Study DesignThe adverse effects of lumbar myelography in 400 patients were analyzed.ObjectivesTo determine whether advaerse effects of lumbar myelography occur less frequently when using the fine needle technique.Summary of Background DataLumbar, myelography can be performed safely on an outpatient basis. The side effects may be reduced by using the fine needle techniques.MethodsFour hundred patients were studied;200 with a 25 gauge needles and 200 with a 22 gauge needle. Ragardless of the needle, patients with normal myelograma reported more advorse effects.ResultsTranslent worsening of back or leg symptoms, headache, and nausea and vomiting, the most frequent complaints were reduced in the 200 patients studied with a 25 gauge needle rather than a 22 gauge needle. Regardless of the needle, patients with normal myelograms reported more adverse effects.ConclusionsA lower frequency of adverse effects can be achieved when fine needle is used for lumbar myelography. More adverse effects are reported by patients with normal myelograms.
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