Spinal Anesthesia For Enhanced Recovery After Liver Surgery
SAFER-L
Spinal Anesthesia for Enhanced Recovery After Liver Surgery
1 other identifier
interventional
128
1 country
1
Brief Summary
This project proposes to compare epidural versus spinal anesthesia in patients having liver resection surgery. The investigators hypothesize that spinal anesthesia will result in improved blood pressure control postoperatively and reduce the amount of intravenous fluids required after surgery. Spinal anesthesia is expected to provide the same pain control benefits as epidurals, with faster recovery of function. Spinal anesthesia may be a simple and effective way to improve and enhance the recovery in the increasing number of patients requiring liver resection.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2018
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 4, 2018
CompletedFirst Submitted
Initial submission to the registry
October 15, 2018
CompletedFirst Posted
Study publicly available on registry
October 23, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2031
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2031
February 5, 2026
February 1, 2026
12.8 years
October 15, 2018
February 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Cumulative 72-hour volume of intravenous fluids and blood products administered
Intraoperative plus cumulative postoperative intravenous (IV) fluid volume administered, total (mL) = sum of volumes of IV crystalloid, IV colloid, and non-albumin blood products (packed red blood cells \[pRBC\], fresh-frozen plasma \[FFP\], and platelets) administered
Intraoperatively and during the first 72 hours postoperatively or until hospital discharge, whichever occurs earlier
Area under the curve over 72 hours of the summed pain intensity difference scores at rest (AUC-SPID-PAR_0-72h)
Numerical Rating Scale (NRS) Summed Pain Intensity Difference at rest (SPID-PAR) (calculated as Area Under the Curve \[AUC\] using the trapezoidal rule) over 0 to 72 hours (AUC-SPID-PAR\_0-72h) after surgery. Pain intensity (PI) is assessed preoperatively and at 2, 6-12, 24, 36, 48, 60, and 72 hours after surgery or until hospital discharge, whichever came first, using the 11-point Numerical Rating Scale (NRS) on a scale from 0 to 10, where 0 represents the absence of pain and 10 is the "worst possible pain". Pain intensity difference (PID\_t) is calculated as the difference in pain intensity from time 0 to each time point t. SPID\_t is calculated using the trapezoidal rule as the area under the curve (AUC) for Pain Intensity Difference over the time interval 0 to t hours, respectively, divided by the length of the time interval (t hours). A positive value is a decrease (improvement) of the pain.
72 hours after surgery or until hospital discharge, whichever occurs earlier
Cumulative 72-hour opioid consumption (OC_0-72h)
Total perioperative epidural, intravenous, and oral opioid requirements measured in oral morphine equivalents (OME, mg).
Intraoperatively and during the first 72 hours postoperatively or until hospital discharge, whichever occurs earlier
Secondary Outcomes (23)
Vasopressor-free days to day 30
During index hospital admission (censored at the earliest of hospital discharge, in-hospital death, or 30 days postoperatively)
Cumulative intraoperative vasopressor and/or inotrope consumption
Intraoperatively (from anesthesia start time to anesthesia end time)
Cumulative perioperative vasopressor and/or inotrope consumption
Intraoperatively and during the first 7 days after surgery or until hospital discharge, whichever occurs earlier
Cumulative 72-hour volume of intravenous fluids administered
Intraoperatively and during the first 72 hours postoperatively
Area under the curve over 72 hours of the summed pain intensity difference scores of movement-evoked pain (MEP) (AUC-SPID-MEP_0-72h)
72 hours after surgery or until hospital discharge, whichever occurs earlier
- +18 more secondary outcomes
Other Outcomes (6)
Cumulative 24-hour volume of intravenous fluids and blood products administered
Intraoperatively and during the first 24 hours postoperatively
