AzTrials
AzTrials

Intra-aortic Balloon PumpNCT06947174

The Role of Angiographic Measurements and Anatomical Correlations in Intra-Aortic Balloon Pump (IABP) Size Selection

An observational study of Intra-aortic Balloon Pump, run by Siriraj Hospital at 1 site in Thailand.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

The goal of this study aim to accurately size the IABP size for patients. The main questions it aims to answer are: Are patients's height, jugular notch to transpyloric plane distance and distance from the carina to the upper part of the first lumbar vertebra (measured by chest X-ray) are a good surrogate for IABP… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Intra-aortic Balloon Pump
How many people
68 participants
Where
1 siteThailand
Study dates
25 Jan 2025to 31 Dec 2025
Phase
Observational
Are there results?
Not yet: the study is under way

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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients undergoing transfemoral angiography at Siriraj cauterization lab.

Who may be able to join

  • Patients had obtained CT scan of chest with upper abdomen with celiac trunk visualize within 1 year from the day of transfemoral angiography
  • Patients had who will undergo transfemoral angiography as clinical indicated
  • Patients had obtained Chest X-ray within 1 year from the day of transfemoral angiography

Who cannot join

  • Patient with limb amputation
  • Patient with known aortic abnormalities such as aortic aneurysm, aortic dissection

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

James Tisyakorn, Doctor of Medicine contact

+66925549747

james51236@gmail.com

Ploy Pengchata, Doctor of Medicine contact

+66894500223

ploypeng097@gmail.com

Thailand1 site, 1 recruiting
  • Siriraj Hospital

    Bangkok Noi, Bangkok, 10700

    James Tisyakorn, Doctor of Medicine, +66925549747, james51236@gmail.com

    Ploy Pengchata, Doctor of Medicine, +66894500223, ploypeng097@gmail.com

    Recruiting

Other trials in Thailand

About this study

The goal of this study aim to accurately size the IABP size for patients. The main questions it aims to answer are:

  • Are patients's height, jugular notch to transpyloric plane distance and distance from the carina to the upper part of the first lumbar vertebra (measured by chest X-ray) are a good surrogate for IABP sizing?
  • Is the distance obtained during a transfemoral artery catheterization a reliable way to size the IABP? Researchers will enroll patient who have had previous CT that include thoracic aorta to celiac trunk who will undergo transfemoral angiography.
  • All patients that researcher enrolled will undergo transfemoral angiography, during which the researchers will measure the vessel distance using a wire after the procedure end.
  • Researchers will measure the height weight, jugular notch to transpyloric plane distance, CXR distance from carina to upper border of L1 and the distance from aorta at subclavian level to celiac trunk from CT.
  • Researchers will find the correlation between of each measurement to the distance from aorta at subclavian level to celiac trunk from CT (considered the standard measure).
Read the detailed description

Background:

  • Intra-aortic balloon pumps (IABP) are commonly used as mechanical circulatory support in patient with cariogenic shock.
  • Proper sizing of IABP is critical, critical, with the balloon typically extending from the left subclavian artery to the celiac axis, and occupying 90-95% of the aorta's diameter during each cycle.
  • Manufacturers usually recommend balloon sizes based on patient height. However, previous studies suggest that the accuracy of these recommendations varies. One study found that while chest X-ray (CXR) confirmed correct balloon positioning in 96.8% of cases, only 38.1% were accurately positioned based on CT scans.
  • Malposition of the balloon, such as blocking the renal or mesenteric arteries, may lead to complications like renal or intra-abdominal ischemia
  • Cadaveric studies have suggested that the distance from the jugular notch to the transpyloric plane correlates more strongly with the subclavian-to-celiac artery distance than height alone
  • A Chinese study attempted to predict the left subclavian artery to celiac trunk distance using a combination of height, body mass index (BMI), and age
  • In this study, investigators want to find the better way in sizing IABP balloon. Investigators with use the height, age, weight, jugular notch to transpyloric plane distance, distance from the carina to the upper part of the first lumbar vertebra (measured by chest X-ray) and length of the vessel measured during transfemoral angiography compare with distance of the vessel measure during CT-scan.

