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Intravascular lithotripsy to treat an ostial left main coronary artery stenosis due to porcelain aorta in a patient with congenital high-density lipoprotein deficiency.

ABSTRACT:

SUBMITTER: Cimci M

PROVIDER: S-EPMC7724382 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Infantile dilated cardiomyopathy due to congenital left main coronary ostial stenosis.

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Renal Artery Stenosis Treated Successfully With Shockwave Intravascular Lithotripsy.

Project description:Renal artery stenosis (RAS) typically involves varying degrees of calcification, and treatment can be fraught with risk and suboptimal results. Intravascular lithotripsy (IVL) uses shockwaves to fragment calcium to facilitate angioplasty. We present a case of severe bilateral RAS successfully treated with IVL and stenting after conventional methods had failed. (Level of Difficulty: Intermediate.).

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An echocardiographic clue for ostial left main coronary artery stenosis.

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Project description:BackgroundThe coral reef aorta (CRA) is a rare disease of extreme calcification in the juxtarenal aorta. These heavily calcified exophytic plaques grow into the lumen and can cause significant stenoses, leading to visceral ischaemia, renovascular hypertension, and claudication. Surgery or percutaneous intervention with stenting carries a high risk of complications and mortality.Case summaryA 67-year-old female had presented with severe hypertension and exercise limiting claudication for 18 months. On evaluation, she was found to have severe bilateral renal artery stenoses with juxtarenal CRA causing subtotal occlusion. Both renal arteries were stented. For CRA, we used intravascular lithotripsy (IVL) assisted plain balloon angioplasty to minimize possibilities of major dissection and perforation and avoided chimney stent-grafts required to protect visceral and renal arteries. We used a double-balloon technique using a 6 × 60 mm IVL Shockwave M5 catheter and a 9 × 30 mm simple peripheral balloon catheter, inflated simultaneously at the site of CRA as parallel, hugging balloons to have an effective delivery of IVL. Shockwaves were given in juxta/infrarenal aorta to have satisfactory dilatation without any complication. The gradient across aortic narrowing reduced from 80 to 4 mmHg. She had an uneventful recovery and has remained asymptomatic at 6-month follow-up.DiscussionWhen CRA is juxtarenal with no safe landing zones for stent-grafts, IVL may be a safe, less complex and effective alternative to the use of juxtarenal aortic stent-graft with multiple chimney or snorkel stent-grafts. This is the first report of a novel use of IVL to treat CRA.

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Lithotripsy and ultrasound: Useful armamentarium in the case of ostial calcified stenosis of the right coronary artery.

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Coexistence of left main and right coronary artery ostial stenosis: demographic and angiographic features.

Project description:This study was designed to evaluate ostial left main coronary artery (LMCA) stenosis and investigate concomitant stenotic lesions of LMCA and right coronary arteries (RCA) and their demographic and angiographic features. We evaluated 11,283 patients who underwent coronary angiography. Patients were placed into four groups according to having ostial or nonostial LMCA or RCA stenosis. Significant LMCA stenosis was observed in 242 (8.3%) of the patients, and only 68 (28.1%) of them had significant ostial LMCA stenosis. There was a significant correlation between ostial stenosis of LMCA and RCA (p = 0.03). The frequency of female gender was greater in ostial LMCA and ostial RCA stenosis groups compared with the other groups (p = 0.01). Ostial LMCA and RCA stenosis were related significantly. Both female predominance and coexistence of ostial LMCA and RCA stenosis might have suggest a different pathological ground for this disease.

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Project description: Not available

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The Coronary Intravascular Lithotripsy System.

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Treatment of heavily calcified coronary artery stenosis using 3.5 mm peripheral intravascular lithotripsy balloon: case series.

Project description:BackgroundPrevalence of coronary artery calcification is high among patients with advanced age, chronic kidney disease, and diabetes. Percutaneous coronary intervention of heavily calcified coronary artery remains a significant challenge for interventional cardiologists. Although there are several modalities available in treating calcified coronary arteries, lesion preparation of certain heavily calcified vessels remains inadequate prior to stent deployment and/or often associated with worse periprocedural adverse outcomes.Case summaryWe report feasibility and safety of 3.5 mm peripheral intravascular lithotripsy (IVL) for the treatment of severely calcified coronary stenosis in two patients after orbital atherectomy failed to debulk calcified plaque to enable stent deployment.DiscussionIntravascular lithotripsy has recently emerged as a therapeutic option in treating calcified peripheral artery disease. However, coronary IVL is currently available only in a few centres in the USA. Studies are ongoing in the safety and efficacy of this technology in treating coronaries.

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