Abstract
RATIONALE: Timely treatment and recovery of cardiac arrest in out-of-hospital settings present significant challenges. This report describes a novel method of integrating advanced monitoring techniques such as radial artery cannulation in the treatment of an 85-year-old male patient who suffered an out-of-hospital cardiac arrest (OHCA). PATIENT CONCERNS: The patient, an 85-year-old man, experienced sudden cardiac arrest at home around 4:10 pm on November 22, 2023, characterized by immediate loss of consciousness and absence of pulse, and no response when called by name, necessitating urgent medical intervention. DIAGNOSES: The patient was diagnosed with OHCA by the emergency doctor, which was further confirmed by the absence of spontaneous circulation and respiratory failure. INTERVENTIONS: The patient was treated with manual cardiopulmonary resuscitation (CPR), ventilator-assisted ventilation, internal jugular venous catheterization, medical treatment, mechanical CPR, and supplemented by radial artery cannulation for invasive blood pressure monitoring. This technique was pivotal for real-time hemodynamic assessment. OUTCOMES: The invasive monitoring facilitated the early detection of the return of spontaneous circulation, allowing for the timely cessation of mechanical CPR. Subsequent treatment in the intensive care unit was optimized based on continuous arterial pressure readings, enhancing the stabilization of the patient's condition. LESSONS: This case underscores the significant role of radial artery cannulation for invasive blood pressure monitoring in improving clinical outcomes for patients experiencing OHCA. Integrating radial artery cannulation with other advanced monitoring techniques aids in the early detection of the return of spontaneous circulation and optimizes subsequent intensive care treatment.