Outcome

  • Investigators will find the correlation between height, jugular notch to transpyloric plane distance, wire pull out distance from aortic knob to L1 in angiographic study and distance of left subclavian artery to celiac trunk measure from CT aorta using Pearson Correlation or Spearman rank statistics.
  • Referencing previous studies

The correlation coefficient between height and the distance to the LCA-celiac trunk was 0.369 , and the correlation coefficient between height and the distance to the LCA-renal artery was 0.579 (Igari T. The length of the aorta from the subclavian artery to the renal artery based on computed tomographic measurements in Japanese adults. Journal of Artificial Organs. 2006;9:267-70.). The researcher chose to use the lower correlation coefficient of 0.369 for calculating sample size to achieve a maximum sample size.Using the formula for calculating sample size for correlation coefficient testing, with a standard value of 1.96 set at a significance level of 5% and a power of 80%, the sample size was calculated as follows:

  • Fisher's Z Transformation from formula = = 1/2 ln((1+(0.369))/(1-(0.369)))= 0.387 Calculate sample size by n= ((1.96+0.84)/(0.387))^2+3 n = 56 Sample size from this calculation is 56, it was determined that an additional sample size of 56 participants is needed, with a further increase of 20% to account for potential data loss, resulting in an additional 12 participants, totaling 68 individuals. Therefore, the sample size used in this study is 68 participants Recruitments - Investigators will review patients scheduled for angiography to determine if they have had a CT chest scan that includes the celiac trunk and are eligible for the study.

Inclusion criteria are

  1. Patient age ≥ 18 years old
  2. Patients had obtained CT scan of chest with upper abdomen with celiac trunk visualize within 1 year from the day of transfemoral angiography
  3. Patients had who will undergo transfemoral angiography as clinical indicated
  4. Patients had obtained Chest X-ray within 1 year from the day of transfemoral angiography Exclusion criteria are
  5. Patient with limb amputation 2. Patient with known aortic abnormalities such as aortic aneurysm, aortic dissection Study procedure
  • Before the patient's arrival at the catheterization lab, the investigator will seek their consent to participate in the study.
  • Patients will be informed that their treatment will proceed as usual, with the only additional step being a request for the procedure operator to measure the pullback wire distance at the end of the procedure. This step will result in slightly more radiation exposure but will take less than one minute to complete and does not increase the procedural risk.
  • If the operator determines that the patient is unstable, the measurement will not be performed. Patients who choose not to participate will still receive their standard treatment without any changes.
  • Other measurements such as height weight will be collected per Cath lab protocol.
  • The measurement of jugular notch to transpyloric plane distance will be collect at the recovery ward.
Keywords
Intra-aortic balloon pump

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Height

    Height of the patients

    Measured: Day 1

  2. Weight

    Weight of the patient

    Measured: Day 1

  3. Jugular notch to transpyloric plane distance

    Distance from jugular notch to transpyloric plane (Horizontal plane between jugular notch to pubic symphysis)

    Measured: Day 1

  4. distance from the carina to the upper part of the first lumbar vertebra (measured by chest X-ray)

    distance from the carina to the upper part of the first lumbar vertebra (measured by chest X-ray)

    Measured: through study completion, an average of 1 year

  5. distance of left subclavian artery to celiac trunk measure from CT scan.

    distance of left subclavian artery to celiac trunk measure from CT scan.

    Measured: through study completion, an average of 1 year

  6. distance from the carina to the upper part of the first lumbar vertebra measure by wiring distance during transferal angiography

    Wiring distance is obtained during the transferal angiography after the procedure is done and when the operator take the wire out. Mesure at the carina level to the upper part of the first lumbar vertebra

    Measured: Day 1

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Apr 2025
  2. Study start25 Jan 2025
  3. Primary completion30 Nov 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

Resources

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
68 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06947174
Sponsor's protocol ID
928/2567(IRB4)
Status last verified
Apr 2025
First submitted
7 Apr 2025
Last updated
27 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Publications

  • Yang IY, Oraee S, Viejo C, Stern H. Computed tomography celiac trunk topography relating to celiac plexus block. Reg Anesth Pain Med. 2011 Jan-Feb;36(1):21-5. doi: 10.1097/AAP.0b013e318203067f.

