Obstetrics Book

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Pudendal Block

Aka: Pudendal Block
  1. See Also
    1. Active Labor Anesthesia
    2. Latent Labor Anesthesia
    3. Non-Pharmacologic Pain Control in Labor
    4. Epidural Anesthesia
    5. Intrathecal Morphine
    6. Paracervical Block
  2. Indication
    1. Late first stage and second stage Labor Analgesia
  3. Mechanism
    1. Blocks Pudendal Nerve at levels S2 to S4
  4. Procedure
    1. Hold Needle guide with first 2 fingers
    2. Middle finger resting on ischial spine
    3. Insert needle through guide into the pudendal canals
      1. Lateral to ischial spine
      2. Inferior to sacrospinous ligament
    4. Aspirate prior to injection to avoid Pudendal Artery
    5. Inject 10 ml 1% Lidocaine, Polocaine or Chloroprocaine 2% and repeat on the opposite side
  5. Advantages
    1. No maternal Hypotension
    2. Rare Fetal Distress
  6. Disadvantages: Incomplete analgesia
    1. Contraction pain still felt
    2. Episiotomy extensions may not be fully covered
  7. Complications (if injecting too deep)
    1. Systemic toxicity
    2. Rectal puncture
    3. Hematoma formation
    4. Sciatic block

Pudendal block (C0948498)

Concepts Therapeutic or Preventive Procedure (T061)
Italian Blocco anestetico pudendo
Japanese 陰部神経ブロック, インブシンケイブロック
Czech Pudendální blok
Hungarian Pudendalis blokád
English Pudendal block
Portuguese Bloqueio pudendo
Spanish Bloqueo del nervio pudendo
Dutch pudendablok
French Bloc du nerf honteux interne
German Pudendusanaesthesie
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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