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Publication Database Search

Explore our collection of peer-reviewed studies and research articles showcasing the real-world application of our technology.

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Publication Summaries
Database
Medistim Driven
Medistim Supported
Kieser 2010
3-year post-op follow-up PI< 5 connected to less risk of MACE and death
Kim 2019
Less re-interventions with TTFM than without TTFM
Quan 2022
Less perioperative MI with TTFM than without TTFM
Laali 2022
Add 3 min and reduce MACE by 50%
Circulation 2021
10 consensus statements recommending the use of TTFM in every CABG procedure
Meyer 2019
Flow >170mL/min predicts successful maturation of AVF.
Miyake 2019
Optimal flow reduces the risk for early graft occlusion after Peripheral Bypass.
Troisi 2025
Arterial flow > 310 mL/min reduces risk of delayed graft function after kidney transplantation.
Knappich 2020
CIDAC: HFUS enables more correct detection of higher-grade defects than angiography during CEA.

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2021 ACC/AHA/SCAI Guideline for Coronary Artery Revascularization

Lawton J et al.
2022
Guidelines
Cardiac
2021 ACC/AHA/SCAI Guideline for Coronary Artery Revascularization

A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Read more…

Authors
Lawton J, Tamis-Holland J, Bangalore S, Bates E, Beckie T, Bischoff J, Bittl J, Cohen M, DiMaio J M, Don C, Fremes S, Gaudino M, Goldberger Z, Grant M, Jaswal J, Kurlansky P, Mehran R, Metkus T, Nnacheta L, Rao S, Sellke F, Sharma G, Yong C, & Zwischenberger B

2015 ASE and EACVI Guidance on imaging of Thoracic Aorta

Goldstein S et al.
2015
Guidelines
Cardiac
2015 ASE and EACVI Guidance on imaging of Thoracic Aorta

The American Society of Echocardiography (ASE) and the European Association of Cardiovascular Imaging (EACVI) recommend epiaortic ultrasound to reduce risk for  perioperative stroke. Read more…

Authors

2022 NICE - National Institute for Health and Care Excellence

2022
Guidelines
Cardiac
2022 NICE - National Institute for Health and Care Excellence

The MiraQ system is recommended as a cost saving option for assessing graft flow during coronary artery bypass graft surgery. Read more…

Authors

2018 ESC/EACTS Guidelines on myocardial revascularization

Neumann FJ et al.
2019
Guidelines
Cardiac
2018 ESC/EACTS Guidelines on myocardial revascularization

The Task Force on Myocardial Revascularization of the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS) recommend graft assessment by TTFM and epiaortic HFUS prior to manipulation. Read more…

Authors
Neumann FJ, Sousa-Uva M, Ahlsson A, Alfonso F, Banning A, Benedetto U, Byrne R, Collet JP, Falk V, Head S, Juni P, Kastrati A, Koller A, Kristensen S, Niebauer J, Richter D, Seferovic P, Sibbing D, Stefanini G, Windecker S, Yadav R, Zembala M, & ESC Scientific Document Group

Pulsatility index variations using two different transit-time flowmeters in coronary artery bypass surgery

Nordgaard HB et al
2010
Published Articles
Cardiac
Pulsatility index variations using two different transit-time flowmeters in coronary artery bypass surgery

Objective: Transit-time flow measurement is widely accepted as an intra-operative assessment in coronary artery bypass grafting (CABG).However, the two most commonly applied flowmeters, manufactured by MediStim ASA and Transonic Inc., have different default filter settings of 20 and 10 Hz, respectively. This may cause different flow measurements, which will influence the reported results. The aim was to compare pulsatility index (PI) values recorded by the MediStim and Transonic flowmeters in two different clinical settings: (1) analysis of the flow patterns recorded simultaneously by both flowmeters in the same CABGs; and (2) evaluation of flow patterns under different levels of filter settings in the same grafts.

Methods: Graft flow and PI were measured using the two different flowmeters simultaneously in 19 bypass grafts. Finally, eight grafts were assessed under different digital filter settings at 5, 10, 20, 30, 50 and 100 Hz.

Results: Read more...

Authors
Nordgaard HB, Vitale N, Astudillo R, Renzulli A, Romundstad P & Haaverstad R
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Publication Summaries

Consice insights from key clinical studies - empowering surgeons with evidence that drivers better outcomes
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Medistim Driven Studies

Medistim Supported Studies

CIDAC

Prospective Comparison of Duplex Ultrasound and Angiography for Intra-operative Completion Studies after Carotid Endarterectomy (CIDAC)

Kidney transplant

Prospective assessment of intraoperative renal perfusion with Transit time flow measurments (TTFM) in deceased and living donor kidney transplantation.

SMARTFLOW

Time to Assess the Role of Quality Control in CABG: The SMARTFLOW Trial Program

ROMA women

ROMA: Women: Innovative Approaches for the First Cardiac Surgery Trial in Women

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