The Caudal Space in Children: Ultrasound Evaluation

Yonsei University300 enrolled

Overview

Caudal anesthesia is commonly employed in pediatrics to produce postoperative analgesia in low abdominal or urologic surgery. An exact understanding of the anatomy of the sacral area including sacral hiatus and surrounding structures is crucial to the success of caudal block. The aim of this study is to evaluate the anatomy of the caudal space in pediatrics by ultrasound evaluation.

Study Type

OBSERVATIONAL

Enrollment

300

Conditions

Hydrocele Inguinal Hernia Hypospadia Cryptorchidism Genitourinary Disease

Interventions

ultrasound evaluation of caudal spaceOTHER

After induction of general anesthesia, the patients were placed in the lateral position. The ultrasound evaluation include transverse and longitudinal view. First, investigators place the transducer at the sacral cornua to obtain a transverse view. In the transverse view, the distance between two cornua and the depth of caudal space at the sacral hiatus were measured. In the longitudinal view, the distance from the skin to the sacrococcygeal membrane and the optimal angles and the safety distance for needle insertion depending on the points of insertions were measured. From the end of dura sac to the sacral hiatus were regarded as safety distance for the needle insertion during caudal block.

Eligibility

Sex: ALLMax age: 7 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients aged 0 - 84 months who were scheduled to undergo elective urological surgery. Exclusion Criteria: * Patients with any contraindication to caudal epidural block were excluded. * coagulopathy * allergy to local anesthetics * infection at the puncture site

Locations (1)

Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine

Seoul, South Korea

Outcomes

Primary Outcomes

ultrasound evaluation of caudal space

First, investigators place the transducer at the sacral cornua to obtain a transverse view. In the transverse view, the distance between two cornua and the depth of caudal space at the sacral hiatus were measured. In the longitudinal view, the distance from the skin to the sacrococcygeal membrane and the optimal angles and the safety distance for needle insertion depending on the points of insertions were measured. From the end of dura sac to the sacral hiatus were regarded as safety distance for the needle insertion during caudal block.

Time frame: Right after induction of general anesthesia, the patients were placed in the lateral position. The ultrasound evaluation include transverse and longitudinal view.

Data from ClinicalTrials.gov

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