Orhan Koca

668 total citations
72 papers, 435 citations indexed

About

Orhan Koca is a scholar working on Urology, Surgery and Rheumatology. According to data from OpenAlex, Orhan Koca has authored 72 papers receiving a total of 435 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Urology, 25 papers in Surgery and 24 papers in Rheumatology. Recurrent topics in Orhan Koca's work include Urinary Bladder and Prostate Research (17 papers), Pelvic floor disorders treatments (13 papers) and Urological Disorders and Treatments (13 papers). Orhan Koca is often cited by papers focused on Urinary Bladder and Prostate Research (17 papers), Pelvic floor disorders treatments (13 papers) and Urological Disorders and Treatments (13 papers). Orhan Koca collaborates with scholars based in Türkiye, United States and Australia. Orhan Koca's co-authors include Muhammet İhsan Karaman, Metin İshak Öztürk, Mustafa Güneş, Muzaffer Oğuz Keleş, Cevdet Kaya, Ferıha Ercan, Ahmet Ürkmez, Ramazan Topaktaş, Meral Karaman and Gamze Kılıçoğlu and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and The Journal of Urology.

In The Last Decade

Orhan Koca

66 papers receiving 416 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Orhan Koca Türkiye 12 182 137 115 103 67 72 435
Metin İshak Öztürk Türkiye 11 236 1.3× 148 1.1× 121 1.1× 113 1.1× 27 0.4× 56 384
A. Kéfi Türkiye 13 95 0.5× 73 0.5× 131 1.1× 111 1.1× 62 0.9× 30 325
Mehmet Gülüm Türkiye 12 127 0.7× 131 1.0× 47 0.4× 124 1.2× 115 1.7× 29 397
Atilla Semerciöz Türkiye 13 130 0.7× 71 0.5× 105 0.9× 159 1.5× 99 1.5× 54 544
Sang Kon Lee South Korea 10 116 0.6× 66 0.5× 114 1.0× 51 0.5× 76 1.1× 32 360
Barış Nuhoğlu Türkiye 11 205 1.1× 105 0.8× 80 0.7× 112 1.1× 42 0.6× 30 312
Giovanni La Croce Italy 14 110 0.6× 54 0.4× 145 1.3× 189 1.8× 87 1.3× 50 515
Şeref Başal Türkiye 13 90 0.5× 90 0.7× 61 0.5× 194 1.9× 80 1.2× 44 421
Çağrı Akın Şekerci Türkiye 10 148 0.8× 99 0.7× 38 0.3× 63 0.6× 22 0.3× 52 280
F. Rolo Portugal 10 98 0.5× 56 0.4× 99 0.9× 89 0.9× 103 1.5× 21 355

Countries citing papers authored by Orhan Koca

Since Specialization
Citations

This map shows the geographic impact of Orhan Koca's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Orhan Koca with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Orhan Koca more than expected).

Fields of papers citing papers by Orhan Koca

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Orhan Koca. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Orhan Koca. The network helps show where Orhan Koca may publish in the future.

