{"entity": "researcher", "timestamp": "2026-08-23T09:27:46.842Z", "family": "Yalcinkaya", "given": "Ali", "initials": "A", "orcid": "0000-0002-5427-8118", "affiliations": ["Department of General Surgery, Gazi University Faculty of Medicine, Emniyet Mahallesi, Mevlana Bulvar\u0131 No: 29 Yenimahalle, 06500, Ankara, Turkey.", "Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark."], "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/researcher/9464b73537ec4b8fb6e68830c4848c0c.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/researcher/9464b73537ec4b8fb6e68830c4848c0c"}}, "publications": [{"entity": "publication", "iuid": "fb6b09da2cf94fc3909b696829490ac1", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/fb6b09da2cf94fc3909b696829490ac1.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/fb6b09da2cf94fc3909b696829490ac1"}}, "title": "Investigating recurrence in pilonidal sinus disease: results of a nationwide, multicenter study in Turkey (PISI TURKEY).", "authors": [{"family": "Yalcinkaya", "given": "Ali", "initials": "A", "orcid": "0000-0002-5427-8118", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/9464b73537ec4b8fb6e68830c4848c0c.json"}}, {"family": "Yalcinkaya", "given": "Ahmet", "initials": "A", "orcid": "0000-0002-1172-3330", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/d69855f99eec4f31a547fce683b47c16.json"}}, {"family": "Sahin", "given": "Can", "initials": "C", "orcid": "0000-0003-3946-821X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/87d4bc087ab640299537dd3f882559f8.json"}}, {"family": "Balci", "given": "Bengi", "initials": "B", "orcid": "0000-0002-0630-5097", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/bcf5a555bd614bc9b2140a6bca1c6bae.json"}}, {"family": "Ozeller", "given": "Elif", "initials": "E", "orcid": "0000-0003-4105-2360", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/da5947bafc1c43f6a3fca8a06bb8d0a3.json"}}, {"family": "Ozturk", "given": "Ece", "initials": "E", "orcid": "0000-0001-6051-057X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6ad920542c4040bca4dac18f19b3ddd8.json"}}, {"family": "Kayacan", "given": "Gulsum Sueda", "initials": "GS", "orcid": "0000-0002-3298-7482", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/2575798c77dd41b087ce38cef3d398a3.json"}}, {"family": "Karaca", "given": "Berkay Enes", "initials": "BE", "orcid": "0000-0001-9906-3623", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/9ded973aa37645a8a38b6d3c74f88443.json"}}, {"family": "Oyanik", "given": "Ahmet Faruk", "initials": "AF", "orcid": "0000-0002-5103-8901", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/71b35246db6a4be494bd531b9504d76c.json"}}, {"family": "Yavuz", "given": "Aydin", "initials": "A", "orcid": "0000-0003-0091-7997", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/94651a12ab314ea6bf4c98170ee5901d.json"}}, {"family": "Kamer", "given": "Erdinc", "initials": "E", "orcid": "0000-0002-5084-5867", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/092a4961564f485781260f00f9137922.json"}}, {"family": "Leventoglu", "given": "Sezai", "initials": "S"}, {"family": "PISI TURKEY Study Collaboration", "given": "", "initials": ""}], "type": "journal article", "published": "2025-09-11", "journal": {"title": "Int J Colorectal Dis", "issn": "1432-1262", "volume": "40", "issue": "1", "pages": "194", "issn-l": null}, "abstract": "The purpose of this study is to investigate the recurrence rates for the treatment of pilonidal sinus disease (PSD) in Turkey and the factors associated with recurrence of PSD after surgery on a nationwide scale.\n\nThis national, multicenter, database review was conducted in Turkey by the PISI TURKEY Research Group, and included recipients of PSD surgery in 41 select hospitals in Turkey, between January 2019 and January 2020. Data were collected by completion of standardized data forms. Sociodemographic and anthropometric data, comorbidities, PSD type, previous PSD interventions, index PSD intervention, recurrence, and complications were collected from baseline to postoperative 12 months.\n\nThe data of 1662 patients from 41 centers were analyzed. The median age was 25 (21-32) years, and 80.26% of the cases were male. The recurrence rate following index operations was 6.26% in the 12-month period. Age (p = 0.594) and sex distribution (p = 0.441) were similar in patients with and without recurrence. The recurrent group had significantly higher frequencies of type V PSD (p < 0.001), wound site infection (p < 0.001), and wound separation (p < 0.001), whereas the non-recurrent group had a significantly higher frequency of type III PSD (p < 0.001). Multivariable logistic regression revealed that prior recurrence, postoperative wound site infection, and postoperative wound separation were independently associated with recurrence.