Related Experiment Video
Updated: Feb 11, 2026
Laparoscopic Left Hemihepatectomy Combined with Caudate Lobe Resection
Published on: April 11, 2025
Differences in left and right laparoscopic adrenalectomy
Jocelyn M Rieder1, Alan A Nisbet, Melanie C Wuerstle
1Department of Urology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, USA.
Background And Objectives:
The classic belief is that right-sided laparoscopic adrenalectomy is technically more difficult to perform than left-sided. The purpose of this study was to determine whether objective outcomes are different for the right- versus left- sided operation.
Methods:
A retrospective review of 163 laparoscopic adrenalectomies was performed to compare outcomes. Variables extracted included age, demographics, body mass index (BMI), laterality, indication, operative time, estimated blood loss (EBL), gland size, complications, open conversion rates, and length of stay.
Results:
Of the adrenalectomies performed, 109 were on the left and 54 on the right. Age, BMI, and indication were similar for each group. The mean EBL on the left side was 113 mL (range, 2 to 3000) and 84 mL (range, 10 to 700) for the right (P=0.85). The mean operative time on the left side was 187 minutes (range, 62 to 475) and on the right was 156 minutes (range, 50 to 365) (P=0.02). There was no difference in complication or conversion rate.
Conclusions:
There was no difference in complication or conversion rates between each side, and we observed a trend toward lower blood loss for the right side. Although we report generally similar outcomes, the mean operative time for a right-sided laparoscopic adrenalectomy was significantly less (31 minutes) than the left side.
Related Concept Videos
01:24Cardiac Catheterization III: Left Heart Catheterization
01:16Electric Potential and Potential Difference
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
01:05Difference from Background: Limit of Detection
The LOD indicates the presence or absence...
01:14Identifying Statistically Significant Differences: The F-Test
01:22Sum and Difference OpAmps
A summing amplifier, or an adder, utilizes an op-amp to merge multiple input signals into a single output signal. When audio signals are introduced into its input channels, the input resistors initiate currents that traverse feedback resistors, resulting in an output voltage. Applying Kirchhoff's current...
01:24Difference Equation Solution using z-Transform
The z-transform facilitates handling delayed signals by shifting the signal in the z-domain, which corresponds to delaying the signal in the time domain, and advancing signals by similarly shifting in the...