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Cryoablation of Intercostal Nerves for Post-Operative Pain Management in Opioid-Tolerant Patients

Not Applicable
Conditions
Pain
Pain, Postoperative
Interventions
Device: cryoSPHERE Ablation
Registration Number
NCT05276258
Lead Sponsor
The Methodist Hospital Research Institute
Brief Summary

The main objective study is to compare the use of the cryoSPHERE probe to the standard-of-care method for pain management of patients receiving robotic-assisted thoracoscopic surgery, including reductions in opioid pain medication use and the development of post-surgical morbidity.

Detailed Description

Patients who take more opioid medications after surgery tend to have longer hospital stays, and they are at risk of developing pneumonia and other postoperative morbidities. Opioid-tolerant patients are at a higher risk of developing these morbidities because they often require higher doses of opioid medications to manage their post-operative pain. Reducing post-operative pain in these patients through non-opioid means helps reduce their risk of developing morbidities, and is potentially a more effective form of pain management, particularly in this patient population.

This is a single-center, prospective cohort registry with a historical control, and an estimated duration of 2 years. This study's primary objective is to evaluate the cryoSPHERE probe for ablation in pain control after surgery (measured using opioid medication). The secondary objectives are the evaluation of morbidities, length of stay, cost, and incidence of neuroma formation.

We plan to recruit 75 patients who will receive the cryoSPHERE probe and compare them to 75 patients who did not receive the cryoSPHERE probe. The experimental group will receive cryoSPHERE ablation of intercostal nerves and liposomal bupivacaine. The historical control group will have had robotic-assisted thoracoscopic surgery and an intercostal nerve block with liposomal bupivacaine and no cyroSPHERE probe.

Recruitment & Eligibility

Status
ENROLLING_BY_INVITATION
Sex
All
Target Recruitment
75
Inclusion Criteria
  • Male and female patients 18-90 years of age
  • Diagnosis requiring robotic-assisted thoracoscopic surgery
  • Daily opioid use for at least 30 days consecutively at any point during the last 12 months prior to surgery or using opioids at the time of study enrollment
  • Experimental group only: agreement and consent to comply with all aspects of the study protocol and data collection, including follow-up contact.
Exclusion Criteria
  • Previous major surgery at the operative site (thoracotomy)
  • Allergy to aluminum
  • Allergy to plastics
  • Allergy to bupivacaine
  • Shingles disease
  • Demyelinating illnesses
  • Involvement with other interventional studies

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Nerve Block Using Liposomal Bupivacaine and cryoSPHERE AblationcryoSPHERE AblationThe experimental group (75 participants) will undergo intercostal nerve block using liposomal bupivacaine and the cryoSPHERE ablation of intercostal nerves during robotic-assisted thoracoscopic operation at Houston Methodist Hospital.
Nerve Block Using Liposomal Bupivacaine and cryoSPHERE AblationBupivacaineThe experimental group (75 participants) will undergo intercostal nerve block using liposomal bupivacaine and the cryoSPHERE ablation of intercostal nerves during robotic-assisted thoracoscopic operation at Houston Methodist Hospital.
Historical ControlsBupivacaineA total of 75 propensity score-matched historical controls will be selected from the pool of patients who had standard intercostal nerve block using liposomal bupivacaine alone at Houston Methodist Hospital from January 1, 2017 through January 1, 2022, inclusively.
Primary Outcome Measures
NameTimeMethod
Opioid Use Within 24 Hours After Chest Tube RemovalFrom the time of chest tube removal to 24 hours after chest tube removal

Opioid use measured as the daily dose of milligram morphine equivalents (MME)

Secondary Outcome Measures
NameTimeMethod
Total Emergent Adverse Effects (TEAE)Time of discharge (up to 1 year after surgery), 5 weeks after surgery, 3 months after surgery, and 6 months after surgery

Morbidity, defined as total emergent adverse effects (TEAE) for the experimental group vs. control

Opioid Use after SurgeryDay 1 after surgery, day 3 after surgery, 5 weeks after surgery, 3 months after surgery

Mean daily opioid use after surgery measured in milligram morphine equivalents (MME)

Mean Cost of Hospital CareFrom admission to discharge or death, up to 1 year after surgery

Total cost of billed medical care for the surgery

PROMIS8a Pain InterferenceTime of discharge (up to 1 year after surgery), 5 weeks after surgery, 3 months after surgery, and 6 months after surgery

Patient's perceived pain interference level on a scale of 8-40, per PROMIS Pain Interference Adult Form

Number of ReadmissionsFrom initial admission for surgery to 28 days after surgery

The number of readmissions to the hospital

Length of Hospital StayFrom admission to discharge or death, up to 1 year after surgery

Time spent in the hospital from admission for surgery until discharge or death

Neuroma FormationTime of discharge (up to 1 year after surgery), 3 months after surgery, and 6 months after surgery

The formation of a neuroma around the site of nerve block administration

Pain ScoreTime of discharge (up to 1 year after surgery), 5 weeks after surgery, 3 months after surgery, and 6 months after surgery

Patient's perceived pain level on a scale of 1 to 10

PROMIS3a Pain IntensityTime of discharge (up to 1 year after surgery), 5 weeks after surgery, 3 months after surgery, and 6 months after surgery

Patient's perceived pain level on a scale of 3-15, per PROMIS Pain Intensity Short Form 3a v1.0

Trial Locations

Locations (1)

Houston Methodist Research Institute

🇺🇸

Houston, Texas, United States

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