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Preprocedural ultrasound versus landmark techniques for spinal anesthesia performed by novice residents in elderly: A randomized controlled trial
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Spinal anesthesia using the midline approach might be technically difficult in geriatric population. We hypothesized that pre-procedural ultrasound (US)-guided paramedian technique and pre-procedural US-guided midline technique would result in a different spinal anesthesia success rate at first attempt when compared with the conventional landmark-guided midline technique in elderly patients.
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