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Deep Versus Moderate Muscle Relaxation During Laparoscopic Donor Nephrectomy in Enhancing Postoperative Recovery

The Effectiveness of Deep Versus Moderate Muscle Relaxation During Laparoscopic Donor Nephrectomy in Enhancing Postoperative Recovery

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02838134
Acronym
RELAX
Enrollment
101
Registered
2016-07-20
Start date
2016-11-30
Completion date
2017-12-02
Last updated
2019-09-19

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

Conditions

Neuromuscular Block, Renal Transplant Donor of Left Kidney, Renal Transplant Donor of Right Kidney, Surgery

Keywords

Laparoscopic donor nephrectomy, Early quality of recovery

Brief summary

Postoperative recovery after live donor nephrectomy (LDN) is largely determined by the consequences of postoperative pain and analgesia consumptions. The investigators' goal is to establish the relationship between the use of deep neuromuscular blockade (NMB) during laparoscopic donor nephrectomy (LDN) and the early quality of recovery. Therefore, the investigators designed a trial in which patients scheduled for living donor nephrectomy are randomized into a group with deep NMB or moderate NMB. The primary outcome measurement will be the Quality of Recovery-40 questionnaire (overall score) at 48 hours after extubation.

Detailed description

Rationale: Postoperative recovery after live donor nephrectomy (LDN) is largely determined by the consequences of postoperative pain and analgesia consumptions. The use of deep neuromuscular blockade (NMB) has shown to reduce postoperative pain scores after laparoscopic surgery. With this study the investigators will investigate if deep NMB also improves the early quality of recovery after LDN. Objective: To establish the relationship between the use of deep neuromuscular blockade (NMB) during laparoscopic donor nephrectomy (LDN) - with standard pressure pneumoperitoneum - and the early quality of recovery. Study design: A multicenter, blinded, randomized controlled trial Study population: 96 adult patients (18 years or older), scheduled for living donor nephrectomy, will be randomized into a group with deep or moderate neuromuscular blockade. Deep neuromuscular blockade is defined as post tetanic count 1-2. Main study parameters/endpoints: The primary outcome measurement will be the Quality of Recovery-40 questionnaire (overall score) at 48 hours after extubation. Secondary outcomes measured are: intra-operative parameters (e.g. surgical conditions, operation time, length of pneumoperitoneum, first warm ischemia time, estimated blood loss, conversion to open or hand-assisted donor nephrectomy, intra-operative complications, cumulative use of rocuronium and sugammadex), the total score of the quality of Recovery-40 questionnaire at 48 hours after extubation, post-operative pain (components of pain scores); postoperative nausea and vomiting (NRS), the cumulative use of analgesics and anti-emetics, time to reach discharge criteria and postoperative complications.

Interventions

OTHERRocuronium

A bolus of 0.7 mg/kg rocuronium is administered just after tracheal intubation and then an infusion of rocuronium (0.3 to 0.4 mg/kg) is started when post-tetanic count (PTC) is more than 0 and titrated towards PTC 1-2.

OTHERNo additional Rocuronium

No additional rocuronium is administered after tracheal intubation.

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Radboud University Medical Center
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

All adult individuals, who are scheduled for living kidney donation. Inclusion Criteria: * obtained informed consent * age over 18 years

Exclusion criteria

* insufficient control of the Dutch language to read the patient information and to fill out the questionnaires * chronic use of analgesics or psychotropic drugs * use of NSAIDs shorter than 5 days before surgery * known or suspect allergy to rocuronium of sugammadex * neuromuscular disease * indication for rapid sequence induction * deficiency of vitamin K-dependent clotting factors, coagulopathy or active use of coumarin derivates. * Peri-operative use of fusidic acid or flucloxacillin * Severe renal impairment (creatinine clearance \<30ml/min) * Morbid obesity (BMI\>35 kg/m2)

Design outcomes

Primary

MeasureTime frameDescription
Total Score of the Quality of Recovery-40 Questionnaire (QoR-40)Day 1: 24 hours after detubationThe QoR-40 is a validated assessment tool for measuring a patient's self-assessed quality of recovery after surgery. It consists of 40 questions measuring 5 dimensions: patient support, comfort, emotions, physical independence and pain. Each item is rated on a scale of 1 to 5, giving a minimal score of 40 and a maximum score of 200. Higher values represent a better outcome

