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K. Tzannis · SciRah

Researcher profile · Semantic Scholar

K. Tzannis

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K. Tzannis — researcher profile on SciRah

h-index: 17
Works: 62
Citations: 780

Most-cited papers

Current Clinical Practice Guidelines for the Treatment of Renal Cell Carcinoma: A Systematic Review and Critical Evaluation.
A. Bamias, B. Escudier, C. Sternberg, F. Zagouri +10 more
2017The Oncologist75 citations Open access
Semantic Scholar
JQ1 inhibits tumour growth in combination with cisplatin and suppresses JAK/STAT signalling pathway in ovarian cancer.
T. Bagratuni, N. Mavrianou, N. Gavalas, K. Tzannis +10 more
2020European Journal of Cancer63 citations
Semantic Scholar
Demographic and clinical features of critically ill patients with COVID-19 in Greece: The burden of diabetes and obesity
P. Halvatsiotis, A. Kotanidou, K. Tzannis, E. Jahaj +20 more
2020Diabetes Research and Clinical Practice62 citations Open access
Semantic Scholar
Impact of contemporary patterns of chemotherapy utilization on survival in patients with advanced cancer of the urinary tract: a Retrospective International Study of Invasive/Advanced Cancer of the Urothelium (RISC).
A. Bamias, K. Tzannis, L. Harshman, S. Crabb +18 more
2019Annals of Oncology60 citations Open access
Semantic Scholar
Prevalence of psoriatic arthritis and its correlates among patients with psoriasis in Greece: results from a large retrospective study
E. Papadavid, P. Katsimbri, I. Kapniari, D. Koumaki +5 more
2016Journal of the European Academy of Dermatology and Venereology55 citations
Semantic Scholar
Prognostic significance of cytoreductive nephrectomy in patients with synchronous metastases from renal cell carcinoma treated with first-line sunitinib: a European multiinstitutional study.
A. Bamias, K. Tzannis, A. Papatsoris, S. Oudard +12 more
2014Clinical Genitourinary Cancer45 citations
Semantic Scholar
Epidemiologic risk factors of basal cell carcinoma development and age at onset in a Southern European population from Greece
C. Dessinioti, K. Tzannis, V. Sypsa, V. Nikolaou +4 more
2011Experimental Dermatology43 citations Open access
Semantic Scholar
The Development of an Angiogenic Protein “Signature” in Ovarian Cancer Ascites as a Tool for Biologic and Prognostic Profiling
S. Trachana, E. Pilalis, N. Gavalas, K. Tzannis +13 more
2016PLoS ONE27 citations Open access
Semantic Scholar
Development and validation of a prognostic model in patients with metastatic renal cell carcinoma treated with sunitinib: a European collaboration
A. Bamias, K. Tzannis, B. Beuselinck, S. Oudard +12 more
2013British Journal of Cancer26 citations Open access
Semantic Scholar
New prognostic model in patients with advanced urothelial carcinoma treated with second-line immune checkpoint inhibitors
A. Bamias, A. Merseburger, Y. Loriot, N. James +9 more
2023Journal for ImmunoTherapy of Cancer24 citations Open access
Semantic Scholar
Fungal Infections in the ICU during the COVID-19 Era: Descriptive and Comparative Analysis of 178 Patients
E. Koukaki, Nikoletta Rovina, K. Tzannis, Z. Sotiropoulou +3 more
2022Journal of Fungi22 citations Open access
Semantic Scholar
Impact of contemporary patterns of chemotherapy utilization on survival in patients with advanced cancer of the urinary tract: a Retrospective International Study of Invasive/Advanced Cancer of the Urothelium (RISC)
A. Bamias, K. Tzannis, L. Harshman, S. Crabb +18 more
2018Annals of Oncology22 citations Open access
