Changes in Aortic Diameter During Laparoscopic Surgery

Abdominal Aortic Diameter During Laparoscopic Surgery Clinical Trial

Official title:

Ultrasonic Assessment of Changes in Aortic Diameter During Laparoscopic Surgery

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT01137500
• Other study ID #: RSCHanaes001
• Status: Withdrawn
• Start date: August 1, 2010
• Est. completion date: August 3, 2010

Study information

• Verified date: August 2018
• Source: Royal Surrey County Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Various haemodynamic changes are observed during laparoscopic surgery, relating to insufflation of CO2 & patient position. Cardiac output calculations using oesophageal doppler monitoring are based on the assumption that the aortic diameter is fixed. This study aims to measure the aortic diameter at preset times during surgery using ultrasound to discover if the diameter remains the same, and hence if the assumptions made by the oesophageal monitor are reliable. Assessing the aortic diameter involves a noninvasive ultrasound measurement taken in patients electively having laparoscopic procedures at the Royal Surrey County Hospital.

Description:

Purpose and design:This study aims to measure the aortic diameter at preset times during surgery using ultrasound to discover if the diameter remains the same, and hence if the assumptions made by the oesophageal monitor are reliable. Assessing the aortic diameter involves a noninvasive ultrasound measurement taken in patients electively having laparoscopic procedures at the Royal Surrey County Hospital.

Recruitment: Patients undergoing elective laparoscopic procedures at the Royal Surrey County Hospital. Recruitment done by Dr M Dickinson or Dr M Scott (COnsultant Anaesthetists). No therapeutic promises are to be made as this is purely an observational study.

Inclusion / exclusion: Patient refusal, Surgical refusal, Conversion to an open procedure.

Consent: Informed consent will be gained from each participant.

Risks, burdens and benefits: This is an observational study using a non invasive technique in patients undergoing elective surgery. There is very little in the way of risks, burdens and benefits to the patient.

Confidentiality: Caldicott principles will be adhered to.

Conflict of interest: None.

Use of tissue samples in future research: None.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Est. completion date: August 3, 2010
• Est. primary completion date: August 2, 2010
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• All adult patients undergoing elective laparoscopic surgery at the Royal Surrey County Hospital

Exclusion Criteria:

• Patient refusal

• Surgical refusal

• Conversion to an open procedure

Related Conditions & MeSH terms

• Abdominal Aortic Diameter During Laparoscopic Surgery

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Royal Surrey County Hospital