Yazar "Nayman, A." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Rapid percutaneous nephrostomy catheter placement in neonates with the trocar technique
    (ELSEVIER MASSON, 2017) Ozbek, O.; Kaya, H. E.; Nayman, A.; Saritas, T. B.; Guler, I.; Koc, O.; Karakus, H.
    Purpose: The purpose of this study was to assess the efficacy of a modified percutaneous nephrostomy procedure for grade III-IV hydronephrosis in neonates. Material and methods: Eleven neonates (five girls, six boys) with a mean age of 13.7 days +/- 9.9 (SD) (range, 4-28 days) with pronounced hydronephrosis had percutaneous nephrostomy using a modified procedure. In all patients, percutaneous nephrostomy was performed with a trocar catheter under ultrasound guidance and then the catheter was placed into the collecting system without prior dilatation. Results: Technical success was achieved in all patients. There were no major procedure-related complications. There was no perirenal hematoma on control ultrasound examinations and no hematuria was observed after the procedure. The median drainage time was 75 days (range: 42-120 days). Two children had urinary tract infection, which was controlled by using antibiotics. Conclusion: The trocar nephrostomy is a practical and feasible method, which can be used for neonates with grade III-IV hydronephrosis. (C) 2016 Editions francaises de radiologie. Published by Elsevier Masson SAS. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Risk factors associated with recanalization of incompetent saphenous veins treated with radiofrequency ablation catheter
    (ELSEVIER MASSON, CORPORATION OFFICE, 2017) Nayman, A.; Yildiz, I.; Koca, N.; Deniz, S.; Koplay, M.; Oguzkurt, L.
    Purpose: The purpose of this study was to determine the occlusion rate of incompetent great saphenous veins (GSVs) and small saphenous veins (SSVs) treated with radiofrequency ablation (RFA) and individualize variables associated with recanalization. Materials and methods: A retrospective review of 311 veins (256 GSVs and 55 SSVs) in 211 patients [177 women, 34 men; mean age, 45 years +/- 12 (SD) (range: 18-75 years)] with incompetent GSVs and/or SSVs who were treated using new-generation RFA catheters was performed. The clinical results, occlusion rates, and variables associated with recanalization for the incompetent GSVs and SSVs were analyzed. Results: No major complications were observed in the study population. Ten months after RFA, the occlusion rate was 89% (227/256) for GSVs and 91% (50/55) for SSVs. An increased pre-procedure diameter of the incompetent GSVs was associated with a higher rate of recanalization (OR: 0.825; 95% CI: 0.715-0.952) (P < 0.05). No significant differences in age, gender, and side of treated veins were found between patients with recanalization of treated veins and those without recanalization. Conclusion: Our results show that pre-procedure diameter of the GSV is the single risk factor for recanalization after RFA. (C) 2016 Editions francaises de radiologie. Published by Elsevier Masson SAS. All rights reserved.