Question
To ask Her Majesty’s Government how many in vitro fertilisation treatment cycles were abandoned due to a risk of ovarian hyperstimulation syndrome at centres 0076 and 0017 (a) between 1999 and 2003, (b) between 2003 and September 2007, and (c) since September 2007.
Answer
The Human Fertilisation and Embryology Authority (HFEA) has advised that the information requested is shown in the following table.
| Centre Code | Rate—all cycles/cycles where more than 20 eggs were collected | Maximum number of eggs collected | Mean number of eggs collected | Most common (modal) number of eggs collected | Cycles cancelled due to OHSS | |
| Between 01.01.1999 and 31.12.2002 | 0017 | 7.5% | 55 | 10.3 | 6 | 2 |
| 0076 | 4.6% | 34 | 9.9 | 7 | 12 | |
| Between 01.01.2003 and 31.08.2007 | 0017 | 6.2% | 51 | 9.2 | 0 | 4 |
| 0076 | 6.5% | 35 | 10.4 | 9 | 8 | |
| Between 01.09.2007 and 31.03.2010 | 0017 | 5.9% | 51 | 8.9 | 0 | 2 |
| 0076 | 9.6% | 58 | 11.1 | 9 | 30 |