Unitary Structure of the QCD Sum Rules and KYN and KY\Xi Couplings

New relations between QCD Borel sum rules for strong coupling constants of K-mesons to baryons are derived. It is shown that starting from the sum rule for the coupling constants $g_{\pi \mathrm{\Sigma }\mathrm{\Sigma }}$ and $g_{\pi \mathrm{\Sigma }\mathrm{\Lambda }}$ it is straightforward to obtain corresponding sum rules for the $g_{KYN}$, $g_{K Y \Xi}$couplings,$Y=\Sigma,\Lambda$.