After skin disinfection, the skin of the puncture site was given local anesthesia, and then the site between the 5th and 6th rib at the
midaxillary line was punctured.
Waist circumference (WC) was assessed in the standing position, midway between the highest point of the iliac crest and the lowest point of the costal margin in the
midaxillary line, at the end of expiration with person breathing silently.
Probe was then moved posterolaterally towards the
midaxillary line just superior to iliac crest (triangle of petit) after recognizing the plane between internal oblique and transversus abdominis muscle.
The dermatome of sensory blockade by pinprick was T4-L1 on the
midaxillary line. The resting/dynamic VAS scores were maintained below 1 from 12 to 36 h postoperatively.
Decision to treat with ICT drainage (ICTD) under water seal was made in all recurrent pneumothorax cases and in first episode cases that exhibited more than 2 cm of pneumothorax at hilar level on CXR-PA or failed initial aspiration.[1] An ICT of size '24' F was inserted into the 5th intercostal space along
midaxillary line using operative tube thoracostomy technique through the water seal drainage system.[1] The ICT was fixed to the skin nearby using silk suture material.
A longitudinal incision along the
midaxillary line was made from the coracoid process to the upper third of the forearm, which involved skin, subcutaneous tissue and brachial fascia.
Midaxillary line is the most commonly advocated position for tube thoracostomy.
Placing the probe was continued along the 2nd intercostal space in the midclavicular, anterior axillary and
midaxillary line and then in the same fashion along the 3rd and 4th intercostal spaces on the left and the 2nd, 3rd, 4th and 5th intercostal spaces on the right.
The skin and subcutaneous tissue on the abdominal flank, spreading horizontally from the midline to the
midaxillary line and vertically from the 10th thoracic vertebra to the sacrum, were removed to reveal the LD, external oblique muscle (EO), and the posterior layer of the TLF.
5mL of 2% Xylocaine was used to infiltrate the skin and a 24Fr Argyle chest tube was promptly placed in the left 5th intercostal space at the anterior
midaxillary line without any difficulty.
The right atrium was exposed via a right
midaxillary line incision at the fourth intercostal space level.
(5,9) Specifically among nurses, a survey of 28 critical care units indicates that 70% routinely measure CPP at the
midaxillary line and 20% measure CPP at the tragus.