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Thyrotoxic heart disease

Jie-Eun Lee, Dong Hwa Lee, Tae Jung Oh, Kyoung Min Kim, Sung Hee Choi, Soo Lim, Young Joo Park, Do Joon Park, Hak Chul Jang, Jae Hoon Moon
BACKGROUND: Thyrotoxicosis is a common disease caused by an excess of thyroid hormones. The prevalence of thyrotoxicosis about 2% and 70-90% of thyrotoxicosis cases are caused by Graves' disease, an autoimmune disease, which has a high recurrence rate when treated with antithyroid drugs such as methimazole or propylthiouracil. The clinical symptoms and signs of thyrotoxicosis include palpitation, weight loss, restlessness, and difficulty sleeping. Although these clinical changes in thyrotoxicosis can be detected by currently available wearable activity trackers, there have been few trials of the clinical application of wearable devices in patients with thyrotoxicosis...
February 21, 2018: JMIR Research Protocols
Natalie Watson, Jane K Murray, Sonja Fonfara, Angie Hibbert
Objectives This study sought to explore the clinicopathological features and comorbidities of cats with mild, moderate and severe hyperthyroidism in a radioiodine referral population. Methods Medical records were reviewed, along with results of serum biochemistry, urinalysis, systolic blood pressure and diagnostic imaging performed at the time of radioiodine referral. Cats were grouped by total thyroxine (TT4) levels as mildly (TT4 60.1-124.9 nmol/l), moderately (TT4 125-250 nmol/l) or severely (TT4 >250 nmol/l) hyperthyroid at the time of diagnosis and referral...
February 1, 2018: Journal of Feline Medicine and Surgery
Wes Brundridge, Jack Perkins
BACKGROUND: Thyroid storm (also known as thyroid or thyrotoxic crisis) is part of the spectrum of thyrotoxicosis and represents the extreme end of that spectrum. The condition is quite rare, yet mortality rates are high and may approach 10-30%. CASE REPORT: A 34-year-old-man who had a history of Graves disease presented in atrial fibrillation with rapid ventricular response and mild congestive heart failure. During the course of his Emergency Department (ED) stay he deteriorated into cardiogenic shock...
December 2017: Journal of Emergency Medicine
Keniel Pierre, Sushee Gadde, Bassam Omar, G Mustafa Awan, Christopher Malozzi
We report a 42-year-old female who was admitted for abdominal pain, and also endorsed dyspnea, fatigue and chronic palpitations. Past medical history included asthma, patent ductus arteriosus repaired in childhood and ill-defined thyroid disease. Physical examination revealed blood pressure of 136/88 mm Hg and heart rate of 149 beats per minute. Cardiovascular exam revealed an irregularly irregular rhythm, and pulmonary exam revealed mild expiratory wheezing. Abdomen was tender. Electrocardiogram revealed atrial fibrillation with rapid ventricular response which responded to intravenous diltiazem...
June 2017: Cardiology Research
Zhimin Liao, Yaqin Xiong, Linli Luo
A 29-year-old woman at 34 weeks' gestation with uncontrolled hyperthyroidism and thyrotoxic heart disease was admitted to urgency Cesarean section. After preoperative sedation and good communication, low-dose spinal anesthesia (7.5 mg 0.5 % bupivacaine) combined with epidural anesthesia (6 ml 2 % lidocaine) was performed through L3-4 inter-vertebral. Opioids were given intravenously to the mother for sedation after delivery of the baby. Satisfactory anesthesia and sedation was provided during surgery. The mother and the neonate were safe and no special complication was found after surgery...
August 2016: Journal of Anesthesia
Joseph Allencherril, Itamar Birnbaum
Thyrotoxicosis-induced cardiomyopathy and consequent heart failure is one of the most grave complications of uncontrolled hyperthyroidism. In such patients, early recognition of thyrotoxicosis, and directed antithyroid therapy can lead to rapid normalization of left ventricular function. Herein, we present a case of a 29-year-old male with Graves' disease who developed heart failure with severe deterioration of left ventricular function and eventually, circulatory collapse. Height and weight of the patient were 1...
December 2015: Journal of Extra-corporeal Technology
Sri Harsha Tella, Anuhya Kommalapati
Thyrotoxic hypokalemic periodic paralysis (TPP) is a condition characterized by the triad of acute hypokalemia without total body potassium deficit, episodic muscle paralysis, and thyrotoxicosis. We describe two cases of thyrotoxic periodic paralysis who presented to our hospital with potassium values of 1.3 MeQ/l and 1.2 MeQ/l, respectively. Surprisingly, the two patients had no documented past medical history. Based on the clinical features of high heart rate, palpitations (seen in both the patients), and exophthalmos (seen in one patient), thyrotoxic periodic paralysis was suspected...
