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Related Concept Videos

Disorders of the Urinary System01:20

Disorders of the Urinary System

298
The urinary system is responsible for eliminating waste and excess fluids from the body. However, disorders of the urinary system can arise due to various reasons like infections, stress, age, congenital abnormalities, and lifestyle.
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
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Ureters01:22

Ureters

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The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
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Related Experiment Video

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Understanding ureteroscopy complications according to modified Clavien classification system.

Usama Bin Shaheen1, Naveed Ahmed Mahar1, Nazish Mughal1

  • 1Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan.

JPMA. the Journal of the Pakistan Medical Association
|April 9, 2024
PubMed
Summary

Semi-rigid ureterorenoscopy for ureteric stones is a safe procedure with minimal complications. The Modified Clavien classification system effectively graded these ureteric stone treatment outcomes.

Keywords:
Ureteroscopy, Modified Clavien classification system, Ureteric calculi, ESWL. clerkship.

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Area of Science:

  • Urology
  • Surgical Complications
  • Medical Device Technology

Background:

  • Ureteric stones affect a significant patient population, necessitating effective and safe treatment options.
  • Semi-rigid ureterorenoscopy has emerged as a key minimally invasive technique for managing ureteric calculi.
  • Standardized complication assessment is crucial for evaluating surgical outcomes.

Purpose of the Study:

  • To evaluate the spectrum and severity of complications associated with semi-rigid ureterorenoscopy for ureteric stones.
  • To assess the utility of the Modified Clavien classification system in grading these complications.
  • To determine the safety and efficacy of semi-rigid ureterorenoscopy in ureteric stone management.

Main Methods:

  • A prospective, descriptive study involving 414 patients aged 18-70 with ureteric stones.
  • All patients underwent semi-rigid ureterorenoscopy under general anesthesia.
  • Complications were meticulously recorded and graded using the Modified Clavien Complication System over a 2-month follow-up period.

Main Results:

  • The study included 414 patients (73.4% male), with a mean age of 40.22 years.
  • Distal ureteric stones were most common (42%), followed by middle (32.3%) and proximal (25.6%).
  • The majority of patients (62.8%) experienced no complications; 21.7% had Grade I, and 8.2% had Grade II complications. Higher grades were less frequent.

Conclusions:

  • Semi-rigid ureterorenoscopy demonstrates a favorable safety profile for ureteric stone treatment.
  • The procedure offers optimal stone clearance with manageable complication rates.
  • The Modified Clavien classification system provides a practical and effective framework for assessing ureterorenoscopy-related complications.