Number, frequency and time interval of examinations under anesthesia in bilateral retinoblastoma

Ido Didi Fabian*, Vishal Shah, Noa Kapelushnik, Zishan Naeem, Zerrin Onadim, Elizabeth A. Price, Catriona Duncan, David Stansfield, Mandeep S. Sagoo, M. Ashwin Reddy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Purpose: Current practice in retinoblastoma (Rb) has transformed this malignancy into a curable disease. More attention should therefore be given to quality of life considerations, including measures related to examinations under anesthesia (EUAs). We aimed to investigate EUA measures in bilateral Rb patients and compare the findings to EUAs in unilateral Rb. Methods: A retrospective analysis of bilateral Rb patients that presented to the London Rb service from 2006 to 2013, were treated and had long-term follow-up. Results: A total of 62 Rb patients, 15 (24.2%) of which had International Intraocular Retinoblastoma Classification (IIRC) group A/B/no Rb at presentation, 26 (41.9%) C/D, and 21 (33.9%) were E in at least one eye. The mean number of EUAs was 35.8 ± 21.5, mean time from first to last EUA was 50.6 ± 19.9 months, and mean EUA frequency was 0.715 ± 0.293 EUAs/month. IIRC group was found not to correlate with any of the EUA measures. Age at presentation inversely correlated with time interval from first to last EUA and to EUA frequency (p ≤ 0.029). Rb family history correlated with the latter measure (p = 0.005) and intraophthalmic artery chemotherapy and brachytherapy correlated with all EUA measures (p ≤ 0.029). Mean follow-up time was 80.1 ± 24.3 months. When compared with a previously reported cohort of unilateral Rb, the present group underwent 3× more EUAs (p < 0.001) over nearly double the time (p < 0.001). Conclusions: Families should be counselled on anticipated EUA burden associated with bilateral Rb. In this respect, age at presentation and family history were found to have a predictive role, whereas IIRC group did not.

Original languageEnglish
Pages (from-to)879-886
Number of pages8
JournalGraefe's Archive for Clinical and Experimental Ophthalmology
Issue number4
StatePublished - 1 Apr 2020


  • Chemotherapy
  • Enucleation
  • Examination under anesthesia
  • Retinoblastoma


Dive into the research topics of 'Number, frequency and time interval of examinations under anesthesia in bilateral retinoblastoma'. Together they form a unique fingerprint.

Cite this