scholarly journals Same-day angiography and embolization in delayed hematuria following percutaneous nephrolithotomy: an effective, safe, and time-saving approach

2019 ◽  
Vol Volume 11 ◽  
pp. 83-89
Author(s):  
Joy Narayan Chakraborty ◽  
Pradeep Hatimota
2015 ◽  
Vol 9 (9-10) ◽  
pp. 594 ◽  
Author(s):  
Sitki Un ◽  
Volkan Cakir ◽  
Cengiz Kara ◽  
Hakan Turk ◽  
Osman Kose ◽  
...  

Introduction: Percutaneous nephrolithotomy (PCNL) is the primary surgical intervention in kidney stone management. Even though it is performed quite often, the complication rates are also high. Arteriovenous fistulas following extended hemorrhages after PCNL are one of the most serious complications of this operation. Our main objective was to review the data of patients who required angiography and embolization.Methods: In total, we included 1405 patients who underwent PCNL between 2007 and 2014. All patient data were retrospectively reviewed. All patients went under PCNL using fluoroscopy. Following informed consent, all hemorrhagic patients underwent angiography in the interventional radiology department and embolization was performed in patients with a hemorrhage focus point.Results: A total of 147 patients (10.4%) required transfusion for post- PCNL hemorrhages. Of them, 14 (0.99%) underwent angiography and embolization (9 [64.2%] were male and 5 [35.8%] were female, with a mean age of 39.4 ± 10.2). The remaining 133 patients were conservatively managed (81 [60.9%] males and 52 [39.1%] females, with a mean age of 42.3 ± 12.4). When the predicting factors for angiography and embolization were reviewed, renal abnormalities and the mean size of stones were significant in both univariate and multivariate analysis (p < 0.001).Conclusion: Patients with extended and intermittent hematuria should be monitored closely for hemodynamics; if there is an ongoing necessity for transfusion, angiography should be considered.


Author(s):  
B. Carragher ◽  
M. Whittaker

Techniques for three-dimensional reconstruction of macromolecular complexes from electron micrographs have been successfully used for many years. These include methods which take advantage of the natural symmetry properties of the structure (for example helical or icosahedral) as well as those that use single axis or other tilting geometries to reconstruct from a set of projection images. These techniques have traditionally relied on a very experienced operator to manually perform the often numerous and time consuming steps required to obtain the final reconstruction. While the guidance and oversight of an experienced and critical operator will always be an essential component of these techniques, recent advances in computer technology, microprocessor controlled microscopes and the availability of high quality CCD cameras have provided the means to automate many of the individual steps.During the acquisition of data automation provides benefits not only in terms of convenience and time saving but also in circumstances where manual procedures limit the quality of the final reconstruction.


1970 ◽  
Vol 102 (3) ◽  
pp. 300-303
Author(s):  
N. Hjorth
Keyword(s):  

2007 ◽  
Vol 177 (4S) ◽  
pp. 434-434
Author(s):  
Amy E. Krambeck ◽  
Andrew J. LeRoy ◽  
Audrey L. Rohlinger ◽  
David E. Patterson ◽  
Matthew T. Gettman

2007 ◽  
Vol 177 (4S) ◽  
pp. 58-58
Author(s):  
Benjamin N. Breyer ◽  
Sean P. Elliott ◽  
Viraj A. Master ◽  
Jack W. McAninch

2006 ◽  
Vol 175 (4S) ◽  
pp. 548-548
Author(s):  
Xun Li ◽  
Guohua Zeng ◽  
Jian Yuan ◽  
Chichang Shan ◽  
Kaijun Wu ◽  
...  

1996 ◽  
Vol 4 (1) ◽  
pp. 93-104
Author(s):  
Rakesh Kapoor ◽  
Arvind Joshi ◽  
Arthur D. Smith

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