Melbourne IVF East Melbourne
Melbourne IVF East Melbourne
Ho W.L.C.,Murdoch Childrens Research Institute |
Bourne H.,Royal Melbourne Hospital |
Gook D.,Royal Melbourne Hospital |
Clarke G.,Royal Melbourne Hospital |
And 8 more authors.
Clinical Endocrinology | Year: 2017
Background: Advances in cancer treatment have led to improved long-term survival after childhood cancer, but often at a price of impaired future fertility. Fertility preservation (FP) in male children and early adolescents poses unique challenges as efficacy is unproven. Objectives: To describe characteristics of testicular tissue cryopreservation (TTCP) specimens taken from paediatric and adolescent patients, stratified by age, and prior chemotherapy, if any, and to demonstrate evidence for germ cells. Materials and methods: Retrospective review of gonadal biopsies and clinical records of patients consented into the Royal Children's Hospital FP programme between 1987 and 2015. Tissue was sliced into blocks, with one section sent for histopathology prior to cryopreservation. In boys ≥12 years where spermatogenesis could be expected, a portion of tissue was disaggregated completely to look for mature sperm and if found, additional tissue was dissected and the resulting suspension frozen. Results: Testicular tissue cryopreservation specimens in 44 males (0.3-16.8 years) provided an average of 7.8 slices per patient. All the specimens were taken at the same time as another necessary surgical procedure, under one general anaesthesic. There was only one complication of scrotal wound dehiscence. Seven of the forty-four (15.9%) patients had chemotherapy prior to testicular biopsy, while the rest were chemotherapy naïve. Five of these were prepubertal, and two were pubertal patients. Eleven subjects had tissue dissected with mature sperm found in eight. Of these eight patients where sperm were found, all were pubertal with testicular size of more than 10 mL and showing histological evidence of spermatogenesis. No histologic specimen demonstrated any malignant cells. Conclusions: Testicular tissue cryopreservation can be performed in young patients without delay, preferably prior to cancer treatment. As testicular tissue contains germ cells from which haploid spermatozoa are ultimately derived, future technologies may allow their utilization for fertility in humans. This may be the only hope for biological offspring in some patients undergoing fertility compromising treatment. Retrieval of mature sperm from some pubertal patients, however, offers realistic hope to these patients of future fertility. © 2017 John Wiley & Sons Ltd.
Fitz-Gerald A.L.,Monash Medical Center Southern Health Clayton |
Tan J.,Hollywood Medical Center |
Chan K.-W.,Monash Medical Center Southern Health Moorabbin |
Polyakov A.,Melbourne IVF East Melbourne |
And 4 more authors.
Journal of Minimally Invasive Gynecology | Year: 2013
Study Objective: To compare operating time, intraoperative blood loss, postoperative analgesia, and length of hospital stay using ultrasonic shears vs traditional suture ligature in vaginal hysterectomy. Design: Randomized controlled trial (Canadian Task Force classification I). Setting: Gynecology units within a single health network, university hospital. Patients: Forty women requiring vaginal hysterectomy because of benign disease. Interventions: Vaginal hysterectomy performed using either ultrasonically activated shears (USS) or traditional suture ligatures. Measurements and Main Results: Twenty-one patients were randomized to the USS arm, and 19 patients to the traditional suture ligature arm. Patient characteristics were comparable. Mean (SD) hysterectomy time and was similar in both the USS and traditional arms, 28.66 (4.0) minutes vs 32.37 (3.18) minutes (p=.47), as was total operating time, 97.38 (8.9) minutes vs 91.63 (7.69) minutes (p=.63). Operative blood loss was significantly decreased in the USS group: 62.63 (12.46) mL vs 136.05 (21.54) mL (p=.006). There was, however, no significant change in hemoglobin concentration between the 2 groups: 19.53 (1.79) g/L vs -16.72 (2.5) g/L. There was no significant difference in mean oxycodone use: 9.29 (2.66) mg vs 8.06(3.19) mg (p=.77). Length of hospital stay was similar in both groups: 58.98 (3.27) hours vs 60.05 (6.48) hours (p=.88). There was no significant difference in overall complication rates between the groups. Conclusion: Although the Harmonic scalpel system, compared with the traditional suture ligation method, seems to be a safe alternative for securing the pedicles in vaginal hysterectomy, it offers no benefit insofar as operative time, reduction in clinically significant blood loss, and analgesic requirements. © 2013 AAGL.