Ultrasound-Guided Rectus Sheath Block in a Pediatric Patient
Jun Takeshita, MD, PhD
Osaka Women’s and Children’s Hospital
Rectus sheath block (RSB) is a regional anesthesia technique in which a local anesthetic is injected between the posterior aspect of the rectus abdominis muscle and the posterior rectus sheath to block the anterior cutaneous branches of the thoracoabdominal nerves. In pediatric patients, RSB is particularly useful for surgeries performed through umbilical or circumumbilical incisions, such as umbilical hernia repair, laparoscopic surgery with umbilical port placement, pyloromyotomy for hypertrophic pyloric stenosis, and surgery for duodenal atresia, intestinal malrotation, or ovarian cysts. Ultrasound guidance improves the precision and safety of the block by enabling direct visualization of the rectus abdominis muscle, posterior rectus sheath, and underlying peritoneum.
This video demonstrates ultrasound-guided bilateral RSB in a 27-day-old, 3.9-kg neonate undergoing circumumbilical pyloromyotomy for hypertrophic pyloric stenosis. The video highlights the key technical aspects of the procedure, including the identification of the posterior rectus sheath, continuous visualization of the needle tip, appropriate lateral placement of the local anesthetic within the posterior rectus sheath plane, and measures to avoid peritoneal puncture and vascular injury. Particular attention is also given to the conservative dosing of ropivacaine in neonates to minimize the risk of local anesthetic systemic toxicity.
Pediatric Infant Bilateral Open Inguinal Hernia Repair – Twin A
Shai I. B. Stewart, MD1; Lissa Henson, MD2; Domingo Alvear, MD3
1Howard University Hospital
2Philippine Society of Pediatric Surgeons
3World Surgical Foundation
An inguinal hernia (IH) is a protrusion of intra-abdominal contents through the inguinal canal that can arise at any time from infancy to adulthood. It is more common in males with a lifetime risk of 27% as compared to 3% in females. Most pediatric IHs are congenital and caused by failure of the peritoneum to close, resulting in a patent processus vaginalis (PPV). IH present as a bulge in the groin area that can become more prominent when crying, coughing, straining, or standing up, and disappears when lying down. Diagnosis is based on a thorough medical history and physical examination, but imaging tests such as ultrasound can be used when the diagnosis is not readily apparent. IHs are generally classified as indirect, direct, and femoral based on the site of herniation relative to surrounding structures. Indirect hernias protrude lateral to the inferior epigastric vessels, through the deep inguinal ring. Direct hernias protrude medial to the inferior epigastric vessels, within Hesselbach’s triangle. Femoral hernias protrude through the small and inflexible femoral ring. In infants and children, IH are always operated on to prevent incarceration.
Surgical correction in infants and children is done by high ligation of the hernia sac only, called a herniotomy. Here, we present a female infant with bilateral IH. Upon exploration, a hernia sac was found, and ligation was performed bilaterally. In female patients, it is believed that failure of the closure of the canal of Nuck alongside the round ligament of the uterus is the etiology. Oftentimes there is a “sliding hernia” where the ovary and or the fallopian tube is attached to the sac, sometimes the uterus itself is attached.
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