The Effect of Caudal Block on the Postoperative Complications in Pediatric Patients After Hypospadias Repair

August 25, 2015 updated by: Yonsei University
Hypospadias refers to a disease represented by a congenital defect in the urethra meatus (urinary opening) in male children. Due to the postoperative pain, symptoms such as discomfort, agitation, and restlessness are generally found. In particular, young children with restlessness often express their pain or discomfort with their bodies because they are unable to express it in words. This severe restlessness may make an operated region unstable, accompanying bleeding, infection, or other surgery-related complications. Because postoperative pain control is very important, neuraxial block techniques such as epidural block or caudal block have been employed in addition to a penile dorsal nerve block. Although the neuraxial block technique including the caudal block is an easy and safe method and has an excellent effect, the neuraxial block technique poses a potential risk in the procedure. In addition, with respect to the surgical prognosis, it has been reported that penile engorgement may cause penile vasodilation, resulting in oozing at the surgical region or other surgical complications. However, there has not been a report on the increase of postoperative complications by penile vasodilation or on the difference in the recovery or surgical prognosis according to the types of pain control for young patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
404

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 120-752
        • Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University Health System

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 7 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Sampling Method

Probability Sample

Study Population

Pediatric patients who underwent the first hypospadias surgery at our institution between January, 2010 and December, 2014 (for 5 years).

Description

Inclusion Criteria:

  • Pediatric patients who underwent the tubularized incised plate (TIP) repair under hypospadias at our institution between January, 2010 and December, 2014

Exclusion Criteria:

  • Patients whose medical records could not be analyzed for having undergone the first hypospadias surgery at another institution. Other exclusion criteria were as follows: over the age of 8 years, planned two-stage hypospadias repair, receiving continuous epidural analgesia, and without hypospadias as the final diagnosis.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
IV PCA group
Procedure: IV PCA group
The IV PCA is performed by injecting fentanyl 15 mcg/kg with the following regimen
IV PCA+ caudal block group
Procedure: IV PCA+ caudal block group
The IV PCA is performed by injecting fentanyl 15 mcg/kg with the following regimen + caudal block was 0.15% ropivacaine 1.2 cc/kg; a total volume of 100 cc, basal 2 cc, bolus 0.5 cc, and lockout time 15 minutes.)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The postoperative complications related hypospadias repair
Time Frame: within 6 months after hypospadias repair
The electronic medical records of pediatric patients who underwent hypospadias repair will be reviewed to analyze the difference in postoperative complications within 6 months after surgery between patients whose postoperative pain control was performed only by IV PCA and patients whose postoperative pain control was performed by caudal block combined with IV PCA.
within 6 months after hypospadias repair

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Yonsei University

Study record dates

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Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 12, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 12, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 16, 2014

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 26, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 25, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 4-2014-0294

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