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Surgical Approach Affect on Post-operative Analgesic Requirement Following Laparoscopic Nephrectomy

Can Surgical Approach Affect Post-operative Analgesic Requirements Following Laparoscopic Nephrectomy: Transperitoneal Versus Retroperitoneal? A Prospective Clinical Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02622893
Enrollment
40
Registered
2015-12-07
Start date
2010-01-31
Completion date
2011-06-30
Last updated
2016-02-17

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

Conditions

Pain, Postoperative

Brief summary

Background: We performed this prospective clinical study to compare the post-operative recovery profile of our patients after transperitoneal and retroperitoneal laparoscopic nephrectomy techniques. Our primary aim was to compare post-operative epidural analgesic consumption of transperitoneal (Group T) and retroperitoneal (Group R) laparoscopic nephrectomy patients within the first 24 hours. Methods: Forty-four patients scheduled for elective transperitoneal or retroperitoneal laparoscopic nephrectomies were enrolled. All patients in both groups received epidural catheter, 2.5ml test dose of lidocaine 2% and general anesthesia induction. At the end of the surgery, patients were given 1g IV paracetamol and 10ml 0.25% bupivacaine through epidural catheters and extubated. In the post-operative care unit, patients started to receive a continuous infusion of 0,1% bupivacaine and 1µg/ml fentanyl 5ml/h with patient-controlled boluses of an additional 4ml by a patient controlled epidural analgesia (PCEA) device. They were prescribed IV tramadol 1mg/kg as a rescue analgesic (Visual analog scale (VAS)≥4). Total analgesic consumptions from PCEA devices, VAS scores at rest and during mobilization, heart rates (HRs), systolic (SBPs)/diastolic blood pressures (DBPs) at extubation (0th min-basal) and at post-operative 30th min, 2nd, 6th, 12th, 18th and 24th hours as well as number of patients who require rescue analgesic were recorded. Nausea, vomiting, time to first mobilization, return of bowel sounds and hospital stay were also documented.

Detailed description

Background: We performed this prospective clinical study to compare the post-operative recovery profile of our patients after transperitoneal and retroperitoneal laparoscopic nephrectomy techniques. Our primary aim was to compare post-operative epidural analgesic consumption of transperitoneal (Group T) and retroperitoneal (Group R) laparoscopic nephrectomy patients within the first 24 hours. Methods: Forty-four patients scheduled for elective transperitoneal or retroperitoneal laparoscopic nephrectomies were enrolled. All patients in both groups received epidural catheter, 2.5ml test dose of lidocaine 2% and general anesthesia induction. At the end of the surgery, patients were given 1g IV paracetamol and 10ml 0.25% bupivacaine through epidural catheters and extubated. In the post-operative care unit, patients started to receive a continuous infusion of 0,1% bupivacaine and 1µg/ml fentanyl 5ml/h with patient-controlled boluses of an additional 4ml by a patient controlled epidural analgesia (PCEA) device. They were prescribed IV tramadol 1mg/kg as a rescue analgesic (Visual analog scale (VAS)≥4). Total analgesic consumptions from PCEA devices, VAS scores at rest and during mobilization, heart rates (HRs), systolic (SBPs)/diastolic blood pressures (DBPs) at extubation (0th min-basal) and at post-operative 30th min, 2nd, 6th, 12th, 18th and 24th hours as well as number of patients who require rescue analgesic were recorded. Nausea, vomiting, time to first mobilization, return of bowel sounds and hospital stay were also documented. 0th and 30th min follow-ups were recorded in PACU and patients were passed on to ward nurses. Researchers who follow the patients at PACU and on the ward were all blinded to the surgical techniques.

Interventions

DRUGTransperitoneal laparoscopic nephrectomy

After the surgery: 10 ml 0.25% bupivacaine through epidural catheters before extubation and continuous infusion of 0,1% bupivacaine and 1 µg/ml fentanyl 5 ml/h with patient-controlled boluses of an additional 4 ml, with a lockout time of 20 min and 4-h limit of 30 ml by a patient controlled epidural analgesia (PCEA) device

DRUGRetroperitoneal laparoscopic nephrectomy

After the surgery: 10 ml 0.25% bupivacaine through epidural catheters before extubation and continuous infusion of 0,1% bupivacaine and 1 µg/ml fentanyl 5 ml/h with patient-controlled boluses of an additional 4 ml, with a lockout time of 20 min and 4-h limit of 30 ml by a patient controlled epidural analgesia (PCEA) device

Sponsors

Istanbul University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* American Society of Anesthesiologists (ASA) physical status I-II * Scheduled for elective transperitoneal or retroperitoneal laparoscopic nephrectomy

Exclusion criteria

* Serious heart or respiratory failure * Difficulty understanding the instructions for using the anesthetic infusion pump and/or pain scales * Contraindications to regional anesthesia (e.g., allergy to a local anesthetics, local infection, increased intracranial pressure and coagulopathy) * Significant neurologic disorders of the lower extremity * Psychiatric or cognitive disorders * History of substance abuse * Chronic opioid use * Patients having open nephrectomy

Design outcomes

Primary

MeasureTime frameDescription
Total epidural analgesic consumptionup to 24 hoursTotal epidural analgesic (bupivacaine and fentanyl) consumption from patient controlled epidural analgesia (PCEA) devices

Secondary

MeasureTime frameDescription
Number of patients who require rescue analgesicup to 24 hoursNumber of patients who require IV tramadol (1 mg/kg) as a rescue analgesic besides PCEA use
Hemodynamic parametersup to 24 hoursPostoperative heart rates (HRs), systolic (SBPs)/diastolic blood pressures (DBPs)
Visual analog scale (VAS) scoresup to 24 hoursVisual analog scale (VAS) scores at rest and during mobilization

Other

MeasureTime frameDescription
Complicationsup to 24 hoursNausea, vomiting
Time to first mobilizationup to 24 hoursTime to first mobilization
Return of bowel sounds/oral intakethrough study completion, an average of 1 weekPost-operative oral intake starts just after the return of bowel sounds (almost at the same time), will be assessed as hours (time to return of bowel sounds)
Hospital staythrough study completion, an average of 1 weekHospitalisation

Countries

Turkey (Türkiye)

Outcome results

None listed

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