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Original Research 


Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction

Rasoul Azarfarin, Jahanbakhsh Samadikhah, Azin Alizadeh Asl, Eisa Bilehjani.


Abstract
Objective: We sought to examine the association between preinfarction angina and a lower risk of right
ventricular infarction (RVMI) in patients with first acute inferior myocardial infarction (MI).
Methods: One hundred seventy patients who were admitted to cardiac care unit after first acute inferior
MI with ST segment elevation and symptom duration < 12 hours and received thrombolysis were studied.
Preinfarction angina within 24 hours prior to MI was present in 62 patients (Angina group) whereas the
remaining 108 patients (Cohort group) had no chest pain preceding acute MI. The course of the inhospital
phase of MI was analyzed. The outcomes studied were presence of RVMI together with inferior
MI, major complications and in-hospital mortality.
Results: In angina group 15 (24.2%) patients had RVMI, while in control group 70 (64.8%) patients
suffered from RVMI (adjusted odds ratio‚0.32%, confidence interval‚0.09 to 0.86 P=0.01). Absence of
preinfarction angina was predictor of development of RVMI (P< 0.001)‚ complete atrioventricular block;
(P< 0.01)‚ cardiogenic shock (P< 0.001) and in-hospital mortality (P = 0.02).
Conclusion: Patients with Preinfarction angina‚ occurring within 24 hours of acute MI‚ have a lower rate
of right ventricular infarction and better in-hospital outcome than patient without antecedent angina.
These results may be attributed to the protective effects of ischemic preconditioning. (Rawal Med J
2008;33:43-46).

Key words: Preinfarction Angina, right ventricular myocardial infarction, outcome.


 
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How to Cite this Article
Pubmed Style

Azarfarin R, Samadikhah J, Asl AA, Bilehjani E. Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. RMJ. 2008; 33(1): 44-47.

Web Style

Azarfarin R, Samadikhah J, Asl AA, Bilehjani E. Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. https://www.rmj.org.pk/?mno=7484 [Access: October 30, 2025].

AMA (American Medical Association) Style

Azarfarin R, Samadikhah J, Asl AA, Bilehjani E. Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. RMJ. 2008; 33(1): 44-47.


Vancouver/ICMJE Style

Azarfarin R, Samadikhah J, Asl AA, Bilehjani E. Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. RMJ. (2008), [cited October 30, 2025]; 33(1): 44-47.


Harvard Style

Azarfarin, R., Samadikhah, . J., Asl, . A. A. & Bilehjani, . E. (2008) Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. RMJ, 33 (1), 44-47.


Turabian Style

Azarfarin, Rasoul, Jahanbakhsh Samadikhah, Azin Alizadeh Asl, and Eisa Bilehjani. 2008. Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. Rawal Medical Journal, 33 (1), 44-47.


Chicago Style

Azarfarin, Rasoul, Jahanbakhsh Samadikhah, Azin Alizadeh Asl, and Eisa Bilehjani. "Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction." Rawal Medical Journal 33 (2008), 44-47.


MLA (The Modern Language Association) Style

Azarfarin, Rasoul, Jahanbakhsh Samadikhah, Azin Alizadeh Asl, and Eisa Bilehjani. "Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction." Rawal Medical Journal 33.1 (2008), 44-47. Print.


APA (American Psychological Association) Style

Azarfarin, R., Samadikhah, . J., Asl, . A. A. & Bilehjani, . E. (2008) Preinfarction Angina Associates with Absence of Right Ventricular Infarction after First Acute Inferior Myocardial Infarction. Rawal Medical Journal, 33 (1), 44-47.


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