October 6, 2015: Curēus
Yong Ding, Jialiu Xing, Yi Fang, Yong Wang, Youren Zhang, Yahong Long
The aim of this study is to evaluate the safety and long-term results of (131)I therapy alone for patients with refractory severe hyperthyroidism without antithyroid drug pretreatment. From January 2002 to December 2012, 408 patients with refractory severe hyperthyroidism were treated with (131)I alone. Among them, 345 were followed up for 1 to 10 years for physical examination, thyroid function, and thyroid ultrasound. Complete Blood Count (CBC) liver function, electrocardiogram, echocardiogram, and Emission Computed Tomography (ECT) thyroid imaging were performed as indicated...
February 2016: Experimental Biology and Medicine
Gerasimos Krassas, Spyridon N Karras, Nikolaos Pontikides
The most common thyroid diseases during pregnancy are hyper- and hypothyroidism and their variants including isolated hypothyroxinemia (hypo-T4), autoimmune thyroid disease (AITD) and different types of goiter. AITD represents the main cause of hypothyroidism during pregnancy ranging in prevalence between 5 and 20% with an average of 7.8%. The incidence of isolated hypo-T4 is about 150 times higher compared to congenital hypothyroidism. Prevalence of Graves' disease (GD) ranges between 0.1% and 1% and the Transient Gestational Hyperthyroidism Syndrome between 1 and 3%...
January 2015: Hormones: International Journal of Endocrinology and Metabolism
Iryna Tsymbaliuk, Dmytro Unukovych, Nataliia Shvets, Andrii Dinets
BACKGROUND: Graves' disease (GD) is a common cause of hyperthyroidism resulting in development of thyrotoxic heart disease (THD). OBJECTIVES: to assess cardiovascular disorders and health related quality of life (HRQoL) in patients with THD secondary to GD. PATIENTS AND METHODS: All patients diagnosed with THD secondary to GD between January 2011 and December 2013 were eligible for this study. Clinical assessment was performed at baseline and at the follow-up visit after the restoring of euthyroid state...
2015: PloS One
Raphael C Anakwue, Basden J Onwubere, Vincent Ikeh, Benedict Anisiuba, Samuel Ike, Angel-Mary C Anakwue
INTRODUCTION: Thyrotoxicosis is an endocrine disorder with prominent cardiovascular manifestations. Thyroid hormone acts through genomic and non-genomic mechanisms to regulate cardiac function. Echocardiography is a useful, non-invasive, easily accessible, and affordable tool for studying the structural and physiological function of the heart. AIM: We studied thyrotoxicosis patients in a Nigerian Teaching Hospital and employed trans-thoracic echocardiography to find out if there were abnormalities in the hearts of these patients...
2015: Therapeutics and Clinical Risk Management
Y Sato, M Murata, J Sasahara, S Hayashi, K Ishii, N Mitsuda
Prenatal ultrasonography of a pregnant woman with a past history of total thyroidectomy for Graves' disease detected fetal tachycardia, fetal growth restriction and oligohydramnios at 30 weeks gestation. Because a high titer of thyroid-stimulating hormone receptor antibody was noted in maternal serum and the fetal goiter was detected on ultrasonography, fetal hyperthyroidism was strongly suspected and subsequently confirmed with cordocentesis at 31 weeks gestation. After treatment of fetal hyperthyroidism through oral maternal administration of methimazole (MMI) starting at 33 weeks gestation, fetal heart rate and amniotic fluid volume returned to normal ranges...
December 2014: Journal of Perinatology: Official Journal of the California Perinatal Association
Tasnim Ahsan, Zeenat Banu, Rukhshanda Jabeen, Muhammad Umar Farooq
OBJECTIVE: To evaluate clinical symptoms, signs and various forms of thyrotoxicosis, and to assess the thyroid function status at the first 6-week follow-up. METHODS: The retrospective chart review involved thyrotoxic patients presenting at the Endocrine Clinic of Jinnah Postgraduate Medical Centre, Karachi, between April 2007 and January 2011. All hyperthyroid patients were included with the exception of those with suspected or proven malignancy. The records were maintained on a structured proforma and analysed statistically to work out frequencies and percentages...
