Dorsal Nerve Block and Caudal Block in Hypospedius Repair in Children

Dorsal Nerve Block in Hypospiudus

Comparison between Dorsal nerve block and caudal block effect in post operative pain in hypospedius repair in children Randomoized clinical trial

• Group A receive caudal block placing the patient into the left lateral decubitus position. Povidone iodine was used to sterilize the skin. The sacral hiatus was found by palpating the sacral cornu and a 22-G needle was placed through it. After passing through the sacrococcygeal membrane by using the loss of resistance method, the caudal epidural space was entered. Negative aspiration was used to make sure there was no blood or cerebrospinal fluid present and 0.25% bupivacaine was administered at a dose of 0.2 ml/kg. Once the procedure was completed, the patient was placed into the supine Position. Group B US guided Dorsal penil block. General anesthesia induction was followed by skin sterilization using 70% alcohol in 2% chlorhexidine. The 5-10 MHz linear probe was placed at the penis root, making it possible to observe the corpus cavernosum, corpus spongiosum, dorsal artery and vein, and the deep penile fascia (Buck's fascia) on the transverse plane with gentle penile traction. The in-plane technique was then used to insert a 50-mm block needle toward the dorsal penile section from the lateral part of the penis root. The needle was then advanced from the hyperechoic superficial penis fascia (Dartos fascia) and the superficial sheath was passed. After advancing the needle into Buck's fascia, the needle was placed lateral to the dorsal artery, at a position between Buck's fascia and tunica albuginea. Negative aspiration was performed. US was then used to observe the distribution of the anesthetic while half of the total 0.25% bupivacaine dose (0.2 mL/kg) was administered (Fig. 1). Afterward, the same procedure was also performed on the other side of the penis.

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