CT Features of Interrupted Inferior Vena Cava With Azygous Continuation

CT Features of Interrupted Inferior Vena Cava With Azygous Continuation : a Retrospective Study

Inferior vena cava (IVC) is the largest vein is the body, draining blood from the abdomen, pelvis and lower extremities. IVC anomalies can be congenital or acquired.

The origins of these anomalies are not entirely clear, and their incidence is uncertain.

Imaging plays a pivotal role in diagnosis to prevent misinterpretation. CT scan is a quick, available, and suitable imaging modality in emergency setting.

The aim of this retrospective monocentric study was of describe CT features of interrupted suprarenal inferior vena cava with azygous continuation.

Study Overview

• Status: Recruiting
• Conditions: Anatomical Variant of the Inferior Vena Cava
• Intervention / Treatment: Other: Describe the anatomy of the IVC in the case of an anatomical variant

• Study Type: Observational
• Enrollment (Estimated): 10

Contacts and Locations

• Study Contact: Name: Rémi GRANGE, MD; Phone Number: +33 (0)477828963; Email: remi.grange@chu-st-etienne.fr
• Study Contact Backup: Name: Sylvain Grange, MD; Phone Number: +33 (0)477829066; Email: grangesylvain@hotmail.fr

Study Locations

• France
  • Saint-Priest-en-Jarez, France, 42270
    • Recruiting
    • CHU de Saint-Etienne
    • Sub-Investigator: Rémi Grange, MD
    • Principal Investigator: Sylvain Grange, MD
    • Contact: Sylvain Grange, MD; Phone Number: +33 (0)477829066; Email: grangesylvain@hotmail.fr

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Patients with interrupted IVC with azygous continuation on CT scan

Description

Inclusion Criteria:

• All patients with interrupted IVC with azygous continuation on CT scan were included in this study.

Exclusion Criteria:

• Patients under 18 years of age
• Patients no available CT scan.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Included patients; All patients with interrupted IVC with azygous continuation on CT scan.	Other: Describe the anatomy of the IVC in the case of an anatomical variant; Evaluated technique by collecting data from the medical record.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Describe CT features of interrupted suprarenal inferior vena cava with azygous continuation	The number of infrarenal inferior vena cava was recorded for each patient.	Day : 1

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Describe CT features of interrupted suprarenal inferior vena cava with azygous continuation	The type of drainage of the left renal vein was recorded for each patient.	Day : 1
Describe association with polysplenic syndrome	Measurement of splenic laterality	Day : 1
Describe association with polysplenic syndrome	Measurement of stomach laterality	Day : 1
Describe association with polysplenic syndrome	Measurement of liver morphology	Day : 1
Describe association with polysplenic syndrome	Measurement of the preduodenal portal vein	Day : 1
Describe association with polysplenic syndrome	Measurement of pancreatic and intestinal rotation malformations	Day : 1
Describe association with polysplenic syndrome	Measurement of cardiopulmonary malformations	Day : 1
Describe circumstances of discovering the interrupted IVC	The circumstances of discovering the interrupted IVC were also documented from clinical records.	Day : 1
Describe circumstances of discovering the interrupted IVC	An history of thrombotic events was also documented from clinical records.	Day : 1

Collaborators and Investigators

• Sponsor: Centre Hospitalier Universitaire de Saint Etienne
• Investigators: Principal Investigator: Sylvain GRANGE, MD, CHU de Saint-Etienne

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2024
• Primary Completion (Estimated): March 31, 2024
• Study Completion (Estimated): March 31, 2024

Study Registration Dates

• First Submitted: March 4, 2024
• First Submitted That Met QC Criteria: March 8, 2024
• First Posted (Actual): March 15, 2024

Study Record Updates

• Last Update Posted (Actual): March 15, 2024
• Last Update Submitted That Met QC Criteria: March 8, 2024
• Last Verified: February 1, 2024

More Information

Terms related to this study

• Keywords: Polysplenia; CT scan; Interrupted vena cava; Azygous continuation
• Other Study ID Numbers: IRBN052024/CHUSTE

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No