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Completed

NCT Number: NCT04065763

Correlation of the Dural Sac Dimension With the Spread of Spinal Anesthesia

Cerebrospinal fluid volume is an important factor that influences peak block height and regression of sensory and motor blockade. The aim of this study is to evaluate the effect of dural sac dimension on the spread of spinal anesthesia in elderly patient using ultrasound.

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Key information

Conditions

Elderly Patients

Age range

65 year and older

Sex eligibility

Female

Study type

Observational

Primary location

SMG-SNU Boramae Medical Center

Seoul, South Korea

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients who are scheduled for elective surgery under spinal anesthesia

Exclusion criteria

  • Known anatomical abnormality or pathology in the spine
  • History of lumbar spinal surgery or compression fracture
  • Height less than 150 cm

Treatment and study plan

Ultrasound assessment of dural sac dimension

Other

Dural sac dimension is assessed using ultrasonography in the lateral decubitus position for spinal anesthesia.

Primary outcomes

  1. Correlation between the dural sac dimension and spinal anesthesia spread (peak sensory block)

    Time frame: At 30 minutes after the induction of spinal anesthesia

    The dural sac dimension is assessed before spinal anesthesia. After spinal anesthesia, the sensory and motor level are evaluated. Then, the correlation between the dural sac dimension and spinal anesthesia blockade is assessed.

Secondary outcomes

  1. Correlation between the dural sac dimension and duration of spinal anesthesia

    Time frame: At 30 minutes after the end of surgery

    The sensory and motor regression are assessed. Then, the correlation between the dural sac dimension and the duration of spinal blockade is assessed.

  2. Correlation between the dural sac dimension and body mass index

    Time frame: 5 minutes before spinal anesthesia

    Correlation between the dural sac dimension and body mass index is assessed.

  3. Correlation between the dural sac dimension and waist circumference

    Time frame: 5 minutes before spinal anesthesia

    Correlation between the dural sac dimension and waist circumference is assessed.

  4. Correlation between the dural sac dimension and age

    Time frame: 5 minutes before spinal anesthesia

    Correlation between the dural sac dimension and age is assessed.

Sponsors and collaborators

Lead sponsor

SMG-SNU Boramae Medical Center

Other

Registry information

Official study title

Correlation of the Dural Sac Dimension With the Spread of Spinal Anesthesia in Elderly Patients

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Aug 22, 2019
Registry last updated
Mar 11, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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