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This study investigates the role of respiratory variation in the internal jugular vein as a tool for intraoperative fluid management during abdominal surgeries under general anesthesia.
The purpose of this clinical trial is to reduce postoperative complications and improve patient outcomes through proper intraoperative fluid management.
The main question it aims to answer is: Can intraoperative fluid management guided by the respiratory variation of the internal jugular vein during abdominal surgeries reduce postoperative complications? Research Hypothesis (Alternative Hypothesis): We hypothesize that fluid management guided by the respiratory variation of the internal jugular vein during abdominal surgeries can reduce postoperative complications.
The patients will be divided into two groups and randomized to receive either intraoperative fluid therapy guided by the respiratory variation of the internal jugular vein or standard fluid therapy. Postoperative complications, length of hospital stay, total amount of fluid administered intraoperatively, use of vasopressors in both groups, and incidence of hypotensive episodes will be recorded.
Sonographic measurement of respiratory variation of IJV will be performed with a Philips CX50 ultrasound device (Philips Healthcare, Hamburg, Germany), equipped with a linear transducer. Respiratory variation of IJV will be measured by the same anesthesiologist with sufficient experience in ultrasound guided IJV cannulation. The anesthesiologist performing the ultrasound examinations will not be involved in this study and blinded to the hemodynamic parameters; a lead plate separated the monitor from the anesthesiologist and ultrasound device. The optimal short axis of the IJV will be obtained at the level of the cricoid cartilage by placement of the transducer perpendicular to the skin on the patient's neck in a transverse plane. The vein will be identified with color Doppler imaging as well as by compression. Ultrasound measurements will be performed on the left IJV, M-mode scan will be used to record the IJV diameter at the end of inspiration (IJVmax) and expiration (IJVmin) over an entire respiratory cycle. The images will be then frozen. The respiratory variation of IJV will be calculated with the following formula: IJV RV (%) = (IJVmax - IJVmin)/ (IJVmin) × 100%. The average values of IJVmax and IJVmin from three consecutive respiratory circles will be used in the analysis.
The finding of a small-diameter IJV (<1cm) and increased IJV RV (>18) suggest low-volume states. Conversely, a large IJV diameter (>2.1cm) and decreased IJV RV (<18) will suggest a high-volume state.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Internal Jugular Vein (IJV) group (Study group) | Active Comparator | In this group, fluid therapy will be guided by the respiratory variation of IJV throughout the surgery. |
|
| Control group | No Intervention | In this group, conventional fluid therapy will be given to ensure that the mean arterial blood pressure is equal to or more than 65 mmHg. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Respiratory variation of the Internal Jugular Vein (IJV) | Diagnostic Test | In the study group, the fluid therapy will be guided by the respiratory variation (RV) of the Internal Jugular Vein (IJV) throughout surgery. Fluid maintenance will be continued as long as the IJV diameter is less than 2 cm and the IJV RV is more than 18. If the IJV diameter exceeds 2 cm and the IJV RV is less than 18, fluids will be stopped. |
| Measure | Description | Time Frame |
|---|---|---|
| The primary outcome is the incidence of postoperative complications in both groups, which will be measured by the occurrence of any of the postoperative complications during the first seven postoperative days in both groups | Postoperative complications will include: (i) infections (urinary tract infection, wound infection, sepsis/septic shock) (ii) GI (Ileus, acute bowel obstruction, GI bleeding, abdominal compartment syndrome), (iii) Cardiovascular (deep venous thrombosis, pulmonary embolism, myocardial ischemia or infarction, cardiac arrest), (iv) Renal (AKI) (v) Respiratory (pneumonia, prolonged mechanical ventilation (more than 24 hours), respiratory failure, ARDS). | The first seven postoperative days |
