Analysis of the estimation of bleeding using several proposed haematometric equations.

Purpose: Among various methods for estimating blood loss, the gravimetric method is the most accurate; however, its use in routine practice is complicated. Although several equations have been proposed for this purpose, there is no consensus on the most suitable.

Methods: A cross-sectional study was conducted in seven secondary and tertiary hospitals between March and July 2018 including all patients undergoing total hip arthroplasty or hip prosthesis replacement under general or regional anaesthesia.

Serratus intercostal interfascial plane block in supraumbilical surgery: a prospective randomized comparison.

Background: Upper abdominal wall surgical incisions may lead to a severe postoperative pain. Therefore, adequate analgesia is important. Here we investigate whether the low serratus-intercostal interfascial plane block (SIPB) achieves an effective analgesia, considering opioids consumption, pain control and recovery quality in upper abdominal surgeries.