Avtor/Urednik		Kociper, Tanja; Križmarić, Miljenko
Naslov		Deep breathing test and respiratory sinus arrhythmia for evaluation of autonomic nervous system
Prevedeni naslov		Ocena avtonomnega živčevja s testom globokega dihanja in respiratorne sinusne aritmije
Tip		članek
Vir		In: Zbornik predavanj Maribor : Fakulteta za zdravstvene vede
Leto izdaje		2016
Obseg		str. 250-252
Jezik		slv
Abstrakt		Uvod Variabilnost frekvence srca (HRV) je posledica delovanja parasimpatičnega in simpatičnega živčevja. Test z globokim dihanjem (DBT) uporabimo za merjenje kardiovagalne oziroma parasimpatične funkcije srca. Metode V kvantitativni študiji so zdravi preiskovanci globoko dihali s frekvenco 6 vdihov min-1 (5 s je trajal tako vdih kot izdih). Za kontrolo dihanja smo uporabili računalniški metronom. Ocena avtonomnega živčevja je temeljila na analizi HRV v časovni domeni in frekvenčni domeni. Izračunali smo enkratni iztis srca (SV), minutni iztis srca (CO), razmerje med najdaljšim in najkrajšim RR intervalom (E:I razmerje) med šestimi cikli. Rezultati Pri zdravih preiskovancih se je SV zmanjšal med vdihom in povečal med izdihom. Ko primerjamo SV med normalnim dihanjem (SV=69%2 mL), ugotovimo statistično višje vrednosti SV med testom globokega dihanja (SV=78%5 mL) (p<0.001). Diskusija in zaključek Zaključimo da DBT vodi k povečanju SV. Frekvence ritmov dihanja se prenašajo na spremembe parametrov hemodinamike.Introduction Heart rate variability (HRV) is a reflection of the interaction between parasympathetic and sympathetic autonomic nervous system. The deep breathing test (DBT) is a measure of cardiovagal or parasympathetic cardiac function. Methods In quantitative study, the healthy subjects are asked to breathe at rate 6 breaths min-1 (with 5 s of inhalation and 5 s of exhalation per breath). For breathing control we used an electronic metronome. The evaluation of autonomic nervous system (ANS) activity was based on the time and frequency domain of HRV at rest and during DBT. We calculated stroke volume (SV), cardiac output (CO), the ratio of the longest R-R interval during expiration and the shortest R-R interval during inspiration from 6 cycles (E:I ratio). Results In healthy subjects, SV decreased during inspiration and increased during expiration. When compared with the SV during normal breathing (SV=69%2 mL), mean SV change during deep breathing was higher (SV=78%5 mL) (p<0.001). Discussion and conclusion We conclude that DBT lead to an increased SV. Respiratory-frequency rhythms are translated into changes of haemodynamic parameters.
Proste vsebinske oznake		testi avtonomnega živčevja testi globokega dihanja respiratorna sinusna aritmija autonomic nervous system tersting deep breathingv test respiratory sinus arrhythmia