Heart Block Complicating Acute Inferior Wall Myocardial Infarction

Gupta, Prem K.; Lichstein, Edgar; Chadda, Kul D.

doi:10.1378/chest.69.5.599

Cited by 30 publications

(5 citation statements)

References 33 publications

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“…Collateral blood flow to the AV node. 3 Dan Feigel, in his study, found that in early AV block (presenting within 6 hours of the first sign of infarction) atropine either abolished AV block completely or caused a marked acceleration of ventricular escape rhythm. The probable mechanism suggested for these groups of patient was increased vagal tone.…”

Section: Disscusionmentioning

confidence: 97%

“…2 As per one report, the mean in-hospital mortality for patients with third degree AV block was 29%. 3 Malla RR and Sayami A conducted a cross-sectional study of patient with IWMI with and without RVMI to compare in-hospital complications and mortality in both groups. They found in-hospital complications as cardiogenic shock, complete AV block and junctional rhythm were significantly higher in IWMI when associated with right ventricular infarction.…”

Section: Disscusionmentioning

confidence: 99%

See 1 more Smart Citation

A case of resolution of inferior wall myocardial infarction and varying degrees of atrioventricular block: a case report

et al. 2015

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Section: Disscusionmentioning

confidence: 97%

Section: Disscusionmentioning

confidence: 99%

A case of resolution of inferior wall myocardial infarction and varying degrees of atrioventricular block: a case report

et al. 2015

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“…It was also found that although patients with initial anterior wall myocardial infarction had a relatively unfavorable early outcome, the late outcome appeared to be unaffected 7 . In addition, it was shown that the site of the infarct can be influenced by early outcomes but not long-term prognosis 7 , Inferior myocardial infarction causing substantial myocardial damage usually is large and often includes right ventricular involvement, hypotension, bradycardia, heart block, and cardiogenic shock., the factors that influences long-term prognosis 8,9 . However, an important question remains about the differences in the severity and extension of coronary arteries involvement in the two types of inferior and anterior wall infarction.…”

Section: S893mentioning

confidence: 99%

Clinical Outcome of Patients Admitted With Acute Anterior Versus Acute Inferior Wall Myocardial Infarction

Khan

Samore

et al. 2021

PAFMJ

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Objective: To determine the clinical outcome of patients admitted with acute anterior versus acute inferior wall myocardial infarction. Study Design: Comparative cross-sectional study. Place and Duration of Study: The study was conducted in emergency departments and adult cardiology wards of Armed Forces Institute of Cardiology/National Institute of Heart Diseases, from Aug 2019 to Nov 2019. Methodology: This study was conducted on 340 patients (208 patients with Anterior wall myocardial infarction and 132 patients with inferior wall MI who presented with Acute ST-Elevation MI) to emergency department of Armed Forces Institute of Cardiology/National Institute of Heart Disease during specified period. Outcome was calculated using Electrocardiogram, Two-dimensional transthoracic echocardiogram, Troponin-I, baseline investigations and coro angiography Data was entered and analyzed with SPSS-23. Results: Mean age was 59.38 ± 12.91 years in each group. In clinical symptoms chest pain was highest n=255 (71.4%) followed by diaphoresis 55 (15.4%) and breathlessness 51 (14.3%). The most common complications in patients with inferior wall MI were brady arrhythmia 8 (2.3%) whereas left ventricular failure 41 (12.1%) was more prevalent in patients with anterior wall MI after TVCAD. The results of cardiogenic shock 5 (1.5%),ventricular tachycardia 3 (0.8%) in inferior wall myocardial infarction were comparative to the results of cardiogenic shock 18 (5.3%) ventricular tachycardia 2 (0.5%) in anterior wall myocardial infarction. The number of stable patients was 91 (43.7%) in Anterior wall myocardial infarction and 51 (38.6%) in inferior wall MI. Conclusion: The study shows the comparative clinical outcome of anterior wall myocardial infarction versus inferior wall myocardial infarction.

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“…Atrioventricular (AV) conduction disor ders occur more frequently in patients with acute inferior myocardial infarction (MI) than in those with anterior MI [1], Further, patients whose acute inferior MI is compli cated by an AV block have a higher mortality than those in whom no heart block occurs [2,3]. However, it is unclear whether the early occurrence of AV block confers a worse prognosis than when it appears late after the onset of acute MI [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Significance of Early and Late Atrioventricular Block in Patients with a Q Wave Acute Inferior Myocardial Infarction

Jaradah

Bhatnagar

Al-Yusuf

1989

Med Principles Pract

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One hundred and seventeen consecutive patients (mean age 55 years) with Q wave acute inferior myocardial infarction (MI) were studied. Of these, 62 developed atrioventricular (AV) conduction disorders (group I) and 55 did not (group II). The AV block occurred early (within 24 h) in 38 (Ia) and later in 24 patients (Ib). We report the in-hospital morbidity and mortality of these acute MI patients. There were no significant differences between group Ia and Ib patients with respect to coronary artery disease risk factors. Right ventricular MI was diagnosed in 14 (36%) and 7 (29%) group Ia and Ib patients, respectively (p = NS), and in 5 (9%) of group II patients. Mean peak serum creatine kinase was highest in group Ia patients (2,403 IU/1) compared to 1,860 IU/1 in group Ib and 1,369 IU/1 in group II. There was cardiogenic shock in 11 patients with 10 deaths in group Ia, while in group II, 2 patients had cardiogenic shock and 3 died (p < 0.01). Only mortality was significantly higher in group Ia compared to group Ib (p < 0.05). Cardiogenic shock was twice the rate in group Ib (n = 4) compared to group II (n = 2; p < 0.05), but there was no difference in mortality. A complete AV block was present in 32 patients (84 %), with 25 (66 %) requiring a pacemaker in group Ia, compared to 9 (37%), with 8 (33%) requiring a pacemaker, in group Ib (p < 0.01). We conclude that prognosis is poor with the appearance of an AV block ≤ 24 h after Q wave acute inferior MI, although mortality in patients with late AV block ( > 24 h) remains similar to those without this complication. Cardiogenic shock may be higher in patients with AV block ≤ 24 h.

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Heart Block Complicating Acute Inferior Wall Myocardial Infarction

Cited by 30 publications

References 33 publications

A case of resolution of inferior wall myocardial infarction and varying degrees of atrioventricular block: a case report

A case of resolution of inferior wall myocardial infarction and varying degrees of atrioventricular block: a case report

Clinical Outcome of Patients Admitted With Acute Anterior Versus Acute Inferior Wall Myocardial Infarction

Significance of Early and Late Atrioventricular Block in Patients with a Q Wave Acute Inferior Myocardial Infarction

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