Secondary

MeasureTime frameDescription
Surgical ConditionsDay 0: Intraoperative, average of scores up to 240 minutes (assessed each 15 minutes)Surgical rating score, concerning the quality of the surgical field, scored with the surgical rating scale (SRS) A likert scale from 1 to 5. Higher scores represent better outcomes. 1. = extremely poor conditions 2. = poor conditions 3. = acceptable conditions 4. =good conditions 5. = optimal conditions
Length of PneumoperitoneumDay 0: once, up to 240 minutesIntraoperative parameter of duration of pneumoperitoneum
Warm Ischemia TimeDay 0: once, up to 240 minutesIntraoperative parameter measuring the time (in minutes) between dissection of the renal artery and flushing of the kidney after retrieval
Estimated Blood LossDay 0: once, up to 240 minutesIntraoperative parameter
Intra-operative ComplicationsDay 0: once, up to 240 minutesNumber of Participants with Complications which occurred during surgery
ConversionDay 0: once, up to 240 minutesNumber of Participants with conversion to open or hand-assisted donor nephrectomy
Total Score of the Quality of Recovery-40 QuestionnaireDay 2: 48 hours after detubationThe QoR-40 is a validated assessment tool for measuring a patient's self-assessed quality of recovery after surgery. It consists of 40 questions measuring 5 dimensions: patient support, comfort, emotions, physical independence and pain. Each item is rated on a scale of 1 to 5, giving a minimal score of 40 and a maximum score of 200. Higher values represent a better outcome.
Postoperative PainDay 0: 1h, 6h, day 1: 24h and day 2: 48 hours (and if still admitted 72h) after detubationcomponents of pain scores after 1 hour, 6 hours, on postoperative day 1 (POD1) and postoperative day 2 (POD2). Likert scale from 0 to 10. Higher scores represent more pain.
Postoperative Complications24 and 48 hours (and if still admitted 72h) after detubation and 4 and 8 weeks after surgeryNumber of participants with postoperative complications that occurred up to 8 weeks after surgery
Discharge Criteria24 and 48 hours after detubationScoring the following criteria: adequate pain control with oral medication, passage of flatus or defecation, intake of solid food tolerated, patient is mobilized and independent and patient accepts discharge.
Pain Scoresonce, 4 weeks after surgeryTotal amount of pain 4 weeks after surgery Likert scale from 0 to 10. Higher scores represent more pain (worse outcome).
Cumulative Use of RocuroniumDay 0: once, up to 240 minutesTotal amount of rocuronium administered during surgery

Countries

Netherlands

Participant flow

Pre-assignment details

26 patients were assessed for eligibility but excluded, 8 patients did not meet the inclusion criteria 18 patients declined to participate

Participants by arm

ArmCount
Group A: Deep Neuromuscular Blockade
An extra bolus of rocuronium after intubation followed by infusion Rocuronium: A bolus of 0.7 mg/kg rocuronium is administered just after tracheal intubation and then an infusion of rocuronium (0.3 to 0.4 mg/kg) is started when PTC is more than 0 and titrated towards PTC 1-2.
48
Group B: Moderate Neuromuscular Blockade
Moderate neuromuscular Blockade No additional rocuronium after intubation. No additional Rocuronium: No additional rocuronium is administered after tracheal intubation.
48
Total96

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Studylogistic problems11
Overall StudyLost to Follow-up12

Baseline characteristics

CharacteristicGroup B: Moderate Neuromuscular BlockadeTotalGroup A: Deep Neuromuscular Blockade
Age, Continuous56.6 years
STANDARD_DEVIATION 9.7
56.1 years
STANDARD_DEVIATION 9.9
55.7 years
STANDARD_DEVIATION 10.2
BMI26.5 kg/m2
STANDARD_DEVIATION 3
26.6 kg/m2
STANDARD_DEVIATION 3
26.7 kg/m2
STANDARD_DEVIATION 2.9
Centre
LUMC
10 Participants23 Participants13 Participants
Centre
Radboud
38 Participants73 Participants35 Participants
Previous abdominal surgery10 Participants23 Participants13 Participants
Previous pregnancies21 Participants42 Participants21 Participants
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
24 Participants51 Participants27 Participants
Sex: Female, Male
Male
24 Participants45 Participants21 Participants
Side of nephrectomy
Left
42 Participants84 Participants42 Participants
Side of nephrectomy
Right
6 Participants12 Participants6 Participants
Vascular anatomy (more than one renel artery or renal vein)17 Participants30 Participants13 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 480 / 48
other
Total, other adverse events
9 / 485 / 48
serious
Total, serious adverse events
0 / 481 / 48

