Sociedad Americana de Hirudoterapia

Medicinal Leech Therapy in Urology: A PRISMA-Compliant Systematic Review

Battin AO, Hobeika N, Zdilla MJ (2023) · African Journal of Urology · n=12

RCT evidence detailTrial reference
Sample size of this trial compared with other Microsurgical Replantation (Digit / Ear / Scalp) trialsArbel EJ 202446Battin AO 202312Hong Ha N 20254van Alphen NA 20142Akhoondinasab MR 20231Banihani OI 20141Mousa A 20221Mendenhall SD 20161Momeni A 20141Senchenkov A 20131
This trial (highlighted) by sample size alongside other indexed Microsurgical Replantation (Digit / Ear / Scalp) trials. Larger trials generally carry more statistical weight.

Study Profile

Design
PRISMA-compliant systematic review of 12 unique medicinal leech therapy cases in urological contexts (MEDLINE/PubMed)
Sample size (n)
12
Intervention
Medicinal leech therapy across 12 urological cases: 4 post-penile replantation, 2 post-scrotal hematoma, 2 post-neonatal bladder exstrophy repair, 1 refractory priapism, 3 penoscrotal edema in hormone refractory prostate carcinoma
Comparator
Within-cohort comparison across diverse urological indications
Primary endpoint
Clinical improvement and complications across urological leech therapy applications
Primary result
All 12 cases (100%) reported clinical improvement; venous congestion/hematoma cases noted decreased displaced blood volume; priapism case had decreased pain; penoscrotal edema cases had significant swelling reduction; no complications in 9 adult patients; 3 neonatal patients required blood products
Follow-up duration
Variable across included cases

Key Findings

  • First PRISMA-compliant urology-specific leech review
  • 100% reported clinical improvement across 12 cases
  • Diverse indications: replant, hematoma, exstrophy, priapism, edema
  • No complications in 9 adult patients
  • 3 neonatal cases required blood products (volume-related)

Limitations

  • Small case pool (n=12 unique cases)
  • Publication bias toward successful outcomes
  • Heterogeneous indications limit cross-comparison
  • No control groups available
  • PRISMA methodology applied to case-level evidence

Clinical Implications

Battin 2023 establishes leech therapy as a viable urologic adjunct across diverse indications with favorable safety profile in adults. For US clinicians under K040187, this PRISMA review extends device application to refractory priapism, penoscrotal edema, and post-bladder exstrophy congestion contexts beyond the traditional flap-salvage indication. The neonatal blood product requirement highlights age-specific considerations.

Related Trials

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