一種短期體外循環支持系統能夠經由皮膚心臟導管手術，在30分鐘內提供心臟輔助支持功能。

TandemHeart經由皮膚跨隔膜心室輔助(PTVA)系統是一種左心室輔助設備(LVAD)，設計作為短期循環支持系統，不需要徹底的心肺通路手術。該系統由三個部分組成:TandemHeart泵，提供循環動力將氧合血液從左心房中抽吸出來，推進至全身動脈循環系統；TandemHeart套管組件，將泵通過2條經皮膚通路腹股溝穿刺點連接起來;TandemHeart控制器，為泵提供動力，為泵提供潤滑劑，自動系統監測需要引起注意的情況并發出警報。

一種近期投入使用的重量很輕節約空間的輔助控制器，能夠配備在床邊輸液架或者桌子上。該設備主要適用于交流電源(AC)，但是配備的電池儲備電源足夠使用1小時。TandemHeart PTVA系統是美國CardiacAssist公司(Pittsburgh, PA, USA)產品，已經獲得美國食品藥品管理(FDA)批準，在6小時之內短期應用。
 
The TandemHeart PTVA System
 
A short-term extracorporeal circulatory support system provides cardiac assistance through a percutaneous cardiac catheterization procedure in as little as 30 minutes.

The TandemHeart percutaneous transseptal ventricular assist (PTVA) system is a left ventricular assist device (LVAD) designed to be used as a short-term circulatory support system for procedures not requiring complete cardiopulmonary bypass. The system is comprised of three elements: The TandemHeart pump provides the circulating power to pull oxygenated blood from the left atrium and to return it to the systemic arterial circulation; the TandemHeart cannula set connects the pump to the body by way of two percutaneous access points in the patient's groin; and the TandemHeart controller provides operating power to the pump, a controlled flow of lubricant to the pump, and automatic system monitoring and alarms indicating conditions that require attention.

A recently introduced lightweight, space-saving escort controller is also available, which can be mounted at bedside, on an intravenous (IV) pole, or on a table top. It is intended primarily for alternating current (AC) power use, but has enough battery back-up power for an hour of operation. The TandemHeart PTVA system is a product of CardiacAssist (Pittsburgh, PA, USA), and has been approved by the U.S. Food and Drug Administration (FDA) for short-term use for up to six hours.