The validity of continuous automated fluid monitoring during endometrial surgery: luxury or necessity?

Thirty‐four consecutive women undergoing endometrial laser ablation, as a treatment of menorrhagia, were recruited to assess the validity of fluid absorption monitoring by a new continuous automated system (AquaSens). The same group of women also had monitoring of fluid absorption carried out by our standard technique of weighing. The intra‐class correlation coefficient for the fluid deficit estimated by AquaSens compared to our standard technique of manually weighing the irrigation bags was 0.98 (95% CI 0.96–0.99). Aquasens therefore provides a valid and non‐invasive method of continuously monitoring fluid deficit amongst patients undergoing operative hysteroscopy procedures, thereby reducing the risk of unexpected fluid absorption and its potentially fatal sequelae.