Conus Branch Occlusion: The Masquerading Widowmaker

Nguyen, Vy; Tam, Wai; Iskandar, Marc; Perez, Vianka; Chizner, Ryan; Alonso, Raul; Diaz, Miguel

doi:10.1016/s0735-1097(19)33160-2

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The RVOT area is a potential origin for ventricular arrhythmias [2]. The phase 1 of the action potential (AP) is mediated by a transient outward potassium current which is stronger in the ventricular epicardium than in the endocardium [15].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Malignant Arrhythmia in Acute Conus Artery Occlusion

Stanciulescu¹,

Câlmâc²,

Horodinschi³

2021

J Clin Stud Rev Rep

View full text Add to dashboard Cite

We present the case of a 74 y.o. woman with multiple cardiovascular risk factors, admitted for worsening angina over the past three weeks. On admission she had no significant electrocardiographic and echocardiographic changes and a negative Troponin test. Coronary angiography revealed single vessel disease: severe stenosis of the right coronary artery (RCA) ostium (difficult to assess visually), 50% mid-vessel and 60% distal segment. The left anterior descending artery and circumflex artery had non-significant stenoses. Fractional flow reserve technique (FFR) was used to evaluate the RCA ostial lesion which proved to be significant, therefore angioplasty with three drug-eluting stents was performed for all three lesions of the right coronary artery, starting from the ostium. Due to its location, minimal aortic protrusion of the first stent occluded a small ostial branch which proved to be the conus artery and the patient developed mild transient angina during the procedure, but with good outcome regarding the intracoronary flow. After the angioplasty the patient presented anterior leads ST-elevation and developed mild chest pain with an increase in cardiac enzymes (CK-MB peak 39 U/L). Later on, she had two episodes of ventricular fibrillation with rapid defibrillation to sinus rhythm, with no further events or echocardiographic changes and no recurrent angina. The patient was started on amiodarone to prevent ventricular arrhythmias and continued double antiplatelet therapy with aspirin and clopidogrel. She was discharged six days later. In conclusion, although the conus branch is a small artery, its acute occlusion can have significant life-threatening complications.

show abstract

Section: Discussionmentioning

confidence: 99%

“…It supplies the right ventricular outflow tract (RVOT), therefore its damaged blood flow is a potential cause for ventricular arrhythmias. Even if it is a small branch, its occlusion is associated with significant ST-elevation infarctions [2].…”

Section: Introductionmentioning

confidence: 99%

Malignant Arrhythmia in Acute Conus Artery Occlusion

Stanciulescu¹,

Câlmâc²,

Horodinschi³

2021

J Clin Stud Rev Rep

View full text Add to dashboard Cite

show abstract

“…The evaluation of the conduit is significant as its impediment is one of the expected entanglements of RCA stenting and can mirror foremost STEMI morphology on ECG. 13…”

Section: Coronary Artery Variantsmentioning

confidence: 99%

Anatomical Variants and Anomalies of Coronary Artery Tree as Seen in Slice Multidetector Computed Tomography (MDCT)

Kumar,

Prabhu,

Ronda

2024

Annals of SBV

View full text Add to dashboard Cite

cardiovascular diseases, especially coronary heart disease (CHD), are an epidemic in India. So, early diagnosis of coronary artery disease is necessary. There is an emerging need for the assessment of anatomical variants and anomalies of the coronary artery tree for early diagnosis of coronary artery disease. With rapid advancement of non-invasive imaging like computed tomography coronary angiography, the complex anatomy of the coronary tree is assessed. The most common type of dominant system was the right coronary dominance. The most commonly encountered variant was ramus intermedius branch. In majority, most patients with anomalies are asymptomatic and anomalies were an incidental finding on coronary angiography. Anomalous origin and course of the coronary artery were the commonly encountered of which most are benign; however, few of these anomalies were associated with sudden cardiac death (interarterial course). Other anomalies associated with sudden cardiac death included anomalous origin of the left coronary artery from the pulmonary artery, atresia of the left main stem and coronary fistulae. The aim of this article is to provide an overview of the various normal anatomy, variants, and anomalies with a brief about their clinical presentations.

show abstract

Conus Branch Occlusion: The Masquerading Widowmaker

Cited by 2 publications

References 0 publications

Malignant Arrhythmia in Acute Conus Artery Occlusion

Malignant Arrhythmia in Acute Conus Artery Occlusion

Anatomical Variants and Anomalies of Coronary Artery Tree as Seen in Slice Multidetector Computed Tomography (MDCT)

Contact Info

Product

Resources

About