scholarly journals Differential Diagnosis of Wide QRS Tachycardias

2020 ◽  
Vol 9 (3) ◽  
pp. 155-160
Author(s):  
Demosthenes G Katritsis ◽  
Josep Brugada

In this article, the authors discuss the differential diagnostic methods used in clinical practice to identify types of wide QRS tachycardias (QRS duration >120 ms). A correct diagnosis is critical to management, as misdiagnosis and the administration of drugs usually utilised for supraventricular tachycardia can be harmful for patients with ventricular tachycardia.

2020 ◽  
Vol 33 (4) ◽  
pp. 200-204
Author(s):  
Lívia Teixeira Martins e Silva ◽  
Paula Damasco do Vale ◽  
Jairo Macedo da Rocha ◽  
Carla Septimio Margalho ◽  
Henrique César de Almeida Maia

A 16-year-old female patient was hospitalized due to narrow QRS tachycardia suggestive of fascicular ventricular tachycardia. Initially, the differential diagnosis with supraventricular tachycardia can be challenging. The tachyarrhythmia is well controlled with medication, but electrophysiological study and ablation may be necessary in patients who remain symptomatic.


ESC CardioMed ◽  
2018 ◽  
pp. 2256-2259
Author(s):  
Sei Iwai ◽  
Jason Jacobson

Wide QRS complex tachycardia (WCT) is a common clinical challenge, and can present in a variety of settings, including the emergency department, in the in-hospital setting, during operations, and even in the outpatient arena. The proper, and timely, acute management of WCT is contingent on the proper evaluation and diagnosis of the tachycardia. WCT, an arrhythmia with a QRS duration of over 120 ms, at a rate of over 100 beats per minute, can be due to either supraventricular tachycardia with aberrant conduction or due to ventricular tachycardia. The management of these two entities can vary considerably, especially if the patient presents without significant haemodynamic stability.


2021 ◽  
pp. 106689692110604
Author(s):  
Velaphi Glenda Makhubela ◽  
Moshawa Calvin Khaba

Breast masses in clinical practice are often investigated primarily for neoplastic conditions. Breast fungal infections are unusual, and few cases have been reported in the literature. The differential diagnosis for a breast mass should not be limited to neoplastic conditions as there are treatment implications. The correct diagnosis is associated with reduced and unwanted cases of surgical intervention. We describe 3 cases of cryptococcal infection of the breast that clinically masqueraded as breast malignancies.


Author(s):  
Gabriel Ignacio Aranalde

Clinical practice related to electrolytes and acid-base disorders is commonly approached as a single entity. Overlap syndromes are an uncommon clinical condition that must be considered as part of differential diagnosis when a patient is assessed. The coexistence of electrolytic disorders could make it difficult to interpret certain variables due to the influence of such disorders on the same variable, even in the opposite way. In this context, there are some tools that are very useful in order to establish the correct diagnosis. Thus, osmole excretion rate, tonicity balance, and estimation of electrolyte-free water balance should be considered along with other biochemical variables in order to increase the possibility to make a correct interpretation.


Author(s):  
Gyuldana Guseva

Correct diagnosis is the basis of timely and complete treatment. Sometimes situations arise in clinical practice when it seems that the diagnosis does not cause any doubts. However, experience shows that an erroneous diagnosis, even when it seems certain, is not uncommon.


ESC CardioMed ◽  
2018 ◽  
pp. 2054-2060
Author(s):  
Haran Burri

This chapter overviews the electrocardiographic diagnosis of various aetiologies of narrow complex tachycardia, as well as the criteria for distinguishing aberrant conduction from ventricular tachycardia in cases of wide QRS tachycardia. Clinical investigations for diagnosis of supraventricular tachycardia are also covered.


2015 ◽  
Vol 96 (3) ◽  
pp. 381-384 ◽  
Author(s):  
L R Altynbaeva ◽  
A F Gabdrakhmanova

Anatomic and topographic features of orbit structure and similar clinical symptoms in many diseases of different etiologies explain the complicated early diagnosis of orbital diseases. Therefore, the diagnostic algorithm for orbital masses is mainly based on instrumental diagnostic methods, especially radiology. Over the past 20-30 years, radiologic diagnosis of orbital tumors took a step forward thanks to the introducing such methods as computer tomography, magnetic resonance imaging and ultrasound into clinical practice. However, these methods of investigation, despite their great diagnostic possibilities, not always allow to obtain objective information on the tumor biology, tumor malignancy grade and characteristics of their metabolism. A significant step forward in this direction was the development and introduction of modern nuclear medicine techniques such as single photon emission computed tomography and positron emission (two-photon) tomography into clinical practice. These methods allow to visualize the functional processes in normal conditions and to perform a kind of non-invasive biopsy in case of neoplastic disorders. The use of nuclear medicine in oncology is based on hyperfixation of some radiopharmaceuticals in malignant tumors that provides important data for diagnosis and differential diagnosis based on the study of physiological and biological tumor features. The review highlights brief historical facts, as well as the results of using the most informative and safe radiopharmaceuticals. Literature analysis concludes that radionuclide tests at some point might be a method of choice for differential diagnosis of orbital masses.


Author(s):  
Haran Burri

This chapter overviews the electrocardiographic diagnosis of various aetiologies of narrow complex tachycardia, as well as the criteria for distinguishing aberrant conduction from ventricular tachycardia in cases of wide QRS tachycardia. Clinical investigations for diagnosis of supraventricular tachycardia are also covered.


2020 ◽  
Vol 8 ◽  
pp. 2050313X2094871
Author(s):  
Yuji Tada ◽  
Masatoshi Tagawa ◽  
Toshikazu Yusa ◽  
Mari Yatomi ◽  
Iwao Shimomura ◽  
...  

The differential diagnosis of reactive mesothelial hyperplasia and mesothelioma is difficult. We present a rare case of diffuse pleural thickening with thoracic contraction that was indistinguishable from mesothelioma. A 66-year-old woman with no history of asbestos exposure visited our hospital with a complaint of dyspnea. The clinical findings included circumferential pleural thickening on chest computed tomography image and a high concentration of hyaluronic acid in the pleural fluid. Pleural biopsies obtained by thoracoscopy under local anesthesia were pathologically consistent with mesothelioma, but the patient refused to take any kind of mesothelioma treatments. Four months later, she consented to a surgical pleural biopsy under general anesthesia to obtain larger tissue samples, which included typical proliferating polygonal cells positive for CAM5.2, calretinin, WT-1, D2-40, CK5/6, epithelial membrane antigen, and glucose transporter-1 and negative for carcinoembryonic antigen, BerEP4, and MOC31. The analysis was consistent with diagnosis of epithelioid mesothelioma. Fluorescence in situ hybridization, however, showed the presence of p16 gene, and the expression of BRCA1-associated protein-1 was detected by immunohistochemistry. Our final diagnosis was diffuse pleural thickening unrelated to asbestos exposure. Differential diagnosis of diffuse pleural thickening and malignant mesothelioma is thus difficult and routine immunohistochemical examinations are often insufficient for accurate diagnosis. Multiple diagnostic methods are required for correct diagnosis in a clinically marginal case.


Sign in / Sign up

Export Citation Format

Share Document