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Özdemir Ü, Gündoğdu E, Yakar M, Canaz F, Ulaş M, Özer İ. Lateral lymph node involvement presents another challenge in rectum cancer in the age of neoadjuvant chemoradiotherapy + total mesorectal excision: an evaluation of survival outcomes. Langenbecks Arch Surg 2023; 408:356. [PMID: 37702958 DOI: 10.1007/s00423-023-03101-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023]
Abstract
PURPOSE In the last decades, total mesorectal excision (TME) and neoadjuvant chemoradiotherapy (nCRT) have produced an undeniable improvement in the treatment of rectal cancer. However, local recurrence is still an important problem, and the effect of lateral lymph node (LLN) involvement on local recurrence is a controversial issue. The aim of this study was to investigate the effects of LLN status on local recurrence and survival in rectal cancers treated with nCRT + TME. METHODS Clinical features, pre- and post-nCRT lateral pelvic region imaging, long-term local recurrence, and the survival outcomes of 114 patients who underwent nCRT + TME for rectal cancer were evaluated. RESULTS On MRI before nCRT, 20 (17.5%) patients had lateral lymph nodes (LLN+), and 94 (82.5%) patients had no lymph nodes in the lateral pelvic compartments (LLN-). Local recurrences at 1 year in LLN+ and LLN- patients were 3 (15.8%) and 2 (2.3%), respectively (p=0.039). Five-year local recurrence-free survival rates and the mean duration of recurrence-free survival in LLN+ and LLN- patients were 56.2%, 42.6 months, and 87.3% 66.9 months, respectively (p=0.001). Disease-free survival and overall survival were shorter in LLN+ patients, but the difference was not statistically significant (p=0.096 and p=0.46, respectively). In the multivariate analysis, LLN involvement was determined to be an independent risk factor for local recurrence-free survival (Hazard Ratio 4.54, p=0.003). CONCLUSION Lateral lymph node involvement causes local recurrence to remain high after nCRT + TME. LLN status should be considered in treatment planning. Further studies are needed to define precise criteria for LLN involvement and the effect of LLND on local recurrence and survival.
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Affiliation(s)
- Ümit Özdemir
- Department of General Surgery, Section of Gastroenterological Surgery, Ankara Etlik City Hospital, Ankara, Turkey.
| | - Elif Gündoğdu
- Department of Radiology, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Melek Yakar
- Department of Radiation Oncology, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Funda Canaz
- Department of Pathology, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Murat Ulaş
- Department of General Surgery, Section of Gastroenterological Surgery, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - İlter Özer
- Department of General Surgery, Section of Gastroenterological Surgery, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
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Özdemir Ü, Akin M, Sözen I, Erkent M, Tatar S, Yasti AÇ. Effects of hyperbaric oxygen therapy on clinical and economic outcomes in patients with deep second-degree burns. Undersea Hyperb Med 2023; 50:29-37. [PMID: 36820804 DOI: 10.22462/01.01.2023.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Deep second-degree burn injuries are the most challenging situations for the burn surgeon in the treatment of adult cases. While waiting for spontaneous closure increases the risk of hypertrophic scar and keloid, early excision and grafting pose the risk of donor site wound and permanent color differences. Unlike many studies in the literature, the current study was planned in a way to minimize factors other than burn wounds to investigate the effect of adding hyperbaric oxygen (HBO2) therapy to conventional treatment in deep second-degree burn wounds. MATERIAL AND METHODS This prospective observational study included patients with burn injuries who underwent conventional treatment alone and those who underwent conventional plus HBO2 treatment performed by a single experienced surgeon and who met the study criteria. RESULTS Thirty-eight patients completed the study. Mean burned total body surface area (TBSA) was. 9.22 ± 3 43% (range 5% to 20%). There was no difference between the two groups in terms of age, burned TBSA, and burn etiology. The need for surgery and grafting was lower in patients who received HBO2 in addition to conventional treatment (p=0.003 and p=0.03, respectively). The patients in the HBO2 group had a shorter hospital stay, and their wounds epithelialized in a shorter time (p=0.169 and p≺0.001, respectively). They also had a higher satisfaction level and lower treatment cost (p=0.03 and p=0.36, respectively). DISCUSSION The results of this prospective study, in which co-factors were eliminated, showed that adding HBO2 to the conventional treatment of deep second-degree burns had a significant positive effect on patient outcomes, as well as reducing treatment costs.
