Estimated Blood Loss: Novel Model for Estimating Surgical Blood Loss.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03249038

Enrollment

100

Registered

2017-08-15

Start date

2017-01-01

Completion date

2017-09-01

Last updated

2024-10-29

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

Conditions

Blood Loss, Blood Loss, Postoperative, Blood Loss, Surgical

Brief summary

Estimated blood loss is an important parameter recognized as a standard practice in anesthesiology and others medical specialties, with relevant clinical and research applications. Currently is no model capable of accurately estimate blood loss. The purpose of this study is to evaluate the accuracy of a novel model.

Interventions

OTHERMeasurement of external blood loss

DIAGNOSTIC_TESTSerum Hemoglobin concentration

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 100 Years

Healthy volunteers

Inclusion criteria

* Patients scheduled for elective urologic laparoscopy surgery.

Exclusion criteria

* Patient with suspected or confirmed heart failure, severe hypertension, hepatic cirrhosis, chronic kidney disease on dialysis, coagulopathy, as well as patient receiving diuretics, anticoagulant or antiplatelet agents. * Cases in which surgical gauzes were used, including conversion to open surgical technique. - Patients who have received transfusions of RBCs during the perioperative period. * Patients who have showed postoperative bleeding, defined by an amount greater than 50 ml in surgical drains, or any other type of blood loss.

Design outcomes

Primary

Measure	Time frame
Hemoglobin mass lost	Intraoperative
Postoperative serum hemoglobin concentration	48 hours

Outcome results

None listed

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