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Tawfik, A. R., and E. -elD. A. - H. Korshy, "Extra-anatomical trans-obturator bypass, modifications of the technique 10 cases report and review of literature", C3 conference, Orlando Florida USA, 2013. surgeon_a0.pdf
MD, M. A. G. D. E. Y. H. A. G. A. G., "Extra-anatomic Bypasses, Current State and Modified Techniques", the Egyptin Journal of Surgery, vol. 16, pp. 3, 1997.
Mostafa, A. A., E. Bakr, and M. A. Ali, "Extra- articular stabilization of cranial cruicate ligaments-deficient stafle in dogs: a new fibial suture Anchor point", Journal of applied research veterinary medicine, vol. 11, issue 3, pp. 212-222, 2013.
MD, D. R. K. E. H. M., "Extra- anatomic bypasses, current state & modified technique", The Egyptian Journal of Surgery , vol. 16, issue 3, 1997.
elrahman refaat A. Youssef, T. Raafat, A. M.;T. A. Y., "Extra skeletal manifestations of the Histocytosis in pediatrics", ECR, Vienna, 2014. histocytosis._educational.pdf
, "Extra peritoneal Approach for Varicocelectomy (Preliminary Study)", New Egyptian Journal of Medicine, vol. 23, issue No.2 August, pp. 57-61, 2000.
Rezk-Allah, S. S., S. A. - E. N. Azm, and A. E. M. Gendy, "Extra corporeal shock wave therapy is superior to ultrasound in the treatment of lateral epicondylitis: An experimental study", Journal of medical research and practice, vol. 2, issue 7, pp. 1171-1178, 2013. extra-croporal_shock_wave.docpdf.pdf
Mohieldin, M., A. Rostom, and C. Zaki, "The external wealth of Arab nations: Structure, trends, and policy implications", Economic Notes, 2020.
Mohieldin, M., A. Rostom, and C. Zaki, "The external wealth of Arab nations: Structure, trends, and policy implications", Economic Notes, vol. 50, issue 2, pp. 1-17, 2021.
Abdelwahed, A. K., and M. H. Ramadan, "External Ventricular Drainage versus ventriculosubgaleal Shunt in management of Post-Hemorrhagic Hydrocephalus", 15th interim meeting of world federation of neurosurgical societies, Rome, Italy, September, 2015.
Palasz, J., L. D'Antona, S. Farrell, M. A. Elborady, L. D. Watkins, and A. K. Toma, "External ventricular drain management in subarachnoid haemorrhage: a systematic review and meta-analysis", Neurosurgical Review, 2021.
Kirmani, B. H., K. Mazhar, H. Z. Saleh, and A. N. Ward, "External validity of the Society of Thoracic Surgeons risk stratification tool for deep sternal wound infection after cardiac surgery in a UK population", Interact Cardiovasc Thorac Surg, vol. 17, pp. 479, 2013.
Biancari, F., T. Juvonen, S. - M. Cho, F. J. Hernández Pérez, C. L'Acqua, A. A. Arafat, M. M. AlBarak, M. Laimoud, I. Djordjevic, R. Samalavicius, et al., "External validation of the PC-ECMO score in postcardiotomy veno-arterial extracorporeal membrane oxygenation.", The International journal of artificial organs, pp. 3913988241237701, 2024. Abstract

Reliable stratification of the risk of early mortality after postcardiotomy veno-arterial extracorporeal membrane oxygenation (V-A-ECMO) remains elusive. In this study, we externally validated the PC-ECMO score, a specific risk scoring method for prediction of in-hospital mortality after postcardiotomy V-A-ECMO. Overall, 614 patients who required V-A-ECMO after adult cardiac surgery were gathered from an individual patient data meta-analysis of nine studies on this topic. The AUC of the logistic PC-ECMO score in predicting in-hospital mortality was 0.678 (95%CI 0.630-0.726;  < 0.0001). The AUC of the logistic PC-ECMO score in predicting on V-A-ECMO mortality was 0.652 (95%CI 0.609-0.695;  < 0.0001). The Brier score of the logistic PC-ECMO score for in-hospital mortality was 0.193, the slope 0.909, the calibration-in-the-large 0.074 and the expected/observed mortality ratio 0.979. 95%CIs of the calibration belt of fit relationship between observed and predicted in-hospital mortality were never above or below the bisector ( = 0.072). The present findings suggest that the PC-ECMO score may be a valuable tool in clinical research for stratification of the risk of patients requiring postcardiotomy V-A-ECMO.

