A Case of Intermittent Left Bundle Branch Block

Saad, Syed Muhammad Ali; Polani, Faran S; LeLorier, Paul

doi:10.7759/cureus.15851

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…Though commonly associated with conditions causing myocardial fibrosis such as hypertension, coronary artery disease, and cardiomyopathies, intermittent LBBB is a rare occurrence. It has been reported with exercise, tachycardia, ischemic and hypertensive heart disease, hyperkalemia, drugs, anesthesia, pulmonary embolism, chest trauma, and cardiac interventional procedures [ 8 - 12 ]. Apart from transient LBBB, RBBB, bifascicular block, and advanced AV block have also been reported [ 13 - 15 ].…”

Section: Discussionmentioning

confidence: 99%

Dynamic Changes of EKG by Severe Hyperkalemia: Transient Left Bundle Branch Block

Chandok¹,

Lee²,

Ali³

et al. 2023

Cureus

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Hyperkalemia is one of the most common electrolyte abnormalities seen in clinical practice and the most common life-threatening electrolyte abnormality seen in the emergency department. It is most often due to impaired renal potassium excretion due to acute on chronic kidney disease or the use of drugs that inhibit the renin-angiotensin-aldosterone axis. The most common clinical presentation is muscle weakness and cardiac conduction abnormalities. In the Emergency Department, ECG can come in handy as the first diagnosis of hyperkalemia before labs are drawn and reported. Early recognition of electrocardiographic (ECG) changes can prompt early correction and reduce mortality. We hereby, present a case of transient left bundle branch block in the setting of hyperkalemia secondary to statin-induced rhabdomyolysis.

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Section: Discussionmentioning

confidence: 99%

Dynamic Changes of EKG by Severe Hyperkalemia: Transient Left Bundle Branch Block

Chandok¹,

Lee²,

Ali³

et al. 2023

Cureus

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“…Geriatric population now undergoes various procedures everyday around the world. LBBB usually results from conduction system degeneration or myocardial pathology [1,2]. New onset of arrhythmias can occur due to innumerable causes, but remission of LBBB under general anaesthesia is rarely documented.…”

Section: Introductionmentioning

confidence: 99%

Critical Heart Rate Dependent LBBB: Need Caution!

Gill¹,

Mudgal²

2022

SCR

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Right bundle branch block (RBBB) and left bundle branch block (LBBB) are commonly seen in geriatric cases posted for surgeries. LBBB usually results from conduction system degeneration or myocardial pathology. LBBB is often associated with hypertension, myocarditis, coronary heart disease, aortic valve disease, cardiomyopathy etc. We report a case of diagnosed LBBB preoperatively posted for emergency spinal decompression. After induction of anaesthesia, the heart rate settled below 77 beats per minute (bpm) and led to reversion of LBBB to normal sinus rhythm. LBBB is a red flag diagnosis to the anaesthesiologist. But the knowledge of critical heart rate is important; below which the rhythm may revert back to normal sinus rhythm. The knowledge to differentiate between myocardial ischaemia and LBBB is the need of the hour.

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A Case of Intermittent Left Bundle Branch Block

Cited by 2 publications

References 10 publications

Dynamic Changes of EKG by Severe Hyperkalemia: Transient Left Bundle Branch Block

Dynamic Changes of EKG by Severe Hyperkalemia: Transient Left Bundle Branch Block

Critical Heart Rate Dependent LBBB: Need Caution!

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