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  4. Single-dose intravesical amikacin instillation for pyocystis in a patient with autonomic dysreflexia: A case report

Single-dose intravesical amikacin instillation for pyocystis in a patient with autonomic dysreflexia: A case report

The Journal of Spinal Cord Medicine, 2022 · DOI: 10.1080/10790268.2021.1922832 · Published: November 1, 2022

Spinal Cord InjuryUrologyImmunology

Simple Explanation

Pyocystis, a bladder infection common in anuric patients, can trigger autonomic dysreflexia (AD) in spinal cord injury (SCI) patients. This case report explores treating pyocystis with a single dose of amikacin directly into the bladder. A 59-year-old male with paraplegia and anuria experienced recurrent AD suspected to be caused by pyocystis. Traditional IV antibiotics were unlikely to reach the infection site, leading to the decision to use intravesical amikacin. After a single dose of amikacin instilled directly into the bladder, the patient's bladder culture showed no growth, and he remained stable without AD symptoms for one month, suggesting the effectiveness of this treatment approach.

Study Duration
1 Month
Participants
59-year-old male with T1 ASIA Impairment Scale grade A complete paraplegia
Evidence Level
Level 4: Case Report

Key Findings

  • 1
    A single-dose intravesical instillation of amikacin 25 mg/100 mL successfully treated pyocystis in an anuric SCI patient with recurrent autonomic dysreflexia.
  • 2
    Post-treatment bladder culture showed no colonies of Escherichia coli, indicating eradication of the infection.
  • 3
    The patient remained stable with no episodes of AD and no signs or symptoms of infection one month following the amikacin instillation.

Research Summary

This case report describes the successful treatment of pyocystis with a single amikacin bladder instillation in a 59-year-old male with paraplegia and anuria. The patient, who had recurrent episodes of autonomic dysreflexia suspected to be caused by pyocystis, was treated with a single-dose intravesical instillation of amikacin 25 mg/100 mL. Following the treatment, the patient's bladder culture showed no growth, and he remained stable without AD symptoms for one month, suggesting that intravesical amikacin can be an effective treatment option.

Practical Implications

Treatment of Pyocystis in Anuric SCI Patients

Intravesical amikacin instillation can be a viable treatment option for pyocystis in anuric SCI patients when systemic antibiotics are unlikely to penetrate the bladder epithelium.

Pyocystis as a Cause of AD

Clinicians should consider pyocystis as a potential cause of autonomic dysreflexia in SCI patients with anuria, especially when there is no obvious source of AD.

Alternative to Systemic Antibiotics

Intravesical antibiotic instillation offers an alternative to systemic antibiotics, reducing the risk of systemic toxicities while effectively targeting the infection site in the bladder.

Study Limitations

  • 1
    Single case report limits generalizability
  • 2
    Lack of amikacin serum concentration measurements
  • 3
    Limited data on long-term efficacy and optimal treatment strategies

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