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Pilotażowe badanie znieczulenia miejscowego w chirurgii przepukliny pachwinowej u osób starszych

1 października 2026 zaktualizowane przez: 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.

Przegląd badań

Status

Aktywny, nie rekrutujący

Warunki

Interwencja / Leczenie

Szczegółowy opis

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.

Typ studiów

Interwencyjne

Zapisy (Rzeczywisty)

18

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

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

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

60 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Tak

Płeć kwalifikująca się do nauki

Wszystko

Opis

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

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Pojedynczy

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: 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.

Aktywny komparator: 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.

Brak interwencji: Observational: Standard of Care

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

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Rates of enrollment and percentage of eligible patients enrolled
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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%
Ramy czasowe: 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
Ramy czasowe: 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

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Carolinas Comfort Scale Score
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: Up to 2 weeks

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

Up to 2 weeks
Operative time
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Współpracownicy

Śledczy

  • Główny śledczy: Courtney Balentine, MD, MPH, University of Wisconsin, Madison

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

23 października 2024

Zakończenie podstawowe (Rzeczywisty)

31 sierpnia 2026

Ukończenie studiów (Szacowany)

1 marca 2027

Daty rejestracji na studia

Pierwszy przesłany

10 grudnia 2020

Pierwszy przesłany, który spełnia kryteria kontroli jakości

8 stycznia 2021

Pierwszy wysłany (Rzeczywisty)

12 stycznia 2021

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

2 października 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

1 października 2026

Ostatnia weryfikacja

1 października 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • 2023-0980
  • SMPH/SURGERY/ENDOCRINE (Inny identyfikator: UW Madison)
  • K76AG068515 (Grant/umowa NIH USA)
  • Protocol Version 6/26/25 (Inny identyfikator: UW Madison)
  • 2025-1446 (Inny identyfikator: UW Madison - UW Health site)

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .