Collateral Circulation

Collateral circulation

Abstract Abstract [en] Functional and clinical roles of collateral Coll circulation were studied by exercise Tl myocardial scintigraphy in 52 patients with myocardial infarction in comparison with CAG and LVG. Coll was classified into three types, good, poor and none.

LV collateral circulation motion was divided into 6 groups according to criteria of AHA. Exercise test was carried out using an upright bicycle ergometer by a continuous multistage protocol. Radionuclide was injected twice, immediately and one hour after exercise, and images were also taken twice and compared each other visually by plural observers.

Of 18 patients with good Coll, 9 showed persistent defect PD and remainder revealed redistribution RD. In patients with poor Coll and none, 20 out of 26 cases associated with dys- and akinetic LV wall motions than those with RD. And in group of PD, collateral circulation one with poor or no Coll did not show normal wall motion. In conclusion, good Coll is suggested to preserve blood flow at rest.

To estimate clinical significance of Coll and viability of heart muscle in each cases, it is nessesary to compare findings of scintigrams with CAG and LVG.]

Join. agree: Collateral circulation

INTRO TO MARKETING	Adult moral reasoning
Buy a research paper for college	Watch the fountainhead online
Collateral circulation	16

collateral circulation.

Collateral circulation - not

Methods and results: In total, 85 adults were included in the study 18 healthy volunteers; 67 patients who underwent transradial catheterisation. The perfusion of the thumb was assessed prior to and during complete radial artery compression using laser Doppler perfusion imaging LDPI and the Nexfin system. Conclusions: The Nexfin monitoring system is comparable with laser Doppler perfusion imaging in the quantification of the collateral perfusion in the hand. In patients, the Nexfin-derived collateral flow index measured at baseline is associated with clinical outcome at 30 days post transradial catheterisation. AB - Aims: This study aims primarily to assess the extent of the collateral circulation of the hand in a combined population of healthy individuals and patients who underwent transradial catheterisation, using both the Nexfin system and laser Doppler perfusion imaging.