Semantic Scholar
Treatment of relapsed urothelial bladder cancer with vinflunine: real-world evidence by the Hellenic Genitourinary Cancer Group
N. Pistamaltzian, K. Tzannis, Vassiliki Pissanidou, S. Peroukidis +18 more
2015Anti-Cancer Drugs22 citations Open access
Semantic Scholar
Current clinical practice guidelines on chemotherapy and radiotherapy for the treatment of non-metastatic muscle-invasive urothelial cancer: a systematic review and critical evaluation by the Hellenic Genito-Urinary Cancer Group (HGUCG).
F. Zagouri, S. Peroukidis, K. Tzannis, V. Kouloulias +1 more
2015Critical reviews in oncology/hematology20 citations
Semantic Scholar
Expression and prognostic significance of VEGF and mTOR pathway proteins in metastatic renal cell carcinoma patients: a prognostic immunohistochemical profile for kidney cancer patients
M. Liontos, E. Trigka, P. Korkolopoulou, K. Tzannis +20 more
2017World journal of urology18 citations
Semantic Scholar
Mediterranean diet and exercise are associated with better disease control in psoriatic arthritis
P. Katsimbri, A. Grivas, Evangelia Papadavid, K. Tzannis +6 more
2024Clinical Rheumatology17 citations
Semantic Scholar
Comparative evaluation of the performance of the Abbott RealTime HIV-1 assay for measurement of HIV-1 plasma viral load on genetically diverse samples from Greece
A. Katsoulidou, C. Rokka, C. Issaris, C. Haida +5 more
2011Virology Journal17 citations Open access
Semantic Scholar
Acute Kidney Injury Predictors and Outcomes after Cardiac Surgery in Children with Congenital Heart Disease: An Observational Cohort Study
Georgios Kourelis, M. Kanakis, G. Samanidis, K. Tzannis +11 more
2022Diagnostics14 citations Open access
Semantic Scholar
The Impact of Cisplatin- or Non-Cisplatin-Containing Chemotherapy on Long-Term and Conditional Survival of Patients with Advanced Urinary Tract Cancer.
A. Bamias, K. Tzannis, C. Bamia, L. Harshman +18 more
2019The Oncologist12 citations Open access
Semantic Scholar
Intravesical Administration of Durvalumab for High-risk Non-muscle-invasive Bladder Cancer: A Phase 2 Study by the Hellenic GU Cancer Group.
C. Fragkoulis, A. Bamias, N. Gavalas, K. Tzannis +13 more
2025European Urology10 citations
Semantic Scholar
SAUL, a single-arm study of atezolizumab for chemotherapy-pretreated locally advanced or metastatic carcinoma of the urinary tract: outcomes by key baseline factors, PD-L1 expression and prior platinum therapy
A. Bamias, A. Merseburger, Y. Loriot, Nicholas D. James +9 more
2021ESMO Open10 citations Open access
Semantic Scholar
Lymphocytic infiltration and Chemotherapy Response Score as prognostic markers in ovarian cancer patients treated with Neoadjuvant chemotherapy.
M. Liontos, M. Sotiropoulou, M. Kaparelou, K. Tzannis +11 more
2020Gynecologic Oncology9 citations
Semantic Scholar
Management of stent-related symptoms with the use of α-blockers: A meta-analysis
K. Deliveliotis, A. Papatsoris, A. Skolarikos, I. Mitsogiannis +2 more
2019Arab Journal of Urology9 citations Open access
Semantic Scholar
Vinflunine in the treatment of relapsed metastatic urothelial cancer: A systematic review and meta-analysis of real-world series.
A. Bamias, A. Hegele, J. Medioni, D. Castellano +6 more
2019Critical reviews in oncology/hematology8 citations Open access
Semantic Scholar
Utilization of Systemic Chemotherapy in Advanced Urothelial Cancer: A Retrospective Collaborative Study by the Hellenic Genitourinary Cancer Group (HGUCG).