    PubMed 21455084
  • Kim JT, Lee JR, Kim JK, Yoon SZ, Jeon Y, Bahk JH, Kim KB, Kim CS, Lim YJ, Kim HS, Kim SD. The carina as a useful radiographic landmark for positioning the intraaortic balloon pump. Anesth Analg. 2007 Sep;105(3):735-8. doi: 10.1213/01.ane.0000278086.23266.35.

    PubMed 17717232
  • Chaturvedi A, Rotman Y, Hoang T, Jew G, Mandalapu A, Narins C. CT and chest radiography in evaluation of mechanical circulatory support devices for acute heart failure. Insights Imaging. 2023 Jul 16;14(1):122. doi: 10.1186/s13244-023-01469-8.

    PubMed 37454301
  • Rhodes NG, Johnson TF, Boyum JH, Khandelwal A, Howell BD, Froemming AT, Behfar A. Radiology of Intra-Aortic Balloon Pump Catheters. Radiol Cardiothorac Imaging. 2022 Apr 14;4(2):e210120. doi: 10.1148/ryct.210120. eCollection 2022 Apr.

    PubMed 35506140
  • Parissis H, Soo A, Leotsinidis M, Dougenis D. A statistical model that predicts the length from the left subclavian artery to the celiac axis; towards accurate intra aortic balloon sizing. J Cardiothorac Surg. 2011 Aug 9;6:95. doi: 10.1186/1749-8090-6-95.

    PubMed 21827666
  • Byon HJ, Kim H, Kim HC, Kim JT, Kim HS, Lee SC, Kim CS. Potential risk for intra-aortic balloon-induced obstruction to the celiac axis or the renal artery in the Asian population. Thorac Cardiovasc Surg. 2011 Mar;59(2):99-102. doi: 10.1055/s-0030-1250429. Epub 2011 Mar 7.

    PubMed 21384305
  • Igari T. The length of the aorta from the subclavian artery to the renal artery based on computed tomographic measurements in Japanese adults. J Artif Organs. 2006;9(4):267-70. doi: 10.1007/s10047-006-0346-z. Epub 2006 Dec 21.

    PubMed 17171407
  • Shin H, Yozu R, Sumida T, Kawada S. Acute ischemic hepatic failure resulting from intraaortic balloon pump malposition. Eur J Cardiothorac Surg. 2000 Apr;17(4):492-4. doi: 10.1016/s1010-7940(00)00366-3.

    PubMed 10773577
  • Swartz MT, Sakamoto T, Arai H, Reedy JE, Salenas L, Yuda T, Standeven JW, Pennington DG. Effects of intraaortic balloon position on renal artery blood flow. Ann Thorac Surg. 1992 Apr;53(4):604-10. doi: 10.1016/0003-4975(92)90318-x.

    PubMed 1554268
  • Rastan AJ, Tillmann E, Subramanian S, Lehmkuhl L, Funkat AK, Leontyev S, Doenst T, Walther T, Gutberlet M, Mohr FW. Visceral arterial compromise during intra-aortic balloon counterpulsation therapy. Circulation. 2010 Sep 14;122(11 Suppl):S92-9. doi: 10.1161/CIRCULATIONAHA.109.929810.

    PubMed 20837932
  • Weber KT, Janicki JS. Intraaortic balloon counterpulsation. A review of physiological principles, clinical results, and device safety. Ann Thorac Surg. 1974 Jun;17(6):602-36. doi: 10.1016/s0003-4975(10)65706-2. No abstract available.

    PubMed 4601521

Questions about this trial

What is this clinical trial studying?

An observational study of Intra-aortic Balloon Pump, run by Siriraj Hospital at 1 site in Thailand.

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 3 inclusion and 2 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: looking for participants now, as of the sponsor's last update on 27 Apr 2025. 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 Thailand. 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?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact James Tisyakorn, Doctor of Medicine (+66925549747, james51236@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Height (time frame: Day 1). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06947174, which also lists 11 linked publications.

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 27 Apr 2025.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in