OBJECTIVE: To determine the mid-term effects of cutting balloon angioplasty (CBA) on in-stent restenosis. METHODS: A total of 69 patients with in-stent restenosis were divided into 2 groups randomly: cutting balloon a...OBJECTIVE: To determine the mid-term effects of cutting balloon angioplasty (CBA) on in-stent restenosis. METHODS: A total of 69 patients with in-stent restenosis were divided into 2 groups randomly: cutting balloon angioplasty and plain old balloon angioplasty. The mechanisms of restenosis and dilation results were determined by quantitative coronary angiography and intravascular ultrasound. Follow-up was performed. RESULTS: The procedural success rate was 100% without death and acute closure. One patient experienced dissection at the distal end of the stent and needed another stent. The mean follow-up period was 6.7 +/- 2.3 months. The final re-restenosis rate was 15% and 18% at 3 months and 6 months respectively, markedly lower than after plain old balloon angioplasty (38% and 43%). Acute gain by intravascular ultrasound (IVUS) was 1.72 +/- 0.52 mm after cutting balloon angioplasty, higher than 1.15 +/- 0.54 mm after plain old balloon angioplasty. The lumen diameter late loss in the cutting balloon group was 0.26 +/- 0.05 mm and 0.38 +/- 0.06 mm at 3 months and 6 months respectively, significantly lower than for those in conventional balloon group (0.78 +/- 0.19 mm and 0.89 +/- 0.16 mm, respectively, P展开更多
OBJECTIVE: To investigate changes in the expression of sarcoplamic reticular Ca(2+)-ATPase (SERCA) and IP(3)-I receptors (IP(3)R(1)) mRNA in patients with atrial fibrillation. METHODS: Thirty-eight patients with mitra...OBJECTIVE: To investigate changes in the expression of sarcoplamic reticular Ca(2+)-ATPase (SERCA) and IP(3)-I receptors (IP(3)R(1)) mRNA in patients with atrial fibrillation. METHODS: Thirty-eight patients with mitral stenosis undergoing open heart surgery were studied. 100 mg of atrial tissue was obtained during surgery from the right appendage and the right atrium. The amount of messenger ribonucleic acid (mRNA) amount of SERCA and IP(3)R(1) was measured by reverse transcription-polymerase chain reaction (RT-PCR) and normalized to the mRNA levels of glyceraldehyde 3-phosphate dehydrogenase (GAPDH). RESULTS: Levels of mRNA expression of SERCA in patients with AF, as compared with subjects in sinus rhythm, was lower and that of IP(3)R(1) was higher. The longer AF was sustained, the higher the levels of mRNA. There was no significant difference between right atrial free wall and right appendage. CONCLUSIONS: The expression changes of SERCA and IP3R mRNA may correlate with the initiation or maintenance of AF.展开更多
Objective To investigate changes in the expression of sarcoplamic reticular Ca 2+ ATPase (SERCA) and IP 3 I receptors (IP 3R 1) mRNA in patients with atrial fibrillation Methods Thirty eight patients wi...Objective To investigate changes in the expression of sarcoplamic reticular Ca 2+ ATPase (SERCA) and IP 3 I receptors (IP 3R 1) mRNA in patients with atrial fibrillation Methods Thirty eight patients with mitral stenosis undergoing open heart surgery were studied 100 mg of atrial tissue was obtained during surgery from the right appendage and the right atrium The amount of messenger ribonucleic acid (mRNA) amount of SERCA and IP 3R 1 was measured by reverse transcription polymerase chain reaction (RT PCR) and normalized to the mRNA levels of glyceraldehyde 3 phosphate dehydrogenase (GAPDH) Results Levels of mRNA expression of SERCA in patients with AF, as compared with subjects in sinus rhythm, was lower and that of IP 3R 1 was higher The longer AF was sustained, the higher the levels of mRNA There was no significant difference between right atrial free wall and right appendage Conclusions The expression changes of SERCA and IP3R mRNA may correlate with the initiation or maintenance of AF展开更多
文摘OBJECTIVE: To determine the mid-term effects of cutting balloon angioplasty (CBA) on in-stent restenosis. METHODS: A total of 69 patients with in-stent restenosis were divided into 2 groups randomly: cutting balloon angioplasty and plain old balloon angioplasty. The mechanisms of restenosis and dilation results were determined by quantitative coronary angiography and intravascular ultrasound. Follow-up was performed. RESULTS: The procedural success rate was 100% without death and acute closure. One patient experienced dissection at the distal end of the stent and needed another stent. The mean follow-up period was 6.7 +/- 2.3 months. The final re-restenosis rate was 15% and 18% at 3 months and 6 months respectively, markedly lower than after plain old balloon angioplasty (38% and 43%). Acute gain by intravascular ultrasound (IVUS) was 1.72 +/- 0.52 mm after cutting balloon angioplasty, higher than 1.15 +/- 0.54 mm after plain old balloon angioplasty. The lumen diameter late loss in the cutting balloon group was 0.26 +/- 0.05 mm and 0.38 +/- 0.06 mm at 3 months and 6 months respectively, significantly lower than for those in conventional balloon group (0.78 +/- 0.19 mm and 0.89 +/- 0.16 mm, respectively, P
文摘OBJECTIVE: To investigate changes in the expression of sarcoplamic reticular Ca(2+)-ATPase (SERCA) and IP(3)-I receptors (IP(3)R(1)) mRNA in patients with atrial fibrillation. METHODS: Thirty-eight patients with mitral stenosis undergoing open heart surgery were studied. 100 mg of atrial tissue was obtained during surgery from the right appendage and the right atrium. The amount of messenger ribonucleic acid (mRNA) amount of SERCA and IP(3)R(1) was measured by reverse transcription-polymerase chain reaction (RT-PCR) and normalized to the mRNA levels of glyceraldehyde 3-phosphate dehydrogenase (GAPDH). RESULTS: Levels of mRNA expression of SERCA in patients with AF, as compared with subjects in sinus rhythm, was lower and that of IP(3)R(1) was higher. The longer AF was sustained, the higher the levels of mRNA. There was no significant difference between right atrial free wall and right appendage. CONCLUSIONS: The expression changes of SERCA and IP3R mRNA may correlate with the initiation or maintenance of AF.
文摘Objective To investigate changes in the expression of sarcoplamic reticular Ca 2+ ATPase (SERCA) and IP 3 I receptors (IP 3R 1) mRNA in patients with atrial fibrillation Methods Thirty eight patients with mitral stenosis undergoing open heart surgery were studied 100 mg of atrial tissue was obtained during surgery from the right appendage and the right atrium The amount of messenger ribonucleic acid (mRNA) amount of SERCA and IP 3R 1 was measured by reverse transcription polymerase chain reaction (RT PCR) and normalized to the mRNA levels of glyceraldehyde 3 phosphate dehydrogenase (GAPDH) Results Levels of mRNA expression of SERCA in patients with AF, as compared with subjects in sinus rhythm, was lower and that of IP 3R 1 was higher The longer AF was sustained, the higher the levels of mRNA There was no significant difference between right atrial free wall and right appendage Conclusions The expression changes of SERCA and IP3R mRNA may correlate with the initiation or maintenance of AF