The purpose of the study was to compare PLND outcomes in patients at risk for lymph node involvement (LNI) who were undergoing radical prostatectomy (RP) by different surgeons
and surgical approaches.
Patients and Methods: Institutional policy initiated on January 1, 2010, mandated that all patients undergoing RP receive a standardized PLND with inclusion of the hypogastric region when predicted risk of LNI was 2%. We analyzed the outcomes of consecutive patients meeting these criteria from January 1 to September 1, 2010 by surgeons and surgical approach. All patients underwent Vorasidenib research buy RP; surgical approach (open radical retropubic [ORP], laparoscopic [LRP], RALP) was selected by the consulting surgeon. Differences in lymph node yield (LNY) between surgeons and surgical approaches were compared using multivariable linear regression with adjustment for clinical stage, biopsy Gleason
grade, prostate-specific antigen (PSA) level, and age.
Results: Of 330 patients (126 ORP, 78 LRP, 126 RALP), 323 (98%) underwent PLND. There were no significant differences in characteristics between approaches, but the nomogram probability of LNI was slightly greater for ORP than RALP (P = 0.04). LNY was high (18 nodes) by all approaches; more nodes were removed by ORP and LRP (median 20, 19, respectively) than RALP (16) after adjusting for stage, Thiazovivin clinical trial grade, PSA level, and age (P = 0.015). Rates of LNI were high (14%) with no difference between approaches when adjusted for nomogram probability of LNI (P = 0.15). Variation in median LNY among individual surgeons was considerable for all three approaches (11-28) (P = 0.005) and was much greater than the variability by approach.
Conclusions: PLND, including hypogastric nodal packet, can be performed by any surgical approach, with slightly different yields but similar pathologic outcomes. Individual surgeon
commitment to PLND may be more important than approach.”
“Dimercaptosuccinic acid (DMSA) has been evaluated and used ASP2215 with technetium 99m (Tc-99m) in imaging of kidneys. DMSA lyophilized kits were prepared and radiolabelled with Tc-99m. Paper and thin-layer chromatography have been employed using various eluent systems for the radiochemical analysis, percentage labeling and binding capacity of Tc-99m-DMSA. Female albino rabbits were used for this study. Biological data obtained after intravenous injection of radiolabelled DMSA to female albino rabbits revealed 32.42% uptake and long retention time in the kidneys. On the basis of animal biodistribution data, it is suggested that DMSA when labeled with Tc-99m is useful complex for renal imaging and can be successfully applied as a diagnostic tool in nuclear medicine. Clinical biodistribution and radiation dosimetry studies are planned in future.