Abstract | BACKGROUND: The optimal duration of preoperative anti-helminths for prevention of recurrences in pulmonary hydatidosis is unclear, although 1-3 weeks of therapy is routinely used. METHODS: Forty-five patients of pulmonary hydatid disease were randomly assigned into four groups to receive either 0, 2, 4 or 8 weeks of preoperative albendazole (ABZ) and praziquantel (PZQ). Viability of the scolices in the fluid harvested at surgery ( methylene blue staining) and ability to produce peritoneal hydatids in mice (intra-peritoneal inoculation) were compared in different groups. RESULTS: The percentage viability of the scolices as a whole was significantly (P < 0.001) lower in the treated cysts (n= 36, mean 43.5 +/- 35.69) compared with the untreated cysts (n= 8, mean 94.75 +/- 7.21). The viability progressively decreased with increasing durations of chemotherapy (P < 0.001). Mean percentage viability of scolices was 88.72 +/- 4.91% in patients treated for 2 weeks (n= 12), 38.09 +/- 9.10% after 4 weeks (n= 11) and 8.1 +/- 9.23% after 8 weeks (n= 14). Intra-peritoneal mice inoculation was positive in 90% of the cysts that received therapy for 2 weeks or less and none of the patients who received therapy for 8 weeks had a positive inoculation. CONCLUSIONS: Preoperative combination therapy with ABZ and PZQ effects a scolicidal response which increases with the increasing duration of the preoperative chemotherapy, and a 4-week course of the combination chemotherapeutic agents seems to be the minimum required duration for ensuring scolicidal activity enough to prevent spillage-induced recurrences following pulmonary hydatidosis.
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Authors | Parvaiz A Koul, Anurag Ambroze Singh, Abdul G Ahanger, Abdul Wahid, Bashir A Sofi |
Journal | ANZ journal of surgery
(ANZ J Surg)
Vol. 80
Issue 5
Pg. 354-7
(May 2010)
ISSN: 1445-2197 [Electronic] Australia |
PMID | 20557511
(Publication Type: Journal Article, Randomized Controlled Trial)
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Chemical References |
- Anthelmintics
- Praziquantel
- Albendazole
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Topics |
- Albendazole
(administration & dosage)
- Animals
- Anthelmintics
(administration & dosage)
- Chemotherapy, Adjuvant
- Drug Administration Schedule
- Drug Therapy, Combination
- Echinococcosis, Pulmonary
(diagnosis, drug therapy, surgery)
- Humans
- Mice
- Praziquantel
(administration & dosage)
- Premedication
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