Related Experiment Video
Updated: Feb 9, 2026

06:04
Surgical Treatment for Benign Prostatic Hyperplasia: Holmium Laser Enucleation of the Prostate HoLEP.
Published on: March 6, 2018
17.6K
The Moses holmium system - time is money
1Cleveland Clinic Foundation, Cleveland, Ohio, USA.
The Canadian Journal of Urology
|June 15, 2018
Summary
The Moses holmium laser system for kidney stones may reduce procedure time but does not offer cost savings. Its higher initial cost outweighs potential time efficiencies in laser lithotripsy.
Area of Science:
- Urology
- Medical Technology
Background:
- Holmium laser lithotripsy is a common treatment for kidney stones.
- The Moses technology aims to improve ureteral retropulsion and reduce procedural time.
Purpose of the Study:
- To evaluate the cost-effectiveness of the Moses holmium laser technology compared to standard systems.
- To determine if reduced lasing time translates to patient cost savings.
Main Methods:
- Retrospective analysis of 40 patients undergoing ureteroscopy with laser lithotripsy.
- Calculation of total lasing time from total laser energy.
- Cost analysis comparing Moses technology to standard Holmium TracTip system.
Main Results:
- A positive association was found between stone size and lasing time (p=0.01).
- The Moses system increased costs by $292.36 for all stone sizes and $253.16 for stones >10 mm.
- No significant correlation between stone composition or Hounsfield units and lasing time.
Conclusions:
- The Moses holmium laser system's reduced lasing time does not offset its higher cost.
- Current cost-effectiveness does not support the Moses technology for routine kidney stone treatment.
Related Concept Videos
Mean free path and Mean free time
5.2K
Consider the gas molecules in a cylinder. They move in a random motion as they collide with each other and change speed and direction. The average of all the path lengths between collisions is known as the "mean free path."
5.2K
Mixing Time
481
The concept of mixing time is significant in producing a uniform concrete mix with the required strength. The mixing period starts once all components are in the mixer. Initially, the mixer is charged with 10% of the water, followed by the consistent addition of solids and then 80% of the water. The remaining water is added later, within the first quarter of the mixing period. The minimum mixing time varies according to the mixer's capacity; for example, mixers with up to 1 cubic yard...
481
Generation Time
1.5K
Bacterial generation time, the period required for a bacterial population to double during its exponential growth phase, serves as a critical measure of microbial growth dynamics under optimal conditions. This parameter varies significantly across bacterial species and can be influenced by factors such as temperature, pH, and the availability of nutrients. For example, Escherichia coli can achieve a generation time of approximately 20 minutes, while Mycobacterium tuberculosis exhibits a much...
1.5K
Time Course of Drug Effect
2.8K
The progression of a drug's impact can be analyzed by examining both the concentration-time course and the effect-time course. The concentration-time course is determined by the drug's half-life and is influenced by factors such as its pharmacokinetics, including absorption, distribution, metabolism, and elimination. The effect of the drug is often related to its concentration in the plasma and is calculated using the maximum drug effect and the plasma concentration that generates 50...
2.8K
Setting Time of Cement
709
The setting time of cement refers to the process of cement paste transitioning from a plastic state to a solid state. This process is crucial in construction as it dictates the timeframe for concrete placement, compaction, and finishing. The onset of this solidification is termed the initial set, indicating when the paste becomes unworkable. The final set is when the paste has solidified completely, and further handling or manipulation can no longer affect its shape. The cement strength is...
709
Timing and Consequences on Behavior
404
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
404

