Impact of stone density on outcomes in percutaneous nephrolithotomy (PCNL): an analysis of the clinical research office of the endourological society (CROES) pcnl global study database

References

• Smith RC, Verga M, McCarthy S, Rosenfield AT. Diagnosis of acute flank pain: value of unenhanced helical CT. AJR Am J Roentgenol 1996;166:97–101.
   PubMed Web of Science ®Google Scholar
• Zagoria RJ. Retrospective view of “diagnosis of acute flank pain: value of unenhanced helical CT”. AJR Am J Roentgenol 2006;187:603–4.
   PubMed Web of Science ®Google Scholar
• Morris DS, Wei JT, Taub DA, Dunn RL, Wolf JS Jr, Hollenbeck BK. Temporal trends in the use of percutaneous nephrolithotomy. J Urol 2006;175:1731–6.
   PubMed Web of Science ®Google Scholar
• Miller NL, Lingeman JE. Management of kidney stones. BMJ 2007;334:468–72.
   PubMed Web of Science ®Google Scholar
• Hubert KC, Singh M, Zhou EH, Delos Santos G, Stovsky MD. Charlson comorbidity index and success of extracorporeal shock wave lithotripsy. Can J Urol 2009;16:4733–5.
   PubMed Web of Science ®Google Scholar
• Pareek G, Armenakas NA, Panagopoulos G, Bruno JJ, Fracchia JA. Extracorporeal shock wave lithotripsy success based on body mass index and Hounsfield units. Urology 2005;65:33–6.
   PubMed Web of Science ®Google Scholar
• Abdel-Khalek M, Sheir KZ, Mokhtar AA, Eraky I, Kenawy M, Bazeed M. Prediction of success rate after extracorporeal shock-wave lithotripsy of renal stones - a multivariate analysis model. Scand J Urol Nephrol 2004;38:161–7.
   PubMed Web of Science ®Google Scholar
• Al-Ansari A, As-Sadiq K, Al-Said S, Younis N, Jaleel OA, Shokeir AA. Prognostic factors of success of extracorporeal shock wave lithotripsy (ESWL) in the treatment of renal stones. Int Urol Nephrol 2006;38:63–7.
   PubMed Web of Science ®Google Scholar
• Weld KJ, Montiglio C, Morris MS, Bush AC, Cespedes RD. Shock wave lithotripsy success for renal stones based on patient and stone computed tomography characteristics. Urology 2007;70:1043–6.
   PubMed Web of Science ®Google Scholar
• Gupta NP, Ansari MS, Kesarvani P, Kapoor A, Mukhopadhyay S. Role of computed tomography with no contrast medium enhancement in predicting the outcome of extracorporeal shock wave lithotripsy for urinary calculi. BJU Int 2005;95:1285–8.
   PubMed Web of Science ®Google Scholar
• Pareek G, Armenakas NA, Fracchia JA. Hounsfield units on computerized tomography predict stone-free rates after extracorporeal shock wave lithotripsy. J Urol 2003;169:1679–81.
   PubMed Web of Science ®Google Scholar
• Patel SR, Haleblian G, Zabbo A, Pareek G. Hounsfield units on computed tomography predict calcium stone subtype composition. Urol Int 2009;83:175–80.
   PubMed Web of Science ®Google Scholar
• El-Nahas AR, El-Assmy AM, Mansour O, Sheir KZ. A prospective multivariate analysis of factors predicting stone disintegration by extracorporeal shock wave lithotripsy: the value of high-resolution noncontrast computed tomography. Eur Urol 2007;51:1688–93.
   PubMed Web of Science ®Google Scholar
• el-Assmy A, Abou-el-Ghar ME, el-Nahas AR, Refaie HF, Sheir KZ. Multidetector computed tomography: role in determination of urinary stones composition and disintegration with extracorporeal shock wave lithotripsy - an in vitro study. Urology 2011;77:286–90.
   PubMed Web of Science ®Google Scholar
• de la Rosette J, Assimos D, Desai M, Gutierrez J, Lingeman J, Scarpa R, et al. The Clinical Research Office of the Endourological Society Percutaneous Nephrolithotomy Global Study: indications, complications, and outcomes in 5803 patients. J Endourol 2011;25:11–17.
   PubMed Web of Science ®Google Scholar
• Perks AE, Gotto G, Teichman JM. Shock wave lithotripsy correlates with stone density on preoperative computerized tomography. J Urol 2007;178:912–15.
   PubMed Web of Science ®Google Scholar
• Park YI, Yu JH, Sung LH, Noh CH, Chung JY. Evaluation of possible predictive variables for the outcome of shock wave lithotripsy of renal stones. Korean J Urol 2010;51:713–18.
   PubMedGoogle Scholar
• Ouzaid I, Al-Qahtani S, Dominique S, Hupertan V, Fernandez P, Hermieu JF, et al. A 970 Hounsfield units (HU) threshold of kidney stone density on non-contrast computed tomography (NCCT) improves patients' selection for extracorporeal shockwave lithotripsy (ESWL): evidence from a prospective study. BJU Int 2012;110:E438–42.
   PubMed Web of Science ®Google Scholar
• Demirel A, Suma S. The efficacy of non-contrast helical computed tomography in the prediction of urinary stone composition in vivo. J Int Med Res 2003;31:1–5.
   PubMed Web of Science ®Google Scholar
• Kacker R, Meeks JJ, Zhao L, Nadler RB. Decreased stone- free rates after percutaneous nephrolithotomy for high calcium phosphate composition kidney stones. J Urol 2008;180:958–60.
   PubMed Web of Science ®Google Scholar
• Zarse CA, Hameed TA, Jackson ME, Pishchalnikov YA, Lingeman JE, McAteer JA, et al. CT visible internal stone structure, but not Hounsfield unit value, of calcium oxalate monohydrate (COM) calculi predicts lithotripsy fragility in vitro. Urol Res 2007;35:201–6.
   PubMedGoogle Scholar
• Lehman DS, Hruby GW, Phillips C, Venkatesh R, Best S, Monga M, et al. Prospective randomized comparison of a combined ultrasonic and pneumatic lithotrite with a standard ultrasonic lithotrite for percutaneous nephrolithotomy. J Endourol 2008;22:285–9.
   PubMed Web of Science ®Google Scholar
• Manglaviti G, Tresoldi S, Guerrer CS, Di Leo G, Montanari E, Sardanelli F, et al. In vivo evaluation of the chemical composition of urinary stones using dual-energy CT. AJR Am J Roentgenol 2011;197:W76–83.
   PubMed Web of Science ®Google Scholar
• Bagrodia A, Gupta A, Raman JD, Bensalah K, Pearle MS, Lotan Y. Predictors of cost and clinical outcomes of percutaneous nephrostolithotomy. J Urol 2009;182:586–90.
   PubMed Web of Science ®Google Scholar
• Akman T, Binbay M, Akcay M, Tekinarslan E, Kezer C, Ozgor F, et al. Variables that influence operative time during percutaneous nephrolithotomy: an analysis of 1897 cases. J Endourol 2011;25:1269–73.
   PubMed Web of Science ®Google Scholar