\n\nThe recurrence rate after PSD surgery in Turkey was close to the lower ranges reported in prior literature. Turkish patients with a history of prior recurrence, postoperative wound site infection, or postoperative wound separation should be considered to have higher risks for recurrence.", "doi": "10.1007/s00384-025-04921-x", "pmid": "40931185", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC12423239"}, {"db": "pii", "key": "10.1007/s00384-025-04921-x"}], "notes": [], "created": "2026-08-21T11:06:31.339Z", "modified": "2026-08-21T11:06:31.754Z"}, {"entity": "publication", "iuid": "f5f9bd321292480bb4db946080e9a265", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/f5f9bd321292480bb4db946080e9a265.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/f5f9bd321292480bb4db946080e9a265"}}, "title": "Nationwide prospective audit for the evaluation of appendicitis risk prediction models in adults: right iliac fossa treatment (RIFT)-Turkey.", "authors": [{"family": "Yalcinkaya", "given": "Ali", "initials": "A", "orcid": "0000-0002-5427-8118", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/9464b73537ec4b8fb6e68830c4848c0c.json"}}, {"family": "Yalcinkaya", "given": "Ahmet", "initials": "A", "orcid": "0000-0002-1172-3330", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/d69855f99eec4f31a547fce683b47c16.json"}}, {"family": "Balci", "given": "Bengi", "initials": "B"}, {"family": "Keskin", "given": "Can", "initials": "C"}, {"family": "Erkan", "given": "Ibrahim", "initials": "I"}, {"family": "Yildiz", "given": "Alp", "initials": "A"}, {"family": "Kamer", "given": "Erdinc", "initials": "E"}, {"family": "Leventoglu", "given": "Sezai", "initials": "S"}, {"family": "RIFT TURKEY Study Collaboration", "given": "", "initials": ""}], "type": "journal article", "published": "2024-09-03", "journal": {"title": "BJS Open", "issn": "2474-9842", "volume": "8", "issue": "5", "issn-l": null}, "abstract": "Appendicitis is the most prevalent surgical emergency. The negative appendicectomy rate and diagnostic uncertainty are important concerns. This study aimed to assess the effectiveness of current appendicitis risk prediction models in patients with acute right iliac fossa pain.\n\nA nationwide prospective observational study was conducted, including all consecutive adult patients who presented with right iliac fossa pain. Diagnostic, clinical and negative appendicectomy rate data were recorded. The Alvarado score, Appendicitis Inflammatory Response (AIR), Raja Isteri Pengiran Anak Saleha Appendicitis (RIPASA) and Adult Appendicitis Score systems were calculated with collected data to classify patients into risk categories. Diagnostic value and categorization performance were evaluated, with use of risk category-based metrics including 'true positive rate' (percentage of appendicitis patients in the highest risk category), 'failure rate' (percentage of patients with appendicitis in the lowest risk category) and 'categorization resolution' (true positive rate/failure rate).\n\nA total of 3358 patients from 84 centres were included. Female patients were less likely to undergo surgery than men (71.5% versus 82.5% respectively; relative risk 0.866, 95% c.i. 0.834 to 0.901, P < 0.001); with a three-fold higher negative appendicectomy rate (11.3% versus 4.1% respectively; relative risk 2.744, 95% c.i. 2.047 to 3.677, P < 0.001). Ultrasonography was utilized in 56.8% and computed tomography in 75.2% of all patients. The Adult Appendicitis Score had the best diagnostic performance for the whole population; however, only RIPASA was significant in men. All scoring systems were successful in females patients, but Adult Appendicitis Score had the highest area under the receiver operating characteristic curve value. The RIPASA and the Adult Appendicitis Score had the best categorization resolution values, complemented by their exceedingly low failure rates in both male and female patients. Alvarado and AIR had extremely high failure rates in men.\n\nThe negative appendicectomy rate was low overall, but women had an almost three-fold higher negative appendicectomy rate despite lower likelihood to undergo surgery. The overuse of imaging tests, best exemplified by the 75.2% frequency of patients undergoing computed tomography, may lead to increased costs. Risk-scoring systems such as RIPASA and Adult Appendicitis Score appear to be superior to Alvarado and AIR.", "doi": "10.1093/bjsopen/zrae120", "pmid": "39383358", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC11463697"}, {"db": "pii", "key": "7816285"}], "notes": [], "created": "2026-08-21T12:07:31.123Z", "modified": "2026-08-21T12:07:31.179Z"}]}