[Action of antihistaminic agents in patients with various heart pathologies undergoing surgical treatment]

Clinical observations and experimental studies enabled the authors to show that sensitivity of patients with rheumatic heart diseases to antihistaminic drugs is not always constant. It depends on pH value of the medium and blood concentration of calcium ions. It is advisable to include antihistaminic drugs in combination with colloid and crystalloid blood substitutes with regard to pH of the medium into the complex of agents for pre-, intra- and postoperative medication.