Heart failure & cardiomyopathies

Noninvasive Hemodynamic Assessment by a Sensor Patch: The PATCHWRK (PortAble TeCHnology for Wireless caRdiomyopathy tracKing) Study

JACC AdvPublished Prospective enrolment with simultaneous SANSA patch recording and echo

Authors' conclusion

SANSA patch monitoring accurately measures key cardiac timing intervals to within the variability observed between echo views. As these intervals have prognostic value, SANSA-based longitudinal monitoring may facilitate early cardiomyopathy detection.

Study context

Population
Patients undergoing echo46 of the 50 patients (92%) had analyzable data
Participants
50 patients
Exposure
Agreement between echo and SANSA estimates, compared with agreement between echo views
Outcome
DFT, PEP, and LVET

Main finding

As reported in the abstract

GroupDiastolic filling time (DFT)Pre-ejection period (PEP)Left ventricular ejection time (LVET)
Echo416 ± 139108 ± 32300 ± 36
SANSA431 ± 13591 ± 35285 ± 43

Diastolic filling time (DFT)

Echo416 ± 139
SANSA431 ± 135

Pre-ejection period (PEP)

Echo108 ± 32
SANSA91 ± 35

Left ventricular ejection time (LVET)

Echo300 ± 36
SANSA285 ± 43

Observational data: associations, not effects.

Further findings

Intraclass correlation coefficients (ICC) for SANSA vs echo

DFT
0.92
PEP
0.74
LVET
0.76

ICC for tissue Doppler imaging vs pulsed wave estimates

DFT
0.93
PEP
0.83
LVET
0.69

Baseline characteristics

Mean ejection fraction
53% ± 8%
Left bundle branch block
13 patients (26%)

Original publication

Noninvasive Hemodynamic Assessment by a Sensor Patch: The PATCHWRK (PortAble TeCHnology for Wireless caRdiomyopathy tracKing) Study. JACC Adv. Published 28 April 2025. doi:10.1016/j.jacadv.2025.101753

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