Heavily calcified left-main coronary diseases (LMCA) remain a formidable challenge for percutaneous interventions (PCI). This study was to investigate the safety and efficacy of using rotational atherectomy (RA) in treating such lesions in actual practice.

Percutaneous transluminal coronary rotational atherectomy (PTCRA) debulks atherosclerotic plaque from coronary arteries using an abrasive burr. On rotation, the burr selectively removes hard tissue. PTCRA has been used both as an alternative to and in conjunction with balloon angioplasty to open up blocked coronary arteries.

1997年7月1日 · Coronary stenting reduces the morbidity of acute closure 1 and decreases angiographic restenosis when used in discrete lesions. 2 3 However, treatment of complex lesions, such as fibrocalcific lesions, with PTCA has had lower success rates and higher rates of acute complications and clinical and angiographic restenosis compared with PTCA ...

2022年4月28日 · With growing experience, technical improvements and use of newer generation drug-eluting stents (DES), recent data showed satisfactory acute and long-term results after rotational atherectomy (RA) in calcified coronary lesions.

1998年11月1日 · This study evaluated the clinical safety and long-term results of rotational atherectomy (RA) followed by low-pressure balloon dilatation (percutaneous transluminal coronary angioplasty [PTCA]) for the treatment of in-stent restenosis (ISR).

有研究证实，切割球囊较PTCA 、Rota治疗支架内再狭窄的效果好，再次发生再狭窄的机会减少，尤以局限性支架内再狭窄效果显著。 尽管急性期造影结果与其他器械相似， 但病变的形态却显著地不同，切割球囊对血管壁的损伤小。

2002年2月5日 · Mean gain in diameter stenosis was 25% and 17% (P=0.002), resulting in restenosis (≥50%) rates of 51% (PTCA) and 65% (ROTA) (P=0.039). By intravascular ultrasound, the major difference was the missing stent over-expansion during PTCA after ROTA.

After RA of mid and distal RCA/RPL, PTCA and two DES were placed in mid RCA (Xience 4/23) and dRCA/RPL (Xience 2.5/38) with an excellent result. In complex calcified tortuous lesion intervention, an excellent guide support is paramount.

Push the Rotawire into the rear of the ROTAPROTM Rotablator Advancer while simultaneously retracting the sheath through the hemostasis valve. removal of the burr, depress the button on the Dynaglide Foot Pedal to reactivate high-speed rotation. for another burr size if needed or proceed to complete PCI.

2023年12月28日 · 首都医科大学附属北京安贞医院心内科 宋现涛、张明多教授团队 经综合研判，采用RotaTripsy Plus（旋磨+IVL+特殊球囊）策略，成功处理弥漫、重度钙化病例。 主诉： 患者男性，58岁，主诉“发作性胸痛2个月”。 现病史： 患者于2个月前无明显诱因出现胸痛，症状不典型，外院冠脉造影检查示：LAD弥漫性重度钙化病变，最重狭窄90%，给予阿司匹林、替格瑞洛、他汀等药物治疗，治疗后症状明显缓解，此后长期规律口服冠心病二级预防药物。 既往史： 2型 …