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Hemodynamic Monitoring During Abdominal Aortic Surgery

INTRAOPERATIVE HEMODYNAMIC MANAGEMENT IN ABDOMINAL AORTIC SURGERY GUIDED BY HYPOTENSION PREDICTION INDEX (HPI) - HEMAS Trial

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05478564
Acronym
HEMAS
Enrollment
63
Registered
2022-07-28
Start date
2022-07-26
Completion date
2023-07-31
Last updated
2025-03-13

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

Conditions

Hemodynamic Instability

Brief summary

This trial investigates the ability of our istitutional algorithm in maintaining a safe hemodynamics during abdominal aorta open surgery, in terms of limitation of intraoperative hypotension incidence

Detailed description

The present trial includes patients submitted to abdominal aorta open surgery. This type of procedure is very challenging for the hemodynamic management because of the operation per se (during which the surgeon clamp and unclamp the aorta with very significant hemodynamic variations) and because of the altered tone of the vessels due to the general vascular disease such a type of patients is suffering from. The aim of this study is to verify if the incidence of intraoperative hypotension in terms of severity, lasting and number of episodes, may be reduced by the application of a protocol of hemodynamic management. Primary endpoint: Global time spent in hypotension \<10%. Secondary Endpoints: 1. Time Weighted Average (TWA) of Area Under the Threshold \<0.4 mmHg 2. Incidence of hypotensive events/patient \< 8 (including the expected hypotensive events due to the aortic clamping and unclamping)

Interventions

OTHERIntraoperative fluids and vasoactive drugs management protocol

Limitation of hypotensive events during open surgery for abdominal aorta repair

Sponsors

Humanitas Clinical and Research Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Adults patients undergoing abdominal aorta open surgical repair

Exclusion criteria

* Emergent/urgent operation * Age \<18 years * Pregnancy * Intra-operative blood loss \> or = 3000ml

Design outcomes

Primary

MeasureTime frameDescription
Global time spent in hypotension <10%Intraoperative periodHypotension=mean arterial pressure \<65 mmHg for at least 1 minute

Secondary

MeasureTime frameDescription
Time Weighted Average (TWA) of Area Under the Threshold <0.4 mmHgIntraoperative periodThe severity of hypotension during the whole intraoperative surgery
Incidence of hypotensive events/patient < 8Intraoperative periodincluding the expected hypotensive events due to the aortic clamping and unclamping

Countries

Italy

Outcome results

None listed

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