Giant Aneurysm of Right Coronary Artery Fistula Into Left Ventricle Coexisting With Noncompaction of Left Ventricular Myocardium

2014 ◽  
Vol 98 (4) ◽  
pp. e85-e86 ◽  
Author(s):  
Bo Jiang ◽  
Ya Yang ◽  
Fang Li ◽  
Ning Ma ◽  
Shan Wu ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Left Ventricle ◽  
Right Coronary Artery ◽  
Giant Aneurysm ◽  
Coronary Artery Fistula ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Left Ventricular Myocardium

scholarly journals Mysterious window: A right coronary artery-left ventricular fistula diagnosed by multiple imaging methods

2021 ◽  
Author(s):  
Yi Yu ◽  
Qian Wang ◽  
Cheng Li ◽  
Jian Sun ◽  
Wei Li ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Left Ventricle ◽  
Right Coronary Artery ◽  
Giant Aneurysm ◽  
Left Ventricular ◽  
Chest Tightness ◽  
Coronary Artery Angiography ◽  
Multiple Imaging ◽  
Dual Source ◽  
Proximal Right Coronary Artery

Prevalence of primary coronary cameral fistula (CCF) is extremely rare, especially for CCF with the drainage site into the left ventricle. We describe a 45-year-old patient with chest tightness in whom a giant aneurysm associated with proximal right coronary artery (RCA), and the distal end of RCA terminated into the left ventricle through a fistula was discovered by echocardiography. Dual-source computer tomography revealed the CCF-related giant RCA aneurysm. The drainage site and coexistent abnormality could not be visualized well by coronary artery angiography because of the severely diluted contrast medium into the aneurysm. Finally, the patient received surgical treatment and is asymptomatic now.

scholarly journals Successful Surgical Treatment of Postinfarction Rupture of Left Ventricular Myocardium

2020 ◽  
Vol 9 (1) ◽  
pp. 140-147
Author(s):  
M. K. Mazanov ◽  
N. I. Kharitonova ◽  
A. A. Baranov ◽  
S. Yu. Kambarov ◽  
N. M. Bikbova ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricle ◽  
Surgical Intervention ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Left Ventricular Myocardium ◽  
Free Wall ◽  
Fatal Complication ◽  
Widespread Availability ◽  
Complications Of Myocardial Infarction

ABSTRACT. The rupture of the left ventricle free wall is one of the most dangerous complications of myocardial infarction. Due to the widespread availability of echocardiography method, the detection of this fatal complication and the number of lives saved after surgery grew. The survival of patients depends on early diagnosis, stabilization of the patient’s condition, promptness and tactics of surgical intervention. We report a case of successful closure of a rupture of the left ventricle free wall on the 15th day after myocardial infarction.

scholarly journals Left Main PCI—Current Evidence, Techniques, and Triumph

2020 ◽  
Vol 1 (2) ◽  
pp. 86-93
Author(s):  
Pramod Kumar Kuchulakanti
Keyword(s):  
Coronary Artery ◽  
Artery Bypass ◽  
Coronary Intervention ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Current Evidence ◽  
Left Ventricular Myocardium ◽  
Left Main ◽  
Fractional Flow ◽  
Flow Reserve

The left main coronary artery (LMCA) supplies majority of the left ventricular myocardium and atherosclerotic obstruction is associated with significant myocardial jeopardy. Coronary artery bypass surgery (CABG) has been the gold standard for LMCA disease in the past. The LMCA has special characteristics anatomically, poses different challenges with regard to percutaneous coronary intervention (PCI), and is often associated with multivessel disease. However, advancements in technology have established PCI to be a standard, safe, and reasonable alternative to CABG with comparable outcomes. Contemporary PCI of LMCA disease includes proper selection of the patients and correct technique, and is aided by intravascular ultrasound, optical coherence tomography, and physiological assessment with fractional flow reserve. In this review article, we discuss the anatomy, plaque characteristics of LMCA, current evidence from registries and randomized trials comparing with CABG, technical aspects of stent implantation, adjuvant technologies, mechanical circulatory supports, and triumph of PCI.