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Affiliation(s)
- Ümit Özdemir
- Eskişehir Osmangazi University, Department of Gastroenterological Surgery, Eskişehir, Turkey
| | - Merve Akin
- Ankara City Hospital, Department of General Surgery, Ankara, Turkey
| | - Isa Sözen
- Süleyman Demirel University, Department of General Surgery, Isparata, Turkey
| | - Murathan Erkent
- Baskent University, School Of Medicine, Department of General Surgery, Ankara, Turkey
| | - Selçuk Tatar
- Ankara Gaziler Physical Therapy and Rehabilitation Education and Research Hospital, Underwater Medicine and Hyperbaric Medicine
| | - Ahmet Çinar Yasti
- Health Sciences University, Department of General Surgery, Ankara City Hospital, Burn Treatment Center
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Özdemir Ü, Salış M, Özer İ, Ünal B. Perianal Paget’s Disease; Surgery and Non-surgical Interventions, Untreated Patient: a Report of Two Cases. Indian J Surg 2022. [DOI: 10.1007/s12262-022-03376-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Çelebi Ö, Özdemir Ü, Büyük F, Baca AÜ, Erpek ŞH, Karahan M, Otlu S, Şahin M, Coşkun MR, Çelik E, Sağlam AG, Büyük E, Akça D. Isolation of Mycoplasma spp. from Geese with Pneumonia and Identification of Microbial Isolates via Molecular Methods. Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Ü Özdemir
- Pendik Veterinary Control Institute, Turkey
| | | | | | - ŞH Erpek
- Pendik Veterinary Control Institute, Turkey
| | - M Karahan
- Pendik Veterinary Control Institute, Turkey
| | - S Otlu
- Kafkas University, Turkey
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- Kafkas University, Turkey
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Özdemir Ü, Türkyilmaz MA, Sayi O, Erpek SH, Nicholas RAJ. Survey of contagious caprine pleuropneumonia in goat herds in the Thrace region of Turkey. REV SCI TECH OIE 2019; 37:831-836. [PMID: 30964465 DOI: 10.20506/rst.37.3.2889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Contagious caprine pleuropneumonia (CCPP) was detected for the first time on the European continent in the Thrace region of Turkey in 2002 following outbreaks of an unusually severe respiratory disease in goats. Mycoplasma capricolums ubspecies capripneumoniae (Mccp), the causative agent, was identified in many infected herds throughout the region by serological, bacteriological and molecular biological techniques. However, as no quantitative data on the prevalence and distribution of the disease have been gathered in the intervening years, the extent of infection is unknown. Consequently, in 2014, a random sample of 2,400 goats was drawn from a population of over 167,000 goats in the region by multistage sampling. Serum samples were collected and tested by a monoclonal antibodybased competitive enzyme-linked immunosorbent assay (cELISA). The overall prevalence of CCPP in Thrace was found to be just over 8%. The prevalence in the individual provinces was approximately 18%, 7%, 8% and 6% for Çanakkale, Edirne, K?rklareli and Tekirda?, respectively, while Istanbul province appeared to be CCPP-free. The results showed that CCPP has spread throughout the region and has become endemic, and may pose a potential risk to the neighbouring countries of Greece and Bulgaria. Mccp was regularly detected from lung samples of suspect goats until 2015 but since then there has been no further detection from clinical samples.
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Özdemir Ü, Şentürk OS, Sert S, Karacan N, Uğur F. Reaction of metal carbonyls with 2-hydroxy-1-naphthaldeyde methanesulfonylhydrazone and characterization of the substitution products. J COORD CHEM 2007. [DOI: 10.1080/00958970600663880] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ü. Özdemir
- a Faculty of Science and Literature, Department of Chemistry , Gazi University , Teknikokullar, 06500, Ankara, Turkey
| | - O. S. Şentürk
- b Faculty of Science and Literature, Department of Chemistry , Technical University of Istanbul , TR-34469 Maslak, Istanbul, Turkey
| | - S. Sert
- c Faculty of Science, Department of Chemistry , Ege University , Bornova, 35100, İzmir, Turkey
| | - N. Karacan
- a Faculty of Science and Literature, Department of Chemistry , Gazi University , Teknikokullar, 06500, Ankara, Turkey
| | - F. Uğur
- c Faculty of Science, Department of Chemistry , Ege University , Bornova, 35100, İzmir, Turkey
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Sert S, Şentürk O, Özdemir Ü, Karacan N, Ug¯ur F. Synthesis and Characterization of the products from reaction of Metal Carbonyls [M(CO)6 (M Cr, Mo, W), Re(CO)5Br, Mn(CO)3Cp] with Salicylaldehyde Methanesulfonylhydrazone. J COORD CHEM 2006. [DOI: 10.1080/00958970410001666170] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S. Sert
- a Department of Chemistry , Faculty of Science, Ege University , Bornova, 35100, İzmir, Turkey
| | - O.S. Şentürk
- a Department of Chemistry , Faculty of Science, Ege University , Bornova, 35100, İzmir, Turkey
- c Steacie Institute for Molecular Sciences, National Research Council of Canada , 100 Sussex Drive, Ottawa, Ontario, Canada , K1A 0R6
| | - Ü. Özdemir
- b Department of Chemistry , Faculty of Science and Literature, Gazi University , Teknikokullar, 06500, Ankara, Turkey
| | - N. Karacan
- b Department of Chemistry , Faculty of Science and Literature, Gazi University , Teknikokullar, 06500, Ankara, Turkey
| | - F. Ug¯ur
- a Department of Chemistry , Faculty of Science, Ege University , Bornova, 35100, İzmir, Turkey
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