Hemodynamic Changes, Intravascular Volume Status, Lumbar Spine Surgery
Conditions
Keywords
Inferior Vena Cava • IVC Collapsibility Index • Lumbar Stabilization Surgery • Hemodynamic Monitoring
Brief summary
This study aims to evaluate perioperative hemodynamic changes using the inferior vena cava (IVC) collapsibility index in patients undergoing lumbar stabilization surgery under general anesthesia. The IVC diameter and collapsibility index will be measured using ultrasonography at predefined perioperative time points. Hemodynamic parameters such as blood pressure and heart rate will also be recorded. The study seeks to determine whether the IVC collapsibility index can be used as a non-invasive indicator of intravascular volume status and hemodynamic changes during lumbar spine surgery.
Detailed description
his prospective study aims to evaluate perioperative hemodynamic changes using the inferior vena cava (IVC) collapsibility index in patients undergoing lumbar stabilization surgery under general anesthesia in the prone position. The inferior vena cava diameter will be measured using ultrasonography at different perioperative time points, including the preoperative period, after induction of anesthesia, and before extubation. The IVC diameter and collapsibility index will be recorded and analyzed to assess changes in intravascular volume status during the perioperative period. In addition to ultrasonographic measurements, hemodynamic parameters such as blood pressure and heart rate will be monitored and recorded. The study aims to investigate whether the IVC collapsibility index can be used as a non-invasive indicator of intravascular volume status and perioperative hemodynamic changes in patients undergoing lumbar spine surgery.
Interventions
None listed
Sponsors
Trabzon Kanuni Education and Research Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Age ≥ 18 years * Patients classified as ASA physical status I-II-III * Patients scheduled for elective lumbar spine stabilization surgery under general anesthesia * Ability to obtain adequate inferior vena cava (IVC) ultrasonographic imaging * Provision of written informed consent
Exclusion criteria
* Age younger than 18 years * Emergency surgery * American Society of Anesthesiologists (ASA) physical status IV * Patients undergoing revision lumbar stabilization surgery * Baseline systolic blood pressure \>180 mmHg or \<90 mmHg * Heart failure with ejection fraction (EF) \<40% * Pulmonary artery pressure (PAP) \>40 mmHg * Presence of intra-abdominal mass, ascites, or increased intra-abdominal pressure * Body mass index (BMI) \>30 kg/m² * Pregnancy * Patients with neurological or psychiatric disorders * Inability to obtain adequate inferior vena cava (IVC) ultrasonographic imaging * Refusal to provide written informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Inferior Vena Cava Collapsibility Index | Perioperative period (preoperative assessment, after anesthesia induction, and before extubation) | The inferior vena cava (IVC) collapsibility index will be measured using ultrasonography at predefined perioperative time points (preoperative period, after induction of general anesthesia, and before extubation) in patients undergoing elective lumbar spine surgery in the prone position. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Intraoperative Hypotension Incidence | During the intraoperative period | The occurrence of intraoperative hypotension during lumbar spine surgery under general anesthesia will be recorded. Hypotension will be defined as mean arterial pressure below 65 mmHg. |
Countries
Turkey (Türkiye)
Contacts
CONTACTŞeyma Yüksel Ayar, MD
Outcome results
None listed