A. Bamias, S. Peroukidis, Sophia Stamatopoulou, K. Tzannis +16 more
2016Clinical Genitourinary Cancer7 citations
Semantic Scholar
Two cycles of adjuvant carboplatin in stage I seminoma: 8-year experience by the Hellenic Cooperative Oncology Group (HECOG)
K. Koutsoukos, K. Tzannis, C. Christodoulou, V. Karavasilis +6 more
2016World journal of urology7 citations
Semantic Scholar
1961O Nivolumab plus chemoradiotherapy in patients with non-metastatic muscle-invasive bladder cancer (nmMIBC), not undergoing cystectomy: A phase II, randomized study by the Hellenic GU Cancer Group
A. Kougioumtzopoulou, K. Koutsoukos, R. Zakopoulou, K. Tzannis +16 more
2024Annals of Oncology6 citations
Semantic Scholar
Clinical presentation and outcomes of chronic dialysis patients with COVID-19: A single center experience from Greece
D. Bacharaki, Minas Karagiannis, Aggeliki Sardeli, Panagiotis N Giannakopoulos +10 more
2022World Journal of Nephrology6 citations Open access
Semantic Scholar
Expression of γ-tubulin in non-small cell lung cancer and effect on patient survival.
N. Maounis, E. Dráberová, N. Trakas, M. Chorti +10 more
2019Histology and Histopathology6 citations
Semantic Scholar
The combination of bevacizumab/temsirolimus after first-line anti-VEGF therapy in advanced renal-cell carcinoma: a clinical and biomarker study
A. Bamias, V. Karavasilis, N. Gavalas, K. Tzannis +9 more
2018International Journal of Clinical Oncology6 citations
Semantic Scholar
Real-world experience of everolimus as second-line treatment in metastatic renal cell cancer after failure of pazopanib
K. Koutsoukos, A. Bamias, K. Tzannis, Marta Espinosa Montaño +6 more
2017OncoTargets and Therapy6 citations Open access
Semantic Scholar
Outcome of patients with nonmetastatic muscle‐invasive bladder cancer not undergoing cystectomy after treatment with noncisplatin‐based chemotherapy and/or radiotherapy: a retrospective analysis
A. Bamias, Petros K Tsantoulis, T. Zilli, A. Papatsoris +14 more
2016Cancer Medicine6 citations Open access
Semantic Scholar
Lower serum magnesium is a predictor of left ventricular hypertrophy in patients on dialysis
O. Balafa, E. Dounousi, I. Giannikouris, I. Petrakis +10 more
2022International Urology and Nephrology5 citations
Semantic Scholar
Risk for Venous Thromboembolic Events in Patients With Advanced Urinary Tract Cancer Treated With First-Line Chemotherapy.
A. Bamias, K. Tzannis, I. Dimitriadis, G. Tsironis +21 more
2020Clinical Genitourinary Cancer5 citations
Semantic Scholar
Intravesical administration of durvalumab to patients with high risk non muscle invasive bladder cancer after BCG failure. A phase II trial by the Hellenic GU Cancer Group
C. Fragkoulis, E. Fragkiadis, M. Sakellakis, A. Pinitas +15 more
2023European Urology4 citations
Semantic Scholar
Risk for Arterial Thromboembolic Events (ATEs) in Patients with Advanced Urinary Tract Cancer (aUTC) Treated with First-Line Chemotherapy: Single-Center, Observational Study
A. Bamias, K. Tzannis, R. Zakopoulou, M. Sakellakis +26 more
2022Current Oncology4 citations Open access
Semantic Scholar
Adherence to cisplatin-based regimens prescription in "fit" patients fulfilling platinum eligibility criteria. Impact on outcomes: a retrospective international study of invasive/advanced cancer of the urothelium (RISC) analysis
A. Bamias, K. Tzannis, M. Liontos, S. Crabb +15 more
20164 citations Open access
Semantic Scholar
Patterns of chemotherapy utilization in metastatic urothelial cancer (mUC): analysis from the retrospective international study of invasive/advanced cancer of the urothelium (RISC) database
