Âûñîêàÿ ÷àñòîòà êàðäèîâàñêóëÿðíûõ çàáîëåâàíèé ó áîëüíûõ ñ òåðìèíàëüíîé ïî÷å÷íîé íåäîñòàòî÷íîñòüþ ïðèâëåêëà âíèìàíèå èññëåäîâàòåëåé ê ïðîáëåìå ïîðàæåíèÿ ñåðäå÷íî-ñîñóäèñòîé ñèñòåìû ó áîëüíûõ ÕÁÏ íà ðàííèõ ñòàäèÿõ, ò.å. ïðè óìåðåííî ñíèæåííûõ çíà÷åíèÿõ ÑÊÔ (â ïðåäåëàõ 50-60 ìë/ ìèí), êîãäà óðîâåíü êðåàòèíèíà â ñûâîðîòêå êðîâè íîðìàëüíûé èëè íåçíà÷èòåëüíî ïîâûøåí [1]. Âçàèìîîáóñëîâëåííîñòü ïàòîëîãè÷åñêèõ ïðîöåññîâ ñåðäå÷íî-ñîñóäèñòîé ñèñòåìû è ïî÷åê, êëèíè÷åñêàÿ ïðåäñêàçóåìîñòü êîíå÷íûõ ðåçóëüòàòîâ, ïîçâîëÿþò ðàññìàòðèâàòü êàðäèîðåíàëüíûå âçàèìîîòíîøåíèÿ êàê íåïðåðûâíóþ öåïü ñîáûòèé, ñîñòàâëÿþùèõ ñâîåîáðàçíûé ïîðî÷íûé êðóã, ò.å. êàê êàðäèîðåíàëüíûé êîíòèíóóì [1].  êàðäèîðåíàëüíîì ñèíäðîìå ïðîñëåæèâàåòñÿ îò÷åòëèâàÿ ïàðàëëåëü ìåæäó ôîðìèðîâàíèåì è ïðîãðåññèðîâàíèåì êîðîíàðíîãî è íåêîðîíàðíîãî àòåðîñêëåðîçà è ãëîìåðóëñêëåðîçà ñ ïîâûøåíèåì ðèñêà ñåðäå÷íî-ñîñóäèñòûõ è ïî÷å÷íûõ îñëîæíåíèé. Âçàèìîîòíîøåíèÿ ïî÷êè ñ ïàòîëîãèåé ñåðäå÷íî-ñîñóäèñòîé ñèñòåìû íîñÿò ìíîãîãðàííûé õàðàêòåð è ÷àùå âñåãî âûñòðàèâàþòñÿ ïî ìåõàíèçìó îáðàòíîé ñâÿçè. Ñóùåñòâîâàíèå è ôóíêöèîíèðîâàíèå îáðàòíîé ñâÿçè, â ñâîþ î÷åðåäü, ïîääåðæèâàþò ôàê òîðû ðèñêà, äåéñòâóþùèå äâóíàïðàâëåíî è ïðèäàþùèå âñåé êàðäèîðåíàëüíîé ñèñòåìå ïàòîãåíåòè÷åñêóþ óñòîé÷èâîñòü. Ñèñòîëè÷åñêàÿ äèñôóíêöèÿ - ýòî íàðóøåíèå õàðàêòåðèçóþùååñÿ ñíèæåíèåì ñîêðàòèòåëüíîé ñïîñîáíîñòè ìèîêàðäà è âûðàæàåòñÿ â ñíèæåíèè ôðàêöèè âûáðîñà, ôðàêöèè óêîðî÷åíèÿ âîëîêîí ìèîêàðäà, óìåíüøåíèè óäàðíîãî è ìèíóòíîãî îáúåìà è äðóãèõ ïîêàçàòåëåé ñèñòîëè÷åñêîé ôóíêöèè ëåâîãî æåëóäî÷êà [2]. Äàííûå î ÷àñòîòå íàðóøåíèÿ ñèñòîëè÷åñêîé ôóíêöèè ëåâîãî æåëóäî÷êà ó äèàëèçíûõ áîëüíûõ âàðüèðóþò â øèðîêèõ ïðåäåëàõ. Íåðåäêî ïàðàìåòðû ñèñòîëè÷åñêîé ôóíêöèè ëåâîãî æåëóäî÷êà ïðè õðîíè÷åñêîé ïî÷å÷íîé íåäîñòàòî÷íîñòè (ÕÏÍ) ïðåâûøàþò òàêîâûå â ñðàâíèìûõ ãðóïïàõ áîëüíûõ ñ ñîõðàííîé ôóíêöèåé ïî÷åê. London G.M. è Fabiani F. [3] ñ÷èòàþò, ÷òî èíäóöèðóåìûå ÕÏÍ (àíåìèÿ) èëè ñâÿçàííûå ñ ïðîâåäåíèåì äèàëèçà (àðòåðèîâåíîçíàÿ ôèñòóëà) ôàêòîðû, ïðèâîäÿ ê õðîíè÷åñêîé ïåðåãðóçêå îáúåìîì è óìåíüøåíèþ ïîñòíàãðóçêè, ìîãóò óâåëè÷èâàòü, ñîãëàñíî ïðèíöèïó Ôðàíêà–Ñòàðëèíãà, ñîêðàòèìîñòü ìèîêàðäà. Íåêîòîðûå èññëåäîâàòåëè ñ÷èòàþò ñèñòîëè÷åñêóþ äèñôóíêöèþ íåõàðàêòåðíîé äëÿ äèàëèçíûõ áîëüíûõ [4,5]. Äðóãèå íàõîäÿò åå ó 36–62% óðåìè÷åñêèõ ïàöèåíòîâ [6,7].