Outcome results

Primary

Total Score of the Quality of Recovery-40 Questionnaire (QoR-40)

The QoR-40 is a validated assessment tool for measuring a patient's self-assessed quality of recovery after surgery. It consists of 40 questions measuring 5 dimensions: patient support, comfort, emotions, physical independence and pain. Each item is rated on a scale of 1 to 5, giving a minimal score of 40 and a maximum score of 200. Higher values represent a better outcome

Time frame: Day 1: 24 hours after detubation

Population: Explanation of missing data:~One patient from group A missed one page of the QOR-40 questionnaire on postoperative day 1.~One patient from group B did not complete the questionnaires on postoperative days 1 and 2 because of personal circumstances

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeTotal Score of the Quality of Recovery-40 Questionnaire (QoR-40)169.3 score on a scaleStandard Deviation 18.3
Group B: Moderate Neuromuscular BlockadeTotal Score of the Quality of Recovery-40 Questionnaire (QoR-40)169.5 score on a scaleStandard Deviation 15.5
Secondary

Conversion

Number of Participants with conversion to open or hand-assisted donor nephrectomy

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group A: Deep Neuromuscular BlockadeConversion0 Participants
Group B: Moderate Neuromuscular BlockadeConversion2 Participants
Secondary

Cumulative Use of Rocuronium

Total amount of rocuronium administered during surgery

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeCumulative Use of Rocuronium184.6 mgStandard Deviation 83.1
Group B: Moderate Neuromuscular BlockadeCumulative Use of Rocuronium67.0 mgStandard Deviation 41.2
Secondary

Discharge Criteria

Scoring the following criteria: adequate pain control with oral medication, passage of flatus or defecation, intake of solid food tolerated, patient is mobilized and independent and patient accepts discharge.

Time frame: 24 and 48 hours after detubation

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group A: Deep Neuromuscular BlockadeDischarge Criteriareached all criteria after 24hours13 Participants
Group A: Deep Neuromuscular BlockadeDischarge Criteriareached all criteria after 48 hours24 Participants
Group B: Moderate Neuromuscular BlockadeDischarge Criteriareached all criteria after 24hours15 Participants
Group B: Moderate Neuromuscular BlockadeDischarge Criteriareached all criteria after 48 hours29 Participants
Secondary

Estimated Blood Loss

Intraoperative parameter

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeEstimated Blood Loss60.2 mlStandard Deviation 68.5
Group B: Moderate Neuromuscular BlockadeEstimated Blood Loss69.1 mlStandard Deviation 72.3
Secondary

Intra-operative Complications

Number of Participants with Complications which occurred during surgery

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group A: Deep Neuromuscular BlockadeIntra-operative Complications1 Participants
Group B: Moderate Neuromuscular BlockadeIntra-operative Complications6 Participants
Secondary

Length of Pneumoperitoneum

Intraoperative parameter of duration of pneumoperitoneum

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeLength of Pneumoperitoneum122.8 minutesStandard Deviation 44.5
Group B: Moderate Neuromuscular BlockadeLength of Pneumoperitoneum113.8 minutesStandard Deviation 39.2
Secondary

Pain Scores

Total amount of pain 4 weeks after surgery Likert scale from 0 to 10. Higher scores represent more pain (worse outcome).

Time frame: once, 4 weeks after surgery

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadePain Scores1.88 score on a scaleStandard Deviation 1.91
Group B: Moderate Neuromuscular BlockadePain Scores1.85 score on a scaleStandard Deviation 1.92
Secondary

Postoperative Complications

Number of participants with postoperative complications that occurred up to 8 weeks after surgery

Time frame: 24 and 48 hours (and if still admitted 72h) after detubation and 4 and 8 weeks after surgery

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group A: Deep Neuromuscular BlockadePostoperative Complicationsduring hospital stay2 Participants
Group A: Deep Neuromuscular BlockadePostoperative Complications30 days after surgery7 Participants
Group A: Deep Neuromuscular BlockadePostoperative Complications60 days after surgery9 Participants
Group B: Moderate Neuromuscular BlockadePostoperative Complicationsduring hospital stay4 Participants
Group B: Moderate Neuromuscular BlockadePostoperative Complications30 days after surgery5 Participants
Group B: Moderate Neuromuscular BlockadePostoperative Complications60 days after surgery5 Participants
Secondary

Postoperative Pain

components of pain scores after 1 hour, 6 hours, on postoperative day 1 (POD1) and postoperative day 2 (POD2). Likert scale from 0 to 10. Higher scores represent more pain.

