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Page 4 of 11                                            Yaroustovsky et al. Vessel Plus 2019;3:9  I  http://dx.doi.org/10.20517/2574-1209.2019.02

               Table 1. Clinical characteristics of patients before H.E.L.P.-apheresis therapy
                                              The manifestations
                      The disorders of lipid metabolism      Revascularization
                Patients                       of atherosclerosis              Drug therapy    Comorbidity
                            (with drug therapy)                procedure
                                                  (vessels)
                No.1  Hypercholesterolemia (LDL > 4   Coronary  Coronary artery   Statin (atorvastatin 10)  Hypertensive
                      mmol/L, atherogenic index > 4)        stenting (n = 2)   antiplatelet agents   disease
                      hypertriglyceridemia (> 4 mmol/L),                  (clopidogrel, acetylsalicylic  Type 1 diabetes,
                      hyperLp(a)emia (> 60 mg/dL)                         acid), angiotensin receptor  angiopathy,
                                                                          inhibitors, β-blockers,   retinopathy,
                                                                          L-thyroxine        nephropathy.
                                                                                             Hypothyroidism
                No.2  Hypercholesterolemia (LDL > 4   Coronary  Coronary artery   Statin (rosuvastatin 10)  Iron deficiency
                      mmol/L, atherogenic index > 5.5)  Brachiocephalic  stenting (n = 6)   antiplatelet agents   anemia
                      hypefibrinogenemia (> 4 g/L),                       (clopidogrel, acetylsalicylic  Vascular
                      hyperLp(a)emia (> 200 mg/dL)                        acid)              calcification
                                                                          β-blockers
                No.3  Hypercholesterolemia (LDL > 3.5   Coronary  1. Coronary artery   Statins (rosuvastatin 10),   Chronic kidney
                      mmol/L, atherogenic index > 5.5),  Brachiocephalic  stenting (n = 2);  antiplatelets (aspirin,   disease, after renal
                      hypefibrinogenemia (> 4.5 g/L),   Femoral  2. Femoral-popliteal  xarelto, clopidogrel), ACE   transplantation
                      hyperLp(a)emia (> 60 mg/dL)           bypass        inhibitors, CA antagonists,  Hypertensive
                                                                          cytostatics        disease
                                                                                             Iron deficiency
                                                                                             anemia
                                                                                             Vascular
                                                                                             calcification
               LDL: low density lipoprotein

               ultrafiltration can be applied (up to 600 mL per session). Up to 4000 mL of plasma can be treated during one
               session; it corresponds approximately to one plasma volume circulating in an adult. H.E.L.P.-therapy was
               performed on Plasmat Futura (B|Braun, Germany), which is easy to use and safe to apply. Circuit preparation
               and reinfusion are automated.


               Cascade lipid-filtration is based on the separation (by filtration) on membrane plasma filters with different
               permeability capacities. It is a consecutive cascade technique affecting specific range of substances with
               the principle of double-filtration plasmapheresis. First, blood is separated from red blood cells when
               passing through the plasma filter, and then rheofilter is used for targeted specific elimination of substances.
               Rheofilters with different permeability are chosen depending on the aim of the treatment. For lipid apheresis
               techniques, extracorporeal circuit should contain the rheofilter with permeability for substances, whose
               molecular weight is less than the weight of IgG (< 150000D). After passing through the rheofilter, plasma
               filtrate containing IgG, HDL and other substations of plasma with lower weight molecules, is returned to
               the patient with the red blood cells. High weight molecules (LDL, Lp(a), VLDL, triglycerides, chylomicrons,
               fibrinogen) remain in the rheofilter. Treated plasma volume was 3,500-4,500 mL per session. Cascade lipid-
               filtration was performed on Plasauto (Asahi, Japan).

               In our study we chose cubital veins as vascular access, and no problems with the satisfactory blood flow were
               noted. We evaluated the clinical and laboratory indications before and after the session.

               Statistical analyses were performed with IBM SPSS statistics for Windows (Mann-Whitney U test, P values
               less than 0.05). The data are expressed as the median and 25th-75th percentiles.


               RESULTS
               We performed 166 sessions of H.E.L.P.-apheresis and cascade lipid-filtration for 6 patients with
               cardiovascular diseases. The procedure frequency was once per 3-4 weeks. No side effects were detected in
               the patients during the study (allergic reactions, bleeding, etc.). No circuit thrombosis was observed. The
               interviewed patients observed significant improvement of the clinical state. New acute cardiovascular events
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