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KTP laser therapy for bleeding from chronic radiation proctopathy
J G Taylor1, J A Disario, D J Bjorkman
1University of Utah Health Sciences Center, Salt Lake City, Utah, USA.
Gastrointestinal Endoscopy
|September 1, 2000
Summary
KTP laser photocoagulation effectively treats bleeding from chronic radiation proctopathy. This therapy significantly reduces bleeding frequency, improves daily life activities, and lowers healthcare resource utilization.
Area of Science:
- Gastroenterology
- Oncology
- Laser Medicine
Background:
- Chronic radiation proctopathy often causes bleeding from neovascular lesions.
- Endoscopic laser photocoagulation is a standard treatment for this condition.
- The KTP laser (532 nm) is utilized for its hemoglobin absorption and superficial tissue penetration (1-2 mm).
Purpose of the Study:
- To evaluate the safety and efficacy of KTP laser photocoagulation for chronic radiation proctopathy.
- To assess the impact of treatment on bleeding frequency, hematocrit levels, daily activities, and healthcare resource use.
Main Methods:
- Twenty-three patients (21 prostate, 2 uterine cancer survivors) underwent KTP laser treatment.
- Median follow-up was 29 months.
- Patients received a median of 2 sessions at 4-10 Watts, with a median energy of 816 Joules per session.
Main Results:
- Significant reduction in bleeding frequency (p = 0.0005) and increase in hematocrit (p < 0.0001).
- Improved activities of daily living (p = 0.01) and reduced healthcare resource use (p < 0.0001).
- Trend towards decreased iron supplement and transfusion needs; 9% developed rectal ulcers.
Conclusions:
- KTP laser photocoagulation is a safe and effective treatment for bleeding in chronic radiation proctopathy.
- The therapy leads to significant clinical improvements and resource savings.
- It enhances patients' quality of life by improving daily activities.