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Intercostal nerve block

Intercostal nerve block . Dr. S. Parthasarathy MD., DA., DNB, MD ( Acu ), Dip. Diab . DCA, Dip. Software statistics,Ph D(physiology) Mahatma Gandhi medical college and research institute , puducherry , India . Indications . Analgesia after upper abdominal and thoracic surgery .

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Intercostal nerve block

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  1. Intercostal nerve block Dr. S. Parthasarathy MD., DA., DNB, MD (Acu), Dip. Diab. DCA, Dip. Software statistics,Ph D(physiology) Mahatma Gandhi medical college and research institute , puducherry, India

  2. Indications • Analgesia after • upper abdominal and thoracic surgery. • Rib fracture • PHN • Anaesthesia • Minorchestwallprocedures • ICD insertion • Any patient is ok but obesity ??

  3. Drugs • Supplement to assistmotor block • 0.5 % bupi or 2 % lignocaine • Sensory block • 0.25 % bupi or 0.25 % Ropi • Addition of epinephrine

  4. Anatomy • intercostal nerves are the ventral rami of T1 to T11 • T12 is subcostal nerve • Ilio inguinal • T1 – prefixed • T2 and T3 – intercostobrachial

  5. Branches and course 2 - sympathetic Dorsal Lateral – midaxillary line Anterior cutaneous • At the rib's posterior angle, the area most commonly used during intercostal nerve block, the nerve lies between the internal intercostal muscles and the intercostalisintimus muscle. Throughout the intercostal nerve's course, it traverses the intercostal spaces inferior to the intercostal artery and vein of the same space.

  6. Branches

  7. Course

  8. Technique • Position and mild sedation • prone position- pillow under the abdomen • Reduce lumbar lordosis , increase posterior intercostal space. • Arms hang down , to rotate the scapula

  9. marking pen to outline the anatomy for most regional blocks. • The midline should be marked from T1 to L5, then two paramedian lines should be drawn at the posterior angle of the ribs. • These lines should angle medially in the upper thoracic region so that they parallel the medial edge of the scapula

  10. Technique

  11. Technique • Skin puncture with retraction of skin • Hit the rib • Gauge depth • Take the needle back subcutaneous • Leave the retraction • Go back again – 2 -3 mm behind the previous depth • Walk off • 3 to 5 mL of local anesthetic solution is injected

  12. Lateral approach • mid-axillary line while the patient is in a supine position • Cryo probe as an open technique for post op analgesia

  13. USG picture of intercostal nerve

  14. Complications • vascularity of the intercostal space, blood levels of local anesthetic are higher for multiple-level intercostal block. • peak blood levels may be delayed for 15 to 20 minutes, • patients should be closely monitored after the completion of a block for at least that interval. • Hemorrhage • Pneumothorax ( 0.1 % ) • More imaginary

  15. Thank you all

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