El-Tamawy, M. S., H. Amer, N. A. Kishk, A. M. Nawito, M. A. Basheer, N. Alieldin, R. Magdy, and A. S. Othman, "External validation of STESS and EMSE as outcome prediction scores in an Egyptian cohort with status epilepticus", Epilepsy & Behavior, vol. 102: Academic Press, pp. 106686, 2020. Abstract

n/a

El-Tamawy, M. S., H. Amer, N. A. Kishk, A. M. Nawito, M. A. Basheer, N. Alieldin, R. Magdy, and A. S. Othman, "External validation of STESS & EMSE scores in an Egyptian cohort of status epilepticus", Epilepsy & Behavior, vol. 102, cairo, cairo, pp. 66-86, 2020.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Michael S. Leapman, J. E. Cowan, G. Roberge, and M. M. Eltemamy, "External validation of a prognostic Gleason grade classification system.", Journal of Clinical Oncology, vol. 34, pp. 123-123, 2016.
Greene, D. J., A. Elshafei, Y. A. Nyame, O. Kara, E. Malkoc, T. Gao, and S. J. Jones, "External validation of a PCA-3-based nomogram for predicting prostate cancer and high-grade cancer on initial prostate biopsy.", The Prostate, vol. 76, issue 11, pp. 1019-23, 2016 Aug. Abstract

INTRODUCTION: The aim of this study was to externally validate a previously developed PCA3-based nomogram for the prediction of prostate cancer (PCa) and high-grade (intermediate and/or high-grade) prostate cancer (HGPCa) at the time of initial prostate biopsy.

METHODS: A retrospective review was performed on a cohort of 336 men from a large urban academic medical center. All men had serum PSA <20 ng/ml and underwent initial transrectal ultrasound-guided prostate biopsy with at least 10 cores sampling for suspicious exam and/or elevated PSA. Covariates were collected for the nomogram and included age, ethnicity, family history (FH) of PCa, PSA at diagnosis, PCA3, total prostate volume (TPV), and abnormal finding on digital rectal exam (DRE). These variables were used to test the accuracy (concordance index) and calibration of a previously published PCA3 nomogram.

RESULTS: Biopsy confirms PCa and HGPCa in 51.0% and 30.4% of validation patients, respectively. This differed from the original cohort in that it had significantly more PCa and HGPCA (51% vs. 44%, P = 0.019; and 30.4% vs. 19.1%, P < 0.001). Despite the differences in PCa detection the concordance index was 75% and 77% for overall PCa and HGPCa, respectively. Calibration for overall PCa was good.

CONCLUSIONS: This represents the first external validation of a PCA3-based prostate cancer predictive nomogram in a North American population. Prostate 76:1019-1023, 2016. © 2016 Wiley Periodicals, Inc.

Greene, D. J., A. Elshafei, Y. A. Nyame, O. Kara, E. Malkoc, T. Gao, and S. J. Jones, "External validation of a PCA-3-based nomogram for predicting prostate cancer and high-grade cancer on initial prostate biopsy.", The Prostate, vol. 76, issue 11, pp. 1019-23, 2016 Aug. Abstract

INTRODUCTION: The aim of this study was to externally validate a previously developed PCA3-based nomogram for the prediction of prostate cancer (PCa) and high-grade (intermediate and/or high-grade) prostate cancer (HGPCa) at the time of initial prostate biopsy.

METHODS: A retrospective review was performed on a cohort of 336 men from a large urban academic medical center. All men had serum PSA <20 ng/ml and underwent initial transrectal ultrasound-guided prostate biopsy with at least 10 cores sampling for suspicious exam and/or elevated PSA. Covariates were collected for the nomogram and included age, ethnicity, family history (FH) of PCa, PSA at diagnosis, PCA3, total prostate volume (TPV), and abnormal finding on digital rectal exam (DRE). These variables were used to test the accuracy (concordance index) and calibration of a previously published PCA3 nomogram.

RESULTS: Biopsy confirms PCa and HGPCa in 51.0% and 30.4% of validation patients, respectively. This differed from the original cohort in that it had significantly more PCa and HGPCA (51% vs. 44%, P = 0.019; and 30.4% vs. 19.1%, P < 0.001). Despite the differences in PCa detection the concordance index was 75% and 77% for overall PCa and HGPCa, respectively. Calibration for overall PCa was good.

CONCLUSIONS: This represents the first external validation of a PCA3-based prostate cancer predictive nomogram in a North American population. Prostate 76:1019-1023, 2016. © 2016 Wiley Periodicals, Inc.