Management of Malignant Wound Myiasis with Ivermectin, Albendazole, and Clindamycin (Triple Therapy) in Advanced Head-and-Neck Cancer Patients: A Prospective Observational Study.

INTRODUCTION

Myiasis, tissue infestation by housefly larvae, is commonly found in malignant fungating wounds of cancer patients from climatic condition and lower socio-economic strata.

AIM OF STUDY

It was aimed to study the effectiveness of systemic Ivermectin, Albendazole& Clindamycin (Triple Therapy) in reducing signs & symptoms associated with maggots in malignant head and neck wounds.

METHOD

25 adult, advanced head and neck cancer patients presenting with maggots either from wound, oral cavity or nostril, with ECOG score 3 or less were enrolled in this study. Symptoms were assessed using Edmonton Symptom Assessment Scale (ESAS) and wound by Wound Assessment Tool - Hospice, at baseline and then Days 1, 3, 5, and 7. All patients received 3 days course of oral Ivermectin 12 mg per day, Albendazole 400 mg twice per day and Clindamycin 300 mg three times per day for 5 days along with Terpentine oil dressing. All patients received oral Morphine as per their pain score.

RESULTS

Mean age (yrs) and weight (Kg) were 42.15 ± 8.23 and 52.31 ± 5.18 respectively. 84% patients were male. Mean oral morphine dose was 100.38 mg. There was significant decrease in number of maggots from day 0 (77.28 ± 13.465) to day 1 (20.60 ± 7.263; 73.34% reduction) to day 3 (1.52 ± 2.104; 92.62% reduction). We found statistically significant improvement ( = <0.05) in scores of wound and all other related symptoms on days 1, 3, 5 & 7, except bleeding, edema, nausea, anxiety, appetite loss and feeling of wellbeing, which remained same on Day 1, but improved afterward. Side effects were self-limiting.

CONCLUSION

Systemic treatment with Ivermectin, Albendazole and Clindamycin (Triple Therapy) enhances the removal of maggots, early recovery and relief from distress and associated symptoms.