The falcotentorial and velum interpositum meningiomas can be safely managed with the use of occipital transtentorial approach. Homonymous hemianopsia is the most common although always transient complication of surgery.
The extent of tumor removal had no effect on the risk of recurrence, and thus it may be acceptable to leave tumor capsule fragments adhering closely to nerves, vessels, or brainstem. During long-term follow-up, resolution or improvement of present preoperatively and new postoperative neurological deficits may be expected in most patients.
The recA gene has been used as a target in screening for the presence of acinetobacters on the genospecies level and differentiation of relevant acinetobacter species from one another by PCR. Primers deduced from known recA gene sequences of Acinetobacter calcoaceticus and Neisseria gonorrhoeae allowed the amplification of DNAs from all Acinetobacter genospecies. The size of the amplified DNA fragment from all genospecies tested was approximately 435-500 bp relative to DNA size markers. The amplified products were examined further by restriction fragment length polymorphism (RFLP) analysis. Restriction analysis with only two enzymes, MboI and HinfI, enabled us to identify all known genospecies. Since this method uses conserved recA gene sequences for primers, it is expected to be applicable for the identification of most bacterial species.
In our series, the factors related to size and side of the tumor confirmed an independent impact on CNVII-IDR and CNVIILTF. The significance of patient positioning may reflect the impact of learning curve as only the first 91 patients were operated on using the lateral "park-bench" position. An independent impact on CNVII-LTF was exerted by the perioperative use of nimodipine.
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