Ultrasound-guided quadratus lumborum block versus ilioinguinal-iliohypogastric nerve block with wound infiltration for postoperative analgesia in unilateral inguinal surgeries: A randomised controlled trial.

Background And Aims: Ultrasound (US)-guided quadratus lumborum (QL) block is an abdominal field block that has high efficacy in providing postoperative analgesia for abdominal surgeries. This study was undertaken to compare the US-guided QL block with ilioinguinal-iliohypogastric (IIIH) nerve block and local wound infiltration in unilateral inguinal surgeries, in terms of analgesia and overall patient satisfaction.

Methods: This randomised controlled trial was conducted in two groups of thirty each.

Evaluation of Salivary Alpha-Amylase Levels for Determining Stress Variations in Patients Undergoing Spinal Anesthesia for Infra-Umbilical Surgery.

Aims And Objectives: To evaluate salivary alpha-amylase (sAA) levels for determining stress variations in patients undergoing spinal anesthesia for infra-umbilical surgery.

Materials And Methods: One hundred and twenty subjects (age 18-65 years) planned for infra-umbilical surgery under spinal anesthesia were included and allocated to Groups A and B ensuring age and sex matching. In both groups, sAA levels (S1 to S4) were assessed sequentially at different times (E1 to E4).

Nonspherical liquid droplet falling in air.

The dynamics of an initially nonspherical liquid droplet falling in air under the action of gravity is investigated via three-dimensional numerical simulations of the Navier-Stokes and continuity equations in the inertial regime. The surface tension is considered to be high enough so that a droplet does not undergo breakup. Vertically symmetric oscillations which decay with time are observed for low inertia.