Predictive Factors for Hypotension Associated With Supine-to-Prone Positional Change in Patients Undergoing Spine Surgery.
Hyun-Kyu Yoon, Hyung-Chul Lee, Jaeyeon Chung...
https://pubmed.ncbi.nlm.nih.gov/30475290Actively Recruiting
Age: 18Years +
All Genders
ID07549165
Hemodynamic Assessment Using the Inferior Vena Cava Collapsibility Index in Patients Undergoing Lumbar Stabilization Surgery
Led by Trabzon Kanuni Education and Research Hospital · Updated on 2026-04-23
128
Participants Needed
2
Research Sites
21 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating perioperative hemodynamic changes in patients undergoing lumbar stabilization surgery under general anesthesia. The study focuses on using the inferior vena cava (IVC) collapsibility index as a possible non-invasive measure of intravascular volume status and hemodynamic changes during surgery. This observational study includes adult patients classified as ASA physical status I, II, or III who are scheduled for elective lumbar spine stabilization surgery. The study involves measuring the IVC diameter and collapsibility index using ultrasonography at specific perioperative time points: before surgery, after anesthesia induction, and before extubation. Alongside ultrasound measurements, hemodynamic parameters such as blood pressure and heart rate will be recorded during these periods. The goal is to analyze changes in intravascular volume and hemodynamics throughout the surgery. Participants will undergo ultrasound imaging and continuous monitoring of vital signs during the perioperative period. The primary outcome is the IVC collapsibility index measured at three perioperative stages. Secondary outcomes include the incidence of intraoperative hypotension. The study will collect and analyze this data to assess the potential of IVC measurements as indicators of hemodynamic status during lumbar spine surgery.
CONDITIONS
Brief Title
IVC Collapsibility Index in Lumbar Stabilization Surgery
Who Can Participate
Age: 18Years +
All Genders
Eligibility Criteria
You may qualify if you...
- Age 18 years or older
- Classified as ASA physical status I, II, or III
- Scheduled for elective lumbar spine stabilization surgery under general anesthesia
- Ability to obtain adequate inferior vena cava ultrasonographic imaging
- Provided written informed consent
You will not qualify if you...
- Younger than 18 years
- Emergency surgery
- ASA physical status IV
- Undergoing revision lumbar stabilization surgery
- Baseline systolic blood pressure greater than 180 mmHg or less than 90 mmHg
- Heart failure with ejection fraction less than 40%
- Pulmonary artery pressure greater than 40 mmHg
- Presence of intra-abdominal mass, ascites, or increased intra-abdominal pressure
- Body mass index greater than 30 kg/m²
- Pregnancy
- Neurological or psychiatric disorders
- Inability to obtain adequate inferior vena cava ultrasonographic imaging
- Refusal to provide written informed consent
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
1
2
3
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Surgery and Immediate Post-operative Care
Duration - Surgical day and immediate post-operative period
Participants undergo lumbar spine stabilization surgery under general anesthesia in the prone position. Ultrasonographic measurements of the inferior vena cava diameter and collapsibility index, along with hemodynamic parameters such as blood pressure and heart rate, are recorded at predefined perioperative time points including preoperative period, after induction of anesthesia, and before extubation.
1 surgical visit with perioperative assessments
Trial Site Locations
Total: 2 locations
1
Trabzon University Faculty of Medicine Kanunı Training and Research Hospital ,Trabzon
Trabzon, Turkey (Türkiye), 61080
Actively Recruiting
2
Trabzon University Faculty of Medicine, Kanuni Training and Research Hospital
Trabzon, Turkey (Türkiye), 61080
Actively Recruiting
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Research Team
Ş
Şeyma Yüksel Ayar, MD
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
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Published Research Related To This Trial
Hemodynamic changes in the prone position according to fluid loading after anaesthesia induction in patients undergoing lumbar spine surgery: a randomized, assessor-blind, prospective study.
Sangho Lee, Doh Yoon Kim, Jihoon Han...
https://pubmed.ncbi.nlm.nih.gov/38794845