Factors affecting recurrence after surgery for ovarian mature cystic teratoma.

We aimed to evaluate the risk factors for recurrence of surgically managed ovarian mature cystic teratoma (MCT). A total of 178 women with MCT managed surgically at our clinic were included in this retrospective study. The cases were followed for a minimum of 34 months. Risk factors recorded were age, gravidity, diameter of MCT, tumour markers, bilaterality, operation time and recurrence time. One hundred forty-one women (79.2%) underwent laparoscopy and the other thirty-seven patients (20.8%) underwent laparotomy. The mean age of patients with cyst recurrence was significantly lower than that of patients without recurrence (p = 0.02). There was a significantly lower median gravidity and parity in this group. The capacity of younger age, lower gravidity and parity in predicting the recurrence of ovarian MCT was analysed using receiver operating characteristic curve analysis. The cut-off value of age, number of gravidity and parity was 26, 1 and 0, respectively. In conclusion, younger age and lower gravidity and parity were predictive of recurrence due to a more conservative approach in young and nulliparous patients. Therefore, we suggest regular follow-up visits during the postoperative period, especially for younger patients and those with lower numbers of gravidity and parity.

Risk factors for adverse clinical outcomes in patients with tubo-ovarian abscess.

This study assessed the risk factors for poor clinical outcomes in patients with tubo-ovarian abscess (TOA). Patients managed with medical therapy and discharged within 7 days without complications constituted the favourable prognosis group (n = 22), whereas those who were managed surgically or discharged after 7 days of antibiotic therapy constituted the poor prognosis group (n = 87). Variables including age, gravidity, number of dilation and curettage procedures, caesarean delivery, smoking status, serum C-reactive protein levels, serum white blood count, body temperature, abscess diameter, presence of an intrauterine device (IUD), duration of IUD placement and length of hospitalisation were evaluated to assess their relationship with the clinical prognosis of TOA. Abscess diameter of ≥ 6 cm was a significant parameter that increased the risk eightfold for poor prognosis. No significant differences were observed regarding the other variables.

Long-term surgical outcomes of vaginal sacrospinous ligament fixation in women with pelvic organ prolapse.

AIM: Few studies have demonstrated the effects of the sacrospinous ligament fixation (SLF) in the long-term period. Aim of the study was to evaluate the short- and long-term outcomes of SLF. METHODS: This was a longitudinal cohort study. Fifty-one patients who had undergone SLF were evaluated postoperatively at 1 and 7 years. The characteristics of patients, intra- and postoperative complications, length of hospital stay period, short and long-term outcomes of the surgeries were recorded. Objective success was evaluated by vaginal and POP-Q examination at 1 and 7 years postoperatively. RESULTS: Out of 51 patients, 46 (90.19%) patients underwent vaginal hysterectomy, 36 (70.58%) patients anterior colporrhaphy, 31 (60.78%) patients posterior colporrhaphy and 11 (21.56%) patients transobturator tape concomitantly with SLF. The differences of Aa, Ba, Ap, Bp and total vaginal length (TVL) scores between preoperative, postoperative at 1 and 7 years were statistically significant (P<0.001). Cystocele rate, at 1 year and at 7 years, were 8 out of 51 (15.68%) and 9 out of 35 (25.71%), respectively. The objective cure rate for the apical vaginal vault prolapse at 1 year and at 7 years were 96% (49/51) and 94.28% (33 /35), respectively. CONCLUSION: SLF is an appropriate and safe treatment procedure in patients with vaginal vault prolapse in the seven years of follow-up period.

Experimental demonstration of 30 Gb/s direct-detection optical OFDM transmission with blind symbol synchronisation using virtual subcarriers.

The paper investigates the performance of a blind symbol synchronisation technique for optical OFDM systems based on virtual subcarriers. The test-bed includes a real-time 16-QAM OFDM transmitter operating at a net data rate of 30.65 Gb/s using a single OFDM band with a single FPGA-DAC subsystem and demonstrates transmission over 23.3 km SSMF with direct detection at a BER of 10(-3). By comparing the performance of the proposed synchronisation scheme with that of the Schmidl and Cox algorithm, it was found that the two approaches achieve similar performance for large numbers of averaging symbols, but the performance of the proposed scheme degrades as the number of averaging symbols is reduced. The proposed technique has lower complexity and bandwidth overhead as it does not rely on training sequences. Consequently, it is suitable for implementation in high speed optical OFDM transceivers.