Ïî ìíåíèþ Palmer B.F. è Henrich W.L. [8], äàííûå î âûñîêîé ÷àñòîòå ñèñòîëè÷åñêîé äèñôóíêöèè ó áîëüíûõ ñ ÕÏÍ êàñàþòñÿ, ïðåæäå âñåãî, ëèö, èìåâøèõ ñåðäå÷íî-ñîñóäèñòûå íàðóøåíèÿ â ïðîøëîì. Åùå áîëåå 36 âïå÷àòëÿþùåå âëèÿíèå ôóíêöèè ïî÷åê íà ïðîãíîç áûëî îòìå÷åíî ó ëèö ñ èñõîäíîé ñåðäå÷íî-ñîñóäèñòîé ïàòîëîãèåé è äèñôóíêöèåé ëåâîãî æåëóäî÷êà (òàáë.1) [9-12]. Òàáëèöà 1. Âëèÿíèå ôóíêöèè ïî÷åê íà ÷àñòîòó ñåðäå÷íî-ñîñóäèñòûõ îñëîæíåíèé ó ëèö ñ äèñôóíêöèåé ëåâîãî æåëóäî÷êà Èññëåäîâàíèå SOLVD TRACE SAVE VALLIANT Ãîä ×èñëî ïàöèåíòîâ Îòíîøåíèå ðèñêîâ ÑÑ îñëîæíåíèé íà êàæäûå 10 ìë/ìèí ïàäåíèÿ ÑÊÔ 2001 2002 2003 2003 6635 6252 2184 14527 1,1 1,2 1,5 1,1 Ïðèìå÷àíèå:: SOLVD - The Studies Of Left Ventricular Dysfunction; TRACE – Trandolapril Cardiac Evalution; SAVE – Survival and Ventricular Enlargement; VALLIANT – Valsartan in Acute Myocardial Infarction. Âî âñåõ ÷åòûðåõ êðóïíûõ èññëåäîâàíèÿõ ñíèæåíèå ÑÊÔ íèæå 60 ìë/ìèí àññîöèèðîâàëîñü ñ âûñîêîé ëåòàëüíîñòüþ âñëåäñòâèå ñåðäå÷íî-ñîñóäèñòûõ îñëîæíåíèé, è ýòî íå çàâèñåëî îò äðóãèõ ñîïóòñòâóþùèõ çàáîëåâàíèé èëè ôàêòîðîâ [12]. Îäíàêî íàðóøåíèÿ ñîêðàòèòåëüíîé ñïîñîáíîñòè ìèîêàðäà ÷àñòî îáíàðóæèâàþò ó äåòåé ñ òåðìèíàëüíîé óðåìèåé, íå ñòðàäàâøèõ ñåðäå÷íî-ñîñóäèñòûìè çàáîëåâàíèÿìè [13,14].Êðàéíèì ïðîÿâëåíèåì ñèñòîëè÷åñêîé äèñôóíêöèè ÿâëÿåòñÿ çàñòîéíàÿ ñåðäå÷íàÿ íåäîñòàòî÷íîñòü [7]. Îíà âûÿâëÿåòñÿ ó 10–12% áîëüíûõ ñ ÕÏÍ è îáóñëîâëèâàåò äî 37% îáùåé ëåòàëüíîñòè íåäèàáåòè÷åñêèõ äèàëèçíûõ ïàöèåíòîâ [15].Ïðåäëîæåí ñïåöèàëüíûé òåðìèí “óðåìè÷åñêàÿ êàðäèîïàòèÿ”, ïðèìåíÿåìûé ê ïàöèåíòàì ñî çíà÷èòåëüíîé äèëàòàöèåé ñåðäå÷íûõ ïîëîñòåé, íèçêèì ñåðäå÷íûì âûáðîñîì, íîðìàëüíûì èëè íèçêèì ÀÄ, êîòîðûå ðåçèñòåíòíû ê ëþáûì ïîïûòêàì óëüòðàôèëüòðàöèè [16]. Îïðåäåëåíèå “óðåìè÷åñêèé” ñâèäåòåëüñòâóåò, ÷òî â äîïîëíåíèå ê îáùåïðèçíàííûì ôàêòîðàì òèïà ãèïåðòîíèè, àíåìèè, ïåðåãðóçêè îáúåìîì [7] â ãåíåçå çàñòîéíîé êàðäèîïàòèè ó äèàëèçíûõ áîëüíûõ îïðåäåëåííàÿ ðîëü îòâîäèòñÿ âîçäåéñòâèþ íà ìèîêàðä óðåìè÷åñêèõ òîêñèíîâ. Àâòîðû, ïðèäåðæèâàþùèåñÿ ïðîòèâîïîëîæíîé òî÷êè çðåíèÿ, ñ÷èòàþò, ÷òî ãåìîäèíàìè÷åñêàÿ ïåðåãðóçêà îáúåìîì è äàâëåíèåì â ïîëíîé ìåðå îáúÿñíÿåò ïàòîãåíåç óðåìè÷åñêîé êàðäèîïàòèè [17,18], è íàçûâàþò äèñêóññèþ ïî ïîâîäó òåðìèíà “óðåìè÷åñêèé” ñåìàíòè÷åñêîé [19]. íåêîòîðûõ ðàáîòàõ ñîîáùàåòñÿ, ÷òî êàðäèîìåãàëèþ íåðåäêî ìîæíî îáíàðóæèòü ó