Penile Blood Flow Characteristics Following Caudal or Penile Block

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

25 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-09-07

Study Completion Date

2021-12-31

Brief Summary

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Pediatric urologic surgery is generally accompanied by use of a caudal or penile block for analgesia. A caudal block is performed by injecting local anesthetic in the low epidural space while a penile block is performed by injecting local anesthetic above the pubic symphysis. Local anesthetic in the epidural space is known to caudal vasodilation interiorly. It is unknown as to whether this vasodilation results in alteration in flow to the penile tissue and potentially changes tissue characteristics. The aim of this study is to measure blood ultrasound velocity in the dorsal penile artery and vein before and after a block.

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Detailed Description

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Pediatric urologic surgery is generally accompanied by use of a caudal or penile block for analgesia. A caudal block is performed by injecting local anesthetic in the low epidural space while a penile block is performed by injecting local anesthetic above the pubic symphysis. Local anesthetic in the epidural space is known to caudal vasodilation interiorly. It is unknown as to whether this vasodilation results in alteration in flow to the penile tissue and potentially changes tissue characteristics. The aim of this study is to measure blood ultrasound velocity in the dorsal penile artery and vein before and after a block.

Conditions

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The Aim of This Study is to Measure Blood Flow Before and After a Block

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Penile block

Patients undergoing procedure with penile block

Block performed

Intervention Type PROCEDURE

Comparing block performed with penile blood flow

LMA placement

Intervention Type DEVICE

Placement of LMA for airway securement

caudal block

Patients undergoing procedure with caudal block

Block performed

Intervention Type PROCEDURE

Comparing block performed with penile blood flow

LMA placement

Intervention Type DEVICE

Placement of LMA for airway securement

Interventions

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Block performed

Comparing block performed with penile blood flow

Intervention Type PROCEDURE

LMA placement

Placement of LMA for airway securement

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Children ages \<7 years undergoing circumcision at TCH Penile or Caudal block to be performed at discretion of anesthesiology/Urology providers
* ASA classification1,2
* use of laryngeal mask airway

Exclusion Criteria

* Previous cardiac surgery
* Antihypertensive medication
* requirement for intravenous anesthetic
* ASA classification non 1,2
* parental refusal of participation parental refusal of block
* patients requiring intubation

Minimum Eligible Age

2 Years

Maximum Eligible Age

7 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No