Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system
ABSTRACT Purpose: To identify the factors increased fluoroscopy time during percutaneous nephrolithotomy and investigate the relationship between the 3D segmentation volume ratio of stone to renal collecting system and fluoroscopy time. Materials and Methods: Data from 102 patients who underwent p...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Urologia
2019-12-01
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| Series: | International Brazilian Journal of Urology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382019000601153&tlng=en |
| _version_ | 1798020253287972864 |
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| author | Sait Özbir Hasan Anil Atalay Halil Lütfi Canat Mehmet Gökhan Çulha Süleyman Sami Çakir Osman Can Alper Ötünçtemur |
| author_facet | Sait Özbir Hasan Anil Atalay Halil Lütfi Canat Mehmet Gökhan Çulha Süleyman Sami Çakir Osman Can Alper Ötünçtemur |
| author_sort | Sait Özbir |
| collection | DOAJ |
| description | ABSTRACT Purpose: To identify the factors increased fluoroscopy time during percutaneous nephrolithotomy and investigate the relationship between the 3D segmentation volume ratio of stone to renal collecting system and fluoroscopy time. Materials and Methods: Data from 102 patients who underwent percutaneous nephrolithotomy were analyzed retrospectively. Volume segmentation of both the renal collecting system and stones were obtained from 3D segmentation software with the images on CT data. Analyzed stone volume (ASV), renal collecting system volume (RCSV) measured and the ASV-to-RCSV ratio was calculated. Several parameters were evaluated for their predictive ability with regard to fluoroscopy time. Results: The stone-free rate was 55.9% after the percutaneous nephrolithotomy. Complications occurred in 31(30.4%) patients. The mean fluoroscopy time was 199.4±151.1 seconds. The fluoroscopy time was significantly associated with the ASV-to-RCSV ratio (p<0.001, r=0.614). The single tract was used in 77 (75.5%) cases while multiple tracts were used in 25 (24.5%) cases. Fluoroscopy time was significantly associated with multiple access (p<0.001, r=0.689). On univariate linear regression analysis, longer fluoroscopy time was related with increased stone size, increased stone volume, increased number of access, increased calyx number with stone, increased ASV-to-RCSV, increased operative time and decreased stone essence. On multivariate linear regression analysis, the number of access and the ASV-to-RCSV were independent predictors of fluoroscopy time during percutaneous nephrolithotomy. Conclusions: The distribution of the stone burden volume in the pelvicalyceal system is a significant predictor for prolonged fluoroscopy time during percutaneous nephrolithotomy. Measures to decrease FT could be beneficial in patients with a high ASV-to-RCSV ratio for precise preoperative planning. |
| first_indexed | 2024-04-11T16:54:15Z |
| format | Article |
| id | doaj.art-757d564e415248a99bb68d3a91d14b81 |
| institution | Directory Open Access Journal |
| issn | 1677-6119 |
| language | English |
| last_indexed | 2024-04-11T16:54:15Z |
| publishDate | 2019-12-01 |
| publisher | Sociedade Brasileira de Urologia |
| record_format | Article |
| series | International Brazilian Journal of Urology |
| spelling | doaj.art-757d564e415248a99bb68d3a91d14b812022-12-22T04:13:19ZengSociedade Brasileira de UrologiaInternational Brazilian Journal of Urology1677-61192019-12-014561153116010.1590/s1677-5538.ibju.2019.0111Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting systemSait Özbirhttps://orcid.org/0000-0002-9300-6860Hasan Anil AtalayHalil Lütfi CanatMehmet Gökhan ÇulhaSüleyman Sami ÇakirOsman CanAlper ÖtünçtemurABSTRACT Purpose: To identify the factors increased fluoroscopy time during percutaneous nephrolithotomy and investigate the relationship between the 3D segmentation volume ratio of stone to renal collecting system and fluoroscopy time. Materials and Methods: Data from 102 patients who underwent percutaneous nephrolithotomy were analyzed retrospectively. Volume segmentation of both the renal collecting system and stones were obtained from 3D segmentation software with the images on CT data. Analyzed stone volume (ASV), renal collecting system volume (RCSV) measured and the ASV-to-RCSV ratio was calculated. Several parameters were evaluated for their predictive ability with regard to fluoroscopy time. Results: The stone-free rate was 55.9% after the percutaneous nephrolithotomy. Complications occurred in 31(30.4%) patients. The mean fluoroscopy time was 199.4±151.1 seconds. The fluoroscopy time was significantly associated with the ASV-to-RCSV ratio (p<0.001, r=0.614). The single tract was used in 77 (75.5%) cases while multiple tracts were used in 25 (24.5%) cases. Fluoroscopy time was significantly associated with multiple access (p<0.001, r=0.689). On univariate linear regression analysis, longer fluoroscopy time was related with increased stone size, increased stone volume, increased number of access, increased calyx number with stone, increased ASV-to-RCSV, increased operative time and decreased stone essence. On multivariate linear regression analysis, the number of access and the ASV-to-RCSV were independent predictors of fluoroscopy time during percutaneous nephrolithotomy. Conclusions: The distribution of the stone burden volume in the pelvicalyceal system is a significant predictor for prolonged fluoroscopy time during percutaneous nephrolithotomy. Measures to decrease FT could be beneficial in patients with a high ASV-to-RCSV ratio for precise preoperative planning.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382019000601153&tlng=enFluoroscopyNephrolithotomy, PercutaneousCakut [Supplementary Concept] |
| spellingShingle | Sait Özbir Hasan Anil Atalay Halil Lütfi Canat Mehmet Gökhan Çulha Süleyman Sami Çakir Osman Can Alper Ötünçtemur Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system International Brazilian Journal of Urology Fluoroscopy Nephrolithotomy, Percutaneous Cakut [Supplementary Concept] |
| title | Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system |
| title_full | Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system |
| title_fullStr | Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system |
| title_full_unstemmed | Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system |
| title_short | Factors affecting fluoroscopy time during percutaneous nephrolithotomy: Impact of stone volume distribution in renal collecting system |
| title_sort | factors affecting fluoroscopy time during percutaneous nephrolithotomy impact of stone volume distribution in renal collecting system |
| topic | Fluoroscopy Nephrolithotomy, Percutaneous Cakut [Supplementary Concept] |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382019000601153&tlng=en |
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