Comparison of Characteristics of Caudal Block in Two Different Approaches: Trans-Sacral and Trans-Sacral Hiatus


A Shahriari 1 , * , MH Heidari 2 , M Roudbari 3

1 Instructor, Assistant Professor, Departement of anesthesiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran

2 Assistant Professor, Section of Anatomy, Department of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Associate Professor of biostatics, Dept. of Mathematics and Statistics, Iran University of Medical Sciences, Tehran, Iran

How to Cite: Shahriari A, Heidari M, Roudbari M. Comparison of Characteristics of Caudal Block in Two Different Approaches: Trans-Sacral and Trans-Sacral Hiatus, Shiraz E-Med J. Online ahead of Print ; 9(4):175-181.


Shiraz E-Medical Journal: 9 (4); 175-181
Published Online: October 1, 2008
Article Type: Research Article
Received: March 1, 2008
Accepted: September 25, 2008




Background: Caudal block offers a good and safe postoperative analgesia in pediatric patients. In a randomized study we have examined the characteristics and mean duration of analgesia after caudal anesthesia performed with two different routes: trans-sacral and trans-sacral hiatus.

Methods: Forty boys in Ali-Ebne-Abitaleb Hospital of Zahedan undergoing hyspospadias repair were randomly allocated in two groups to receive bupivacaine 1.5mg/kg from sacral route in one group and from sacral hiatus route in the control group. Postoperative pain and sedation scores were assessed for 12 hr after operation.

Results: The time of first requiring of additional analgesia did not differ significantly between two groups (36540 min in sacral group vs 39035 min in trans-sacral-hiatus group) (P value=0.17). Side effects were not seen in any patients. Two groups were comparable with regards pain scores and sedation scores at 1 and 7h (P > 0.05).

Conclusion: We concluded that the trans-sacral route is an acceptable, safe and easy method for performing caudal block, but total duration of analgesia did not differ with these two methods.


Caudal anesthesia, Sacral Hiatus, Trans-sacral.

© 2008, Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License ( which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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