The External Oblique Intercostal Block: Anatomic Evaluation and Case Series.
Hesham ElsharkawySree KolliLoran Mounir SolimanJohn SeifRichard L DrakeEdward R MarianoKariem El-BoghdadlyPublished in: Pain medicine (Malden, Mass.) (2022)
We demonstrate the potential mechanism of this technique with a cadaveric study that shows consistent staining of both lateral and anterior branches of intercostal nerves T7-T10. Patients who received this block exhibited consistent dermatomal sensory blockade of T6-T10 at the anterior axillary line and T6-T9 at the midline. This block can be used in multiple clinical settings for upper abdominal wall analgesia.