Study Results
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Basic Information
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COMPLETED
NA
200 participants
INTERVENTIONAL
2016-10-31
2018-03-31
Brief Summary
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Detailed Description
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The ideal position of UVC) tip to minimize complications is just outside the heart at the junction of inferior vena cava and right atrium. UVC related complications are mainly due to catheter malposition. Accurate prediction of insertion length of UVC as well as confirmation of the position after insertion by radiograph or with ultrasound is very important to avoid complications. UVC malposition with subsequent re-positioning exposes these fragile infants to unnecessary handling, further radiologic exposure and increasing risk of infection.
The commonly used formulas to estimate the depth of umbilical catheter include Dunn's shoulder to umbilical length graph and a birth weight based formula proposed by Shukla and Ferrara in 1986. In Calgary, the most commonly used method for estimation of UVC insertion length is the birth weight based formula (i.e. UVC insertion length = (3 x birth weight + 9)/2 +1). The success rate of achieving the optimum position of catheter tip using this formula ranges from 31-40%. A recent retrospective study reported the use of different surface markers for calculating UVC insertion depth. A distance from base of umbilicus to nipple distance (UN)-1 cm provided the best and most accurate insertion depth of UVC. This formula had accuracy rate of 84% compared with 57% accuracy rate with birth weight based formula.
The objectives of our study are:
1. To compare accuracy rate between UVC insertion length estimated by using two formula (i.e. umbilicus to the nipple distance in cm minus 1 (UN - 1) and Shukla's birth weight based formula (\[(3× birth weight (Kg) + 9)/2+1)\] in achieving optimum UVC tip position
2. To compare the accuracy rate of UVC tip position between two methods based on growth status of neonates
Methods:
This is a randomized clinical study. All infants who require UVC insertion as part of their routine care at anytime during their hospital admission are eligible for the study. Infants with hydrops fetalis, abdominal wall defects, congenital diaphragmatic hernia and/or major structural heart disease will be excluded from the study.
When a newborn baby needs UVC central line insertion, neonate will be randomized to one of the 2 formulas for estimation of the pre-insertion UVC depth. UVC will be inserted under sterile condition as per unit protocol. To verify the UVC tip position, a thoracoabdominal radiograph will be taken. In addition,the investigators will do a ultrasound of the the heart to assess the exact location of the catheter tips as soon as possible but within 6 hours of insertion.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
HEALTH_SERVICES_RESEARCH
DOUBLE
Study Groups
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UVC and surface measurement formula
UVC insertion depth = Umbilicus to nipple distance minus 1cm
UVC
UVC insertion depth calculated by umbilicus to nipple distance-1
Ultrasound
UVC and Birth weight based formula
UVC insertion depth=\[(3× birth weight (Kg) + 9)/2+1)\] cm
UVC
UVC insertion depth calculated by \[(3× birth weight (Kg) + 9)/2+1)\]
Ultrasound
Interventions
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UVC
UVC insertion depth calculated by \[(3× birth weight (Kg) + 9)/2+1)\]
UVC
UVC insertion depth calculated by umbilicus to nipple distance-1
Ultrasound
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
1 Minute
2 Weeks
ALL
No
Sponsors
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University of Calgary
OTHER
Responsible Party
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Amuchou Soraisham
Associate Professor of Pediatrics
Principal Investigators
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Amuchou S Soraisham, MD, DM,
Role: PRINCIPAL_INVESTIGATOR
University of Calgary
Locations
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Foothills Medical Center
Calgary, Alberta, Canada
Countries
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References
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Shukla H, Ferrara A. Rapid estimation of insertional length of umbilical catheters in newborns. Am J Dis Child. 1986 Aug;140(8):786-8. doi: 10.1001/archpedi.1986.02140220068034.
Gupta AO, Peesay MR, Ramasethu J. Simple measurements to place umbilical catheters using surface anatomy. J Perinatol. 2015 Jul;35(7):476-80. doi: 10.1038/jp.2014.239. Epub 2015 Jan 22.
Kieran EA, Laffan EE, O'Donnell CP. Estimating umbilical catheter insertion depth in newborns using weight or body measurement: a randomised trial. Arch Dis Child Fetal Neonatal Ed. 2016 Jan;101(1):F10-5. doi: 10.1136/archdischild-2014-307668. Epub 2015 Aug 11.
Harabor A, Soraisham A. Rates of intracardiac umbilical venous catheter placement in neonates. J Ultrasound Med. 2014 Sep;33(9):1557-61. doi: 10.7863/ultra.33.9.1557.
Michel F, Brevaut-Malaty V, Pasquali R, Thomachot L, Vialet R, Hassid S, Nicaise C, Martin C, Panuel M. Comparison of ultrasound and X-ray in determining the position of umbilical venous catheters. Resuscitation. 2012 Jun;83(6):705-9. doi: 10.1016/j.resuscitation.2011.11.026. Epub 2011 Dec 6.
Dunn PM. Localization of the umbilical catheter by post-mortem measurement. Arch Dis Child. 1966 Feb;41(215):69-75. doi: 10.1136/adc.41.215.69. No abstract available.
Sheta A, Kamaluddeen M, Soraisham AS. Umbilical venous catheter insertion depth estimation using birth weight versus surface measurement formula: a randomized controlled trial. J Perinatol. 2020 Apr;40(4):567-572. doi: 10.1038/s41372-019-0456-0. Epub 2019 Aug 5.
Other Identifiers
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16-1303
Identifier Type: -
Identifier Source: org_study_id
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