Time frame: Day 0: 1h, 6h, day 1: 24h and day 2: 48 hours (and if still admitted 72h) after detubation

Population: 1 patient from the moderate NMB group was not able to complete the questionnaires on day 1 and day 2 because of personal circumstances.

ArmMeasureGroupValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadePostoperative PainOverall_1h (PACU)4.0 score on a scaleStandard Deviation 2.3
Group A: Deep Neuromuscular BlockadePostoperative PainReferred pain_1h (PACU)0.0 score on a scaleStandard Deviation 0.2
Group A: Deep Neuromuscular BlockadePostoperative Painoverall_6h3.7 score on a scaleStandard Deviation 2.7
Group A: Deep Neuromuscular BlockadePostoperative PainReferred pain_6h0.7 score on a scaleStandard Deviation 1.6
Group A: Deep Neuromuscular BlockadePostoperative PainOverall_POD15.0 score on a scaleStandard Deviation 2.3
Group A: Deep Neuromuscular BlockadePostoperative PainReferred pain+POD12.5 score on a scaleStandard Deviation 2.7
Group A: Deep Neuromuscular BlockadePostoperative PainOverall_POD24.6 score on a scaleStandard Deviation 1.9
Group A: Deep Neuromuscular BlockadePostoperative PainReferred pain_POD22.4 score on a scaleStandard Deviation 2.7
Group B: Moderate Neuromuscular BlockadePostoperative PainReferred pain_POD23.3 score on a scaleStandard Deviation 2.9
Group B: Moderate Neuromuscular BlockadePostoperative PainOverall_1h (PACU)4.31 score on a scaleStandard Deviation 2.4
Group B: Moderate Neuromuscular BlockadePostoperative PainOverall_POD15.6 score on a scaleStandard Deviation 2.1
Group B: Moderate Neuromuscular BlockadePostoperative PainReferred pain_1h (PACU)0.3 score on a scaleStandard Deviation 1.1
Group B: Moderate Neuromuscular BlockadePostoperative PainOverall_POD24.9 score on a scaleStandard Deviation 2.2
Group B: Moderate Neuromuscular BlockadePostoperative Painoverall_6h4.5 score on a scaleStandard Deviation 2.2
Group B: Moderate Neuromuscular BlockadePostoperative PainReferred pain+POD13.2 score on a scaleStandard Deviation 2.8
Group B: Moderate Neuromuscular BlockadePostoperative PainReferred pain_6h1.0 score on a scaleStandard Deviation 1.8
Secondary

Surgical Conditions

Surgical rating score, concerning the quality of the surgical field, scored with the surgical rating scale (SRS) A likert scale from 1 to 5. Higher scores represent better outcomes. 1. = extremely poor conditions 2. = poor conditions 3. = acceptable conditions 4. =good conditions 5. = optimal conditions

Time frame: Day 0: Intraoperative, average of scores up to 240 minutes (assessed each 15 minutes)

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeSurgical Conditions4.8 score on a scaleStandard Deviation 0.3
Group B: Moderate Neuromuscular BlockadeSurgical Conditions4.7 score on a scaleStandard Deviation 0.5
Secondary

Total Score of the Quality of Recovery-40 Questionnaire

The QoR-40 is a validated assessment tool for measuring a patient's self-assessed quality of recovery after surgery. It consists of 40 questions measuring 5 dimensions: patient support, comfort, emotions, physical independence and pain. Each item is rated on a scale of 1 to 5, giving a minimal score of 40 and a maximum score of 200. Higher values represent a better outcome.

Time frame: Day 2: 48 hours after detubation

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeTotal Score of the Quality of Recovery-40 Questionnaire175.6 score on a scaleStandard Deviation 17.8
Group B: Moderate Neuromuscular BlockadeTotal Score of the Quality of Recovery-40 Questionnaire175.3 score on a scaleStandard Deviation 16.5
Secondary

Warm Ischemia Time

Intraoperative parameter measuring the time (in minutes) between dissection of the renal artery and flushing of the kidney after retrieval

Time frame: Day 0: once, up to 240 minutes

ArmMeasureValue (MEAN)Dispersion
Group A: Deep Neuromuscular BlockadeWarm Ischemia Time3.6 minutesStandard Deviation 1.3
Group B: Moderate Neuromuscular BlockadeWarm Ischemia Time3.9 minutesStandard Deviation 1.6

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026