Improvement of hyperadrenergic postural orthostatic tachycardia syndrome (POTS) with methylated B vitamins in the setting of a heterozygous COMT Val158Met polymorphism

2021 ◽  
Vol 14 (11) ◽  
pp. e245012
Author(s):  
Nikita Mittal ◽  
Ariel Portera ◽  
Pam Taub

A middle-aged woman was diagnosed with postural orthostatic tachycardia syndrome based on her clinical symptoms, elevated norepinephrine levels and positive tilt-table test. The patient was refractory to conventional treatment and improved only after she was treated with methylated B vitamins for her heterozygous catechol-O-methyltransferase Val158Met polymorphism.

Author(s):  
Giovanna Onfiani ◽  
Fabio Nascimbeni ◽  
Francesca Carubbi

Abstract Objectives Statins have proved to reduce cardiovascular morbidity and mortality in high-risk population and are generally well tolerated, although adverse events can occur. Up to 3% of patients develop aminotransferases elevation, which usually normalizes with continued treatment and hardly is associated with clinical symptoms. Serious statin-related liver injury is exceedingly rare. Furthermore, literature regarding rechallenge with a second statin is extremely poor. Some authors caution that re-exposure to these drugs is associated with a more serious liver injury but safe switching to a second statin after drug-induced liver injury (DILI) is also reported. Case presentation We describe a case of a middle-aged woman who developed hepatocellular liver injury after simvastatin dose escalation; a rechallenge with low dose rosuvastatin caused rapid recurrence of DILI. Conclusions In our opinion, clinicians should be very cautious upon rechallenge and closely follow-up patients who experienced statin-induced liver injury when trying re-exposure to another statin.


2019 ◽  
Vol 12 (9) ◽  
pp. e229824
Author(s):  
Andrew T Del Pozzi ◽  
Michael Enechukwu ◽  
Svetlana Blitshteyn

Postural orthostatic tachycardia syndrome (POTS) is a heterogeneous autonomic disorder characterised by orthostatic intolerance and a rise in heart rate by at least 30 bpm or an absolute heart rate value of at least 120 bpm within 10 min of standing or during a tilt table test. Overwhelmingly, POTS affects young Caucasian women, which can lead physicians to miss the diagnosis in men or non-white patients. We describe a case of 29-year-old African-American man who developed lightheadedness, generalised weakness, tachycardia and palpitations and was subsequently diagnosed with POTS. We review its clinical features, differential diagnosis, pathophysiology and treatment options. We also emphasise that POTS should be considered as a differential diagnosis in any patient presenting with typical clinical features, who may not be in the usual demographics of the disorder.


2018 ◽  
Vol 129 ◽  
pp. e86-e87
Author(s):  
Luka Crnošija ◽  
Berislav Ruška ◽  
Magdalena Krbot Skorić ◽  
Ivan Adamec ◽  
Mario Habek

2021 ◽  
Vol 14 (8) ◽  
pp. e242472
Author(s):  
Deshveer Babra ◽  
Suhyun Youn ◽  
Senan Devendra

Postural orthostatic tachycardia syndrome (POTS) is a common condition of orthostatic intolerance in response to changes in position. We report a case of a middle-aged woman presenting with a new onset of POTS likely due to chemotherapy for treatment of breast cancer. She was started on a trial of a beta blocker, which was effective in controlling her symptoms and heart rate. The objective of this report was to encourage clinicians to consider POTS as a differential diagnosis, while managing patients with symptoms of orthostatic intolerance.


2015 ◽  
Vol 357 ◽  
pp. e199
Author(s):  
L. Crnosija ◽  
M. Krbot Skoric ◽  
I. Adamec ◽  
M. Lovric ◽  
A. Junakovic ◽  
...  

2013 ◽  
Vol 56 (1) ◽  
pp. 32 ◽  
Author(s):  
Tae-Eon Huh ◽  
Jung Sook Yeom ◽  
Young-Soo Kim ◽  
Hyang-Ok Woo ◽  
Ji Sook Park ◽  
...  

2016 ◽  
Vol 127 (3) ◽  
pp. e66
Author(s):  
L. Crnosija ◽  
M. Krbot Skoric ◽  
I. Adamec ◽  
A. Mišmaš ◽  
V. Miletić ◽  
...  

2019 ◽  
Vol 15 (2) ◽  
pp. 205 ◽  
Author(s):  
Mario Habek ◽  
Berislav Ruška ◽  
Luka Crnošija ◽  
Ivan Adamec ◽  
Anamari Junaković ◽  
...  

2013 ◽  
Vol 24 (4) ◽  
pp. 649-653 ◽  
Author(s):  
Li Chen ◽  
Xueying Li ◽  
Ochs Todd ◽  
Cheng Wang ◽  
Hongfang Jin ◽  
...  

AbstractObjective: At present, the haemodynamic diagnosis of orthostatic intolerance is based mainly on the head-up tilt table test, which is sometimes risky for patients. Thus, it is important to find objective and safe methods to differentiate haemodynamic patterns of orthostatic intolerance cases. Methods: In all, 629 children with orthostatic intolerance, either vasovagal syncope or postural orthostatic tachycardia syndrome, were included in the multi-centre clinical study. We analysed the association between the clinical manifestation and haemodynamic patterns of the patients. Results: Syncope after motion with a prodrome of chest distress or palpitations and the concomitant symptom(s) after a syncopal attack, with debilitation, dizziness or headache, were the most important variables in predicting the diagnosis of vasovagal syncope. The overall diagnostic accuracy was 71.5%. Conclusion: Complaint of syncope after motion with prodromal chest distress or palpitation and the concomitant symptom after a syncopal attack, with subsequent debilitation, dizziness or headache, were the most important variables in the diagnosis of vasovagal syncope in children with orthostatic intolerance.


2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Funda Oztunc ◽  
Sezen Ugan Atik ◽  
Reyhan Dedeoglu ◽  
Firuze Erbek Alp ◽  
Selman Gokalp

Postural orthostatic tachycardia syndrome (POTS) is an abnormal heart rate response to a positional change. Several potential mechanisms for pathophysiology of POTS are defined. This syndrome can coexist with different clinical situations. In our report, the first case was a 13-year-old female who has been followed up for diagnosis of homocystinuria. She was admitted to our outpatient clinic with complaints of dizziness after suddenly moving from supine to upright position and chest pain after exercise. Tilt table test was performed to evaluate dizziness. According to the tilt table test the patient was diagnosed with POTS. The second case was a 17-year-old female who had been evaluated in different centers with the complaints of fainting, bruising, redness, and swelling on the hands and feet after moving from supine position to upright position during the last 4 years. Postural orthostatic tachycardia syndrome was diagnosed by tilt table test and ivabradine was started. Herein, we aimed to point out the cooccurrence of different clinical entities and POTS.


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