METHOD FOR DIAGNOSING FUNCTIONAL STATE OF PATIENTS SUFFERING FROM CHRONIC CARDIAC INSUFFICIENCY Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves measuring end diastolic size EDS and end systolic size ESS of the left ventricle. Conditionally constant value of these factors are to be determined from formulas: EDS(M_EDS)=11.4-lnTV₆, where TV₆ is the 6 min test value. Difference between real EDS and ESS values and their conditionally constant values M is to be found. The value of M is compared to standard deviations for EDS - 0.52(σ_R1) and ESS - 0.45(σ_R2) to establish favorable functional state in EDS M±(σ_R2), ESS M±(σ_R1) cases; disharmonic functional state in EDS from M-1σ_R2 to M-2σ_R2, ESS M±1σ_R1 or M+2σ_R1; unfavorable functional state in EDS from M-2.1σ_R2 to M-3σ_R2 and more, ESS M±1σ_R1 or from M+1σ_R1 to M+2σ_R1 and more; unfavorable worsening functional state in EDS from M+1.1σ_R2 to M+2σ_R2 and more, ESS M±1σ_R1 or M±2σ_R1; extremely unfavorable functional state in EDS from M+2.1σ_R2 to M+3σ_R2 and more, ESS M±1σ_R1 or M±1.1σ_R1 to M±2σ_R1 and more.

EFFECT: high accuracy and reliability of diagnosis.

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