An aneurysmal right coronary artery fistula draining into the left ventricle

2017 ◽  
Vol 27 (6) ◽  
pp. 1214-1215
Author(s):  
Dongxu Li ◽  
Yabo Wang ◽  
Qi An
Keyword(s):  
Coronary Artery ◽  
Left Ventricle ◽  
Right Coronary Artery ◽  
Rare Case ◽  
Median Sternotomy ◽  
Coronary Artery Fistula ◽  
Ct Images ◽  
Coronary Ct

AbstractWe describe a rare case of aneurysmal right coronary artery drainage into left ventricle in a 38-year old male with entailed coronary CT images. After median sternotomy surgery, the patient recovered well.

scholarly journals Cardiac and coronary artery study on sudden death cases in Hospital Canselor Tuanku Muhriz

2021 ◽  
Vol 5 (10) ◽  
Author(s):  
Shih Sheng Soo ◽  
Siti Balkis Budin ◽  
Ismarulyusda Ishak ◽  
Faridah Mohd Nor ◽  
Nur Najmi Mohamad Anuar
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Sudden Death ◽  
Thrombus Formation ◽  
Arterial Occlusion ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Left Ventricular Myocardium ◽  
Common Presentation ◽  
Acute Mi

Background: Sudden death (SD) is defined as an unexpected natural death within an hour onset of symptoms or unwitnessed death that occurs within 24 hours, which accounts for most cardiovascular deaths in Malaysia. This study aimed to evaluate the extent of histopathological changes in the heart and to study the demographic trend in SD cases in Kuala Lumpur, Malaysia. Methods: Specimens from all SD cases were received from 2017 to 2018 by the Forensic Unit, Hospital Canselor Tuanku Mukhriz (HCTM) were studied. The specimens were the left ventricular myocardium and left anterior descending artery (LAD), which were fixed in 10% formalin with haematoxylin and eosin staining. The tissues were graded histologically based on changes such as arterial occlusion, myocardial infarction, and/or thrombus formation. Results: Out of 545 medicolegal deaths, only 25 cases (4.6%) had samples available for analysis. Among these 25 patients, 24 (96%) were male patients and only one (4%) was a female patient. The available samples were from patients aged between 30 to 79 years old. In terms of ethinicity, Malays (40%) were the most numerous, followed by patients of Chinese and Indian ethnicities.The majority of the SD cases had a body mass index (BMI) that ranged between underweight (56%) and obese (40%). Besides, there were 10 (40%) cases of coronary artery with atheroma and 15 (60%) cases of myocardial infarction. The most common presentation of atherosclerosis was grade III and IV, and acute MI was the most common presentation at death, followed by healed infarcts and old infarcts. Discussion and Conclusion: Our findings reflect worsening risk factor levels in cardiovascular diseases, compounded by demographic trends. Further studies on biomarkers specific for cardiac diseases are warranted to understand imminent sudden cardiac death.

scholarly journals DIAGNOSTIC OF THE ATHLETE’S HEART AND FACTORS AFFECTING ITS DEVELOPING

2021 ◽  
Vol 74 (5) ◽  
pp. 1158-1163
Author(s):  
Serhiy V. Popov ◽  
Oleksandr I. Smiyan ◽  
Andrii M. Loboda ◽  
Viktoriia O. Petrashenko ◽  
Olena K. Redko ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Heart Development ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Athlete’S Heart ◽  
Left Ventricular Myocardium ◽  
Factors Affecting ◽  
Ultrasound Study ◽  
And Function ◽  
Athlete's Heart

The aim: Studying the features of the structure and function of the heart in athletes and identifying the factors that influence the development of these changes. Materials and methods: The study included 54 athletes, 29 men and 25 women. The ultrasound study was performed according to standard methods with determining the size of the main structures of the heart, indicators normalized to body surface area, height. Results: The heart of dilatation and hypertrophy of the left ventricular myocardium were found in 25.93% of the athletes. When comparing the diameter of the left ventricle of individual athletes with the average values of the norm, their excess was found in 94.44% of athletes. The Odds ratio (OR) of the relationship between left ventricle diameter (LVd) and time of the exercise less than 10 y was 16.13, time of the exercise less than 5 y – 0.17 (p <0.05). OR of increase LVd to age less than 20 years was 3.56 units (p <0.05). The ejection fraction was above the normative mean in 75.93%, as well as the ratio of the periods of filling of the ventricles. Conclusions: The most common sign of an athlete’s heart development was left ventricular dilatation, which occurred at a rate of 25 percent. Age less than 20 years and the duration of sports activities from 5 to 10 years is associated with a higher frequency of the athlete’s heart.

scholarly journals Physiology-Based Electrocardiographic Criteria for Left Bundle Branch Capture

2020 ◽  
Author(s):  
Marek Jastrzębski ◽  
Grzegorz Kiełbasa ◽  
Karol Curila ◽  
Paweł Moskal ◽  
Agnieszka Bednarek ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Left Ventricular Myocardium ◽  
Peak Time ◽  
List Type ◽  
Bundle Branch Block ◽  
Characteristics Analysis ◽  
Qrs Morphology ◽  
Ecg Criteria

