[Unusual complication in suppurative pulmonary echinococcosis].
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Results of diagnosis and treatment of 205 patients with bilateral pulmonary echinococcosis were analyzed. 141 patients underwent two-sided surgeries: 77--staged operations with interval from 2 weeks to 3 months, 64--one-stage operations on both lungs. One-stage operations through thoracotomies were performed in 49 patients, through medial sternotomy--in 15. Mean hospital stay was 20 bed-days. Long-term results from 6 weeks to 15 years were studied in 60 patients. Stable curative effect was achieved in all the patients.
A comparison was made of the diagnostic value of five immunological tests-complement fixation (CF), latex agglutination (LA), bentonite flocculation (BF), passive haemagglutination (PHA), and intradermal (ID)-in patients operated on for pulmonary echinococcosis. The sensitivity of all five tests was significantly lower in the patients with pulmonary echinococcosis than in a comparable group with liver echinococcosis. Some 252 patients with miscellaneous nonhydatid diseases and parasitic infections were also tested; nonspecific reactions were highest in the ID and CF tests and lowest in the LA and BF tests. None of the serological tests was significantly more sensitive than the others, although the CF test was somewhat less sensitive and therefore probably has the least diagnostic value in pulmonary echinococcosis. The ID test showed a significantly higher sensitivity than any of the serological tests. The difficulties encountered in the immunodiagnosis of pulmonary hydatid disease are discussed and it is recommended that at least two serological methods (PHA and either LA or BF) and the ID test should be used in each case.
Infection with Echinococcus granulosus is endemic in Middle Eastern countries. Some patients are noted to undergo spontaneous resolution, but many require surgical removal with its associated risks. Although, there are studies showing favourable responses to medical treatment, there is no controlled study on the effect of albendazole. In this study, 20 patients with 179 E. granulosus cysts affecting the lungs were entered into a triple blind parallel randomized clinical trial comparing the effects of albendazole versus placebo. Fifteen patients (150 cysts) completed 6 months of treatment; four patients (26 cysts) were in the placebo group and 11 patients (124 cysts) in the treatment group receiving 800 mg albendazole daily in three cycles of 6 weeks with 2 weeks between cycles. Ten of 11 patients (91%) in the treatment group showed either cure (five patients) or improvement (five patients); in the placebo group, only one of four (25%) showed spontaneous improvement but no cure. In the treatment group, 88 of 124 cysts (71%) showed improvement compared to four of 26 (15.4%) in the placebo group (p=0.000). Complication from therapy was insignificant; one case had recurrent disease, which responded to further therapy. It is suggested that patients suffering from uncomplicated hydatid disease should be given a trial of albendazole before surgery is considered.
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