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Uno studio pilota sull'anestesia locale per la chirurgia dell'ernia inguinale negli anziani

1 ottobre 2026 aggiornato da: University of Wisconsin, Madison

The purpose of this study is to collect data about local versus general anesthesia for inguinal hernia repair in Veterans aged 60 years for planning a larger, multisite randomized clinical trial. Approximately 80 participants will be enrolled and can expect to be on study for 6 months.

Panoramica dello studio

Stato

Attivo, non reclutante

Condizioni

Intervento / Trattamento

Descrizione dettagliata

The study rationale is that prior to conducting a multisite randomized trial, it is necessary to identify relevant outcomes, understand barriers to greater use of local anesthesia, test study procedures, and confirm our ability to adequately recruit and randomly assign participants. Additionally, the proposed study will provide the applicant with critical training in the design, conduct, and analysis of clinical trials. This will uniquely position the applicant to change surgical care for older adults.

More specifically, the investigators plan to demonstrate the ability to successfully randomize Veterans aged 60 years and older to local versus general anesthesia for inguinal hernia surgery, and to validate processes and instruments to measure relevant outcomes.

Although the original NIA-approved proposal involved only two arms, open hernia repair using local anesthesia and open repair using local anesthesia, the study team subsequently published a paper that showed using local anesthesia for open hernia repair may also be superior to laparoscopic or robotic hernia repair. Consequently, a third arm is added to our pilot study: laparoscopic or robotic hernia repair with general anesthesia (these surgical approaches cannot be done using local anesthesia). The rationale is that use of laparoscopic or robotic inguinal hernia surgery, while still less common than open repair, is becoming more common and no prior randomized trials have compared laparoscopic/robotic surgery versus open repair using local anesthesia.

Local or general anesthesia are the primary methods of anesthesia for inguinal hernia surgery for most surgeons (though some perform the operation under spinal or regional anesthesia, this is rare). Both approaches are used in clinical practice with acceptable known risks and complications. General anesthesia is associated with risks of hypotension, venous thromboembolism, heart attack, stroke, pulmonary dysfunction, cognitive dysfunction, allergic reaction, urinary retention, and malignant hyperthermia. The main risks of local anesthesia include allergic reaction and hypotension (when the anesthetic is improperly injected into a blood vessel).

The primary objective is to:

  1. demonstrate ability to successfully recruit, randomize, and retain patients aged 60 years and older for a randomized trial of local versus general anesthesia for inguinal hernia surgery, and
  2. establish the ability to measure relevant outcomes and test protocols and study instruments for measuring key outcomes.

The secondary objective is to generate preliminary comparisons between the study arms, to inform effect size estimates for a larger multisite trial.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

18

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Texas
      • Dallas, Texas, Stati Uniti, 75390
        • University of Texas Southwestern Medical Center
      • Houston, Texas, Stati Uniti, 77030
        • Baylor College of Medicine
    • Wisconsin
      • Madison, Wisconsin, Stati Uniti, 53705
        • University of Wisconsin

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

60 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

Sì

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Age greater than or equal to 60 years
  • Presenting to clinic with a unilateral inguinal hernia that is not incarcerated
  • Considered suitable for either general or local anesthesia
  • Willing to complete all study requirements, including follow-up continuing until six months after surgery
  • English speaking

Exclusion Criteria:

  • The hernia that the patient is being evaluated for has undergone prior repair
  • Any contraindications to general anesthesia
  • Allergies to local anesthesia
  • Evidence of hernia incarceration or strangulation
  • Active local or systemic infection that would preclude the use of mesh for hernia repair
  • Need for concurrent surgical repair at the time of hernia repair
  • English is not the patient's primary language
  • Enrollment in other research studies
  • Clinical judgement of surgeon or anesthesiology
  • Current pregnancy
  • Unwilling to provide consent
  • Current active illegal drug use
  • Current alcoholism
  • Claustrophobia
  • Unable to tolerate lying in supine position for greater than 30 minutes

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Open Inguinal Repair- Local anesthesia

This arm will receive local anesthesia for their open inguinal hernia repair.

Patients in the local anesthesia arm will receive an injection of a 50:50 mix of 1% lidocaine with epinephrine and 0.25% Marcaine at the surgical site (in the skin and subcutaneous layers + beneath the external oblique aponeurosis). Patients in the local arm will also receive intravenous sedation (Propofol or Precedex) and pain medication (morphine or fentanyl) at the discretion of the attending anesthesiologist.

Comparatore attivo: Inguinal Hernia Repair- General Anesthesia

This arm will receive general anesthesia for their open inguinal hernia repair or laparoscopic / robotic repair.

General anesthesia will be administered at the discretion of the anesthesiologist and will involve a combination of inhaled and intravenous anesthesia.

Nessun intervento: Observational: Standard of Care

Participants will receive anesthesia and surgery as decided by their care team.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Rates of enrollment and percentage of eligible patients enrolled
Lasso di tempo: Through study completion, estimated 2 years

Each week, research assistants will compile running counts of patients screened, found eligible, and enrolled.

Through study completion, estimated 2 years
Proportion of participants completing all study visits
Lasso di tempo: Through study completion, estimated 2 years

Assistants will maintain counts of participants who complete each study visit.