| Measure | Description | Time Frame |
|---|---|---|
| The length of hospital stay in both groups | Up to 30 days postoperatively. | |
| Assessment of the total amount of fluid administered intraoperatively in both groups | Intraoperatively (From the start to the end of the surgery) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Mohammad E Salama, MD | Contact | 00201016865861 | MohammadElhossieny88@med.suez.edu.eg | |
| Adel A Hassan, MD | Contact | 00201007921234 | adel.hassan@med.psu.edu.eg |
| Name | Affiliation | Role |
|---|---|---|
| Mohammad E Salama, MD | Suez canal university hospitals | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Suez Canal University Hospitals | Not yet recruiting | Ismailia | Ismailia Governorate | 41522 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37009935 | Result | Sanfilippo F, La Via L, Dezio V, Santonocito C, Amelio P, Genoese G, Astuto M, Noto A. Assessment of the inferior vena cava collapsibility from subcostal and trans-hepatic imaging using both M-mode or artificial intelligence: a prospective study on healthy volunteers. Intensive Care Med Exp. 2023 Apr 3;11(1):15. doi: 10.1186/s40635-023-00505-7. | |
| 33317803 |
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| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| ID | Term |
|---|---|
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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|
| Intraoperative vasopressor use in both groups | Intraoperatively (From the start to the end of the surgery) |
| Intraoperative hypotensive episodes in both groups | Intraoperatively (From the start to the end of the surgery) |
| Suez Canal University Hospitals | Recruiting | Ismailia | Egypt |
|
| Miller TE, Mythen M, Shaw AD, Hwang S, Shenoy AV, Bershad M, Hunley C. Association between perioperative fluid management and patient outcomes: a multicentre retrospective study. Br J Anaesth. 2021 Mar;126(3):720-729. doi: 10.1016/j.bja.2020.10.031. Epub 2020 Dec 13. |
| 29340792 | Result | Ma GG, Hao GW, Yang XM, Zhu DM, Liu L, Liu H, Tu GW, Luo Z. Internal jugular vein variability predicts fluid responsiveness in cardiac surgical patients with mechanical ventilation. Ann Intensive Care. 2018 Jan 16;8(1):6. doi: 10.1186/s13613-017-0347-5. |
| 37009197 | Result | Kan CFK, Skaggs JD. Current Commonly Used Dynamic Parameters and Monitoring Systems for Perioperative Goal-Directed Fluid Therapy: A Review. Yale J Biol Med. 2023 Mar 31;96(1):107-123. doi: 10.59249/JOAP6662. eCollection 2023 Mar. |
| 38337495 | Result | Deslarzes P, Jurt J, Larson DW, Blanc C, Hubner M, Grass F. Perioperative Fluid Management in Colorectal Surgery: Institutional Approach to Standardized Practice. J Clin Med. 2024 Jan 30;13(3):801. doi: 10.3390/jcm13030801. |
| 36536919 | Result | Dai S, Shen J, Tao X, Chen X, Xu L. Can ultrasonographic measurement of respiratory variability in the diameter of the internal jugular vein and the subclavian vein predict fluid responsiveness in parturients during cesarean delivery? A prospective cohort study. Heliyon. 2022 Dec 13;8(12):e12184. doi: 10.1016/j.heliyon.2022.e12184. eCollection 2022 Dec. |
| 31795621 | Result | Kang D, Yoo KY. Fluid management in perioperative and critically ill patients. Acute Crit Care. 2019 Nov;34(4):235-245. doi: 10.4266/acc.2019.00717. Epub 2019 Nov 29. |
| 34389168 | Result | Aaen AA, Voldby AW, Storm N, Kildsig J, Hansen EG, Zimmermann-Nielsen E, Jensen KM, Tibaek P, Mortensen A, Moller AM, Brandstrup B. Goal-directed fluid therapy in emergency abdominal surgery: a randomised multicentre trial. Br J Anaesth. 2021 Oct;127(4):521-531. doi: 10.1016/j.bja.2021.06.031. Epub 2021 Aug 11. |