Abstract
Platelet count, and plasma thromboxane B2 (TXB2) and circulating platelet aggregates (CPA) were determined in the coronary sinus (CS), aortic bulb (AO) and cubital vein (V) in 21 patients with stable angina and in 6 control subjects before and after atrial pacing (AP). TXB2 measurements were repeated before and after AP in 6 of the 21 angina patients after 15 days' sulphinpyrazone treatment. Platelet count and CPA ratio were similar in angina patients and controls at all three sampling sites and were unchanged at AP peak. In the controls, basal TXB2 values in CS, AO and V were not significantly different and were unchanged at AP peak. In the angina patients compared with the controls, basal TXB2 values in the AO, CS and V were not significantly different whereas the CS/AO TBX2 ratio was significantly higher; at AP-induced ischaemia, CS TXB2 was significantly increased and the CS/AO TXB2 ratio was increased. A weak but significant direct correlation was found between CS/AO TXB2 ratio and coronary score. Sulphinpyrazone treatment reduced CS TXB2 levels at rest and after AP, but not the ischaemic threshold at AP.
| Original language | English |
|---|---|
| Pages (from-to) | 857-859 |
| Number of pages | 3 |
| Journal | Thrombosis and Haemostasis |
| Volume | 50 |
| Issue number | 4 |
| Publication status | Published - 1983 |
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ASJC Scopus subject areas
- Hematology
Cite this
Transcoronary platelet thromboxane A2 formation without platelet trapping in patients with coronary stenosis - Effect of sulphinpyrazone treatment. / Cortellaro, M.; Boschetti, C.; Antoniazzi, V.; Moreo, G.; Repetto, S.; Verna, E.; Boscarini, M.; Limido, A.; Binaghi, G.; Polli, E. E.
In: Thrombosis and Haemostasis, Vol. 50, No. 4, 1983, p. 857-859.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transcoronary platelet thromboxane A2 formation without platelet trapping in patients with coronary stenosis - Effect of sulphinpyrazone treatment
AU - Cortellaro, M.
AU - Boschetti, C.
AU - Antoniazzi, V.
AU - Moreo, G.
AU - Repetto, S.
AU - Verna, E.
AU - Boscarini, M.
AU - Limido, A.
AU - Binaghi, G.
AU - Polli, E. E.
PY - 1983
Y1 - 1983
N2 - Platelet count, and plasma thromboxane B2 (TXB2) and circulating platelet aggregates (CPA) were determined in the coronary sinus (CS), aortic bulb (AO) and cubital vein (V) in 21 patients with stable angina and in 6 control subjects before and after atrial pacing (AP). TXB2 measurements were repeated before and after AP in 6 of the 21 angina patients after 15 days' sulphinpyrazone treatment. Platelet count and CPA ratio were similar in angina patients and controls at all three sampling sites and were unchanged at AP peak. In the controls, basal TXB2 values in CS, AO and V were not significantly different and were unchanged at AP peak. In the angina patients compared with the controls, basal TXB2 values in the AO, CS and V were not significantly different whereas the CS/AO TBX2 ratio was significantly higher; at AP-induced ischaemia, CS TXB2 was significantly increased and the CS/AO TXB2 ratio was increased. A weak but significant direct correlation was found between CS/AO TXB2 ratio and coronary score. Sulphinpyrazone treatment reduced CS TXB2 levels at rest and after AP, but not the ischaemic threshold at AP.
AB - Platelet count, and plasma thromboxane B2 (TXB2) and circulating platelet aggregates (CPA) were determined in the coronary sinus (CS), aortic bulb (AO) and cubital vein (V) in 21 patients with stable angina and in 6 control subjects before and after atrial pacing (AP). TXB2 measurements were repeated before and after AP in 6 of the 21 angina patients after 15 days' sulphinpyrazone treatment. Platelet count and CPA ratio were similar in angina patients and controls at all three sampling sites and were unchanged at AP peak. In the controls, basal TXB2 values in CS, AO and V were not significantly different and were unchanged at AP peak. In the angina patients compared with the controls, basal TXB2 values in the AO, CS and V were not significantly different whereas the CS/AO TBX2 ratio was significantly higher; at AP-induced ischaemia, CS TXB2 was significantly increased and the CS/AO TXB2 ratio was increased. A weak but significant direct correlation was found between CS/AO TXB2 ratio and coronary score. Sulphinpyrazone treatment reduced CS TXB2 levels at rest and after AP, but not the ischaemic threshold at AP.
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M3 - Article
C2 - 6665767
AN - SCOPUS:0021090768
VL - 50
SP - 857
EP - 859
JO - Thrombosis and Haemostasis
JF - Thrombosis and Haemostasis
SN - 0340-6245
IS - 4
ER -