A. Bamias, K. Tzannis, M. Liontos, L. Harshman +15 more
20163 citations Open access
Semantic Scholar
Ferritin levels in critically ill patients with COVID-19: A marker of outcome?
G. Dimopoulos, A. Sakelliou, A. Flevari, K. Tzannis +1 more
2021Pneumon2 citations Open access
Semantic Scholar
Referral for “Neoadjuvant Chemotherapy” for Muscle-Invasive Bladder Cancer to a Multidisciplinary Board: Patterns, Management and Outcomes
A. Dellis, R. Zakopoulou, Andromahi Kougioumtzopoulou, K. Tzannis +16 more
2021Cancer Management and Research2 citations Open access
Semantic Scholar
Everolimus as second-line treatment in metastatic renal cell carcinoma (mRCC) after first-line pazopanib (The RESCUE study): A retrospective analysis by the Hellenic GU Cancer Group (HGUCG) with international collaboration.
K. Koutsoukos, M. Montano, L. Kontovinis, K. Tzannis +11 more
20152 citations
Semantic Scholar
Comprehensive 3DCRT Hypofractionated Radiotherapy Schedule for Localized Prostate Adenocarcinoma in the Era of IMRT: Dosimetric and Endoscopic Analysis
Andromahi Kougioumtzopoulou, Nick Syrigos, A. Zygogianni, I. Georgakopoulos +6 more
2024Cancers1 citations Open access
Semantic Scholar
77P The impact of COVID-19 on gynecological cancer diagnoses in Greece
O. Fiste, P. Iliopoulou, K. Tzannis, C. Theofanakis +16 more
2023ESMO Open1 citations Open access
Semantic Scholar
Outcomes from treatment of metastatic renal-cell carcinoma following failure of first-line anti-VEGF/VEGFR therapy: real-life evidence on the change of the treatment paradigm
A. Bamias, R. Zakopoulou, K. Tzannis, M. Sakellakis +12 more
2022Anti-Cancer Drugs1 citations
Semantic Scholar
ERCC1 19007 Polymorphism in Greek Patients with Advanced Urothelial Cancer Treated with Platinum-Based Chemotherapy: Effect of the Changing Treatment Paradigm: A Cohort Study by the Hellenic GU Cancer Group
A. Bamias, K. Koutsoukos, N. Gavalas, R. Zakopoulou +19 more
2021Current Oncology1 citations Open access
Semantic Scholar
AB0788 GENDER DIFFERENCES IN PSORIATIC ARTHRITIS DISEASE CHARACTERISTICS: EVIDENCE FOR WORSE DISEASE IN WOMEN.
A. Grivas, I. Kapniari, K. Tzannis, D. Tseronis +9 more
2020Annals of the Rheumatic Diseases1 citations Open access
Semantic Scholar
A run-in phase clinical study for intravesical administration of durvalumab in patients with high-risk, non-muscle-invasive bladder cancer (NMIBC)
A. Papatsoris, C. Fragkoulis, E. Fragkiadis, A. Pinitas +9 more
20201 citations Open access
Semantic Scholar
Patterns of practice and pharmacoeconomic analysis of the management of patients with metastatic renal cell carcinoma (mRCC) in Greece––the CRISIS study. A retrospective analysis by the Hellenic Genitourinary Cancer Group (HGUCG)
G. Tsironis, K. Koutsoukos, K. Athanasakis, A. Tsiara +19 more
2018Expert review of pharmacoeconomics & outcomes research1 citations
Semantic Scholar
866PImpact of cisplatin-based therapy on long-term survival in advanced urinary tract cancer (aUTC). A retrospective international study of invasive/advanced cancer of the urothelium (RISC)
A. Bamias, K. Tzannis, C. Bamia, L. Harshman +16 more
20171 citations Open access
Semantic Scholar
Cabozantinib After Immunotherapy in Advanced Renal Cell Carcinoma. The CARE Study by the Hellenic Gu Cancer Group
A. Bamias, Michael Liontos, I. Binas, D. Stefanou +16 more
2026Cancer Management and Research0 citations Open access
Semantic Scholar

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