ïàöèåíòîâ, ñ÷èòàþùèõñÿ “õîðîøî êîíòðîëèðóå- ìûìè” [17]. London G.M. è ñîàâò. [20] îáíàðóæèëè, ÷òî äèàñòîëè÷åñêèå ðàçìåðû ëåâîãî æåëóäî÷êà ó äèàëèçíûõ ïàöèåíòîâ, õîòÿ è íàõîäÿòñÿ â ïðåäåëàõ íîðìû, âñå æå ïðåâûøàþò òàêîâûå â êîíòðîëüíîé ãðóïïå. Iannetti E. è Corpinteri G. [21] óêàçàëè íà ïîëîæèòåëüíóþ êîððåëÿöèîííóþ ñâÿçü ìåæäó îáúåìîì æèäêîñòè, óäàëÿåìîé âî âðåìÿ ÃÄ, è ñèñòîëè÷åñêîé ôóíêöèåé ëåâîãî æåëóäî÷êà.Ïðîáëåìà õðîíè÷åñêîé ãèïåðâîëåìèè àêöåíòèðóåòñÿ åùå è ïî òîé ïðè÷èíå, ÷òî, äîáèâøèñü åå êîððåêöèè, ÷àñòî óäàåòñÿ ñïðàâèòüñÿ ñ çàñòîéíîé êàðäèîïàòèåé. ßðêîå êëèíè÷åñêîå íàáëþäåíèå Toz Í. è ñîàâò. [14] äåìîíñòðèðóåò ïîëíóþ îáðàòèìîñòü òÿæåëîé óðåìè÷åñêîé êàðäèîïàòèè ó ãåìîäèàëèçíîé ïàöèåíòêè ïîñëå íàçíà÷åíèÿ åé äîïîëíèòåëüíîé óëüòðàôèëüòðàöèè.Ïðè íàëè÷èè çíà÷èòåëüíîé äèëàòàöèè ëåâîãî æåëóäî÷êà è åãî 1. 2. 3. 4. 9. 10. 11. 12. 13. 14. 16. 20. 21. íèçêîé ñîêðàòèòåëüíîé ñïîñîáíîñòè ñðåäíÿÿ ïðîäîëæèòåëüíîñòü æèçíè áîëüíûõ ñîñòàâëÿåò 7,8 ìåñ. [22]. Ê ýòîìó ñëåäóåò äîáàâèòü, ÷òî ó ïàöèåíòîâ íà ÃÄ íèçêàÿ ñîêðàòèòåëüíàÿ ñïîñîáíîñòü ìèîêàðäà ÿâëÿåòñÿ îäíèì èç ôàêòîðîâ ðèñêà ðàçâèòèÿ èíòðàäèàëèçíîé ãèïîòåíçèè [23,24]. Òàêèì îáðàçîì, áîëüøèíñòâî èç èçâåñòíûõ ñåðäå÷íî-ñîñóäèñòûõ ôàêòîðîâ ðèñêà îäíîâðåìåííî ÿâëÿþòñÿ è ôàêòîðàìè ðèñêà âîçíèêíîâåíèÿ õðîíè÷åñêîé áîëåçíè ïî÷åê (ÕÏÁ).  ñâÿçè ñ ýòèì, àêòóàëüíûì ÿâëÿåòñÿ ïðîôèëàêòèêà ÕÁÏ ó ëèö ñ ñåðäå÷íî-ñîñóäèñòîé ïàòîëîãèåé è ÑÑÇ ó ëèö ñ ÕÁÏ, ÷òî áóäåò ñïîñîáñòâîâàòü óëó÷øåíèþ âûæèâàåìîñòè, êà÷åñòâà æèçíè è ñíèæåíèþ çàòðàò íà ëå÷åíèå ïàöèåíòîâ ñ ðàçëè÷íûìè îñëîæíåíèÿìè êàê ñî ñòîðîíû ïî÷åê, òàê è ñåðäå÷íî-ñîñóäèñòîé ñèñòåìû. Ñìèðíîâ À.Â., Äîáðîíðàâîâ Â.À., Êàþêîâ È.Ã. Êàðäèî-ðåíàëüíûé êîíòèíóóì: ïàòîãåíåòè÷åñêèå îñíîâû ïðåâåíòèâíîé íåôðîëîãèè íåôðîëîãèÿ, 2005, (9);3: 7-15 Ðûáàêîâà Ì.Ê. Îöåíêà ñèñòîëè÷åñêîé ôóíêöèè ëåâîãî è ïðàâîãî æåëóäî÷êîâ. Êëèíè÷åñêîå ðóêîâîäñòâî ïî óëüòðàçâóêîâîé äèàãíîñòèêå. Ò. 5. Ïîä ðåä. Ìèòüêîâà Â.Â., Ñàíäðèêîâà Â.À. Ì.: Âèäàð, 1998; 119–137. London J.M., Fabiani F. Left ventricular dysfunction in end-stage renal disease: echocardiographic insights. Cardiac dysfunction in chronic uremia. Eds. P.S. Parfrey, J.D. Harnett // Norwell. 1992. V. 8. P. 117–137. Covic A., Goldsmith D.J.A., Georgescu G. et al. Echocardiographic findings in long-term, long-hour hemodialysis patients // Clin. Nephrol. 