Anesthesia ComplicationNCT04573842
Ultrasound Assessment of the Subclavian Vein for Predicting Hypotension in Children After Anaesthesia Induction
An observational study of Anesthesia Complication and Hypotension on Induction, run by Karolinska Institutet at 1 site in Sweden.
Trial summary
Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). In summary, the study aims at examine if ultrasound assessment of the diameter and collapsibility index of the subclavian vein is correlated to fasting time and if they are correlated to the degree of… Read more about this study
- Who is it for?
- Ages 0 to 18 yearsHealthy volunteers can take part
- Conditions the study is for
- Anesthesia Complication, Hypotension on Induction, Hypovolemia
- What is being tested?
- Ultrasound assessment of SCV
- How many people
- 30 participants
- Where
- 1 siteSweden
- Study dates
- 30 Nov 2020to 7 Oct 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 0 to 18 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: Children aged 0-18 years ASA 1-2 undergoing anesthesia for day case surgery
Who may be able to join
- Children undergoing anesthesia for day case surgery in the age group newborn to eighteen years.
Who cannot join
- Ongoing medication for hypertension. ASA status of more than 2.
Trial locations and contacts
1 site in 1 country.
About this study
Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). In summary, the study aims at examine if ultrasound assessment of the diameter and collapsibility index of the subclavian vein is correlated to fasting time and if they are correlated to the degree of hypotension seen post anesthesia induction in children undergoing general anesthesia.
Read the detailed description
Background: Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). Bedside ultrasonic assessment of the inferior vena cava (IVC) and IVC collapsibility index (IVCCI) has been shown to indicate fluid status in both adults and children breathing spontaneously (Marcell Szabó et al. BMC Anesthesiol. 2019; 19: 139., Lei Chen et al.Acad Emerg Med. 2007 Oct;14(10):841-5.). Ultrasound assessment of subclavian vein/axillary vein collapsibility has recently been shown to predict hypotension after induction of general anesthesia in adults (Min Hee Choi et al. Eur J Anaesthesiol 2020; 37:474-481). The inverstigators hypothesized that subclavian vein (SCV) collapsibility index is correlated to fasting time and potentially can be used to predict post induction hypotension in children.
Objective: To examine if ultrasound assessment of the diameter and collapsibility index of the SCV is correlated to fasting time and can be a predictor of post induction hypotension in children undergoing general anesthesia.
Design and setting: Prospective observational study in a day case surgical unit in a tertiary university hospital.
Patients: Children aged 0-18 years ASA 1-2 undergoing anesthesia for day case surgery after written and informed consent from parents is obtained according to local ethical permit. Exclusion criteria: ongoing medication for hypertension.
Measurements and results: Based on previous studies (Min Hee Choi et al. Eur J Anaesthesiol 2020; 37:474-481), a sample size of approximately 80 subjects will be needed. Data on fasting time will be collected after informed and written consent has been obtained. Before the induction of anesthesia, the patients will be breathing spontaneously in a supine position. Noninvasive blood pressure will be recorded. An ultrasound examination of SCV will then be performed on cross section of the vessel both in 2D and M-mode and the minimum and maximum diameters of the SCV will be recorded. Collapsibility index will then be calculated from these data as previously described (Min Hee Choi et al. Eur J Anaesthesiology 2020; 37:474-481). After this, the subjects will undergo anesthesia under which blood pressure will be recorded according to departmental standard as usual. SCV collapsibility index will then be investigated for potential significant correlation with fasting time and percentage decrease in blood pressure from baseline after anesthesia induction and during the surgical preparation phase, before start of surgery.
- Being tested
- Ultrasound assessment of SCV
- Medical subject headings
- Hypovolemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ultrasound assessment of SCVOther
An ultrasound examination of the SCV will be performed before anesthesia induction. Apart from this, the protocol does not differ at all from the ordinary fashion
What is being measured
The primary outcome is the main question the study is designed to answer.
SCV Collapsibility index correlation to post induction hypotension
SCV Collapsibility index correlation to percentage change in non invasive blood pressure from baseline recordings pre anesthesia induction
Measured: 120 minutes
Secondary outcomes (1)
SCV Collapsibility index correlation to fasting time
SCV Collapsibility index correlation to fasting time in hours
Measured: 120 min minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Oct 2020
- Study start30 Nov 2020
- Primary completion7 Oct 2021
- Study completion7 Oct 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Anesthesia ComplicationStudies of the same condition, open and under way.
- More trials run by Karolinska InstitutetThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Karolinska Institutet
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jacob Karlsson, Karolinska Institutet
- Investigators
- Per-Arne Lönnqvist, Prof, Study chair, Karolinska University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04573842
- Sponsor's protocol ID
- KarolinskaSCV
- Status last verified
- Jun 2022
- First submitted
- 28 Sep 2020
- Last updated
- 21 Jun 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 Jun 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Ultrasound Assessment of the Subclavian Vein for Predicting Hypotension in Children After Anaesthesia Induction
- ClinicalTrials.gov ID
- NCT04573842
- Acronym / sponsor ID
- KarolinskaSCV
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Karolinska InstitutetUniversity, hospital or other
- Study start
- 30 Nov 2020 (actual)
- Primary completion
- 7 Oct 2021 (actual)
- Study completion
- 7 Oct 2021 (actual)
- First posted
- 5 Oct 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). In summary, the study aims at examine if ultrasound assessment of the diameter and collapsibility index of the subclavian vein is correlated to fasting time and if they are correlated to the degree of hypotension seen post anesthesia induction in children undergoing general anesthesia.
