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Ultrasound Blocks for the Anterior Abdominal Wall

Ultrasound Blocks for the Anterior Abdominal Wall

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Table of Contents<br />

1. Anatomy <strong>for</strong> Anes<strong>the</strong>siologists........................................ 13<br />

<strong>Anterior</strong> <strong>Abdominal</strong> <strong>Wall</strong> Structure.......................... 13<br />

Blood Supply to <strong>the</strong> <strong>Anterior</strong> <strong>Abdominal</strong> <strong>Wall</strong>......... 15<br />

<strong>Anterior</strong> <strong>Abdominal</strong> <strong>Wall</strong> Innervation...................... 16<br />

Iliohypogastric and Ilioinguinal Nerves....................18<br />

Inguinal Canal.............................................................. 20<br />

Genitofemoral Nerve................................................... 20<br />

Rectus Sheath.............................................................. 22<br />

Communication Between Anatomical Planes........... 23<br />

2. <strong>Ultrasound</strong> and Regional Anes<strong>the</strong>sia.............................. 24<br />

Sound Waves................................................................ 24<br />

Piezoelectric Effect...................................................... 26<br />

Imaging........................................................................ 27<br />

Transducers................................................................. 29<br />

Focus............................................................................. 30<br />

Presets.......................................................................... 30<br />

Time-gain Compensation............................................30<br />

Spatial Compound Imaging........................................ 30<br />

<strong>Ultrasound</strong> and <strong>the</strong> Needle.........................................31<br />

Equipment.................................................................... 31<br />

3. Transverse <strong>Abdominal</strong> Plexus Block............................... 35<br />

Blind Transverse <strong>Abdominal</strong> Plexus Block............... 36<br />

<strong>Ultrasound</strong>-guided Transverse <strong>Abdominal</strong> Plexus<br />

Block............................................................................. 37<br />

Spread........................................................................... 42

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