1996. V. 45. 2. P. 104–110.5. Raj D.S.C., Mello S., Somiah S. et al. Left ventricular morphology in chronic renal failure by echocardiography // Renal Fail. 1997. V. 19. 6. P. 799–806.6. Greaves S.C., Gamble G.D., Collins J.F. et al. Determinants of left ventricular hypertrophy and systolic dysfunction in chronic renal failure // Am. J. Kidney Dis. 1994. V. 24. 5. Ð. 768–776.7. Harnett J.D., Foley R.N., Kent G.M. et al. Congestive heart failure in dialysis patients: prevalence, incidence, prognosis and risk factors // Kidney Int. 1995. V. 47. P. 884–890.8. Palmer B.F., Henrich W.L. The effect of dialysis of left ventricular contractility. Cardiac dysfunction in chronic uremia. Eds. P.S. Parfey, J.D. Harnett // Ibid. Chapt. V. 11. P. 172–185. Al Ahmad A, Rand WM, Manjunath g et al. Reduced kidney function and anemia as risk factors for mortality in patients with left ventricular dysfunction. J Am Cool Cardiol 2001; 38: 955-962 Sorensen CR, Brendorp Brask-Madsen C et al. The prognostic importance of the creatinine clearance after acute myocardial infarction. Eur Heart J 2002; 23: 948-952 Anavekar NS, Me Murray JV, Velazguez EJ et al. 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Cardiovascular changes in chronic hemodialysis patients // Kidney Int. 1983. V. 24. P. 371–376.18. Dorhout Mees E.J. Volaemia and blood pressure in renal failure: have old truth been forgotten? // Nephrol. Dial. Transplant. 1995. V. 10. P. 1297–1298.19. Hung J., Harris P.J., Uren R.F. et al. Uremic cardiomyopathy: effect of hemodialysis on left ventricular function in end-stage renal failure // N. Engl. J. Med. 1980. V. 302. P. 547–551. London G.M., Marchais S.J., Guerin A.P. et al. Cardiac hypertrophy and arterial alterations in end-stage renal disease: hemodynamic factors // Kidney Int. 1993. V. 43. P. 42–49. Iannetti E., Corpinteri G. Cardiac function and extracellular water relationship in hemodialysis // J. Nephrol. 1996. V. 9. 6. P. 295–298.22. Weinrauch L.A., D’Elia J.A., Gleason R.E. et al. Usefulness of left ventricular size and function in predicting survival in chronic dialysis patients with diabetes mellitus // Am. J. Cardiol. 1992. V. 70. 3. P. 300–303.23. 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