Table 1 Open in new tab Patient and...

Patient

Age (years)

Pre-procedural left ventricular (LV) ejection fraction (%)

Comorbidities

Body mass index (BMI)

Medications

Known allergies

Anaesthesia

Biochemistry results

Total heparin (IU) administered

Time interval from last heparin dose to protamine (min)

Time interval post-protamine infusion to onset of cardiac arrest (min)

Other pharmacological agents given peri-procedure (apart from GA)

>55%

Ischaemic heart disease (IHD), permanent pacemaker (PPM) for symptomatic bradycardia

28.8

Lansoprazole 30 mg od
Perindopril 4 mg od
Rosuvastatin 10 mg ON
Sotalol 160 mg BD
Warfarin

None

General anaesthetic (GA):

Propofol 100 mg
Rocuronium 50 mg
Fentanyl 50 mcg
Sevoflurane

Pre-procedure creatinine = 71
2-h post-arrest tryptase level = 12.7 µg/L
6-h post-arrest tryptase level = 10.2 µg/L

19 000

Intravenous ondansetron 4 mg, paracetamol 1 g, metaraminol 0.5 mg slow bolus

30%

Dilated cardiomyopathy (DCM), cardiac resynchronization therapy-defibrillator (CRT-D) in situ

38.5

Bisoprolol 10 mg od
Bumetanide 1 mg od
Ramipril 10 mg od
Spironolactone 2 mg od
Digoxin 250 mcg od
Finasteride 5 mg od
Warfarin

None

Conscious sedation

Diazemuls (20 mg total)

Pre-procedure creatinine = 76
Serum tryptase level = 5.3 µg/L

17 000

Intravenous morphine (5 mg)

55%

Chronic kidney disease (CKD) 3

28.4

Atorvastatin 40 mg on
Allopurinol 300 mg od
Bisoprolol 1.25 mg od
Warfarin

None

GA:

Propofol 150 mg
Rocuronium 50 mg
Fentanyl 50 mcg
Sevoflurane

Pre-procedure creatinine = 101
Serum tryptase level = 4.3 µg/L

15 000

Nil

Table 1

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Patient and procedural characteristics

Patient	Age (years)	Pre-procedural left ventricular (LV) ejection fraction (%)	Comorbidities	Body mass index (BMI)	Medications	Known allergies	Anaesthesia	Biochemistry results	Total heparin (IU) administered	Time interval from last heparin dose to protamine (min)	Time interval post-protamine infusion to onset of cardiac arrest (min)	Other pharmacological agents given peri-procedure (apart from GA)
1	72	>55%	Ischaemic heart disease (IHD), permanent pacemaker (PPM) for symptomatic bradycardia	28.8	Lansoprazole 30 mg od Perindopril 4 mg od Rosuvastatin 10 mg ON Sotalol 160 mg BD Warfarin	None	General anaesthetic (GA): Propofol 100 mg Rocuronium 50 mg Fentanyl 50 mcg Sevoflurane	Pre-procedure creatinine = 71 2-h post-arrest tryptase level = 12.7 µg/L 6-h post-arrest tryptase level = 10.2 µg/L	19 000	90	10	Intravenous ondansetron 4 mg, paracetamol 1 g, metaraminol 0.5 mg slow bolus
2	60	30%	Dilated cardiomyopathy (DCM), cardiac resynchronization therapy-defibrillator (CRT-D) in situ	38.5	Bisoprolol 10 mg od Bumetanide 1 mg od Ramipril 10 mg od Spironolactone 2 mg od Digoxin 250 mcg od Finasteride 5 mg od Warfarin	None	Conscious sedation Diazemuls (20 mg total)	Pre-procedure creatinine = 76 Serum tryptase level = 5.3 µg/L	17 000	60	3	Intravenous morphine (5 mg)
3	67	55%	Chronic kidney disease (CKD) 3	28.4	Atorvastatin 40 mg on Allopurinol 300 mg od Bisoprolol 1.25 mg od Warfarin	None	GA: Propofol 150 mg Rocuronium 50 mg Fentanyl 50 mcg Sevoflurane	Pre-procedure creatinine = 101 Serum tryptase level = 4.3 µg/L	15 000	60	10	Nil

Patient	Age (years)	Pre-procedural left ventricular (LV) ejection fraction (%)	Comorbidities	Body mass index (BMI)	Medications	Known allergies	Anaesthesia	Biochemistry results	Total heparin (IU) administered	Time interval from last heparin dose to protamine (min)	Time interval post-protamine infusion to onset of cardiac arrest (min)	Other pharmacological agents given peri-procedure (apart from GA)
1	72	>55%	Ischaemic heart disease (IHD), permanent pacemaker (PPM) for symptomatic bradycardia	28.8	Lansoprazole 30 mg od Perindopril 4 mg od Rosuvastatin 10 mg ON Sotalol 160 mg BD Warfarin	None	General anaesthetic (GA): Propofol 100 mg Rocuronium 50 mg Fentanyl 50 mcg Sevoflurane	Pre-procedure creatinine = 71 2-h post-arrest tryptase level = 12.7 µg/L 6-h post-arrest tryptase level = 10.2 µg/L	19 000	90	10	Intravenous ondansetron 4 mg, paracetamol 1 g, metaraminol 0.5 mg slow bolus
2	60	30%	Dilated cardiomyopathy (DCM), cardiac resynchronization therapy-defibrillator (CRT-D) in situ	38.5	Bisoprolol 10 mg od Bumetanide 1 mg od Ramipril 10 mg od Spironolactone 2 mg od Digoxin 250 mcg od Finasteride 5 mg od Warfarin	None	Conscious sedation Diazemuls (20 mg total)	Pre-procedure creatinine = 76 Serum tryptase level = 5.3 µg/L	17 000	60	3	Intravenous morphine (5 mg)
3	67	55%	Chronic kidney disease (CKD) 3	28.4	Atorvastatin 40 mg on Allopurinol 300 mg od Bisoprolol 1.25 mg od Warfarin	None	GA: Propofol 150 mg Rocuronium 50 mg Fentanyl 50 mcg Sevoflurane	Pre-procedure creatinine = 101 Serum tryptase level = 4.3 µg/L	15 000	60	10	Nil

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