Professor Zhang Xuefeng's Death and Science Popularization on Cardiac Sudden Death

March 24, 2026 Suzhou Peak Academy Weilai Company Issues Obituary
Zhang Xuefeng's Real Name Zhang Zibiao Experienced Discomfort After Running at the Company at 12:26 Noon
Emergency Hospitalization and Resuscitation Failed Regrettably Passed Away at 15:50
Hospital Diagnosed as Cardiac Sudden Death
I. What Situations May Lead to Cardiac Sudden Death
Core Pathological Basis
Coronary Heart Disease Accounts for Approximately 80% Atherosclerosis of Coronary Arteries Causes Myocardial Ischemia and Hypoxia
Easily Triggers Malignant Arrhythmias Such as Ventricular Fibrillation
Cardiomyopathy Hypertrophic Cardiomyopathy Dilated Cardiomyopathy etc.
Abnormal Heart Structure Easily Triggers Sudden Death
Other Heart Diseases
Myocarditis Heart Valve Disease Congenital Heart Disease Long QT Syndrome and Other Cardiac Electrical Abnormalities
Common Triggering Factors
Intense Exercise or Excessive Fatigue Intense Exercise Significantly Increases Cardiac Load
Especially in the Presence of Hidden Heart Problems Extremely Prone to Triggering Malignant Arrhythmias
Severe Emotional Fluctuations Extreme Anger Extreme Joy Excessive Anxiety and Tension
Cause Sympathetic Nervous System to Become Instantly Excited Heart Rate and Blood Pressure Surge Suddenly
Long-term Sleep Deprivation or Insufficient Sleep Disrupts Autonomic Nervous System Balance
Increases Risk of Arrhythmia and Myocardial Ischemia
Poor Living Habits Excessive Alcohol Consumption Smoking Binge Eating
Long-term High-Salt High-Fat Diet Accelerates Coronary Artery Hardening
Environmental and Physiological Stimulation Cold Stimulation Electrolyte Imbalance
II. First-Time Emergency Response to Cardiac Sudden Death
Golden Four-Minute Principle
The Golden Rescue Time for Cardiac Sudden Death is Only 4 Minutes
Every 1-Minute Delay Reduces Patient Survival Rate by Approximately 10%
Step One Rapid Identification and Immediate Call for Help
Identification Patient Suddenly Collapses Loss of Consciousness
Breathing Stops or Only Gasping Carotid or Femoral Pulse Cannot Be Felt
Call for Help Have Those Around Immediately Call 120
Clearly State the Location of the Incident and Patient's Condition
Have Those Around Retrieve the Nearest AED
Step Two Immediately Begin CPR
Body Positioning Place Patient Supine on a Flat Hard Surface
Loosen Collar and Waist Belt
Chest Compression Overlap Both Palms Place on the Lower Third of the Sternum
Compression Depth 5 to 6 Centimeters Frequency 100 to 120 Times per Minute
Keep Arms Straight During Compression Use Body Weight to Press Down
Ensure Thorax Completely Rebounds After Each Compression
Open Airway Clear Foreign Objects from Patient's Mouth and Nose
Use Head Tilt Chin Lift Technique to Open Airway
Artificial Respiration After Every 30 Chest Compressions Perform 2 Artificial Respirations
Pinch Patient's Nose Mouth-to-Mouth Breathing for 1 Second Check that Thorax Rises
Compression to Breathing Ratio is 30 to 2
Continuous Operation Perform CPR Uninterruptedly Until AED Arrives or Medical Personnel Take Over
Step Three Use AED Defibrillation
After Powering On Strictly Follow Voice Prompts
Place Electrode Pads on Patient's Upper Right Chest Below Clavicle and Left Lower Chest Lateral to Nipple
When Analyzing Heart Rhythm Ensure All People Stay Away from Patient Do Not Touch
If Device Indicates Defibrillation is Needed Confirm Again That No One is Touching Patient Then Press Defibrillation Button
Immediately Resume CPR After Defibrillation Until Medical Personnel Arrive
III. How to Detect Warning Signals Early
Approximately 51% of Sudden Death Patients Had Warning Symptoms Weeks or Months Prior
Among These Chest Pain is Most Common
Patients Who Previously Had Warning Symptoms 93% of People Will Experience Recurrent Warning Symptoms Within 24 Hours Before Sudden Death
Common Signs
Chest Pain Usually Characterized by Pressure Sensation Tightness or Pain
May Radiate to Shoulders Arms Back or Jaw
Palpitations or Arrhythmia Feel Heart Beating Too Fast Too Slow or with Irregular Beats
Shortness of Breath Even at Rest May Feel Breathing Difficulties or Breathlessness
Extreme Fatigue Feel Weak Extremely Tired Unable to Perform Daily Activities
Nausea or Vomiting Accompanied by Dizziness or Sweating Often Mistaken for Digestive Issues
Syncope or Loss of Consciousness Mental Confusion or Sudden Collapse
Suggests Possible Serious Heart Problems
High-Risk Groups Need Active Screening
People Who Experience Chest Tightness Chest Pain Palpitations Shortness of Breath During Exercise
Those Who Have Experienced Syncope Especially Syncope During Exercise
People With Risk Factors for Coronary Heart Disease Such as Hypertension Diabetes High Cholesterol Smoking Obesity
People With Known Heart Disease Arrhythmia Myocarditis History
People With Family History of Young Sudden Death or Inherited Heart Disease
People Under Long-term High Stress Sleep Deprivation or Sudden Preparation to Resume High-Intensity Exercise
IV. Prevention Recommendations
Sleep
Optimal Sleep Duration 7 to 8 Hours
Safest Sleep Time 10 to 11 PM
Sleeping Less Than 6 Hours or More Than 9 Hours Daily Over Long Periods
Significantly Increases the Incidence Rate of Myocardial Infarction
Long-term Rest After Midnight Myocardial Infarction Heart Failure Stroke and Cerebral Ischemia Risks Double
Making Up Sleep After Sleep Deprivation Cannot Recover Much
Exercise
When Sleep is Insufficient Never Engage in Intense Exercise
Moderate Exercise Strengthens Health Excessive Exercise Damages Health
If Chest Pain Chest Tightness Obvious Palpitations Dizziness Blurred Vision Nausea Unusual Fatigue Occurs During or After Exercise
Especially if Different from Normal Stop Immediately
Living Habits
Avoid Alcohol Coffee Tea and Spicy Irritating Foods Before Sleep
Establish Sleep Ritual One Hour Before Bed
Maintain Daily Exercise Habit
Let the Bed Return to Its Property Only for Sleeping
Finally I Want to Say
All Things in the World Ultimately Come Down to Life and Death
Teacher Zhang Was Successful Accumulated So Much Wealth Yet Could Not Resist Life and Death
Being Alive is Good Everything Else is Insignificant
Live Well Take Good Care of Yourself
Sleep Regularly Eat Regularly Any Slight Discomfort Go to Hospital
Nothing is More Important
With Life Money Has a Place to Use Love Has a Place to Land
Health Comes First You Are Your Children's Sky and Earth
Raise Your Children to Adulthood Support Your Parents in Their Old Age