Internal Jugular Vein Collapsibility Index for Predicting Post-Induction Hypotension (IJV-CI)
The Value of Internal Jugular Vein Collapsibility Index in Predicting Hypotension Following General Anesthesia Induction in Patients Undergoing Elective Laparoscopic Cholecystectomy
調査の概要
詳細な説明
Patients aged 18-65 scheduled for elective laparoscopic cholecystectomy under general anesthesia will be included in the study. Exclusion criteria are as follows: Obesity (BMI > 35 kg/m²), presence of Atrial Fibrillation or serious cardiac arrhythmia, history of neck surgery or any pathology preventing internal jugular vein measurement, advanced heart failure (Ejection Fraction < 40%), severe valvular disease, peripheral vascular disease, emergency surgery, and refusal to participate in the study.
Upon arrival in the operating room, patients will be placed in a supine position. The Internal Jugular Vein (IJV) diameter will be monitored using a linear ultrasound probe during spontaneous breathing before anesthesia induction. The maximum and minimum diameters of the IJV during the respiratory cycle will be measured. The Internal Jugular Vein Collapsibility Index (IJV-CI) will be calculated using the following formula: [(IJV maximum diameter - IJV minimum diameter) / IJV maximum diameter] x 100.
Standard anesthesia induction will be performed. Non-invasive blood pressure and heart rate will be monitored and recorded at baseline (0 min), and at 1, 2, 3, 5, 7, 9, and 10 minutes following induction. Post-induction hypotension is defined as a decrease in mean arterial pressure (MAP) of more than 20% from the baseline value. The relationship between the pre-induction IJV-CI values and the development of hypotension during these specific time intervals will be statistically analyzed.
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前：ELZEM ŞEN, Associate Professor
- 電話番号：+90 (532) 784 21 52
- メール：drelzem@hotmail.com
研究連絡先のバックアップ
- 名前：KÜBRA BAHAR TÜRKMEN, MD
- 電話番号：+90 (534) 061 74 44
- メール：kbrabaharr@gmail.com
研究場所
-
-
-
Gaziantep、トルコ（Türkiye）、27310
- Gaziantep University Sahinbey Research and Training Hospital
-
コンタクト：
- KÜBRA BAHAR TÜRKMEN, MD
- 電話番号：+90 (534) 061 74 44
- メール：kbrabaharr@gmail.com
-
コンタクト：
- ELZEM ŞEN, Associate Professor
- 電話番号：+90 (532) 784 21 51
- メール：drelzem@hotmail.com
-
主任研究者：
- ELZEM ŞEN, Associate Professor
-
副調査官：
- KÜBRA BAHAR TÜRKMEN, MD
-
-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Patients aged 18-65 years.
- Patients with ASA (American Society of Anesthesiologists) physical status I, II, or III.
- Patients scheduled to receive general anesthesia.
- Patients scheduled for elective laparoscopic cholecystectomy.
Exclusion Criteria:
- Patients with obesity (Body Mass Index > 35 kg/m²).
- Patients with Atrial Fibrillation or other serious cardiac arrhythmias.
- Patients with a history of neck surgery or any pathology preventing Internal Jugular Vein (IJV) measurement.
- Patients with advanced heart failure (Ejection Fraction < 40%).
- Patients with severe valvular heart disease.
- Patients with peripheral vascular disease.
- Patients undergoing emergency surgery.
- Patients who are unwilling to participate in the study.
研究計画
研究はどのように設計されていますか？
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
|
Hypotensive Group
Patients who developed post-induction hypotension (MAP decrease >20% or SBP <90 mmHg).
Pre-induction Internal Jugular Vein (IJV) ultrasonography was performed for statistical comparison.
|
Pre-induction Internal Jugular Vein (IJV) measurement will be performed using a linear ultrasound probe (5-12 MHz) while the patient is in the supine position.
The IJV will be imaged in the transverse plane at the level of the cricoid cartilage.
During spontaneous breathing, the maximum and minimum diameters of the vein will be recorded.
The Collapsibility Index (IJV-CI) will be calculated using these measurements.
This non-invasive assessment is performed immediately before the induction of general anesthesia to evaluate its predictive value for post-induction hypotension.
他の名前：
|
|
Non-hypotensive Group
Patients aged 18-65 scheduled for elective laparoscopic cholecystectomy who remained hemodynamically stable (no MAP decrease >20% or SBP <90 mmHg) after standard anesthesia induction.
Pre-induction IJV measurement was performed to evaluate its predictive capacity."
|
Pre-induction Internal Jugular Vein (IJV) measurement will be performed using a linear ultrasound probe (5-12 MHz) while the patient is in the supine position.
The IJV will be imaged in the transverse plane at the level of the cricoid cartilage.
During spontaneous breathing, the maximum and minimum diameters of the vein will be recorded.
The Collapsibility Index (IJV-CI) will be calculated using these measurements.
This non-invasive assessment is performed immediately before the induction of general anesthesia to evaluate its predictive value for post-induction hypotension.
他の名前：
|
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Internal Jugular Vein Collapsibility Index (IJV-CI)
時間枠：Baseline (pre-induction) and every minute up to 10 minutes following induction or until surgical in
|
Hypotension is defined as a decrease in Mean Arterial Pressure (MAP) of more than 20% from the baseline value.
The predictive value of pre-induction IJV-CI for this occurrence will be assessed.Measurements will be recorded at 0, 1, 2, 3, 5, 7, 9, and 10 minutes following induction, but will stop if surgical incision occurs earlier than 10 minutes
|
Baseline (pre-induction) and every minute up to 10 minutes following induction or until surgical in
|
協力者と研究者
スポンサー
捜査官
- 主任研究者：ELZEM ŞEN, Associate Professor、Gaziantep University, Faculty of Medicine, Department of Anesthesiology and Reanimation
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- 2026/217
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。