2021
Spatial distribution of physiologic 12-lead QRS complex
HNATKOVA, Katerina, Irena ANDRŠOVÁ, Ondřej TOMAN, Peter SMETANA, Katharina M. HUSTER et. al.Základní údaje
Originální název
Spatial distribution of physiologic 12-lead QRS complex
Autoři
HNATKOVA, Katerina, Irena ANDRŠOVÁ (203 Česká republika, domácí), Ondřej TOMAN (203 Česká republika, domácí), Peter SMETANA, Katharina M. HUSTER, Martina ŠIŠÁKOVÁ (203 Česká republika, domácí), Petra BARTHEL, Tomáš NOVOTNÝ (203 Česká republika, domácí), Georg SCHMIDT a Marek MALÍK (203 Česká republika, garant)
Vydání
Nature Scientific Reports, London, NATURE RESEARCH, 2021, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.996
Kód RIV
RIV/00216224:14110/21:00121534
Organizační jednotka
Lékařská fakulta
UT WoS
000621911100003
Klíčová slova anglicky
QRS complex; Spatial distribution
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 5. 5. 2021 10:00, Mgr. Tereza Miškechová
Anotace
V originále
The normal physiologic range of QRS complex duration spans between 80 and 125 ms with known differences between females and males which cannot be explained by the anatomical variations of heart sizes. To investigate the reasons for the sex differences as well as for the wide range of normal values, a technology is proposed based on the singular value decomposition and on the separation of different orthogonal components of the QRS complex. This allows classification of the proportions of different components representing the 3-dimensional representation of the electrocardiographic signal as well as classification of components that go beyond the 3-dimensional representation and that correspond to the degree of intricate convolutions of the depolarisation sequence. The technology was applied to 382,019 individual 10-s ECG samples recorded in 639 healthy subjects (311 females and 328 males) aged 33.8 +/- 9.4 years. The analyses showed that QRS duration was mainly influenced by the proportions of the first two orthogonal components of the QRS complex. The first component demonstrated statistically significantly larger proportion of the total QRS power (expressed by the absolute area of the complex in all independent ECG leads) in females than in males (64.2 +/- 11.6% vs 59.7 +/- 11.9%, p < 0.00001-measured at resting heart rate of 60 beats per minute) while the second component demonstrated larger proportion of the QRS power in males compared to females (33.1 +/- 11.9% vs 29.6 +/- 11.4%, p < 0.001). The analysis also showed that the components attributable to localised depolarisation sequence abnormalities were significantly larger in males compared to females (2.85 +/- 1.08% vs 2.42 +/- 0.87%, p < 0.00001). In addition to the demonstration of the technology, the study concludes that the detailed convolution of the depolarisation waveform is individual, and that smoother and less intricate depolarisation propagation is the mechanism likely responsible for shorter QRS duration in females.Y