Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
80 participants
OBSERVATIONAL
2022-12-01
2023-05-31
Brief Summary
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Detailed Description
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Currently, light specific gravity is more of a concept. Because in the available data, only the range of cerebrospinal fluid density of ordinary healthy adults is available, there is little literature and data to describe and analyze what the cerebrospinal fluid density of elderly patients actually is. Therefore, when we administer subarachnoid anesthesia to elderly patients, we cannot determine whether the dispensed local anesthetic drug is a light specific gravity.
In this study, we intend to collect cerebrospinal fluid from elderly patients who underwent hip arthroplasty under combined lumbar and rigid anesthesia or subarachnoid anesthesia, and measure the cerebrospinal fluid density in elderly patients, and observe whether there is a correlation between the above factors and cerebrospinal fluid density through the electronic medical record system to understand the patient's gender, blood glucose, blood biochemical electrolytes and routine blood levels; thus, we can better guide the use of lighter specific gravity drugs in clinical practice.
Conditions
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Keywords
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Study Design
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ECOLOGIC_OR_COMMUNITY
CROSS_SECTIONAL
Study Groups
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Group A
Patients were aged 60-69 years
Cerebrospinal fluid densitometry
After obtaining the patient's cerebrospinal fluid specimen, the actual mass of the cerebrospinal fluid was measured by pipetting 1000 μL of cerebrospinal fluid specimen on an analytical balance using a pipette gun, and all specimens were measured three times and the average of the three times was taken as the final mass of 1000 μL of that specimen. After the mass measurement, the residual cerebrospinal fluid was disposed of as medical waste. The density of each specimen was obtained according to the density to mass conversion formula ρ=m/v.
blood routine examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood routine examination.
Blood electrolyte examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood electrolyte examination.
Group B
Patients were aged 70-79 years
Cerebrospinal fluid densitometry
After obtaining the patient's cerebrospinal fluid specimen, the actual mass of the cerebrospinal fluid was measured by pipetting 1000 μL of cerebrospinal fluid specimen on an analytical balance using a pipette gun, and all specimens were measured three times and the average of the three times was taken as the final mass of 1000 μL of that specimen. After the mass measurement, the residual cerebrospinal fluid was disposed of as medical waste. The density of each specimen was obtained according to the density to mass conversion formula ρ=m/v.
blood routine examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood routine examination.
Blood electrolyte examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood electrolyte examination.
Group C
Patients were aged 80-89 years
Cerebrospinal fluid densitometry
After obtaining the patient's cerebrospinal fluid specimen, the actual mass of the cerebrospinal fluid was measured by pipetting 1000 μL of cerebrospinal fluid specimen on an analytical balance using a pipette gun, and all specimens were measured three times and the average of the three times was taken as the final mass of 1000 μL of that specimen. After the mass measurement, the residual cerebrospinal fluid was disposed of as medical waste. The density of each specimen was obtained according to the density to mass conversion formula ρ=m/v.
blood routine examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood routine examination.
Blood electrolyte examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood electrolyte examination.
Group D
Patient age \> 90 years
Cerebrospinal fluid densitometry
After obtaining the patient's cerebrospinal fluid specimen, the actual mass of the cerebrospinal fluid was measured by pipetting 1000 μL of cerebrospinal fluid specimen on an analytical balance using a pipette gun, and all specimens were measured three times and the average of the three times was taken as the final mass of 1000 μL of that specimen. After the mass measurement, the residual cerebrospinal fluid was disposed of as medical waste. The density of each specimen was obtained according to the density to mass conversion formula ρ=m/v.
blood routine examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood routine examination.
Blood electrolyte examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood electrolyte examination.
Interventions
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Cerebrospinal fluid densitometry
After obtaining the patient's cerebrospinal fluid specimen, the actual mass of the cerebrospinal fluid was measured by pipetting 1000 μL of cerebrospinal fluid specimen on an analytical balance using a pipette gun, and all specimens were measured three times and the average of the three times was taken as the final mass of 1000 μL of that specimen. After the mass measurement, the residual cerebrospinal fluid was disposed of as medical waste. The density of each specimen was obtained according to the density to mass conversion formula ρ=m/v.
blood routine examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood routine examination.
Blood electrolyte examination
After obtaining the patient's blood specimens, they were sent to the laboratory for blood electrolyte examination.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
60 Years
ALL
Yes
Sponsors
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First People's Hospital of Chenzhou
OTHER
Responsible Party
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zhiming zhang
MD, Ph.D
Locations
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Zhiming Zhang
Chenzhou, Hunan, China
Countries
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Central Contacts
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Facility Contacts
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Zhiming Zhang, M.D.
Role: primary
Other Identifiers
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202201
Identifier Type: -
Identifier Source: org_study_id