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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05968105
Other study ID # e.mendes - 3
Secondary ID KAEK/2023.06.260
Status Completed
Phase
First received
Last updated
Start date August 2, 2023
Est. completion date December 3, 2023

Study information

Verified date December 2023
Source Basaksehir Cam & Sakura Sehir Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

In patients with fluid deficit, vasoconstriction occurs in peripheral tissues and blood circulation is kept in the central area. It causes arterial vasodilation and hemodynamic variability by increasing the blood volume of the extremity due to the sympathectomy occurring after the block. When the investigators classify patients according to VCI-CI, it will be questioned whether there is a difference between patients' block quality and hemodynamic variability.


Description:

VCI-CI helps us to have an idea about the amount of fluid in patients according to the vena cava Inferior (VCI) diameter and the diameter between the inspiring and expiration. Low arterial diameter and high inspiratory and expiratory variability indicate that the patient's fluid volume may be lower. In the measurement of VCI diameter, VCI has visualized in the craniocaudal plane thanks to the transverse ultrasound probe. Changes in VCI diameter are observed depending on the negative pressure in the thoracic area during inspiration and expiration. When the difference between this rate of change is greater than 50%, it indicates that the patient has a fluid deficit. The fact that the VCI diameter is also below 1.5 cm indicates that this amount of fluid requirement is more serious. In this study, the investigators will question whether there is a difference between patients' block quality and hemodynamic variability when they classify patients according to VCI-CI.


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date December 3, 2023
Est. primary completion date December 3, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion criteria: - Hand and Wrist elective surgery - Infraclavicular block will be applied - American Society of Anesthesiologists (ASA) physical condition I-II - Patients aged 18-65 years Exclusion Criteria: - Contraindication for central or peripheral blocks - Cognitive dysfunction - History of chronic opioid use - severe organ dysfunction - Allergy to any drug used in the study - Body mass index (BMI) =30 - Infection in the area to be treated - Refusal to participate in the research

Study Design


Intervention

Procedure:
Lateral Sagittal Infraclavicular Block
Patients will be in the supine position and after aseptic conditions are provided, the axillary artery of the patient will be visualized in the craniocaudal plane, in the infraclavicular region and in the lateral sagittal position with the help of an 8-12 mHz linear probe. After the brachial plexus cords around the axillary artery are identified, a local anesthetic mixture will be applied in-plane between the posterior cord and the artery. During the block, patients will routinely be given a mixture of 0.25% bupivacaine + 0.5% lidocaine 0.5 mL/kg.
Inferior vena cava diameter >1.5 cm and Vena Cava Inferior Collapsibility Index (VCI-CI) < 50%
While the patients are lying in the supine position, the vena cava will be determined 2 cm before the inferior heart entrance with the help of a 3.5-5 mHz convex probe. M-mode ECHO will be used to determine the fluctuation rate of the VCI between inspiration and expiration. After determining the farthest and closest points in M-mode ECO, their ratios to each other will be calculated.
Diagnostic Test:
Inferior vena cava diameter <1.5 cm and Vena Cava Inferior Collapsibility Index (VCI-CI) > 50%
While the patients are lying in the supine position, the vena cava will be determined 2 cm before the inferior heart entrance with the help of a 3.5-5 mHz convex probe. M-mode ECHO will be used to determine the fluctuation rate of the VCI between inspiration and expiration. After determining the farthest and closest points in M-mode ECO, their ratios to each other will be calculated.

Locations

Country Name City State
Turkey Ergun Mendes Küçükçekmece I?stanbul

Sponsors (1)

Lead Sponsor Collaborator
Basaksehir Cam & Sakura Sehir Hospital

Country where clinical trial is conducted

Turkey, 

References & Publications (1)

Zhang H, Yuan H, Yu H, Zhang Y, Feng S. Correlation between pleth variability index and ultrasonic inferior vena cava-collapsibility index in parturients with twin pregnancies undergoing cesarean section under spinal anesthesia. Eur J Med Res. 2022 Aug 6;27(1):139. doi: 10.1186/s40001-022-00771-3. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Doppler flow change from baseline to postoperative period Before the block, with the help of 8-12 mHz linear probe, the axillary artery of the patients will be determined in the lateral sagittal plane and their diameters at the time of systole and diastole will be determined. After the arterial diameters are determined, the probe will be positioned to view the artery in a linear line with 90 degree rotation. After imaging the axillary artery in the long axis, confirming it with 5 sequential flows in B-mode Doppler, PSV (Peak systolic velocity), EDV (End diastolic velocity), mV (mean velocity), RI index and PI index probe angulation at 30-60 degree angle, ultrasound will be measured automatically. After the block, the sensory and motor block times of the patients were determined and these times were recorded. Perioperative period
Secondary VAS (Visual Analog Scala) score The patients were followed up with a VAS score between 0-10 in the postoperative period. A VAS score of 0 was defined as no pain, and 10 as the most severe pain imaginable. Postoperative 24th hour
Secondary Analgesic consumption he value in mg of the amount of analgesic consumed in the postoperative period. It was administered with a PCA device that had regular infusions and was able to deliver bolus doses at regular intervals Postoperative 24th hour
Secondary Postoperative nausea and vomiting The frequency of nausea and vomiting in the postoperative period was calculated according to the Numeric Rank Score (NRS), which ranged from 0 to 3. Nausea-vomiting status of the patients: 0 points if there is no nausea and vomiting; 1 point if there is nausea, no vomiting; It is scored as 2 points if there is vomiting once and 3 points if there are two or more vomiting attacks. Postoperative 24th hour
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