Niraj Mehta

Publications (6)56.52 Total impact

• Article: Explaining the unexplained causes of syncope: are we there yet?

  Niraj Mehta, Maria Zildany Pinheiro Tavora, Carlos A Morillo
  Journal of the American College of Cardiology 05/2011; 58(2):174-6. · 14.16 Impact Factor
• Article: An acute intracerebral vein thromboses in AIDS with protein C and S deficiency.

  Luis A Marcos, Ruckshanda Majid, Nabeel Hamzeh, Niraj Mehta, Miguel Escobar
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  ABSTRACT: A 22-year-old woman with advanced AIDS presented with altered mental status. A brain magnetic resonance imaging and angiogram showed extensive dural sinus thromboses of the sagittal and bilateral transverse sinuses. CD4 level was low (<15/mm3) and a significant low protein S (7%; normal 54-137%) and C (41%; normal 72-147%) levels were detected. No other hypercoagulable factors were identified. Successful treatment was done with heparin and plasminogen activator catheter-directed thrombolysis were administered. A variety of haematological abnormalities have been observed in human immunodeficiency virus infection. Advanced AIDS might be considered as an acquired hypercoagulable state.
  International Journal of STD & AIDS 01/2008; 19(1):59-61. · 1.09 Impact Factor
• Article: Serology- and biopsy-proven celiac disease in a patient with AIDS: case report.

  Amer A Alkhatib, Niraj Mehta, Russell R Broaddus
  Digestive Diseases and Sciences 06/2007; 52(6):1448-51. · 2.12 Impact Factor
• Article: Necrobacillosis without Lemierre's syndrome.

  Niraj Mehta, Gabriel Aisenberg
  The Lancet 06/2006; 367(9523):1702. · 38.28 Impact Factor
• Article: Useful clinical features for the selection of ideal patients with atrial fibrillation for mapping and catheter ablation.

  Niraj Mehta, Maria Zildany Pinheiro Távora, Noriaki Takeschita, Edilberto Figueiredo, Ricardo M Lourenço, Hélio Germiniani, Dalton Précoma
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  ABSTRACT: To identify useful clinical characteristics for selecting patients eligible for mapping and ablation of atrial fibrillation. We studied 9 patients with atrial fibrillation, without structural heart disease, associated with: 1) antiarrhythmic drugs, 2) symptoms of low cardiac output, and 3) intention to treat. Seven patients had paroxysmal atrial fibrillation and 2 had recurrent atrial fibrillation. In the 6 patients who underwent mapping (all had paroxysmal atrial fibrillation), catheter ablation was successfully carried out in superior pulmonary veins in 5 patients (the first 3 in the left superior pulmonary vein and the last 2 in the right superior pulmonary vein). One patient experienced a recurrence of atrial fibrillation after 10 days. We observed that patients who had short episodes of atrial fibrillation on 24-hour Holter monitoring before the procedure were those in whom mapping the focus of tachycardia was possible. Tachycardia was successfully suppressed in 4 of 6 patients. The cause of failure was due to the impossibility of maintaining sinus rhythm long enough for efficient mapping. Patients experiencing short episodes of atrial fibrillation during 24-hour Holter monitoring were the most eligible for mapping and ablation, with a final success rate of 66%, versus the global success rate of 44%. Patients with persistent atrial fibrillation were not good candidates for focal ablation.
  Arquivos Brasileiros de Cardiologia 02/2002; 78(1):1-16. · 0.88 Impact Factor
• Article: Useful clinical features for the selection of ideal patients with strial fibrillation for mapping and catheter ablation

  Niraj Mehta, Távora Maria Zildany Pinheiro, Noriaki Takeschita, Edilberto Figueiredo, Lourenço Ricardo M, Hélio Germiniani, Dalton Précoma
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  ABSTRACT: OBJECTIVE: To identify useful clinical characteristics for selecting patients eligible for mapping and ablation of atrial fibrillation. METHODS: We studied 9 patients with atrial fibrillation, without structural heart disease, associated with: 1) antiarrhythmic drugs, 2) symptoms of low cardiac output, and 3) intention to treat. Seven patients had paroxysmal atrial fibrillation and 2 had recurrent atrial fibrillation. RESULTS: In the 6 patients who underwent mapping (all had paroxysmal atrial fibrillation), catheter ablation was successfully carried out in superior pulmonary veins in 5 patients (the first 3 in the left superior pulmonary vein and the last 2 in the right superior pulmonary vein). One patient experienced a recurrence of atrial fibrillation after 10 days. We observed that patients who had short episodes of atrial fibrillation on 24-hour Holter monitoring before the procedure were those in whom mapping the focus of tachycardia was possible. Tachycardia was successfully suppressed in 4 of 6 patients. The cause of failure was due to the impossibility of maintaining sinus rhythm long enough for efficient mapping. CONCLUSION: Patients experiencing short episodes of atrial fibrillation during 24-hour Holter monitoring were the most eligible for mapping and ablation, with a final success rate of 66%, versus the global success rate of 44%. Patients with persistent atrial fibrillation were not good candidates for focal ablation.
  Arquivos Brasileiros de Cardiologia. 01/2002;