Hydro-mechanical Defragmentation of Pulmonary Embolism

July 14, 2021 updated by: Ayman khairy Mohamed, Assiut University

Evaluation of Safety and Efficacy of Hydro-mechanical Defragmentation of High Risk Pulmonary Embolism With Contraindications to Thrombolytic Therapy

Evaluating the safety and outcomes of hydro-mechanical defragmentation of high risk pulmonary embolism with contraindication for thrombolytic therapy

Study Overview

Detailed Description

In high risk pulmonary embolism , the main aim of therapy is to rapidly recanalize the affected pulmonary arteries with thrombolysis or embolectomy; to decrease right ventricular afterload and reverse right ventricular failure and shock, prevent chronic thromboembolic pulmonary hypertension , and decrease the recurrence risk.

The first-line treatment in patients with acute high risk pulmonary embolism presenting with persistent hypotension and/or cardiogenic shock is intravenous thrombolytic therapy. However a significant proportion of patients may not be a candidate for Intravenous thrombolysis because of major contraindications. An alternative option in patients with absolute contraindications or has failed intravenous thrombolysis is surgical embolectomy , but the number of experienced tertiary care centers that can do emergency surgical embolectomy are limited.

Percutaneous catheter mechanical fragmentation of proximal pulmonary arterial clots followed by injection of 200 ml saline at high pressure using power injector can be used as an alternative to intravenous thrombolytic therapy and surgical embolectomy because of their ability to rapidly recanalize occluded pulmonary blood flow.

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Assiut, Egypt, 71515
        • Assiut University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with angiographically confirmed acute high risk pulmonary embolism with shock index >1.
  • Pulmonary arterial occlusion with >50% involvement of the central (main and/or lobar) pulmonary , and pulmonary hypertension (mean pulmonary artery pressure >25 mmHg)
  • Patients with high risk pulmonary embolism who cannot receive fibrinolysis
  • Patients with acute intermediate-high risk pulmonary embolism with adverse prognosis (new hemodynamic instability, worsening respiratory failure, severe RV (right ventricle) dysfunction, or major myocardial necrosis)

Exclusion Criteria:

  • Patients with echocardiographically confirmed right sided thrombi.
  • Patients with low-risk pulmonary embolism or intermediate-low risk acute pulmonary embolism with minor RV dysfunction, minor myocardial necrosis, and no clinical worsening
  • Anaphylactic reaction to contrast media.
  • Acute renal failure or severe chronic non-dialysis dependent kidney disease.
  • Uncooperative patient

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: hydro-mechanical pulmonary embolism fragmentation
Those patients will undergo catheter directed fragmentation followed by injection of 100 ml of heparinized saline via power injector
A(6)F multipurpose catheter will be advanced over a guide wire under fluoroscopic guidance and used to measure right heart and pulmonary artery pressures, then mechanical catheter fragmentation will be done using a pigtail catheter. The catheter will be quickly spun manually so as to fragment the central thrombus and establish initial flow into pulmonary artery , then 200 ml saline will be injected via power injector to aid fragmentation of thrombus
NO_INTERVENTION: thrombolytic treated arm
patients with high risk and intermediate high risk PE who received thrombolysis as only treatment modality

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
30-day mortality
Time Frame: 30 days
measure the estimates of deaths in the 30 days after pulmonary embolism diagnosis
30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in blood pressure
Time Frame: 24 hours
systolic and diastolic blood pressure will be measured at first admission and compared with measurements the following second, eighth, and 24th hours of the intervention
24 hours
oxygen saturation
Time Frame: 24 hours
oxygen saturation will be measured by arterial blood gases analysis at first admission and compared with measurements the following second, eighth, and 24th hours of the intervention
24 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

September 1, 2019

Primary Completion (ACTUAL)

November 1, 2020

Study Completion (ACTUAL)

January 30, 2021

Study Registration Dates

First Submitted

September 20, 2019

First Submitted That Met QC Criteria

September 20, 2019

First Posted (ACTUAL)

September 23, 2019

Study Record Updates

Last Update Posted (ACTUAL)

July 20, 2021

Last Update Submitted That Met QC Criteria

July 14, 2021

Last Verified

July 1, 2021

More Information

Terms related to this study

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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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