Angioscopy before and after percutaneous transluminal angioplasty

1994 ◽  
Vol 26 (4) ◽  
pp. 256-259
Author(s):  
F. W. Winkelbauer ◽  
T. Hölzenbein ◽  
M. E. Ammann ◽  
G. Kretschmer ◽  
J. Lammer
Keyword(s):  
Percutaneous Transluminal Angioplasty ◽  
Transluminal Angioplasty ◽  
Before And After ◽  
Percutaneous Transluminal

Hemodynamic Effect of Percutaneous Transluminal Angioplasty for Lower Limb Atherosclerosis

1987 ◽  
Vol 28 (6) ◽  
pp. 761-766 ◽  
Author(s):  
J. J. Jørgensen ◽  
E. Stranden ◽  
T. Gjølberg
Keyword(s):  
Flow Velocity ◽  
Percutaneous Transluminal Angioplasty ◽  
Transluminal Angioplasty ◽  
Arterial Flow ◽  
Functional Evaluation ◽  
Ankle Pressure ◽  
Before And After ◽  
Pulsed Wave Doppler ◽  
The Common ◽  
Percutaneous Transluminal

Measurements of ankle pressure index (API) and arterial flow velocity including calculation of pulsatility index (PI) from the common femoral and pedal arteries were performed in 89 limbs of 75 patients before and after percutaneous transluminal angioplasty (PTA) (63 iliac and 26 femoropopliteal). A pulsed wave Doppler ultrasound flowmeter was used. An increase of API at rest of at least 0.15 or the absence of pressure drop after exercise following PTA was used as criteria for a hemodynamically successful angioplasty. In patients with hemodynamically successful PTA of an iliac obstruction PI increased from 4.2 to 8.6 (p<0.001); 91 per cent of these patients improved clinically. When iliac angioplasty was hemodynamically unsuccessful, PI remained unchanged; 11 per cent of these patients improved clinically. All limbs with hemodynamically successful PTA of a femoropopliteal obstruction improved clinically and PI increased from 3.1 to 8.7 (p<0.001). After hemodynamically unsuccessful femoropopliteal PTA, PI remained unchanged though 25 per cent of these patients improved clinically. These results illustrate that measurement of arterial flow velocity with calculation of PI may be a useful supplement for the functional evaluation of the effect of PTA, since symptomatic response alone may be unreliable.

Die Bedeutung der Muskelclearance zur Verlaufskontrolle nach perkutaner transluminaler Angioplastie

1987 ◽  
Vol 26 (04) ◽  
pp. 187-190
Author(s):  
Fr.-J. Krause
Keyword(s):  
Blood Flow ◽  
Tibialis Anterior ◽  
Percutaneous Transluminal Angioplasty ◽  
Transluminal Angioplasty ◽  
Clinical Findings ◽  
Before And After ◽  
Percutaneous Transluminal ◽  
Angiographic Findings

Muscular clearance as the maximum blood flow in the M. tibialis anterior was determined with 133Xe in 78 patients before and after percutaneous transluminal angioplasty (PTA) of the femoralartery. The increase in maximum blood flow after successful PTA was 33.1 %, which is consistent with the results of other investigators. In contrast to the clinical findings (OAD state according to Fontaine) obtained before and after PTA, the muscle clearance worsened in 42.6% of the cases studied. In 85% of the patients, the angiographic findings (stenosing arteriosclerosis of the A. tibialis anterior) explained the cause of this observation; these findings should therefore be available before the muscle clearance is studied.

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