Area under the curve (AUC) over 24 hours of the summed pain intensity difference (SPID) scores at rest (AUC-SPID-PAR_0-24h)
24 hours after surgery
Cumulative 24-hour (IV) opioid consumption (OC_0-24h)
Intraoperatively and during the first 24 hours postoperatively or until hospital discharge, whichever occurs earlier
- +3 more other outcomes
Study Arms (2)
Intrathecal morphine
EXPERIMENTALSpinal anesthesia with intrathecal morphine Bolus (pre-induction): High-spinal anesthesia with 0.25 mg⋅kg-¹ hyperbaric bupivacaine 0.75% plus 3 mcg⋅kg-¹ intrathecal morphine (preservative-free) Postoperative analgesia: IV-PCA hydromorphone (bolus: 0.2 mg \[range: 0.1-0.4 mg\]; 5 min lockout; no infusion)
Thoracic epidural analgesia
ACTIVE COMPARATORContinuous thoracic epidural analgesia Bolus (pre-induction): 0.25 mg⋅kg-¹ bupivacaine 0.25% plus 1 mcg⋅kg-¹ hydromorphone (0.1 mL⋅kg-¹) Infusion (initial): 0.25 mg⋅kg-¹⋅h-¹ bupivacaine 0.25% plus 1 mcg⋅kg-¹⋅h-¹ hydromorphone (0.1 mL⋅kg-¹⋅h-¹) Infusion (range): 0.19-0. 3 mg⋅kg-¹⋅h-¹ bupivacaine 0.25% plus 0.75-1.25 mcg⋅kg-¹⋅h-¹ hydromorphone (0.075-0.125 mL⋅kg-¹⋅h-¹) (3-10 mL⋅h-¹) Postoperative analgesia: (1) Epidural solution, bupivacaine 0.125% with hydromorphone 10 mcg·mL-¹, infusion range as above (0.075-0.125 mL⋅kg-¹⋅h-¹) (3-10 mL⋅h-¹), continued for a maximum of 72 h postoperatively; (2) IV-PCA hydromorphone (bolus: 0.2 mg \[range: 0.1-0.4 mg\]; 5 min lockout; no infusion).
Interventions
Needle/catheter: 17 Ga. × 80 mm Tuohy epidural needle (Perican®, B. Braun Medical Inc., Bethlehem, PA, USA); Arrow FlexTip Plus® 19 Ga. epidural catheter (Arrow International Inc., Reading, PA, USA) Level of insertion and patient positioning: T6-T8, upright sitting position for insertion of needle and catheter (to 5 cm beyond loss-of-resistance point) and for injection of test dose (3 mL 2% lidocaine with epinephrine 1:200,000); supine for injection of bolus dose Confirmation of correct placement: Loss of resistance to air or saline; negative aspiration of the epidural catheter; negative test dose; and ease of injection of an initial bolus dose
Needle/catheter: 25 Ga. × 90 mm high-flow Whitacre spinal needle (Becton-Dickinson, Franklin Lakes, NJ, USA) Level of insertion and patient positioning: L2-L3, lateral decubitus position during injection; immediately post-injection, patient is placed supine in \<5% degree of Trendelenburg Confirmation of correct placement: Aspiration of cerebrospinal fluid
0.25 mg⋅kg-¹ hyperbaric bupivacaine 0.75%
3 mcg⋅kg-¹ intrathecal morphine (preservative-free)
0.25 mg⋅kg-¹ bupivacaine 0.25%
Epidural solution, bupivacaine 0.125% with hydromorphone 10 mcg·mL-¹, infusion range 0.075-0.125 mL⋅kg-¹⋅h-¹
Epidural solution, bupivacaine 0.125% with hydromorphone 10 mcg·mL-¹, infusion range 0.075-0.125 mL⋅kg-¹⋅h-¹
Eligibility Criteria
You may qualify if:
- Male or female, Adults aged ≥ 18 years (there will be no upper age restriction);
- American Society of Anesthesiologists Physical Status classification (ASA-PS) of I to III;
- Undergoing subcostal or midline laparotomy for elective liver resection surgery under general anesthesia; if the planned procedure is a combined operation (i.e., concomitant extrahepatic surgery) , the associated procedure should not add more than one hour to the surgical time of the primary hepatic resection procedure alone;
- Stated willingness to comply with all study procedures and availability for the duration of the study
- Provision of signed and dated informed consent form
- Body mass index (BMI) between 17 and 40 kg·m-², inclusive;
- Negative result on serum pregnancy test at Screening and negative urine pregnancy test at Baseline (for women of childbearing potential, defined as those who have not undergone a hysterectomy or been postmenopausal for at least 12 consecutive months); and not currently breastfeeding, or planning to do so within 7 d following surgery;
- Stated willingness and ability to comply with all study and/or follow-up evaluations and communicate clearly with the Investigator and staff; and
- Voluntary participation and ability to provide written informed consent prior to any study procedures.
