The Effect of Patient Position on the External Haller Index Value Among Patients With Pectus Excavatum

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04046835

Acronym

POSITION

Enrollment

Registered

2019-08-06

Start date

2021-01-31

Completion date

2021-04-30

Last updated

2020-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pectus Excavatum

Keywords

Three-dimensional optical surface scanning, Patient position

Brief summary

Pectus excavatum is the most common anterior chest wall deformity, affecting up to 1:400 of newborns. The current gold standard to quantify the extent of deformity is by calculating the Haller Index based on a Computed Tomography (CT)-scan. However, as such scans inescapably imply exposure to ionizing radiation, novel imaging techniques have been investigated. Three-dimensional optical surface scanning is a promising new technique to acquire the trunks' three-dimensional (3D) surface topography. Based on this 3D scan, one is able to calculate the external Haller Index that is known to highly correlate with the conventional gold standard Haller Index that is based on internal measures. Both the conventional and external Haller Index are known to be affected by the respiratory phase in which the scan is acquired, however, what is the effect of patient position on the external Haller Index, and if affected, how should one correct for this phenomenon? To investigate this, a retrospective single-centre pilot study will be conducted.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* Patients that received a three-dimensional optical surface scan to quantify their pectus deformity

Exclusion criteria

* None

Design outcomes

Primary

Measure	Time frame	Description
Patient position	5 months	The effect of patient position on the value of the external Haller Index, based on 3D scans.

Secondary

Measure	Time frame	Description
Manual versus automatic alignment of patient position	5 months	If there is a significant effect of patient position on the external Haller Index, the ideal correction method is investigated (manual alignment versus automatic, computer-based alignment)

Countries

Netherlands

Contacts

Primary ContactJean Daemen

j.daemen@zuyderland.nl+31884597777

Outcome results