Acute Right Heart Failure Induced by ICD Lead Implantation in Patient with Severe Left Ventricular Dysfunction

2017 ◽  
Vol 23 (10) ◽  
pp. S33
Author(s):  
Toyoji Kaida ◽  
Toshimi Koitabashi ◽  
Yuichiro Iida ◽  
Takeru Nabeta ◽  
Shunsuke Ishii ◽  
...  
Keyword(s):  
Heart Failure ◽  
Left Ventricular Dysfunction ◽  
Ventricular Dysfunction ◽  
Right Heart Failure ◽  
Left Ventricular ◽  
Right Heart ◽  
Severe Left Ventricular Dysfunction

scholarly journals Right ventricular dysfunction and pulmonary hypertension: a neglected presentation of thyrotoxicosis

2018 ◽  
Vol 2018 ◽  
Author(s):  
Carolina Shalini Singarayar ◽  
Foo Siew Hui ◽  
Nicholas Cheong ◽  
Goay Swee En
Keyword(s):  
Heart Failure ◽  
Pulmonary Hypertension ◽  
Right Ventricular ◽  
Left Ventricular Dysfunction ◽  
Ventricular Dysfunction ◽  
Right Ventricular Dysfunction ◽  
Right Heart Failure ◽  
Left Ventricular ◽  
Newly Diagnosed ◽  
Right Heart

Summary Thyrotoxicosis is associated with cardiac dysfunction; more commonly, left ventricular dysfunction. However, in recent years, there have been more cases reported on right ventricular dysfunction, often associated with pulmonary hypertension in patients with thyrotoxicosis. Three cases of thyrotoxicosis associated with right ventricular dysfunction were presented. A total of 25 other cases of thyrotoxicosis associated with right ventricular dysfunction published from 1994 to 2017 were reviewed along with the present 3 cases. The mean age was 45 years. Most (82%) of the cases were newly diagnosed thyrotoxicosis. There was a preponderance of female gender (71%) and Graves’ disease (86%) as the underlying aetiology. Common presenting features included dyspnoea, fatigue and ankle oedema. Atrial fibrillation was reported in 50% of the cases. The echocardiography for almost all cases revealed dilated right atrial and or ventricular chambers with elevated pulmonary artery pressure. The abnormal echocardiographic parameters were resolved in most cases after rendering the patients euthyroid. Right ventricular dysfunction and pulmonary hypertension are not well-recognized complications of thyrotoxicosis. They are life-threatening conditions that can be reversed with early recognition and treatment of thyrotoxicosis. Signs and symptoms of right ventricular dysfunction should be sought in all patients with newly diagnosed thyrotoxicosis, and prompt restoration of euthyroidism is warranted in affected patients before the development of overt right heart failure. Learning points: Thyrotoxicosis is associated with right ventricular dysfunction and pulmonary hypertension apart from left ventricular dysfunction described in typical thyrotoxic cardiomyopathy. Symptoms and signs of right ventricular dysfunction and pulmonary hypertension should be sought in all patients with newly diagnosed thyrotoxicosis. Thyrotoxicosis should be considered in all cases of right ventricular dysfunction or pulmonary hypertension not readily explained by other causes. Prompt restoration of euthyroidism is warranted in patients with thyrotoxicosis complicated by right ventricular dysfunction with or without pulmonary hypertension to allow timely resolution of the abnormal cardiac parameters before development of overt right heart failure.

scholarly journals The Challenges of Tachycardia Induced Cardiomyopathy - a Case Report

2021 ◽  
Vol 31 (2) ◽  
pp. 391-394
Author(s):  
Andreea Elena VELCEA ◽  
Maria Claudia Berenice SURAN ◽  
Dragos VINEREANU
Keyword(s):  
Heart Failure ◽  
Catheter Ablation ◽  
Left Ventricular Dysfunction ◽  
Ventricular Dysfunction ◽  
Left Ventricular ◽  
Rhythm Control ◽  
Left Ventricular Ejection ◽  
Severe Left Ventricular Dysfunction ◽  
Heart Failure Medication ◽  
Tachycardia Induced Cardiomyopathy

Tachycardia-induced cardiomyopathy (TIC) is characterized by reversible left ventricular dysfunction caused by long-standing tachycardia. Treatment options for tachyarrhythmias causing TIC have evolved, especially the rhythm control strategies, ensuring a better and more sustainable control of the arrhythmia. We report the case of a 46-year-old male presenting with acute heart failure, atrial fi brillation (AF) of unknown duration and severe left ventricular dysfunction, as well as left ventricular dilation. His medical history was relevant for atrial fl utter treated with catheter ablation, hypertension, and frequent atrial ectopy for which he had been prescribed amiodarone. Coronary artery disease and other potential causes for left ventricular dysfunction were excluded with coronary angiography and cardiac magnetic resonance. Thus, the patient had a high suspicion of TIC. We opted for a rhythm control strategy, however, after a successful initial electrical cardioversion, he had AF recurrence a few days later, under classic heart failure medication and antiarrhythmics. Pulmonary vein isolation was then performed, with no complications. At the one-month follow-up visit the patient was arrhythmia-free and had a normal left ventricular ejection fraction, with a slightly enlarged left ventricle. We opted to continue the heart failure medication. This case illustrates a typical case of AF induced TIC and the limited pharmacological options that exist for rhythm control, as well as the high efficacy of catheter ablation and value of imaging.

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