Co-authorship network of co-authors of Orhan Koca

This figure shows the co-authorship network connecting the top 25 collaborators of Orhan Koca. A scholar is included among the top collaborators of Orhan Koca based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Orhan Koca. Orhan Koca is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Karaman, Muhammet İhsan, et al.. (2025). Interim Results of Rigicon Penile Prosthesis Implantation in a Single Center: The Largest Series in Türkiye. Urology Research and Practice. 50(4). 234–239.
2.
Wilson, Steven K., et al.. (2024). Short-term revision rate of Rigicon Testi10TM testicular prosthesis in adolescents and adults: a retrospective chart review. International Journal of Impotence Research. 37(4). 303–309. 1 indexed citations
3.
Koca, Orhan, et al.. (2024). Rigicon ContiClassic and ContiReflex artificial urinary sphincter devices. Translational Andrology and Urology. 13(8). 1762–1766. 1 indexed citations
4.
Koca, Orhan, et al.. (2018). Characteristics of the urethroplasty and our approach-Experience in patients with urethral stricture. SHILAP Revista de lepidopterología. 45(4). 307–311. 6 indexed citations
5.
Öztürk, Metin İshak, et al.. (2018). Evaluation of germ-cell neoplasia in situ entity in testicular tumors. SHILAP Revista de lepidopterología. 45(6). 418–422. 3 indexed citations
6.
Koca, Orhan, et al.. (2015). Clinical significance of single microscopic focus of adenocarcinoma at prostate biopsy. Prostate International. 3(4). 132–134. 4 indexed citations
7.
Öztürk, Metin İshak, et al.. (2014). Predictive values for extracapsular extension in prostate cancer patients with PSA values below 10 ng/mL. SHILAP Revista de lepidopterología. 40(3). 130–133. 3 indexed citations
8.
Güneş, Mustafa, et al.. (2014). Evaluation of intraoral complications of buccal mucosa graft in augmentation urethroplasty. SHILAP Revista de lepidopterología. 40(3). 156–160. 11 indexed citations
9.
Karaman, Muhammet İhsan, et al.. (2014). The use of primary and secondary doxazosin XL (8 mg) in the treatment of benign prostate hyperplasia: Is there a new approach in the event of alpha-blocker failure?. SHILAP Revista de lepidopterología. 40(1). 35–39. 1 indexed citations
10.
Koca, Orhan, Muzaffer Oğuz Keleş, Cevdet Kaya, et al.. (2014). Plasmakinetic vaporization versus transurethral resection of the prostate: Six-year results. SHILAP Revista de lepidopterología. 40(3). 134–137. 10 indexed citations
11.
Karaman, Muhammet İhsan, et al.. (2014). The effects of electromagnetic waves emitted by the cell phones on the testicular tissue. Archivio Italiano di Urologia e Andrologia. 86(4). 274–274. 10 indexed citations
12.
Koca, Orhan, et al.. (2013). Effects of Intensive Cell Phone (Philips Genic 900) Use on the Rat Kidney Tissue. SHILAP Revista de lepidopterología. 10 indexed citations
13.
Koca, Orhan, et al.. (2013). The Impact of Unilateral Experimental Rat Varicocele Model on Testicular Histopathology, Leydig Cell Counts, and Intratesticular Testosterone Levels of Both Testes. SHILAP Revista de lepidopterología. 9 indexed citations
14.
Koca, Orhan, et al.. (2012). The effect of using a tourniquet during operation in patients with distal hypospadias on operation success. SHILAP Revista de lepidopterología. 37(4). 312–334. 1 indexed citations
15.
Güneş, Mustafa, et al.. (2012). Desmopressin in the treatment of nocturia with BPH. SHILAP Revista de lepidopterología. 38(1). 29–31. 6 indexed citations
16.
Koca, Orhan, et al.. (2012). Hormonal Evaluation in Premature Ejaculation. Urologia Internationalis. 88(4). 454–458. 15 indexed citations
17.
Gürbüz, Cenk, Metin İshak Öztürk, Orhan Koca, et al.. (2011). Böbrek taşı tedavisinde güncel durum: İstanbul’dan kesitsel bir tarama. 37(3). 252–256. 1 indexed citations
18.
Öztürk, Metin İshak, Cenk Gürbüz, Orhan Koca, et al.. (2010). Üreter taşı tanı ve tedavisinde güncel durum: İstanbul’dan kesitsel bir tarama. 36(2). 125–131. 1 indexed citations
19.
Öztürk, Metin İshak, et al.. (2008). Üroloji kliniklerinde görülen patojenlere karşı antimikrobiyal direncin güncel durumu. 34(3). 363–367. 3 indexed citations
20.
Chouard, C. H., et al.. (1995). Clinical results for the digisonic multichannel cochlear implant. The Laryngoscope. 105(5). 505–509. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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