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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...

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Related Experiment Video

Updated: May 14, 2026

Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser
05:28

Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser

Published on: May 5, 2020

[Treating cervico-urethral obstructions with laser diode: initial clinical experience].

Paolo Beltrami1, Andrea Guttilla, Giuseppe Fumo

  • 1Department of Oncological and Surgical Sciences, Urology Clinic, University of Padua, Padua - Italy.

Urologia
|February 2, 2013
PubMed
Summary

This study introduces a new dual-wavelength laser for treating benign prostatic hyperplasia (BPH), offering a minimally invasive option for older men. The laser shows comparable or superior efficacy to existing treatments, with manageable side effects.

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Last Updated: May 14, 2026

Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser
05:28

Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser

Published on: May 5, 2020

Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser
07:17

Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser

Published on: May 9, 2018

Treatment of Ejaculatory Duct Obstruction by Seminal Vesiculoscopy Assisted Flow Modification
03:51

Treatment of Ejaculatory Duct Obstruction by Seminal Vesiculoscopy Assisted Flow Modification

Published on: December 8, 2023

Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Laser Medicine

Background:

  • Benign Prostatic Hyperplasia (BPH) is a common condition in aging men, necessitating effective, minimally invasive treatments due to patient comorbidities.
  • Traditional surgery for BPH carries risks for patients with co-existing health issues.
  • Laser treatments for cervico-urethral obstructions (CUO) caused by BPH have been used since the 1990s.

Purpose of the Study:

  • To evaluate the efficacy and safety of a novel dual-wavelength laser diode specifically designed for BPH treatment.
  • To compare the new laser technology with existing surgical options for BPH.

Main Methods:

  • A dual-band laser source (980 nm + 1470 nm) with a conical tip fiber was tested on 14 patients (56-70 years old) with BPH.
  • The laser was used with a standard resectoscope, delivering 100-110 W power.
  • Outcomes measured included operative time, intra-operative complications, and post-operative side effects like hematuria, pain, and catheter removal time.

Main Results:

  • The dual-band laser, used with a conical fiber, allowed for vaporization times comparable to standard transurethral resection of the prostate (TURP) (30-40 minutes).
  • The use of a standard resectoscope facilitated ease of use and immediate familiarity for surgeons.
  • No significant intra-surgery complications were reported, and side effects were manageable.

Conclusions:

  • The dual-band laser with conical fibers presents a promising solution for BPH treatment, utilizing low power density plasma for effective tissue ablation.
  • This new laser technology demonstrates efficacy comparable or potentially superior to current laser options (HoLEP, PVP) and traditional TURP.
  • The technique offers a safe and effective minimally invasive approach for managing BPH.