Investigation of patients who called for emergency services after cardiac arrest but did not wish to receive cardiopulmonary resuscitation (CPR).

Characteristics of patients who did not wish to be resuscitated but were called for emergency medical assistance during cardiac arrest, and their association with the local healthcare system: A prospective observational study.

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT1030260106

Enrollment

2500

Registered

2026-05-01

Start date

2026-05-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiopulmonary arrest CPA, Cardiopulmonary arrest

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: All of the following conditions must be met: i) The injured or ill person is in Ibaraki Prefecture and an emergency call has been made. ii) The person is in cardiac arrest upon arrival of the ambulance crew at the scene. iii) The person is 18 years of age or older.

Exclusion criteria

Exclusion criteria: When there is no one on site who can make decisions regarding how to respond to a patient's sudden change in condition.

Design outcomes

Primary

Measure	Time frame
Percentage of Do Not Attempt Resuscitation (DNAR) cases among emergency calls for total cardiac arrest.	—

Secondary

Measure	Time frame
Detailed Information Regarding DNAR Cases - Percentage of individuals who discussed DNAR (multiple individuals allowed: patient, family, doctor, facility staff, etc.) - Percentage of individuals who expressed their intention to DNAR in writing - Percentage of individuals who had predetermined procedures for responding to cardiac arrest - Details of the procedures for responding to cardiac arrest (e.g., emergency call, contact with attending physician, contact with visiting nurse, contact with care manager, etc.) - Reason for emergency call - Type of current outpatient medical institution - Presence or absence of home medical care intervention - Recognition of cardiac arrest at the time of notification Relationship with the regional medical system - Relationship between the number of medical institutions in the secondary medical area (by type, per capita) and the percentage of DNAR cases	—

Measure

Time frame

Detailed Information Regarding DNAR Cases - Percentage of individuals who discussed DNAR (multiple individuals allowed: patient, family, doctor, facility staff, etc.) - Percentage of individuals who expressed their intention to DNAR in writing - Percentage of individuals who had predetermined procedures for responding to cardiac arrest - Details of the procedures for responding to cardiac arrest (e.g., emergency call, contact with attending physician, contact with visiting nurse, contact with care manager, etc.) - Reason for emergency call - Type of current outpatient medical institution - Presence or absence of home medical care intervention - Recognition of cardiac arrest at the time of notification Relationship with the regional medical system - Relationship between the number of medical institutions in the secondary medical area (by type, per capita) and the percentage of DNAR cases

—

Contacts

Public ContactSakamoto Ayaka

University of Tsukuba

ayaka.furukawa@md.tsukuba.ac.jp+81-29-853-3900

Outcome results