Matthias Saar

Prof. Dr. Matthias Saar

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 February 2014 in European Urology
Verified
Journal Article
Closed access
KAKamran Ahmed
Kamran Ahmed
SKShahid A. Khan
Shahid A. Khan
MHMatthew H. Hayn
Matthew H. Hayn
PAPiyush K. Agarwal
Piyush K. Agarwal
KBKetan K. Badani
Ketan K. Badani
MKMuhammad Shamim Khan
Muhammad Shamim Khan

22 November 2019 in European Journal of Nuclear Medicine and Molecular Imaging
Verified
Journal Article
Closed access
PDF file
FKFadi Khreish
Fadi Khreish
NENiklas Ebert
Niklas Ebert
MRMartin Ries
Martin Ries
SMStephan Maus
Stephan Maus
FRFlorian Rosar
Florian Rosar
Samer EzziddinSamer Ezziddin
Samer Ezziddin

1 July 2013 in European Urology
Verified
Journal Article
Closed access
RJRaza S. Johar
Raza S. Johar
MHMatthew H. Hayn
Matthew H. Hayn
ASAndrew P. Stegemann
Andrew P. Stegemann
KAKamran Ahmed
Kamran Ahmed
PAPiyush Agarwal
Piyush Agarwal
KGKhurshid A. Guru
Khurshid A. Guru

1 May 2018 in Journal of Urology
Verified
Journal Article
Open access
AHAhmed A. Hussein
Ahmed A. Hussein
PMPaul R. May
Paul R. May
ZJZhe Jing
Zhe Jing
YAYoussef E. Ahmed
Youssef E. Ahmed
CWCarl J. Wijburg
Carl J. Wijburg
MSMatthias Saar
Matthias Saar
This study aimed to provide an update and compare perioperative outcomes and complications of intracorporeal and extracorporeal urinary diversion following robot-assisted radical cystectomy using data from the multi-institutional, prospectively maintained International Robotic Cystectomy Consortium database. We retrospectively reviewed the records of 2,125 patients from a total of 26 institutions. Intracorporeal urinary diversion was compared with extracorporeal urinary diversion. Multivariate logistic regression models using stepwise variable selection were fit to evaluate preoperative, operative and postoperative predictors of intracorporeal urinary diversion, operative time, high grade complications and 90-day hospital readmissions after robot-assisted radical cystectomy. In our cohort 1,094 patients (51%) underwent intracorporeal urinary diversion. These patients demonstrated shorter operative time (357 vs 400 minutes), less blood loss (300 vs 350 ml) and fewer blood transfusions (4% vs 19%, all p <0.001). They experienced more high grade complications (13% vs 10%, p = 0.02). Intracorporeal urinary diversion use increased from 9% of all urinary diversions in 2005 to 97% in 2015. Complications after this procedure decreased significantly with time (p <0.001). On multivariable analysis higher annual cystectomy volume (OR 1.02, 95% CI 1.01-1.03, p <0.002), year of robot-assisted radical cystectomy (2013-2016 OR 68, 95% CI 44-105, p <0.001) and American Society of Anesthesiologists® score less than 3 (OR 1.75, 95% CI 1.38-2.22, p <0.001) were associated with undergoing intracorporeal urinary diversion. The procedure was associated with a shorter operative time of 27 minutes (p = 0.001). The use of intracorporeal urinary diversion has increased in the last decade. A higher annual institutional volume of robot-assisted radical cystectomy was associated with intracorporeal urinary diversion as well as with shorter operative time. Although intracorporeal urinary diversion was associated with higher grade complications than extracorporeal urinary diversion, they decreased with time.

1 October 2015 in European Urology
Verified
Journal Article
Closed access
SRSyed Johar Raza
Syed Johar Raza
TWTimothy Wilson
Timothy Wilson
JPJames O. Peabody
James O. Peabody
PWPeter Wiklund
Peter Wiklund
DSDouglas S. Scherr
Douglas S. Scherr
KGKhurshid Ahad Guru
Khurshid Ahad Guru

19 April 2020 in BJU International
Verified
Journal Article
Closed access
PDF file
AHAhmed A. Hussein
Ahmed A. Hussein
AEAhmed S. Elsayed
Ahmed S. Elsayed
NANaif A. Aldhaam
Naif A. Aldhaam
ZJZhe. Jing
Zhe. Jing
JPJames O. Peabody
James O. Peabody
KGKhurshid Ahad Guru
Khurshid Ahad Guru