The human aural myiasis caused by Lucilia sericata.

Myiasis is a rare, worldwide, human disease with seasonal variation, caused by developing larvae of a variety of fly species. It can be dangerous when infestations penetrate into the brain. In the available literature, we have found only a few papers concerning ear myiasis caused by Lucilia sericata. Here, we report 2 cases of aural myiasis. Early intervention (surgical removal, occlusion) in these cases should prevent complications. Larvae, for further examination, should be killed by immersion in very hot water, then preserved in an ethanol.

[Oncological failure after partial laryngectomy for laryngeal carcinoma]. / Niepowodzenia onkologiczne po operacjach czesciowych raka krtani.

The aim of the study was an evaluation of oncological failures after partial laryngectomies for treatment of laryngeal carcinoma. A retrospective analysis was done on 325 partial laryngectomies performed during 18 years (1980-1997) at Otolaryngology Department Medical University of Lódz. Seventy four failures (22.8%) were observed, among them local recurrences--in 43 patients (13.2%), nodal recurrences--in 9 patients (2.8%), distant metastases--in 6 patients (1.8%), second primary malignant neoplasms--in 11 patients (3.4%) and spread of neoplastic disease--in 8 patients (2.5%). Local recurrence was statistically the most often type of failure--58.1% in comparison with frequency of the others (p<0.001). The failures, according to type of partial laryngectomy, occurred rarely after cordectomy--17.5%, the most frequently were noted after supraglottic horizontal laryngectomy--42.3% (p<0.01) and fronto-lateral/fronto-anterior laryngectomy--30.9% (p<0.05). Majority of failures were diagnosed within first 2 years after primary treatment--55.4% of all failures in comparison with third (12.2%), fourth and fifth years (5.4%), but they were also often observed over 5 years (27%) (p<0.05). A statistical difference in percentage of failures in the periods until 5 years and over 5 years was noted only for cordectomy (23.8% and 4.9% respectively, p<0.001) and supraglottic laryngectomy (56.3% and 12.5% respectively, p<0.05). Systematic control of patients after partial laryngectomies is necessary all over their life.

[Outcome of the treatment for laryngeal carcinoma by partial laryngectomies]. / Wyniki leczenia chorych na raka krtani za pomoca operacji czesciowych.

The aim of the study was to retrospectively evaluate the results of treatment for early laryngeal carcinoma in a group of 325 patients who underwent from 1980 to 1997 partial laryngectomies. The most often type of operation was cordectomy--51.1%, then frontolateral/frontoanterior laryngectomy--20.9%, vertical laryngectomy--15.1%, supraglottic horizontal laryngectomy--8%, hemilaryngectomy--4.9%. Estimate of survival time, from surgery to first oncologic failure, was obtained with the life-table method. As a failure we considered local and regional recurrence, distant metastasis, second primary neoplasm and spread of disease. The probability of disease-free survival for all partial laryngectomies reached 81.5%, 79.5% and 60.3% at 3, 5 and over 5 years, respectively. The rates of five-year and over 5 year disease-free survival for each type of operation were: for cordectomy--82.3% and 72.3%, for frontolateral/frontoanterior laryngectomy--74.0% and 45.2%, for vertical laryngectomy--87.6% and 60.6%, for hemilaryngectomy--86.2% and 59.7%, for supraglottic horizontal laryngectomy--53.8% and 29.9%, respectively. The comparison between survival rates, by the log-rank test, revealed statistical difference between supraglottic horizontal laryngectomy and following operations: cordectomy (p < 0.001), vertical laryngectomy (p < 0.01), hemilaryngectomy (p < 0.05). The differences between other types of laryngectomy were not significant statistically. The best results in treatment of laryngeal carcinoma by partial laryngectomies were achieved by operations in vertical plane (cordectomy, vertical laryngectomy and hemilaryngectomy), the less positive--by operations in horizontal plane (supraglottic horizontal laryngectomy).