Research on Key Technologies and System Optimization of Early Warning and Resuscitation of Cardiac Arrest

Summary

Studies have shown that early prevention and warning of cardiac arrest, rapid implementation of high-quality cardiopulmonary resuscitation, and strengthening of organ function protection after resuscitation are the keys to reducing the occurrence of cardiac arrest and improving the prognosis of patients. However, there are still many problems in the field of cardiopulmonary resuscitation in my country: 1) lack of effective prevention and early self-rescue system for cardiac arrest; 2) traditional resuscitation techniques implemented in pre-hospital and emergency rooms and poor results; 3) organs after resuscitation Insufficient protection means and effects. In our early stage, focusing on the above key issues, the study found that 5G technology can help high-risk emergency events including early warning, early detection and first aid of cardiac arrest. Aortic balloon occlusion can significantly improve the effectiveness of cardiopulmonary resuscitation. Transesophageal and CRRT cooling Can significantly optimize the organ protection intensity of therapeutic hypothermia. On the basis of the preliminary work, this project will carry out the research and development and clinical application of a series of new technologies for cardiac arrest warning and resuscitation, and work hard to help with cardiac arrest. Early warning and treatment of cases provide a set of optimized diagnosis and treatment technical solutions, which has important scientific, clinical and social significance.

Conditions

• Emergencies

Interventions

PROCEDURE

Aortic balloon assisted resuscitation

On the basis of the traditional resuscitation mode, the aortic balloon occlusion technology is used, that is, at the same time when the cardiopulmonary resuscitation starts, the aortic balloon catheter is quickly punctured to the distal end of the aortic zone I (septum level) through ultrasound assistance, and then Continue to inflate the balloon to block the aortic blood flow until the end of the cardiopulmonary resuscitation to deflate the balloon and remove the balloon catheter.

PROCEDURE

Traditional cardiopulmonary resuscitation

Use the traditional manual chest compression mode, that is, refer to the latest version of the CPR Guidelines. Artificial chest compressions are performed under the monitoring of the pressure quality feedback device to ensure that the compression depth is 5-6cm, the frequency is 100-120 times/min, the compression position is fixed, and the chest wall fully rebounds.

PROCEDURE

Esophageal cooling

The new transesophageal cooling method is adopted, that is, the esophageal cooling catheter is indwelled after resuscitation in patients with cardiac arrest, and then connected to a small temperature-controlled water circulation system to continuously infuse 4℃ cold water. After the patient's body temperature reaches the target temperature of 33℃, the temperature-controlled water circulation system is adjusted Maintain the target body temperature of (33±0.5)°C for 24 hours, and then rewarm to (37±0.5)°C normal body temperature at a rate of 0.25-0.5°C/h and maintain it for 24 hours.

PROCEDURE

traditional cooling

The traditional body surface ice blanket cooling method is adopted, that is, the patient with cardiac arrest lies on the temperature control blanket after resuscitation, and then uses the ice blanket host to continuously infuse the temperature control blanket with 4℃ cold water, and wait until the patient's body temperature reaches the target temperature of 33℃. The temperature of the circulating water is controlled by adjusting the ice blanket host to maintain the target body temperature of (33±0.5)°C for 24 hours, and then reheat to the normal body temperature of (37±0.5)°C at a rate of 0.25-0.5°C/h and maintain it for 24 hours.

Sponsors & Collaborators

• Second Affiliated Hospital, School of Medicine, Zhejiang University

  lead OTHER

Principal Investigators

• Mao Zhang, PHD · Second Affiliated Hospital of Zhejiang University School of Medicine

Study Design

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2021-01-01

Primary Completion

2023-12-30

Completion

2024-11-30

Countries

• China

Study Locations