March 2013: JPMA. the Journal of the Pakistan Medical Association
Jane Hjørringgaard, Thomas Birkelund, Hanne Berg Ravn
A 52-year-old woman, who had an out-of-hospital cardiac arrest, was resuscitated, intubated and transferred with cardiogenic shock to angioplasty of the right coronary artery. Afterwards the patient had normal biventricular function, but four days later she developed atrial fibrillation and recurrent cardiogenic shock with a left ventricular ejection fraction of 20%. Thyrotoxic crisis was determined as the underlying cause; and antithyroid treatment stabilised the patient's haemodynamics completely within 24 hours...
April 1, 2013: Ugeskrift for Laeger
Marcus V Leitão de Souza, Fernanda Satake Novaes
Jaundice related to thyrotoxicosis and not as an effect of antithyroid drugs is a rare complication that usually occurs in the presence of heart failure (HF) or hepatitis. We report a case of a 54-year-old white woman with hyperthyroidism caused by Graves's disease and jaundice despite methimazole suspension. Bilirubin fluctuated at high values, between 30.0 and 52.3 mg/dL, transaminases were slightly increased, on admission ALT = 46 U/L and AST = 87 U/L; coagulation indices and serum proteins were on the lower limit of the normal range with PT 68% and albumin = 2...
October 2012: Arquivos Brasileiros de Endocrinologia e Metabologia
Dan Yun Chen, Peter F Schneider, Xiang Song Zhang, Zhi Min He, Tang Hua Chen
BACKGROUND: Thyrotoxic periodic paralysis (TPP) is a variant of periodic paralysis (PP) that occurs in patients with underlying mutations in genes for cation channels, if they develop thyrotoxicosis. It is disabling, and fatalities sometimes occur. Here, we present a patient with TPP who developed hypokalemic paralysis that was probably aggravated by the administration of a carbohydrate, probably contributing to, if not causing, a fatal outcome. SUMMARY: A 30-year-old Chinese patient received (131)I treatment for Graves' disease (GD) in our hospital...
September 2012: Thyroid: Official Journal of the American Thyroid Association
Xiao-Hu Kuang, Shu-Yang Zhang
Hyperthyroidism is associated with many heart diseases. Thyrotoxic state has a relationship with coronary spasm. We present a case of a non-menopausal woman with hyperthyroidism who complained of chest pain. The diagnosis of coronary spasm was confirmed by coronary angiography (CAG). She is treated well with anti-thyrotoxicosis and anti-anginal medication. We recommend not use CAG as the first diagnostic choice among the patients with medication-uncontrolled hyperthyroidism and chest pain.
December 2011: Journal of Geriatric Cardiology: JGC
Subramanian Kannan, Joshua D Safer
OBJECTIVE: To review cardiac manifestations in the syndrome of resistance to thyroid hormone (RTH) and to question the general recommendation that the thyroid-stimulating hormone (TSH) value be the guide to thyroid hormone replacement. METHODS: The syndrome of RTH is caused by mutations in the carboxy-terminal portion of the β isoform of the thyroid hormone receptor, resulting in variable clinical manifestations. It is generally recommended that the replacement of thyroid hormone in patients with RTH be guided by the serum TSH concentration...
March 2012: Endocrine Practice
Preeti A Chandra, Ajay Vallakati, Abhinav B Chandra, Manali Pednekar, Joydeep Ghosh
Monomorphic ventricular tachycardia (VT) is a unique manifestation of hyperthyroidism. We present the case of a 41-year-old male with a history of hyperthyroidism presenting with palpitations secondary to non-sustained episodes of monomorphic VT. Cardiac arrhythmias due to thyrotoxicosis are perpetually supraventricular in origin. Monomorphic VT in the setting of thyrotoxicosis in the absence of structural heart disease is exceedingly rare. After starting propranolol and increasing the dose of methimazole, the patient had no further episodes of VT...
2010: American Heart Hospital Journal
Elie Traube, Neil L Coplan
Atrial fibrillation, the most common cardiac complication of hyperthyroidism, occurs in an estimated 10% to 25% of overtly hyperthyroid patients. The prevalence of atrial fibrillation increases with age in the general population and in thyrotoxic patients. Other risk factors for atrial fibrillation in thyrotoxic patients include male sex, ischemic or valvular heart disease, and congestive heart failure. The incidence of arterial embolism or stroke in thyrotoxic atrial fibrillation is less clear. There are many reports of arterial thromboembolism associated with hyperthyroidism, including cases of young adults without coexisting risk factors other than thyrotoxic atrial fibrillation...
2011: Texas Heart Institute Journal
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