TY - JOUR
T1 - Early vs. standard unclamping technique in minimal access partial nephrectomy
T2 - a meta-analysis of observational cohort studies and the Lister cohort
AU - Stonier, Thomas
AU - Rai, Bhavan Prasad
AU - Trimboli, Mariele
AU - Abroaf, Ahmed
AU - Patel, Amit
AU - Gowrie-Mohan, S.
AU - Prasad, Venkat
AU - Vasdev, Nikhil
AU - Adshead, Jim
N1 - © Springer-Verlag London Ltd. 2017
PY - 2017/12/1
Y1 - 2017/12/1
N2 - To evaluate if early unclamping (EUC) of the renal pedicle compromises perioperative outcomes in minimally invasive partial nephrectomy (PN). The cohort study includes all robot-assisted PN performed between September 2012 and September 2015 by a single surgeon at the Lister Hospital, Stevenage, UK. The systematic review and meta-analysis was performed according to the PRISMA guidelines identifying studies comparing EUC and standard unclamping (SUC) in either laparoscopic or robot-assisted PN. The Lister cohort prospectively reported 84 cases of robot-assisted PN (SUC = 22, EUC = 62) with a mean age of 58 years (SD = 11). The operative time (OT), estimated blood loss (EBL) and warm ischaemia time (WIT) were 186.5 min (SD = 33.8), 125.5 mls (SD = 188.91) and 16.7 min (SD = 5.6), respectively. The data from the Lister cohort were included in the meta-analysis. The systematic review identified four studies, encompassing 666 cases (313 SUC, 353 EUC), for inclusion in the final analysis. There was a statistically significant difference in WIT in favour of the EUC group [−10.59 min (95% CI −16.58, −4.60)]. Specifically, the reduction in WIT was more pronounced in laparoscopic PN (−15.43 min (95% CI −19.05, −11.81)), when compared with the robotic PN [−5.60 min (95% CI −5.70, −5.50)]. There was no statistical difference in OT [−3.97 min (95% CI −14.22, 6.28)]. EBL was found to be increased in the EUC group [71.39 ml (95% CI −0.78, 143.56)]. There was no statistically significant difference in transfusion rates or complications between the two groups. The EUC technique for robot-assisted PN appears to offer a safe limited period of WIT without compromising perioperative outcomes and morbidity.
AB - To evaluate if early unclamping (EUC) of the renal pedicle compromises perioperative outcomes in minimally invasive partial nephrectomy (PN). The cohort study includes all robot-assisted PN performed between September 2012 and September 2015 by a single surgeon at the Lister Hospital, Stevenage, UK. The systematic review and meta-analysis was performed according to the PRISMA guidelines identifying studies comparing EUC and standard unclamping (SUC) in either laparoscopic or robot-assisted PN. The Lister cohort prospectively reported 84 cases of robot-assisted PN (SUC = 22, EUC = 62) with a mean age of 58 years (SD = 11). The operative time (OT), estimated blood loss (EBL) and warm ischaemia time (WIT) were 186.5 min (SD = 33.8), 125.5 mls (SD = 188.91) and 16.7 min (SD = 5.6), respectively. The data from the Lister cohort were included in the meta-analysis. The systematic review identified four studies, encompassing 666 cases (313 SUC, 353 EUC), for inclusion in the final analysis. There was a statistically significant difference in WIT in favour of the EUC group [−10.59 min (95% CI −16.58, −4.60)]. Specifically, the reduction in WIT was more pronounced in laparoscopic PN (−15.43 min (95% CI −19.05, −11.81)), when compared with the robotic PN [−5.60 min (95% CI −5.70, −5.50)]. There was no statistical difference in OT [−3.97 min (95% CI −14.22, 6.28)]. EBL was found to be increased in the EUC group [71.39 ml (95% CI −0.78, 143.56)]. There was no statistically significant difference in transfusion rates or complications between the two groups. The EUC technique for robot-assisted PN appears to offer a safe limited period of WIT without compromising perioperative outcomes and morbidity.
KW - Declamping
KW - Laparoscopic
KW - Partial nephrectomy
KW - Robotic
KW - Unclamping
KW - Warm ischaemia time
UR - http://www.scopus.com/inward/record.url?scp=85027145123&partnerID=8YFLogxK
U2 - 10.1007/s11701-017-0734-9
DO - 10.1007/s11701-017-0734-9
M3 - Review article
C2 - 28799022
AN - SCOPUS:85027145123
SN - 1863-2483
VL - 11
SP - 389
EP - 398
JO - Journal of Robotic Surgery
JF - Journal of Robotic Surgery
IS - 4
ER -