You may not qualify if:
- Emergency surgery;
- Age \< 18 years;
- Planned laparoscopic hepatic resection;
- Planned laparotomy incision other than (right) subcostal, midline, or extended midline;
- Patients with obvious non-resectable disease prior to signing informed consent;
- Liver transplant recipient or previous hepatic resection or living-donor hepatectomy surgery;
- Major surgery (open abdominal and/or thoracic) under general anesthesia ≤ 30 d preoperatively;
- Contraindications to neuraxial (spinal or epidural) anesthesia: (a) anticipated difficult intubation; (b) coagulation or hemostatic abnormalities within 30 d of surgery (defined as thrombocytopenia \[platelet count \< 100 × 10⁹ L-¹\]; INR \> 1.4; or activated partial thromboplastin time \[aPTT\] \> 40 s); (c) bleeding diathesis; (d) ongoing use (≤ 7 d before surgery) or planned perioperative use of antiplatelet agents (apart from acetylsalicylic acid 81 mg) or anticoagulants (excluding deep-vein thrombosis prophylaxis); (e) recent (≤ 30 d preoperatively) systemic infection or current (≤ 48 h) fever (≥ 38.4 °C), or evidence of infection (including superficial cutaneous infection in the thoracic and/or lumbar regions); (f) history of neurologic disorder affecting the spinal cord or the hemithorax or below; or impaired bladder/bowel function; (g) acute or subacute (≤ 90 d preoperatively) intracranial hemorrhage; or (h) technical contraindications to epidural placement: (i) local skin or soft tissue infection at proposed site for thoracic epidural insertion; (ii) previous cervicothoracic, thoracic, or thoracolumbar spinal surgery; (iii) history of spinal tumor, fracture or infection; or (iv) recent (≤ 14 d preoperatively) epidural corticosteroid injection;
- Significant cardiac arrhythmias (including pacemaker-dependence) or clinically significant cardiovascular disease (New York Heart Association \[NYHA\] functional classification III-IV);
- Volume overload (hyperhydration), particularly in cases of pulmonary edema or acute decompensated congestive heart failure (CHF);
- Acute kidney injury (AKI) and/or chronic kidney disease (CKD) based on the 2012 Kidney Disease Improving Global Outcomes (KDIGO) AKI (excluding the oliguria criterion) and CKD guideline definitions: AKI: increase in serum creatinine (SCr) (≥ 26.5 μmol·L-¹ within 48 h or ≥ 1.5× baseline within 7 d); CKD: abnormalities of kidney structure or function, present for \> 3 mo, defined as either of the following present for \> 3 mo: (1) ≥ 1 marker(s) of kidney damage: (a) albuminuria (24-h albumin-creatinine ratio \[ACR\] ≥ 30 mg·g-¹ \[≥ 3 mg·mmol-¹\]), (b) urine sediment abnormalities, (c) electrolyte and other abnormalities due to tubular disorders, (d) abnormalities detected by histology, (e) structural abnormalities detected by imaging, (f) history of kidney transplantation; and/or decreased glomerular filtration rate (GFR \< 60 mL-¹·min-¹·1.73 m-², estimated using the 2009 CKD-EPI creatinine equation \[eGFR\_creat\]);
- Severe hypernatremia (\[Na⁺\] ≥ 155 mmol·L-¹) and/or hyperchloremia (\[Cl-\] ≥ 125 mmol·L-¹);
- Chronic pain; current (≤ 30 d preoperatively) and/or prior chronic (for a period of ≥ 90 d) opioid use; or history of alcohol, opiate, and/or other drug abuse or dependence;
- Use of supraphysiologic glucocorticoid (GC) doses (≥ 7.5 mg·day-¹ of prednisone or equivalent): recent (≤ 30 d), prolonged (\> 2 consecutive weeks), or multiple courses totalling \> 3 weeks in the preceding 6 months;
- Known allergy or sensitivity (e.g., glucose-6-phosphate dehydrogenase \[G6PD\] deficiency) to amide local anesthetics, opioids, or acetaminophen, or hypersensitivity to other materials to be used in the study (e.g., latex \[epidural catheter adapter\], epidural dressing or tape); or
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Manitoba
Winnipeg, Manitoba, R3E 0Z2, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Alex Grunfeld, MD
University of Manitoba
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
October 15, 2018
First Posted
October 23, 2018
Study Start
October 4, 2018
Primary Completion (Estimated)
July 31, 2031
Study Completion (Estimated)
December 31, 2031
Last Updated
February 5, 2026
Record last verified: 2026-02