Detailed description
Background: Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). Bedside ultrasonic assessment of the inferior vena cava (IVC) and IVC collapsibility index (IVCCI) has been shown to indicate fluid status in both adults and children breathing spontaneously (Marcell Szabó et al. BMC Anesthesiol. 2019; 19: 139., Lei Chen et al.Acad Emerg Med. 2007 Oct;14(10):841-5.). Ultrasound assessment of subclavian vein/axillary vein collapsibility has recently been shown to predict hypotension after induction of general anesthesia in adults (Min Hee Choi et al. Eur J Anaesthesiol 2020; 37:474-481). The inverstigators hypothesized that subclavian vein (SCV) collapsibility index is correlated to fasting time and potentially can be used to predict post induction hypotension in children.
Objective: To examine if ultrasound assessment of the diameter and collapsibility index of the SCV is correlated to fasting time and can be a predictor of post induction hypotension in children undergoing general anesthesia.
Design and setting: Prospective observational study in a day case surgical unit in a tertiary university hospital.
Patients: Children aged 0-18 years ASA 1-2 undergoing anesthesia for day case surgery after written and informed consent from parents is obtained according to local ethical permit. Exclusion criteria: ongoing medication for hypertension.
Measurements and results: Based on previous studies (Min Hee Choi et al. Eur J Anaesthesiol 2020; 37:474-481), a sample size of approximately 80 subjects will be needed. Data on fasting time will be collected after informed and written consent has been obtained. Before the induction of anesthesia, the patients will be breathing spontaneously in a supine position. Noninvasive blood pressure will be recorded. An ultrasound examination of SCV will then be performed on cross section of the vessel both in 2D and M-mode and the minimum and maximum diameters of the SCV will be recorded. Collapsibility index will then be calculated from these data as previously described (Min Hee Choi et al. Eur J Anaesthesiology 2020; 37:474-481). After this, the subjects will undergo anesthesia under which blood pressure will be recorded according to departmental standard as usual. SCV collapsibility index will then be investigated for potential significant correlation with fasting time and percentage decrease in blood pressure from baseline after anesthesia induction and during the surgical preparation phase, before start of surgery.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 0 to 18 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Children aged 0-18 years ASA 1-2 undergoing anesthesia for day case surgery
Key inclusion criteria (1 listed)
- Children undergoing anesthesia for day case surgery in the age group newborn to eighteen years.
Key exclusion criteria (1 listed)
- Ongoing medication for hypertension. ASA status of more than 2.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Ultrasound assessment of SCVAn ultrasound examination of the SCV will be performed before anesthesia induction. Apart from this, the protocol does not differ at all from the ordinary fashion | Other | – |
Primary outcome
SCV Collapsibility index correlation to post induction hypotension
Time frame: 120 minutes
SCV Collapsibility index correlation to percentage change in non invasive blood pressure from baseline recordings pre anesthesia induction
1 secondary outcome
SCV Collapsibility index correlation to fasting time
Time frame: 120 min minutes
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Jun 2022.
- Individual participant dataSharing planned: No
Related trials for Anesthesia Complication
Not yet recruiting
Bispectral Index-Guided Propofol Sedation During Endoscopic Retrograde Cholangiopancreatography
Deep Sedation, Endoscopic Retrograde Cholangiopancreatography
Not yet recruitingObservational study
Ultrasound Assessment Of Gastric Volume In Pregnant Women Undergoing Elective Cesarean Section
Gestational Diabetes Mellitus (GDM), Obstetric Anesthesia
RecruitingObservational study
The Impact of Fast-Track Anesthesia on Postoperative Neurocognitive Function in Patients Undergoing Cardiac Surgery
Delirium - Postoperative, Cardiac Surgery
Not yet recruitingPhase 4
Effect of Prophylactic Dexamethasone vs Placebo on Airway Dimensions Assessed by Ultrasonography in Patients Undergoing Laparoscopic Cholecystectomy
Airway Edema, Postoperative Complications
Not yet recruiting
Magnesium Sulphate as an Adjuvant in Combined Costoclavicular Block and Suprascapular Block Versus Interscalene Block for Ambulatory Shoulder Arthroscopy
Postoperative Pain, Shoulder Arthroscopy
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Per-Arne Lönnqvist, Prof study chair
Karolinska University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Anesthesia Complication and Hypotension on Induction, run by Karolinska Institutet at 1 site in Sweden.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Jun 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
SCV Collapsibility index correlation to post induction hypotension (time frame: 120 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jun 2022.