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Table 1 Patient factors

From: Routine angiography in survivors of out of hospital cardiac arrest with return of spontaneous circulation: a single site registry

Demographics Number Percentage
Total out of hospital cardiac arrests 78  
 Males (mean age 61.5 yrs, range 18–84, SD ± 14.9) 63 80.8%
 Female (mean age 63.4 yrs, range 34–91, SD ± 16.9) 15 19.2%
 Total number of patients with AMI 51 65.4%
  STEMI subgroup 31 39.7%
  NSTEMI subgroup 20 25.6%
Transfers from peripheral hospitals 46 59.0%
Direct presentations to TPCH 32 41.0%
All coronary angiograms during the same period 6072  
 Male 4048 66.6%
 - Mean age (in years) 63.0  
 Female 2024 33.3%
 - Mean age (in years) 64.8  
All STEMI patientsa 512  
 Male 389 76.0%
 - Mean age (years) 59.0  
 Female 123 24.0%
 - Mean age (years) 64.2  
Mean body mass index (BMI) kg/m2 (Range 18.8–55.6, SD ± 5.5) 28.5  
Aboriginal or Torres Strait Island origin 1 1.3%
Risk factors   
Hypertension 39/77 50.6%
Hyperlipidaemia 28/67 41.8%
Diabetes 13/77 16.9%
Current smoker 22/62 35.5%
Any history of smoking 47/59 79.7%
Known history of ischaemic heart disease 20/76 26.3%
History of previous myocardial infarction 17/76 22.4%
Documentation of illicit drug use at time of cardiac arrest 3/75 4.0%
History of cardiomyopathy 8/77 10.4%
Family history of ischaemic heart disease 23/41 56.1%
Renal failure (GFR <60 ml/min) 34/78 43.6%
Events immediately following cardiac arrest   
Chest pain prior to event 25/75 33.3%
Treatment (at the scene): CPR 71/77 92.2%
           DCCV 69/78 88.5%
Median time (in min) to ROSC (n = 67), IQR 10.0–27.5 15.0  
Patients with initial treatment at a peripheral hospital 46/78 59.0%
Thrombolysis in ambulance (of the 30 STEMI patients) 2/78 2.2%
Initial rhythm by ambulance Ventricular fibrillation 59/78 75.6%
Ventricular tachycardia 6/78 7.7%
Asystole 4/78 5.1%
Pulseless electrical activity 4/78 5.1%
Bradycardia 4/78 5.1%
Sinus rhythm 1/78 1.3%
Unknown 0/78 0.0%
Ambulance ECG after ROSC Unclear 4/60 6.7%
Atrial fibrillation 6/60 10.0%
Idioventricular rhythm 2/60 3.3%
Junctional rhythm 4/60 6.7%
Sinus rhythm 43/60 71.7%
Ventricular tachycardia (unavailable and undocumented in 18 patients) 1/60 1.7%
GCS GCS 3 on arrival of paramedics at the scene 62/77b 80.5%
Brought to hospital intubated or GCS 3 62/78 79.5%
Characteristics in the emergency department   
Congestive heart failure 11/78 11.8%
Abnormal left ventricular (LV) functionc 52/72 72.2%
Cardiogenic shock 34/78 43.6%
Requirement for inotropes 35/78 44.9%
Intubation at any time during the first 24 hours 67/78d 85.9%
Insertion of balloon pump 22/78 28.2%
First ECG in hospital   
Rhythm: Sinus rhythm 66/78 84.6%
Atrial fibrillation 6/78 7.7%
Ventricular tachycardia 3/78 3.8%
Ventricular fibrillation 0/78 0.0%
Pulseless electrical activity 1/78 1.3%
Junctional rhythm 2/78 2.6%
Specific ECG changes (ST elevation or depression) 43/78 55.1%
Any ST segment changes (including non-specific) 63/78 80.8%
Normal ECG 15/78 19.2%
QRS duration >120 ms 15/78 19.2%
Myocardial territories identified on ECGe Anterior 21/43 48.8%
Inferior 7/43 16.3%
Lateral 5/43 11.6%
Antero-lateral 6/43 14.0%
Infero-lateral 4/43 9.3%
Initial treatment in ami patient subgroup   
Heparin or Enoxaparin 48/51 94.1%
 Heparin 42/51 82.4%
 Enoxaparin 6/51 11.8%
Aspirin 49/51 96.1%
Clopidogrel 40/51 78.4%
Glycoprotein IIb IIIA receptor blocker 9/51 17.6%
Thrombolysis (by ambulance or hospital)   
 As a proportion of all AMI patients 10/51 19.6%
 For patients with ST elevation on ECG 10/32 31.3%
Timing of coronary angiogram   
Emergent angiogram in entire group 34/78 43.6%
Emergent angiogram in TPCH presentations 22/32 68.8%
Emergent angiogram in peripheral hospital presentations 12/46 26.1%
  1. The denominator is the number of patients with data available.
  2. aRefers to all STEMI patients admitted to TPCH during the study period.
  3. bOne patient was driven to the hospital in a private vehicle.
  4. cInitial left ventricular (LV) function estimated by transthoracic echocardiogram, transoesophageal echocardiogram (1 patient) or left ventriculogram during coronary angiogram. Abnormal LV function was recorded if the LV ejection fraction was less than 50% or was recorded as “reduced”. The mean LV function was 37.5%, SD ± 17.9%).
  5. d42 of these were intubated at the scene by paramedics.
  6. eIn those patient who had specific ECG changes.