AbstractBackgroundDuring left bundle branch (LBB) area pacing, it is important to confirm that the capture of the LBB is achieved, not just the capture of only the adjacent left ventricular myocardium (LV septal capture). Our aim was to establish ECG criteria for LBB capture by analyzing ECGs with confirmed LBB capture and non-capture. We hypothesized that since LBB pacing results in physiologic depolarization of the left ventricle then the native QRS can serve as a reference for the diagnosis of LBB capture in the same patient.MethodsOnly patients with direct evidence of LBB capture (output-dependent or refractoriness-dependent QRS morphology transition) were included. Several QRS characteristics were compared between the native rhythm and different types of LBB area capture. Receiver-operator characteristics analysis was performed to determine the optimal V6 R-wave peak time (RWPT) cut-off for LBB diagnosis.ResultsA total of 357 ECG tracing (124 patients) were analyzed: 118 with native rhythm, 124 with non-selective LBB capture, 69 with selective LBB capture and 46 with LV septal capture. Our hypotheses that during LBB capture the paced V6 RWPT (measured from QRS onset) equals the native V6 RWPT and that the paced V6 RWPT (measured from the stimulus) equals the LBB potential to V6 R-wave peak interval were positively validated. Criteria based on these rules had sensitivity and specificity of 98.0–88.2% and 85.7–95.4%, respectively. The optimal and 100% specific V6 RWPT values for differentiation between LBB capture and LV septal capture in patients with narrow QRS / right bundle branch block were 83 ms and 74 ms, respectively; while in patients with left bundle branch block/asystole/ventricular escape the optimal and 100% specific V6 RWPT values were 101 ms and 80 ms, respectively.ConclusionsNovel criteria for LBB capture were developed and optimal V6 RWPT cut-offs were determined.What this study addsWe showed that LBB pacing truly reproduce the physiological depolarization of the left ventricle since the paced V6 RWPT equals the native conduction V6 RWPT.Individualized LBB capture criteria, that use the native QRS as a reference, were developed.The optimal V6 RWPT values for differentiation between LBB capture and LV septal capture were determined, separately for patients with healthy and diseased LBB.

Preparation of Nano Zinc Particles and Evaluation of Its Application in Mouse Myocardial Infarction Model

2021 ◽  
Vol 21 (2) ◽  
pp. 1196-1201
Author(s):  
Yue Song ◽  
Lisong Wu ◽  
Jian Cao ◽  
Bangrong Song
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricle ◽  
Raw Materials ◽  
Ventricular Myocardium ◽  
Left Ventricular ◽  
Iron Chloride ◽  
Left Ventricular Myocardium ◽  
Zinc Nanoparticles ◽  
Synthesis Conditions ◽  
Nano Zinc

Nanometer zinc particles were synthesized by orthogonal test with manganese chloride, iron chloride and zinc sulfate as raw materials and NaOH as coprecipitating agent. The optimum synthesis conditions of coprecipitation method were obtained and the samples were characterized by various means. In this experiment, the SV, EF, FS, lvaws, lvawd, lvpws and lvpwd of left ventricle in mice with myocardial infarction were decreased, while the LVEDd, lveds and lvevs were increased in the environment exposed to ultrafine zinc nanoparticles, which proved that exposure to ultrafine zinc nanoparticles could lead to the enlargement of left ventricle, the thinning of ventricular wall, and the decrease of cardiac systolic and diastolic function. Further study on the heart tissue sections showed that the normal left ventricular myocardium of mice exposed to ultrafine zinc nanoparticles decreased, apoptotic cells increased, collagen content increased significantly, and myocardial fibrosis intensified. At the same time, WGA staining results of myocardial cell membrane showed that inhalation of ultra-fine nano zinc particles increased the size of myocardial infarction cells and disordered cell arrangement, which further proved that inhalation of ultra-fine nano zinc particles accelerated left ventricular pathological remodeling. The results of this study prove that the ultra-fine zinc nanoparticles in the air play an important role in the structural remodeling of myocardial infarction heart, and provide a theoretical basis for formulating targeted policies to control air pollution.

Single right coronary artery with right ventricular fistula and congenital absence of left coronary artery: an extremely rare combination

2019 ◽  
Vol 29 (11) ◽  
pp. 1402-1403
Author(s):  
Tamer Yoldaş ◽  
Meryem Beyazal ◽  
Utku A. Örün
Keyword(s):  
Coronary Artery ◽  
Right Ventricle ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Coronary Artery Fistula ◽  
Left Ventricular ◽  
Congenital Absence ◽  
Collateral Vessels ◽  
The Right ◽  
Single Right Coronary Artery

AbstractWe report an extremely rare case of a 14-month-old girl who was diagnosed with a single right coronary artery with coronary artery fistula communicating with the right ventricle and congenital absence of left coronary artery. Angiography showed a dilated and tortuous single right coronary artery draining into the right ventricle, absence of left coronary system, and left ventricular coronary circulation supplied via collateral vessels.

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