Breast Implants in A Woman Associated With Low-Voltage Electrocardiogram (ECG)

Abstract

Breast Implants (BIs) in women are associated with several Electrocardiogram (ECG) modifications. However, the association between BIs and low-voltage ECG has not been reported yet. A 44-year-old woman with a history of breast implant surgery visited our outpatient cardiology clinic complaining of atypical chest pain. A standard ECG showed low voltage in all precordial and most of the limb leads. Physical examination and echocardiography showed no pathology. Nothing other than BIs was found as a cause of low-voltage ECG in the woman. Breast implant-induced ECG modification can mislead clinicians resulting in diagnostic challenges and unnecessary tests. Low-voltage ECG is one of the modifications associated with BIs, which has not been reported before. A large prospective study is required to investigate the impacts of BIs on ECG thoroughly.

Quench–drive spectroscopy of cuprates

“…The linearized equations of motion obtained by removing higher-order terms in eqn (8) provide the same result of the nonlinear susceptibility calculated from the diagrammatic contributions of the density-density response including the RPA summation of the amplitude mode, responsible for the value of dD(u). The real part of the oscillation of the order parameter, namely the amplitude (Higgs) mode, reads in frequency space dD 0 ðuÞ ¼ À2…”

“…[1][2][3] Cuprates are the prototypical example of high-temperature superconductors, exhibiting a complex phase diagram as a function of doping and temperature, with a superconducting dome enriched by charge-density wave and pseudogap phases. 4 In fact, optimally doped Y-Bi2212 exhibits a superconducting phase below T c ¼ 97 K, and a pseudogap phase above T c and up to the temperature T* z 135 K. 1,[5][6][7][8] It has been argued that the pseudogap phase on top of the superconducting dome at optimal doping in unconventional superconductors is driven by the loss of phase coherence between the Cooper pairs, rather than the soening or vanishing of the pairing strength. [9][10][11] Therefore, in the pseudogap phase, the electrons are still paired, but their local phase is different from the global phase of the order parameter, which is lowered as a consequence.…”

Quench-drive spectroscopy of cuprates

“…Cuprates are the prototypical example of hightemperature superconductors, exhibiting a complex phase diagram as a function of doping and temperature, with a superconducting dome enriched by chargedensity wave and pseudogap phases [4]. In fact, optimally doped Y-Bi2212 exhibits a superconducting phase below T c = 97 K, and a pseudogap phase above T c and up to the temperature T * ≈ 135 K [1,[5][6][7][8]. It has been argued that the pseudogap phase on top of the superconducting dome at optimal doping in unconventional superconductors is driven by the loss of phase coherence between the Cooper pairs, rather than the softening or vanishing of the pairing strength [9][10][11].…”