Effects of Different Modes of Ventilation and Head Position on Size of Vena Jugular Interna

Comparing the Size of the Vena Jugular Interna Under Spontaneous Ventilation and Different Mechanical Ventilation Modes When Head is in Neutral and 30 Degree Lateral Position:Clinical Trial

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01790334

Acronym

USG-IJV

Enrollment

Registered

2013-02-13

Start date

2013-02-28

Completion date

2013-03-31

Last updated

2013-08-29

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

Conditions

Central Line Complication

Brief summary

It is widely known that positive mechanical ventilation increases the positive intrathoracic pressure which affects the pressure in the RIJV, resulting in an increase of the CSA. Currently, there appears to be a lack of studies in the literature that assess the effects of different modes of ventilation of this increase. The aim of our study is to evaluate the changes in cross-sectional area and diameters of RIJV under two different mechanical ventilation modes (PCV and VCV) and spontaneous ventilation in head neutral and 30 degree rotated lateral position by using ultrasonography and to determine the ventilation mode that is most suitable for catheterization.

Interventions

OTHERUltrasonography

Study design

Observational model

CASE_CROSSOVER

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Inclusion criteria

* 30 ASA status I-II patients between 18-80 years old undergoing elective abdominal surgery

Exclusion criteria

* Patients with a history of congestive heart failure, pulmonary hypertension, chronic renal failure, diabetes mellitus, rheumatological diseases, neck surgery, valvular disease, obesity or RIJV catheterization will be excluded from the study

Design outcomes

Primary

Measure	Time frame
comparing the size of right internal jugular vein in different mechanical ventilation modes	1 month

Secondary

Measure	Time frame
effect of different head positions on the right internal jugular vein size	1 month

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026