Related Experiment Video
Updated: Jan 30, 2026

Author Spotlight: Training of Laboratory Animals for Gentle and Stress-Free Handling
Published on: February 16, 2024
Effect And Predictive Value Of Routine Preoperative Laboratory Testing For Endoscopic Retrograde
J Jokelainen1,2, S Ismail1,3, L Kylänpää1,3
1University of Helsinki, Helsinki, Finland.
Routine preoperative lab tests do not predict adverse events in endoscopic retrograde cholangiopancreatography (ERCP). Testing should be individualized based on patient needs, not universal.
Area of Science:
- Gastroenterology
- Clinical Pathology
Background:
- Growing evidence questions the necessity of routine preoperative laboratory tests for surgical and endoscopic procedures.
- The utility of these tests in predicting adverse events during endoscopic retrograde cholangiopancreatography (ERCP) remains unclear.
Purpose of the Study:
- To evaluate the association between routine preoperative laboratory tests and adverse effects in patients undergoing ERCP.
- To determine if preoperative lab results can predict complications such as pancreatitis or sedation-related issues.
Main Methods:
- A prospective observational study was conducted on 956 patients undergoing 1196 ERCP procedures.
- Routine preoperative laboratory results (blood count, creatinine, electrolytes, coagulation, amylase) were analyzed against adverse events and procedural sedation complications.
Main Results:
- No association was found between abnormal preoperative lab tests and post-ERCP pancreatitis.
- Respiratory depression from sedation was not linked to abnormal lab tests; anemia showed a slight protective effect.
- Cardiovascular depression was associated with thrombocytopenia and hyponatremia in male patients.
Conclusions:
- Routine universal preoperative laboratory testing is not effective in predicting adverse effects during ERCP.
- Preoperative laboratory testing strategies should be tailored to individual patient needs rather than applied universally.
More Related Videos
07:06Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
06:44Author Spotlight: Developing Identification Methods for Rhodiola crenulata and Investigating Its Resource Distribution and Pharmacological Effects
Published on: October 27, 2023
Related Concept Videos
Predicting Molecular Geometry
Prediction Intervals
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
End Point Prediction: Gran Plot
For potentiometric titration, the Gran plot is created by plotting...
Sensitivity, Specificity, and Predicted Value
Sensitivity is the...
Endoscopic Studies II: Thoracocentesis
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to: