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Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

368
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
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Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

360
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
360
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

416
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
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Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
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Cardiovascular System Abnormal Findings I: Inspection and Palpation01:29

Cardiovascular System Abnormal Findings I: Inspection and Palpation

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In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection
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Updated: Jan 7, 2026

Identification of Neutrophil Extracellular Traps in Paraffin-Embedded Feline Arterial Thrombi using Immunofluorescence Microscopy
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Identification of Neutrophil Extracellular Traps in Paraffin-Embedded Feline Arterial Thrombi using Immunofluorescence Microscopy

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猫类甲状腺功能障碍症中的心脏异常

Birgit van Zuiden1, Giorgia Santarelli1, Sara Galac1

  • 1Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands.

Veterinary sciences
|December 31, 2025
PubMed
概括

老猫的甲状腺功能障碍通常会导致心脏问题,如心血管大症. 治疗以使甲状腺激素水平正常化往往可以逆转这些心脏变化,防止心力衰竭.

关键词:
NT-proBNP 的国家统计.猫和猫咪,它们都是猫咪.呼吸障碍 呼吸障碍 呼吸障碍超声心电图 (Echocardiography) 是一种心声回声仪.心脏衰竭是因为心脏衰竭.过度缩性心肌病变性心脏病.胸腔溢出 胸腔溢出 胸腔溢出 胸腔溢出肺部水腫 肺部水腫

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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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科学领域:

  • 兽医医学 兽医医学 兽医医学
  • 内分泌学 在内分泌学.
  • 心脏病学 心脏病学

背景情况:

  • 甲状腺功能障碍是老龄化猫群中普遍存在的内分泌疾病.
  • 这种情况经常导致二次心脏异常,影响长期健康.
  • 了解这些心脏变化和治疗效果对于猫科动物患者管理至关重要.

研究的目的:

  • 为了研究与猫的甲状腺功能障碍相关的心脏异常.
  • 为了评估治疗后这些心脏变化的可逆性.
  • 为患病的猫建立最佳的监测和查协议.

主要方法:

  • 对高甲状腺猫的心声回声检测结果的综述.
  • 在治疗前和治疗后分析心脏结构和功能.
  • 甲状腺激素水平与心脏状况的相关性.

主要成果:

  • 甲状腺功能较高的猫通常表现为心肌大,左心室缩和左心房扩张.
  • 随着甲状腺激素水平正常化,心脏异常通常是可逆的.
  • 预先存在的疾病,如多变性心肌病,可能会阻碍心脏完全恢复.

结论:

  • 常规回声心脏图谱建议用于监测甲状腺功能高的猫的心脏变化.
  • 查老猫患有心脏病的甲状腺功能障碍症至关重要.
  • 高甲状腺症的有效治疗可以预防心力衰竭的发展.