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Effect of Preload on Bladder Retention Volume During Spinal Anesthesia

The recruitment status of this study is unknown because the information has not been verified recently.
Verified October 2007 by Rijnstate Hospital.
Recruitment status was  Recruiting
Information provided by:
Rijnstate Hospital Identifier:
First received: October 26, 2007
Last updated: NA
Last verified: October 2007
History: No changes posted

The purpose of this study is to assess the influence of different fluid infusions on the quantity of bladder retention after spinal anesthesia. This study should determine if this increase in bladder retention is significant and relevant.

Condition Intervention
Bladder Retention Volume
Other: placebo
Drug: Ringers Lactate
Drug: HaemoHES 6%

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Caregiver, Investigator, Outcomes Assessor)
Official Title: The Effect of Intravascular Preload on Bladder Retention Volume During Spinal Anesthesia Induced Detrusor Blockade

Resource links provided by NLM:

Further study details as provided by Rijnstate Hospital:

Estimated Enrollment: 150
Study Start Date: October 2007
Arms Assigned Interventions
Placebo Comparator: 1
No preload
Other: placebo
Active Comparator: 2
Preload with cristalloid infusion
Drug: Ringers Lactate
Active Comparator: 3
Preload with collid infusion
Drug: HaemoHES 6%

Detailed Description:

Background of the study:

Spinal anesthesia , through interruption of spinal nerve conduction, causes intense blockade of sensation, motor function as well as (para)sympathetic function. Loss of sympathetic tone causes vasodilation which may lead to arterial hypotension and bradycardia. To avoid these effects, in anesthetic practice, usually intravenouspreload is administered as cristalloids or colloids. The form and dosage of these plasma expanders will influence diuresis during spinal anesthesia-induced detrusor blockade. Excess diuresis may cause bladder distension and neccecitates bladder catheterization

Objective of the study:

To compare the quantitative effects of Ringer Lactate and HES 6% on diuresis during spinal anesthesia-induced detrusor blockade as well as prevention of hypotension and vasopressor use.

Study design:

Before spinal anesthesia is performed, patients are randomized into one of the 3 study groups (no preload, preload with Ringers' Lactate 14 ml/kg, preload with HES 6% 7 ml/kg). Spinal anesthesia is administerd with lidocaine 2% 70mg. Hypotension is treated with vasopressors, atropine or additional intravenous fluid. Bladder scans will be performed on the recovery unit and day-case unit. Total urinary volume is measured until sensory function at dermatome S2/3 is restored and spontanous voiding is possible.

Study population:

ASA 1-2 patients who present for spinal anesthesia for minor surgery on the lower extremitiy. Age 18-60 years.

Intervention (if applicable):

Prespinal administration of intravenous Ringers' Lactate 14 ml/kg or HES 6% 7 ml/kg.

Primary study parameters/outcome of the study:

Primary outcome is total urinary volume during spinal induced detrusor blockade, and number of subjects that have a bladdder volume over 500ml.

Secundary study parameters/outcome of the study (if applicable):

Secondary outcome parameters:

Periods of hypertension, and total dose of vasopressor en extra fluid administration.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness (if applicable):

Except for extra bladderscan and block height measurements, all actions are part of routine anesthesiologic care.

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Ages Eligible for Study:   20 Years to 60 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • ASA1-2
  • undergoing minor procedure under spinal anesthesia

Exclusion Criteria:

  • ASA3-4
  • History or signs of heart failure / coronary artery disease.
  • Bladder / urinary disease
  • Neurologic disease that may affect bladder function
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00550186

Contact: Marco Peters, MD 0031464124
Contact: Ed Kamphuis, PhD, MD

Ziekenhuis Zevenaar Recruiting
Zevenaar, Gelderland, Netherlands
Sponsors and Collaborators
Rijnstate Hospital
Principal Investigator: Marco Peters, MD Nijmegen University Anesthesiology Department (resident)
Principal Investigator: Ed Kamphuis, Md, PhD Rijnstate Hospital
  More Information

No publications provided Identifier: NCT00550186     History of Changes
Other Study ID Numbers: LTC-420-071206
Study First Received: October 26, 2007
Last Updated: October 26, 2007
Health Authority: Netherlands: Dutch Health Care Inspectorate

Keywords provided by Rijnstate Hospital:
spinal anesthesia
bladder retention

Additional relevant MeSH terms:
Urinary Retention
Cardiovascular Diseases
Urination Disorders
Urologic Diseases
Vascular Diseases
Central Nervous System Agents
Central Nervous System Depressants
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses processed this record on November 24, 2014