OBJECTIVE: Despite advantages of ultrasound-guided peripheral nerve blocks as compared with established techniques, various limitations may exist. We present 2 trauma patients in whom the usefulness of ultrasound techniques was limited by edema and subcutaneous air. CASE REPORT: Two male patients were admitted to the Intensive Care Unit due to multiple trauma. In the first patient, tissue edema and obesity (body mass index, calculated as weight [kg]/height [m(2)] = 35), and in the second patient, subcutaneous emphysema, were significant limitations for the application of ultrasound-guided peripheral nerve blocks. These factors made 2-dimensional ultrasound imaging difficult despite the use of tissue harmonic technique and advanced ultrasound equipment. Neurostimulation technique alone, or combined with ultrasound imaging eventually led to successful nerve block. CONCLUSIONS: Ultrasound technique limitations do exist. We present 2 conditions, edema and subcutaneous air, which contributed to ultrasound failure to provide a clear image of the targeted nerves.
OBJECTIVE: Despite advantages of ultrasound-guided peripheral nerve blocks as compared with established techniques, various limitations may exist. We present 2 traumapatients in whom the usefulness of ultrasound techniques was limited by edema and subcutaneous air. CASE REPORT: Two male patients were admitted to the Intensive Care Unit due to multiple trauma. In the first patient, tissue edema and obesity (body mass index, calculated as weight [kg]/height [m(2)] = 35), and in the second patient, subcutaneous emphysema, were significant limitations for the application of ultrasound-guided peripheral nerve blocks. These factors made 2-dimensional ultrasound imaging difficult despite the use of tissue harmonic technique and advanced ultrasound equipment. Neurostimulation technique alone, or combined with ultrasound imaging eventually led to successful nerve block. CONCLUSIONS: Ultrasound technique limitations do exist. We present 2 conditions, edema and subcutaneous air, which contributed to ultrasound failure to provide a clear image of the targeted nerves.
Authors: Joseph M Neal; J C Gerancher; James R Hebl; Brian M Ilfeld; Colin J L McCartney; Carlo D Franco; Quinn H Hogan Journal: Reg Anesth Pain Med Date: 2009 Mar-Apr Impact factor: 6.288
Authors: Elfatih A Hasabo; Ahmed Assar; Maysa Madny Mahmoud; Hamid Ali Abdalrahman; EzzElDien A Ibrahim; Menna Allah Hasanin; Amr Khaled Emam; Yossef Hassan AbdelQadir; Ahmed Alaa AbdelAzim; Ahmed Said Ali Journal: Medicine (Baltimore) Date: 2022-08-26 Impact factor: 1.817