Poor ventilation blamed for gas and air suspension

The RCM midwives’ union says poor ventilation in delivery suites and labour wards is behind NHS trust decisions to temporarily suspend the use of gas and air in hospitals, after the identification of a potential risk to staff through prolonged exposure.

RCM guidance explains that Entonox medical gas is made up of 50% oxygen and 50% nitrous oxide and is used for inhalation pain relief in medical settings, including in labour. But long-term exposure can affect vitamin B12 levels, leading to potential nerve damage and anaemia.

“Too many of the buildings that house maternity services are simply not fit for purpose,” said RCM executive director Dr Suzanne Tyler. “This issue has arisen because of poor ventilation in delivery suites and labour wards – but this is just the tip of the iceberg. We know of crumbling walls, ceilings being held up by props and even sewage flowing onto wards.”

She added: “During Covid, a lack of decent ventilation and appointments taking place in tiny rooms meant that birth partners were unable to attend scans. These aren’t cosmetic issues. We need to see proper investment in maternity services, including the bricks and mortar.”

In response to the concerns, NHS England issued new guidance outlining best practice for using gas and air in maternity units, operating theatres and emergency departments.