在动脉置换术后发生不律性缩
Roberto Alvarez Coello1, Muhieddine Omar Chokr1, Rodrigo Melo Kulchetscki1
1Arrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Pacing and clinical electrophysiology : PACE
|April 26, 2025
概括
一名年轻男子在进行大动脉置换后出现了腹腔动脉短心 (VT). 内动脉气球 (IABP) 的支持对于管理耐火静脉关键,该静脉成功通过右束枝切除进行治疗.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心脏外科手术 心脏外科手术
背景情况:
- 严重的大动脉 insufficiency 需要机械假肢更换.
- 手术后腹腔动心 (VT) 可能是心脏手术后的严重并发症.
- 耐火性静脉瘤是一个重大的临床挑战,通常需要先进的血液动力学支持.
研究的目的:
- 在机械大动脉置换后报告一种罕见的捆绑分支复入心室低心率 (BBR-VT) 病例.
- 突出在术后期耐火性静脉瘤的诊断挑战和管理策略.
- 为了证明右捆支部切除在治疗BBR-VT方面的有效性.
主要方法:
- 一个病例报告详细介绍了一个年轻的男性患者,患有严重的大动脉缺陷.
- 管理涉及机械大动脉假体更换,然后是紧急大动脉内气球 (IABP) 支持耐火静脉动脉.
- 进行了电生理学研究,随后进行了右束分支 (RBB) 切除.
主要成果:
- 该患者在手术后一个月出现昏迷和不间断的静脉,进展为心脏性休克.
- 标准的 VT 管理失败了,但 VT 响应了 IABP 的支持.
- 电生理学研究没有诱导VT,但机动建议BBR-VT,它被成功消去.
结论:
- 捆绑分支重入腹腔动心 (BBR-VT) 是大动脉置换后的一种潜在并发症.
- 内动脉气球 (IABP) 的支持可以在管理血液动力学不稳定的静脉瘤中起到至关重要的作用.
- 右束枝 (RBB) 切除为BBR-VT提供了有效的治疗方法.
更多相关视频
14:14Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
14.0K
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
3.4K
相关概念视频
Imbalances in Cardiac Output
1.4K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.4K
Disturbances in Heart Rhythm
922
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
922
Heart Valves
4.4K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
4.4K
Cardiovascular System Abnormal Findings II: Auscultation
114
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:
Abnormal Heart Sounds
Gallops:
114
Mechanism of Cardiac Arrhythmias
903
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.
903
Cardiac Cycle
4.7K
The cardiac cycle refers to the sequence of events that occur in the heart from the beginning of one heartbeat to the next. It's characterized by alternating periods of contraction (systole) and relaxation (diastole) of the heart muscles.
During the cardiac cycle, blood flow through the heart is regulated entirely by changing pressure gradients. This sequence of events begins with the heart in a state of total relaxation, known as mid-to-late diastole, during which blood passively flows from...
During the cardiac cycle, blood flow through the heart is regulated entirely by changing pressure gradients. This sequence of events begins with the heart in a state of total relaxation, known as mid-to-late diastole, during which blood passively flows from...
4.7K
