ABSTRACT
Objective To investigate the effects of surgical method on the falx paraneoplastic parasagittal meningiomas.Methods 30 cases of surgical treatment in sagittal sinus and falx meningioma patients with imaging data,surgical approach,microsurgical resection of the tumor method and efficacy were analyzed.Results 30 patients resected by Simpson standard,Ⅰ grade resection 23 cases,Ⅱ grade resection in 7 cases,no operative mortality.1-5 years of follow-up,2 patients relapsed,all secondary surgical cure.Conclusion To be familiar with microscopic neuroanatomical relationship,using microsurgical resection of the superior sagittal sinus,falx meningioma,tumor removal rate can be increased to reduce the important functional areas of damage,reduce complications and improve quality of life of patients.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the noise hazards in open quarries and to provide a basis for further control of noise hazards.</p><p><b>METHODS</b>An investigation was performed during 2010 to 2011 among all open quarries in Deqing County of Zhejiang Province, China. The investigation included basic information of the quarries, the occupational health situation and noise intensity at the workplace, and the hearing loss of workers exposed to noise in quarry enterprises. The hearing test results were evaluated based on the Diagnostic criteria of occupational noise-induced hearing loss (GBZ 49-2007).</p><p><b>RESULTS</b>A total of 25 enterprises with open quarries were investigated, of which only 30.4% (17/56) workplaces met the national standard. The median noise level was 92.5 dB (A). Fifty-four (10.6%) out of 508 workers in the 25 enterprises were diagnosed with binaural hearing loss in the initial physical examination, with 18.3% (93/508) under surveillance. The rate of normal hearing among crushing workers, mechanists, drilling workers, and blasting workers ranged between 27.6% and 41.4%, which was significantly lower than that among workers exposed to slight noise hazards (80.0%) or other workers (63.7%) (P < 0.05). With increasing working years, the binaural hearing loss of crushing workers became serious.</p><p><b>CONCLUSION</b>Serious occupational noise hazards existed in most jobs in open quarries, with crushing workers, mechanists, drilling workers, and blasting workers most seriously jeopardized. Among crushing workers, those working in the first-line or unprotected second?line positions suffered more than the others. Further measures should be taken by the supervision department and the enterprises to control the noise hazards in open quarries.</p>
Subject(s)
Humans , Hearing , Hearing Loss, Noise-Induced , Mining , Noise, Occupational , Occupational ExposureABSTRACT
Objective To investigate the clinical curative effect of Prepenem for pathogen from cranial neu-rosurgieal patients with lower respiratory tract infection after traeheotomy and to provide basis for treatment of such pa-tients. Methods Thirty-two cranial neurosurgical patients with lower respiratory tract infection after tracheotomy were enrolled in the study with original empiric therapy with Prepenem. And the pathogenic bacteria in sputum from patients with lower respiratory tract infection after traeheotomy were stricdy identified and analyzed by automatic mi-croorganism analyzers. The clinical efficacy of Prepenem was identified after treatment. Results The straim of bacte-rial species(48) and funni(5) from 32 specimens were isolated. 15 strains were infected by one kind of bacteria and 38 strains were infected by two kinds of bacteria. Among the pathogen, gram-negative bacilli were about 64. 1% and Klebsiela pneumoniae (18. 8%)was the most predominant, gram-positive coccobacteria were about 26. 4% and Staph-ylococcus aureus(13.2%)was the most predominant,funni were about 9.4% and C. albicans (5.7%)was the most predominant. The drug sensitivity test showed that the ratio of drug resistance of bacteria isolated from sputum was high,but gram-negative bacilli were highly sensitive to imipenem. Staphylococcus aurens was sensitive to Nitrofuran-toin and Rifampicin. Satisfied clinical curative effect was shown by the de-escalation therapy for all patients. Conclu-sions Gram-negative bacili in cranial neurosurgical patients with lower respiratory tract infection after tracheotomy are the main pathogenic bacteria from lower respiratory tract infection, and Staphylococcus aureus are the main gram-positive cocci. So the drug sensitivity test of sputum should be done more often and antibiotics must be selected ac-cording to the drug sensitivity test. In general, this kind of infection can be controlled by prepenem effectively.