Paravertebral Blocks: Pilot Study to Compare Nerve Stimulation vs. Anatomic Landmarks in Inguinal Hernia Repair

Paravertebral Blocks Techniques: A Pilot Study to Compare Nerve Stimulation vs. Anatomic Landmarks for Patients Undergoing Inguinal Hernia Repair

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00587704

Acronym

PVB

Enrollment

Registered

2008-01-07

Start date

2007-07-31

Completion date

2009-05-31

Last updated

2010-02-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Inguinal Hernia

Brief summary

Primary aim: 1\. To compare the nerve stimulation vs. anatomic techniques of paravertebral block of T11-L1 in providing surgical anesthesia for patients undergoing inguinal hernia repair. Secondary aims: 1. Compare VAS pain scores in the two groups of patients over the first 24 hours. 2. Compare opioid intake over the first 24 hours in the two groups of patients.

Interventions

PROCEDUREPVB using nerve stimulation

5ml of 1% ropivacaine injected incrementally

PROCEDUREPVB using anatomic landmarks

5ml of 1% ropivacaine injected incrementally

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

SUPPORTIVE_CARE

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Unilateral open inguinal herniorrhaphy * Patient must be \>18 years of age * ASA physical status of I, II, or III * Patient competent to provide informed consent

Exclusion criteria

* Patient \< 18 years of age * Pregnant or lactating women * Patient unwilling or unable to provide informed consent * Contraindications to regional anesthesia * Allergy to amide local anesthetics

Design outcomes

Primary

Measure	Time frame
Successful full block at T11-L1	Every 10 minutes until full block achieved

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026