Ultrasound-Assisted Lumbar Puncture: a Randomized Controlled Trial


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Primary Outcome Measures:
Secondary Outcome Measures:

  • Number of Procedures Considered to be Failures [ Time Frame: Approximately 1 hour ]

    As defined by inability to obtain cerebrospinal fluid despite multiple attempts, terminated at the discretion of the procedurist as would otherwise be clinically determined.

  • Number of Fluoroscopically Guided or CT Guided Lumbar Punctures [ Time Frame: Approximately 7 days ]

    In the event of ultrasound procedural failure by clinician

  • Total number of unique skin punctures [ Time Frame: Approximately 1 day ]

    This will be defined by the needle bevel completely exiting and skin and being re-inserted, during the duration of the procedure, whether the procedure is ultimately successful or not.

  • Procedurist reported ease of the procedure [ Time Frame: Approximately 1 day ]

    Procedurist reported ease of the procedure will be reported by a 10 cm visual analog scale, with 0=easy and 10=very difficult.

  • Patient reported discomfort [ Time Frame: Approximately 1 day ]

    Patient reported discomfort will be reported by a 10 cm visual analog scale, with 0=no discomfort and 10=extreme discomfort.

  • Number of red blood cells in collected CSF [ Time Frame: Approximately 1 day ]

    This will be abstracted manually from the patient’s electronic medical record.

  • Hospital Length of Stay [ Time Frame: Approximately 1 month ]

    This will be abstracted manually from the patient’s electronic medical record.