Assessment of angiogenic factor, vascular endothelial growth factor, serum and urine level changes in superficial bladder tumor immunotherapy by intravesical Bacillus Calmette-Guerin

Bladder tumor is one of the most common genitourinary tumors. Management of non-muscle invasive [NMI] bladder tumors is primarily by transurethral resection [TURBT] followed by intravesical immunotherapy or chemotherapy. Bacillus Calmette-Guerin [BCG] is the most effective adjuvant therapy in NMI bladder tumor. Since angiogenesis is an essential factor in solid tumor progression and vascular endothelial growth factor [VEGF] is an important factor in angiogenesis, the aim of this study is the assessment of angiogenic factor, VEGF, serum and urine level changes in superficial bladder tumor immunotherapy by intravesical BCG. A total of 23 patients with bladder transitional cell carcinoma [TCC] in stage Ta/T1 or carcinoma insitu [CIS], low or high grade, which passed a 2-4 week period from TURBT participated in this study. Blood and urine samples were obtained at first and sixth sessions before instillation of BCG. Enzyme-linked immunosorbent assay [ELISA] method was used to obtain VEGF level in samples. Urine and serum VEGF levels did not change significantly before and after BCG therapy. Changes in VEGF level were significantly different neither in low grade against high grade tumors nor in stage T1 against stage Ta tumors. A significant difference in VEGF level was seen between low grade and high grade tumors in serum after BCG therapy [P=0.007]; but not in urine samples. Although intravesical BCG possesses anti-angiogenic activity, it seems that it exerts its effect through pathways other than VEGF, especially in low grade tumors

Comparison of open and laparoscopic varicocelectomies in terms of operative time, sperm parameters, and complications

Varicocele is one of the most common causes of infertility. In this study, we evaluated and compared the operative time, sperm analysis results, and complications of three different methods of open and laparoscopic varicocelectomies. From among all bilateral varicocelectomies in our center, we randomly selected 30 of each following cases: laparoscopic varicocelectomy, open subinguinal varicocelectomy under general anesthesia, and open subinguinal varicocelectomy under local anesthesia. We compared the operative time, sperm analysis results, and complications between these three groups. The mean operative times were 30.0 +/- 5.5 minutes for laparoscopies, 27.0 +/- 3.5 minutes for open varicocelectomies under general anesthesia, and 38.0 +/- 1.8 minutes for open varicocelectomies under local anesthesia [P = .02]. Intra-operative complications occurred only in the laparoscopic group, and postoperative complications were seen in 23.3%, 20.0%, and 4.2% of the patients with laparoscopy, open surgery under general anesthesia, and open surgery under local anesthesia, respectively. Semen analysis did not show any significant changes after varicocelectomy except for a slight improvement of sperm morphology in patients who underwent open varicocelectomy under local anesthesia. Subinguinal varicocelectomy under local anesthesia is better than laparoscopic method in terms of recurrence, hydrocele formation, and operative time. Subinguinal method under general anesthesia has intermediate efficacy regarding less complications than laparoscopic method and shorter operative time than the two other methods