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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04815070
Other study ID # B-2103/673-307
Secondary ID
Status Completed
Phase
First received
Last updated
Start date March 29, 2021
Est. completion date March 7, 2022

Study information

Verified date May 2022
Source Seoul National University Bundang Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Aspiration of gastric contents during perioperative period is a grave complication with significant morbidity and mortality. Diabetic patients have a higher incidence of autonomic dysfunction, causing gastropathy. They are known to have gastroparesis and the consequent delayed gastric emptying which predisposes them to an increased risk of aspiration than the general population. Furthermore, other common factors can influence the gastric emptying rate, as for example, old age, pain, and the use of opioid analgesics. In the previous study, evidence of increased pain was reported in patients undergoing staged bilateral total knee arthroplasty, in whom the second operated knee had greater sensitivity (tertiary hyperalgesia) due to the surgical injury to the first operated knee. In the present study, we will evaluate the effect of old age, diabetes, surgical stress, pain, and the use of analgesics on the residual gastric volume in elderly patients undergoing staged-bilateral total knee arthroplasty.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date March 7, 2022
Est. primary completion date March 7, 2022
Accepts healthy volunteers No
Gender All
Age group 65 Years to 85 Years
Eligibility Inclusion Criteria: - Patients scheduled for staged bilateral total knee arthroplasty aged 65 to 85 years - American Society of Anestheiologist physical status classification 1, 2, and 3 - Body mass index < 35 kg/cm2 Exclusion Criteria: - Previous surgery of the upper gastrointestinal tract - Achalasia

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Ultrasonic measurement of antral area
Ultrasound exam is done before the induction of spinal anesthesia. Three consecutive measurements of the anteroposterior (AP) and cranio-caudal (CC) diameters are performed. The cross-sectional area (CSA) of antrum is shown by the following formula: CSA = AP x CC x ?/4. Antral area will correspond to the average of the three measures.

Locations

Country Name City State
Korea, Republic of Seoul National University Bundang Hospital Seongnam Gyeonggi

Sponsors (1)

Lead Sponsor Collaborator
Seoul National University Bundang Hospital

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type Measure Description Time frame Safety issue
Primary Volume of Gastric Contents A "full stomach" is defined as on containing a) solid or thick fluid content or b) 1.5 mL/kg of clear fluid. Less than one hour prior to surgery
Secondary Numerical rating pain scale Postoperative pain score (0 = no pain, 10 = very severe pain) One hour prior to surgery, Postoperative 24 and 48 hour
Secondary Rescue analgesics Amounts of the analgesics administered to manage the postoperative pain Postoperative 24 and 48 hour
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