Table 2.
Technology | Example/Manufacturer* | Description | Advantages | Disadvantages |
---|---|---|---|---|
Thulium Fiber laser (TFL) | SOLTIVE (Olympus) Fiberlase (NTO IRE-Polus) |
Novel laser technology with properties which should allow more efficient lithotripsy and reduced photothermal damage to other structures. Uses laser diode rather than flash lamp. | -Less retropulsion -Higher frequency range (up to 2400Hz) -Faster stone ablation rate |
-Lack of randomised trials -No cost data |
Moses Homium laser | Moses technology (Lumenis) Vapor Tunnel (Quanta system) |
Novel modulation of laser pulse allows improved stone fragmentation as a result of better transmission of energy in water | -Increases ablation rate -Reduces retropulsion |
-Limited clinical studies on technology -Higher cost |
Anti retropulsive devices (ARDs) | Stone Cone/Escape/Lithocatch/ Parachute (Boston Scientific) NTrap (Cook Medical) Accordion (Endotherapeutics) XenX (Xenolith Medical) |
Prevent retrograde migration of stone fragments during lithotripsy | -Reduced retropulsion rate -Potential to reduce retreatment rate |
-Added cost of procedure (may be offset by reduced need additional procedures) -Some devices liable to damage from laser -Some devices not wide enough for use dilated ureter(s) |
Ureteral access sheath (UAS) | Flexor (Cook Medical) UroPass (Olympus) Bi-Flex Evo (Rocamed) Navigator (Boston Scientific) |
Allow repeat access to kidney with ureteroscope | -Decrease intrarenal pressure -Repeat and rapid entry to renal pelvis -Improved visibility -Reduced operative time |
-Placement can be difficult -Intra-operative complications eg, tear, perforation -Post-operative complications eg, stricture -Over dilation for insertion |