Pulse Signal Acquisition in Patients With Heart Failure

NCT07376993 | Active Not Recruiting

• 2 other identifiers: 2022-2338MOE-MOE2020-TIF-0005
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

Heart Failure (HF) is usually a chronic condition that gradually gets worse. The heart muscle becomes weaker and has trouble pumping blood to nourish the cells in human body. General symptoms are breathlessness, fatigue, ankle swelling. Accurate and timely diagnosis is crucial to ensure patients receive appropriate treatment. Patients often present to primary care clinicians, however diagnosis by primary care clinicians is inaccurate as symptoms and signs commonly overlap with other conditions. Only 26% of patients with a suspected HF have a confirmed diagnosis after formal investigation according to diagnostic criteria. There is a strong demand to develop an accurate, easy-to-use, costeffective device to detect HF in primary clinics or even by patients themselves before it is too late to modify the natural history of the disease. TCM palpation provides a simple, cheap, and non-invasive approach for diagnosis and evaluation of the severity of HF, and does not involve use of expensive equipment. There are several specific pulse patterns associated with the clinical manifestation of HF. One of the project collaborators, a TCM physician with a PhD in Chinese Medicine, explained that patients with HF usually have alternating pulse strengths, strong pulse and subsequent weak pulses. The various degrees of severity can be readily manifested as Jiemai, Cumai, and Daimai on the pulse palpation. Based on the investigators' preliminary sensor test results, these pulse features can be easily detected using a micro tubular epidermal sensor, likewise developed by the investigators. Therefore, the investigators propose to use their micro tubular epidermal sensor to develop a TCM pulse analyser, which can be used by primary care clinicians and patient themselves to detect HF in a timely and accurate manner.

Conditions

Heart Failure

Outcome Measures

Primary Outcomes (2)

• AI-developed Heart Failure detection algorithm

  To develop pulse pattern feature extraction, selection, and classification models using AI approaches with a premier focus on HF detection, based on TCM theory.

  On the day of enrollment

• Pulse data acquisition from HF patients and non-HF people

  To collect pulse data from HF patients and non-HF people to train and test the machine learning models developed based on AI methods.

  On the day of enrollment

Study Arms (1)

Intervention

EXPERIMENTAL

Pulse signal measurement using measurement device

Device: Pulse Measurement

Interventions

Pulse Measurement DEVICE

TCM pulse signal data will be collected using project group developed pulse data collector, the collected TCM pulse signal is visible on the collector display screen. Project staff will place the pulse collector cuff on the wrist of the participant. During the process, the airbag in the cuff will be inflated with air several times to press the pressure sensor against participants' wrist and deflated several times to release the pressure. Under different airbag pressure, the TCM pulse signal from different depths (Fu, Zhong, and Chen) against the wrist will be collected. During the test, the project staff will move the cuff along the wrist to collect the TCM pulse signal from different wrist positions (Cun, Guan, and Chi) according to TCM theory.

Intervention

Eligibility Criteria

• Age: 35 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Age 35 years and above.
• The recruited patients should have been diagnosed by NHCS's Doctor in charge with HF.
• Ability to provide informed consent.

You may not qualify if:

• \- Pregnant Women as their TCM pulse signal maybe different from normal (non-pregnant) time.

Sponsors & Collaborators

• National Heart Centre Singapore: lead
• Temasek Polytechnic, Singapore: collaborator

Study Sites (1)

National Heart Centre Singapore

Singapore, 169609, Singapore

Location

MeSH Terms

Conditions

Heart Failure

Condition Hierarchy (Ancestors)

Heart Diseases; Cardiovascular Diseases

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: SUPPORTIVE CARE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 1, 2025
• First Posted: January 29, 2026
• Study Start: April 12, 2023
• Primary Completion: June 28, 2023
• Study Completion (Estimated): December 31, 2030
• Last Updated: January 29, 2026

Record last verified: 2025-07

Locations

SG (1)