Contrast sensitivity was measured on 105 healthy patients with check details ages ranged from 19 to 26 years with visual acuity of 20/25 or better. The tests were performed in the same room and contrast sensitivity was measured with the VCTS-6500 system and CSV-1000. For both tests, the spatial frequencies
of 3, 6, 12 and 18 cycles per degree were recorded.
Contrast sensitivity values were generally higher for the Vistech VCTS-6500 test being the difference statistically significant (p < 0.001) for all the spatial frequencies. This difference was more significant for 3 cpd spatial frequency and the two tests showed a better agreement for the 6 cpd spatial frequency. Our results showed that there were significant differences between the VCTS-6500 and the CSV-1000 tests. Developments of some general recommendations or regulations in relation to clinical measurement of contrast sensitivity are necessary. (C) 2010 Elsevier Inc. All rights reserved.”
“Objective: The prognostic
relevance of subtypes within type B thymomas is controversial. The objective of this study was to evaluate the utility of World Health Organization (WHO) classification in patients with type B thymoma.
Methods: This was a retrospective review of 100 patients who underwent thymectomy for WHO type B thymoma. Recurrence patterns and survival were compared among subtypes.
Results: There were 22 type B1 tumors, 43 type B2 tumors, and 35 type B3 tumors. Incomplete resection occurred in 5 patients with type B1 thymoma, 8 with type B2 thymoma, and MK-2206 ic50 8 with type B3 thymoma (P = .87). Of the 79 patients with complete resection, tumor recurrence occurred in 1 (5.9%) patient with type B1 thymoma, 2 (5.7%) with type B2 thymoma, and 2 (7.4%) with type B3 thymoma, and all of these patients had Masaoka stage III disease. Disease-free survival at 5 years was 93%, 85%, and 82% in type
B1, B2, and B3, respectively (B1 vs B2; P = .79; B2 vs B3; P = 0.6). Disease-free survival at 5 years was 4-Aminobutyrate aminotransferase 94%, 100%, 61%, and 50% in Masaoka stages I, II, III, and IV, respectively (I vs II; P = .26; II vs III; P = .028; III vs IV; P = .002).
Conclusions: Tumor recurrence was significantly associated with advanced Masaoka stage regardless of the WHO subtype of type B thymomas. Given the heterogeneity of WHO type B thymomas, Masaoka stage should always be considered when predicting prognosis and planning adjuvant treatment for patients with type B thymomas. (J Thorac Cardiovasc Surg 2010;139:1431-5)”
“A 49-year-old woman developed a catatonic mute state a few weeks after methadone overdose. Clinical, radiological and histological findings were consistent with toxic spongiform leukoencephalopathy, which adds a potentially deadly side-effect to a generally considered safe substitution for heroin. (C) 2010 Elsevier Inc. All rights reserved.”
“Objective: Hypoxemia is a common problem of 1-lung ventilation.