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Rhinomanometry in myocardial infarction

J M Montserrat-Viladiu

    Rhinology
    |March 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Mid-cycle rest (M.C.R.) in nasal airflow is more common in myocardial infarction patients. This study found M.C.R. in over 50% of post-myocardial infarction subjects, indicating potential cardiac links.

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    Area of Science:

    • Cardiology
    • Respiratory Medicine
    • Medical Physiology

    Background:

    • Nasal airflow patterns can be assessed using rhinomanometry.
    • A mid-cycle rest (M.C.R.) phenomenon has been observed in rhinomanometry curves.
    • The clinical significance of M.C.R., particularly in relation to cardiac conditions, requires further investigation.

    Purpose of the Study:

    • To determine the frequency of mid-cycle rest (M.C.R.) in nasal airflow.
    • To compare M.C.R. occurrence in normal subjects versus those with a history of myocardial infarction.
    • To assess M.C.R. in individuals without cardiac issues but potentially other conditions.

    Main Methods:

    • Rhinomanometry was conducted on three distinct subject groups.
    • Group 1: 32 healthy individuals with no respiratory or cardiac problems.

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  • Group 2: 44 individuals with a history of myocardial infarction.
  • Group 3: 34 individuals without cardiac problems.

    • Main Results:

    • 50-60% of subjects in the myocardial infarction group (Group 2) and the no-cardiac-problems group (Group 3) exhibited poor nasal respiration.
    • No M.C.R. was observed in any of the healthy subjects (Group 1).
    • Over 50% of subjects in Group 2 and less than 50% in Group 3 showed M.C.R., with statistical analysis (chi-squared test) yielding x²=5.34.

    Conclusions:

    • The presence of mid-cycle rest in nasal airflow appears significantly more frequent in individuals with a history of myocardial infarction.
    • Poor nasal respiration is prevalent in both post-myocardial infarction patients and individuals without cardiac issues.
    • The findings suggest a potential association between myocardial infarction and mid-cycle rest in rhinomanometry, warranting further research.