line alectinib treatment in advanced-stage, ALK-positive non-small-cell lung cancer patients: a Turkish Oncology Group study. Future Oncol. 2022 Jul;18(23):2573-2582. doi: 10.2217/fon-2022-0083.
• Topcu A, Atci MM, Secmeler S, Besiroglu M, Ayhan M, Ozkan M, Bozkurt O, Urakci Z, Ay S, Geredeli C, Yasin AI, Turk HM. Efficacy of trastuzumab and potential risk factors on survival in patients with HER2-positive metastatic gastric cancer. Future Oncol. 2021 Nov;17(31):4157-4169. doi: 10.2217/fon-2021-0398.
• Bilgin B, Sendur MAN, Yucel S, Ayhan M, et all. Real-life comparison of the afatinib and first-generation tyrosine kinase inhibitors in nonsmall cell lung cancer harboring EGFR exon 19 deletion: a Turk Oncology Group (TOG) study. J Cancer Res Clin Oncol. 2021 Jul;147(7):2145-2152. doi: 10.1007/s00432-020-03501-6.
• Atci MM, Akagunduz B, Demir M, Arikan R, Ay S, Ozer M, Ayhan M, Cil I, Demir N, Ozyurt N, Karakaya G, Cevik GT, Onder AH, Selvi O, Sakin A. The impact of adjuvant oxaliplatin and tumor sidedness on the overall survival of stage IIB colon cancer patients: a multicentre study. J Chemother. 2023 Feb;35(1):19-28. doi: 10.1080/1120009X.2022.2040770.
• Tataroglu Ozyukseler D, Ay S, Turan M, Alkan G, Ayhan M, Surmeli H, et al. The Systemic Inflammation Response Index as a Prognostic Marker in Advanced Pancreatic Cancer. EJMI 2022;6(3):367–373.
• Yıldız F, Ayhan M, Demir H, et all. Comparing the efficacy of cabazitaxel in secondline and third-Line treatment of metastatic castration-resistant prostate cancer: a multi-center experience from Turkey. International Journal of Contemporary Medical Research, 7(9), 112-116.,Doi: 10.21276/ijcmr.2020.7.9.30
• Terzioğlu K, Ayhan M. Distribution of allergens detected on patch tests of patients with allergic contact dermatitis and investigation of their atopic background. Annals of Medical Research, 29(5), 422-426., doi: 10.5455/annalsmedres.2021.07.490
• Arikan R, Atci MM, Ay S, Ayhan M, et all Prognostic significance of mucinous histology in left sided metastatic colorectal cancers with wild type RAS and evaluation of backbone chemotherapy regimens. Oncol Lett. 2023 Apr 5;25(5):208. doi: 10.3892/ol.2023.13795.
• Almuradova E, Yalcin S, Arıkan R, Ayhan M, Demir H, Cevik GT, Karaca M, Petekkaya I, Karabulut B. Survival of Patients With Metastatic Rectum Cancer Who Underwent Metastasectomy Following Conversion Chemotherapy Sans Pelvic Radiotherapy: A Turkish Oncology Group Study. Cureus 2023 May 17;15(5):e39119. doi: 10.7759/cureus.39119.
• Topcu A, Besiroglu M, Atci MM, Ayhan M, et all. Second-line Therapy after Trastuzumab Failure in HER2-Positive Metastatic Gastric Cancer: A Real-life Data. EJMI 2023;7(2):153–161. DOI: 10.14744/ejmi.2023.22720
• Book Writing:
• Drug interactions and side effects of targeted agents, Section name: (Small molecule tyrosine kinase inhibitors; ROS-1 targeted therapies (Crizotinib, Seritinib)) (2021)., AYHAN MURAT, Turkish Clinics Journal of Medical Sciences, Editor: Mehmet Aliustaoglu, Publishing number:1, Number of Pages 92, ISBN:978-625-401- 466-6, Turkish
• Approach to gastrointestinal stromal tumors and neuroendocrine tumors, Department name: (Medical approach in primary non-gastrointestinal neuroendocrine tumors) (2020)., AYHAN MURAT, Akademisyen Yayınevi, Editor: Anılır Ender, Number of editions: 1, Number of Pages 382, ISBN: 9786052585719, Turkish
• Internal medicine emergencies, Department name: (Oncological emergencies) (2022)., YILDIRIM SEDAT, AYHAN MURAT, Efe Academic Publishing, Editor: Serdar Olt, Number of editions: 1, Number of Pages 232, ISBN: 978-625-8324-66- 2, Turkish
• Physicians' chemotherapy cancer drug manual 2020, Section name: (Common chemotherapy regimens in clinical practice) (2022)., SÜMBÜL AHMET TANER, ALKAN ALI, AKSOY ASUDE, AYHAN MURAT, et all, Türkiye Klinikleri Journal of Medical Sciences, Editor: EDWAR CHU, VINCENT T. DEVITA, SAADDETIN KILIÇKAP, CEMIL BILIR, SELÇUK SEBER, Number of editions: 1, Number of pages 772, ISBN: 978-625-401-290- 7, Turkish (Book Translation)