An atrial hydraulic shunt in a total artificial heart. A balance mechanism for the bronchial shunt.

Abstract Text

An implantable TAH must be able to maintain physiologic atrial pressures over a range of left side shunt flows, which in humans can range up to 5% of the total cardiac output (CO). The authors describe the characteristics of an atrial hydraulic shunt in an electrohydraulic TAH. A small (10 cc stroke) chamber placed in line between the left atrial cuff and the inflow valve is shunted to the right hydraulic chamber. High left atrial pressure increases the volume displaced by this chamber; this concurrently reduces the right chamber stroke volume and flow relative to the left side. For left atrial pressures (LAP) between 0 and 15 mmHg, CO increased from approximately 3 to > 9 L/min (Starling-like behavior). This was attainable with bronchial flow settings between 0.2 to 0.7 L/min, satisfying physiologic needs. Left atrial pressure and RAP (right atrial pressure) tracked each other. The mean difference, LAP-RAP, remained within 5 mmHg at low filling pressures and approached 0 mmHg difference at high filling pressures. The results showed that the atrial hydraulic shunt method can adequately compensate for and manage physiologic left-right flow differences.

Authors :-, , , , ,


Mesh Headings :-


Chemical List :-, ,



2016-09-02 14:22:05

Click download button below to get the free An atrial hydraulic shunt in a total artificial heart. A balance mechanism for the bronchial shunt. link to pdf of abstract on your facebook profile.

Download Server - Asia Download Server - America Download Server - Europe Download Server - Australia
Citation:- Kung RT, Yu RT, Ochs RT, Parnis RT, Frazier RT, .An atrial hydraulic shunt in a total artificial heart. A balance mechanism for the bronchial shunt. ASAIO journal (American Society for Artificial Internal Organs : 1992) -;39()M213-7 DOI:



Details of Journal

Journal Title - ASAIO journal (American Society for Artificial Internal Organs : 1992)

ISSN - 1058-2916

Volume - 39

Issue - 3

Publish date - -

Language - eng

Country - UNITED STATES


SHARE PLEASE -
Read More Similar Articles

The Sternotomy Hemopump. A second generation intraarterial ventricular assist device.

Wampler RK, Aboul-Hosn RK, Cleary RK, Saunders RK, .The Sternotomy Hemopump. A second generation intraarterial ventricular assist device. ASAIO journal (American Society for Artificial Internal Organs.......

Read More

Ahn JM, Kang JM, Kim JM, Min JM, .In vivo performance evaluation of a transcutaneous energy and information transmission system for the total artificial heart. ASAIO journal (American Society for Arti.......


A disposable heart-lung machine. Results of animal testing.

Phillips SJ, Thornton SJ, Barker SJ, Zeff SJ, Balentine SJ, .A disposable heart-lung machine. Results of animal testing. ASAIO journal (American Society for Artificial Internal Organs : 1992) -;39()M2.......

Read More

Selective cerebral perfusion in patients with aortic aneurysms involving the aortic arch.

Shinpo H, Kondo H, Shimono H, Tnanaka H, Yada H, Yuasa H, .Selective cerebral perfusion in patients with aortic aneurysms involving the aortic arch. ASAIO journal (American Society for Artificial Inte.......

Read More

A novel electrochemical heparin sensor.

Yang VC, Ma VC, Liu VC, Brown VC, Meyerhoff VC, .A novel electrochemical heparin sensor. ASAIO journal (American Society for Artificial Internal Organs : 1992) -;39()M195-201 DOI:.......

Read More

Can protamine be used during perfusion with heparin surface coated equipment?

von Segesser LK, Gyurech LK, Schilling LK, Marquardt LK, Turina LK, .Can protamine be used during perfusion with heparin surface coated equipment? ASAIO journal (American Society for Artificial Intern.......

Read More

Tranexamic acid reduces blood loss after cardiopulmonary bypass.

Nakashima A, Matsuzaki A, Fukumura A, Hisahara A, Kanegae A, Fukae A, .Tranexamic acid reduces blood loss after cardiopulmonary bypass. ASAIO journal (American Society for Artificial Internal Organs :.......

Read More

In vivo testing of a completely implanted total artificial heart system.

Snyder AJ, Rosenberg AJ, Weiss AJ, Ford AJ, Nazarian AJ, Hicks AJ, .In vivo testing of a completely implanted total artificial heart system. ASAIO journal (American Society for Artificial Internal Org.......

Read More

The Baylor-ABI electromechanical total artificial heart. Accelerated endurance testing.

Orime Y, Takatani Y, Ohara Y, Tasai Y, Naito Y, Mizuguchi Y, .The Baylor-ABI electromechanical total artificial heart. Accelerated endurance testing. ASAIO journal (American Society for Artificial Int.......

Read More