Through study completion, estimated 2 years
Proportion of missing data
Lasso di tempo: Through study completion, estimated 2 years

At each visit, every study visit will be entered into our electronic database and missing items will have a separate code number.

Through study completion, estimated 2 years
Time to complete study evaluations and instruments
Lasso di tempo: Time from beginning to end of completing study instrument, up to 2 hours

Assistants will time participants while completing each study research form and will time the entire encounter.

Time from beginning to end of completing study instrument, up to 2 hours
Participant satisfaction
Lasso di tempo: At 6 month follow up

A 10 point likert scale will measure participant satisfaction. Scores range from 1-10 with higher scores indicating higher satisfaction.

At 6 month follow up
Whether Survey Instruments Can Be Eliminated due to Redundancy measured by R2 greater than 40%
Lasso di tempo: measured at 25 percent of planned enrollment and 75 percent of planned enrollment, estimated to be up to 1.5 years

Each survey instrument will be evaluated as the dependent variable in a separate linear regression with the scores of all other instruments used as predictors, along with demographic information. The adjusted R2 (explained variance) for each regression will be estimated. Any instrument where the R2 exceeds 40% will be eliminated based on the idea that little additional information is provided by including that instrument (i.e., the other surveys explain a substantial portion of the information contained within that instrument).

measured at 25 percent of planned enrollment and 75 percent of planned enrollment, estimated to be up to 1.5 years
Estimate sample size for fully powered randomized trial
Lasso di tempo: Final sample size estimate will be performed after data collection for the last patient is complete, estimated up to 2 years

For continuous variables, means and standard deviations will be estimated. For categorical variables, estimated proportions and 95% confidence intervals.

Final sample size estimate will be performed after data collection for the last patient is complete, estimated up to 2 years

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Carolinas Comfort Scale Score
Lasso di tempo: Measured at baseline, 48 hours after surgery, 2 weeks after surgery, 6 months after surgery

The Carolinas Comfort Scale measures quality of life. Possible scores range from 1-6 for each item, with higher scores indicating increased quality of life.

Measured at baseline, 48 hours after surgery, 2 weeks after surgery, 6 months after surgery
Physical Function Score
Lasso di tempo: Measured at baseline, 48 hours after surgery, 2 weeks after surgery, 6 months after surgery

The patients' ability to perform their activities of daily living will be measured with the 6 item Katz index. This scale is from 0-6, with higher scores indicating more functional independence.

Measured at baseline, 48 hours after surgery, 2 weeks after surgery, 6 months after surgery
Trail Making Test
Lasso di tempo: Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery

Trail Making Test will be used to measure cognitive function. The time to complete the trail making test is measured, with those taking greater than expected time being considered deficient.

Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery
Montreal Cognitive Assessment
Lasso di tempo: Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery

Montreal Cognitive Assessment 5 minute form to measure cognitive function. For the Montreal Cognitive Assessment, the successfully completed skills are added to achieve a final score from 0-30, with higher numbers indicating closer to normal cognitive function.

Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery
Participants with Delirium
Lasso di tempo: Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery

The Confusion Assessment Method short form consists of 5 questions, if inattention + acute onset and/or fluctuating course + Disorganized thinking and/or Altered level of consciousness are present this test is considered positive for delirium.

Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery
Pain Level
Lasso di tempo: Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery

10 point visual analog scale. Patients indicate on a scale of 0-10 their current level of pain. Higher numbers indicate higher pain.

Measured at baseline, prior to discharge, 48 hours after discharge, 2 weeks after surgery, 6 months after surgery
Postoperative complications
Lasso di tempo: Up to 2 weeks

All complications will be recorded based on VA Surgical Quality Improvement Program definitions.

Up to 2 weeks
Operative time
Lasso di tempo: Time between surgery start and surgery end measured. 1 day of surgery

The amount of time the surgery takes (minutes)

Time between surgery start and surgery end measured. 1 day of surgery
Anesthesia time
Lasso di tempo: Time spent in operating room. 1 day of surgery

The amount of time in the operating room (minutes)

Time spent in operating room. 1 day of surgery
Recovery time
Lasso di tempo: Time spent in post anesthesia care unit. 1 day of surgery

Time spent in the post anesthesia care unit and stepdown units.

Time spent in post anesthesia care unit. 1 day of surgery

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Investigatori

  • Investigatore principale: Courtney Balentine, MD, MPH, University of Wisconsin, Madison

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

23 ottobre 2024

Completamento primario (Effettivo)

31 agosto 2026

Completamento dello studio (Stimato)

1 marzo 2027

Date di iscrizione allo studio

Primo inviato

10 dicembre 2020

Primo inviato che soddisfa i criteri di controllo qualità

8 gennaio 2021

Primo Inserito (Effettivo)

12 gennaio 2021

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

2 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

1 ottobre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 2023-0980
  • SMPH/SURGERY/ENDOCRINE (Altro identificatore: UW Madison)
  • K76AG068515 (Sovvenzione/contratto NIH degli Stati Uniti)
  • Protocol Version 6/26/25 (Altro identificatore: UW Madison)
  • 2025-1446 (Altro identificatore: UW Madison - UW Health site)

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .