Investigator

Radha Graham

University College London Hospitals NHS Foundation Trust, Gynaecological Oncology

RGRadha Graham
Papers(5)
The oncological and r…High performance of t…A comparison of end-t…Letter to Editor in R…Surgical management a…
Collaborators(10)
Samuel OxleyCharlotte VavourakisChiara HerzogElisa RedlJames BarrettLena SchreiberhuberMalcolm ScottMartin WidschwendterM. Olabisi OgunbiyiOjone Illah
Institutions(4)
University College Lo…Queen Mary University…University of Innsbru…University College Lo…

Papers

High performance of the DNA methylation‐based WID‐qEC test for detecting uterine cancers independent of sampling modalities

AbstractEndometrial cancer (EC) is the most prevalent gynaecological cancer in high‐income countries and its incidence is continuing to rise sharply. Simple and objective tools to reliably detect women with EC are urgently needed. We recently developed and validated the DNA methylation (DNAme)‐based women's cancer risk identification—quantitative polymerase chain reaction test for endometrial cancer (WID‐qEC) test that could address this need. Here, we demonstrate that the stability of the WID‐qEC test remains consistent regardless of: (i) the cervicovaginal collection device and sample media used (Cervex brush and PreservCyt or FLOQSwab and eNAT), (ii) the collector of the specimen (gynaecologist‐ or patient‐based), and (iii) the precise sampling site (cervical, cervicovaginal and vaginal). Furthermore, we demonstrate sample stability in eNAT medium for 7 days at room temperature, greatly facilitating the implementation of the test into diagnostic laboratory workflows. When applying FLOQSwabs (Copan) in combination with the eNAT (Copan) sample collection media, the sensitivity and specificity of the WID‐qEC test to detect uterine (i.e., endometrial and cervical) cancers in gynaecologist‐taken samples was 92.9% (95% confidence interval [CI] = 75.0%–98.8%) and 98.6% (95% CI = 91.7%–99.9%), respectively, whilst the sensitivity and specificity in patient collected self‐samples was 75.0% (95% CI = 47.4%–91.7%) and 100.0% (95% CI = 93.9%–100.0%), respectively. Taken together these data confirm the robustness and clinical potential of the WID‐qEC test.

A comparison of end-to-end and end-to-side anastomosis following rectosigmoid resection in ovarian cancer cytoreductive surgery

A rectosigmoid resection with anastomosis is a common component of cytoreductive surgery for ovarian cancer. Evidence from colorectal studies suggests that end-to-side anastomoses may be associated with fewer complications than end-to-end approaches, but these have not previously been compared in an ovarian cancer patient cohort. Over a 51-month period, 239 patients underwent cytoreductive surgery for FIGO stage III/IV ovarian cancer. A rectosigmoid resection was performed in 79 (33.1%) with anastomosis in 59 (74.7%). Pre-operative and intra-operative factors associated with anastomotic leak, and post-operative complications were compared by anastomotic technique. Anastomoses were end-to-end in 33 (55.9%) and end-to-side in 26 (44.1%) patients. There was a greater proportion of patients with a higher American Society of Anaesthesiologists score in the end-to-side group, but no other statistically significant differences in pre-or intra-operative factors between the groups. There were three (9.1%) cases of anastomotic leak in the end-to-end group, and no leaks in the end-to-side group, but the difference did not reach statistical significance. Both leaks were small, and successfully conservatively managed. There was no significant difference in rate of Clavien Dindo grade III/IV complications, although there was a higher rate of grade II complications following an end-to-side anastomosis (p = 0.036). There was no difference in length of stay, time to restarting chemotherapy, re-operation or 90-day mortality rate. There was no significant difference in major morbidity following end-to-end or end-to-side anastomosis. Prospective randomised trials specifically focussed in ovarian cancer are needed.

Surgical management and outcomes for stage 1 malignant ovarian germ cell tumours: A UK multicentre retrospective cohort study

To describe the current surgical management of stage 1 malignant ovarian germ cell tumours and correlated oncological outcomes. We undertook a retrospective study of all stage 1 primary ovarian germ cell tumours treated in four major UK gynaecology oncology centres over 12 years. We assessed route of surgery, fertility-sparing approaches, ovarian cystectomy alone, and surgical staging and correlated these with clinical outcomes. Eighty-six patients were followed-up for a median of 4.4 years (IQR 4.3). The median age was 26 (range 11-47). There were 24 (27.9%) dysgerminomas, 13 (15.1%) yolk sac tumours, 10 (11.3%) mixed germ cell tumours, and 39 (45.3%) immature teratomas. Overall survival was 96.6% (OS, 95% CI 91.9-100%), with event free survival of 81.8% (EFS, 95% CI 72.5-92.3) at 5 years. The majority had fertility-sparing surgery (93%, n = 80). In a subset of patients with immature teratoma, there was no significant difference in recurrence or survival if patients underwent unilateral cystectomy only or salpingo-oophorectomy. Laparotomy was the most common approach (n = 66, 76.7%), used more frequently for larger tumours > 10 cm. Surgical staging procedures were undertaken in 42 (48.6%) patients with no significant difference in rates of staging across histological subtypes. Peritoneal biopsies were taken in 11 (12.7%), omental assessment in 40 (46.5%) and lymphadenectomy in 10 (11.6%). There was no significant difference in EFS between patients who underwent staging procedures (83%, CI 71-98%) versus those that did not (84%, CI 72-98%). There was no significant difference in the rate of staging procedures in paediatric (42.1% 8/19) and adult (57.9% 34/67) populations. Across all histologies and ages, the absence of surgical staging did not impact upon disease free or overall survival in this cohort. This study also raises the possibility of a role for ovarian cystectomy in immature teratoma. These findings warrant investigation in larger prospective studies.

10Works
5Papers
10Collaborators

Positions

Researcher

University College London Hospitals NHS Foundation Trust · Gynaecological Oncology