Safe Zone in Trigger Point Injection

Condition(s) studied

Investigational drug(s) / intervention(s)

Ultrasound guided injection with local anaestethic: Volunteers will first be asked to sit on a chair with their back facing the examiner, placing their arms in a relaxed position with their head supported on a surface in front of them. The ultrasound operator will be positioned behind the volunteer. Initially, in the sitting position, volunteers will be asked to maintain normal breathing. Once an optimal ultrasound image is obtained, the image will be frozen, and measurements will be taken from the same image in sequence. The measurements to be performed are as follows: skin-fat tissue distance, skin-trapezius muscle distance, skin-rhomboid muscle distance, skin-rib distance, skin-pleura distance, and rhomboid muscle-pleura distance. These measurements, in millimeters, will be recorded in the data collection form. The same measurements will also be taken during deep inhalation and deep exhalation in the sitting position."

Ultrasound guided injection with local anaestethic: Volunteers will first be asked to lay prone position.The ultrasound operator will be positioned behind the volunteer. Initially, in the sitting position, volunteers will be asked to maintain normal breathing. Once an optimal ultrasound image is obtained, the image will be frozen, and measurements will be taken from the same image in sequence. The measurements to be performed are as follows: skin-fat tissue distance, skin-trapezius muscle distance, skin-rhomboid muscle distance, skin-rib distance, skin-pleura distance, and rhomboid muscle-pleura distance. These measurements, in millimeters, will be recorded in the data collection form. The same measurements will also be taken during deep inhalation and deep exhalation in the sitting position."

Study summary

The goal of this observational study is to define the safe distance that will reduce the risk of pneumothorax through ultrasonographic imaging measurements in both sitting and prone positions to ensure patient safety during these procedures. The main question\[s\] it aims to answer \[is/are\]:

The mean distance between the skin and pleura in sitting position during the inhalation and exhalation The mean distance between the skin and pleura in prone position during the inhalation and exhalation

Eligibility

Primary outcome measure(s)

• skin-pleura distance in sitting position — 1 day
  Evaluate the skin-pleura distance in sitting position during inhalation and exhalation
• skin-pleura distance in prone position — 1 day
  skin-pleura distance in prone position during inhalation and exhalation

Trial sites (1)

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