Table 4.

Baseline characteristics and case description of patients with in-hospital death with likely direct relation to the coded prior catheter ablation of either a ventricular tachycardia, atrial fibrillation, or right isthmus dependent atrial flutter (n = 27)

NR	Age (Y)	Gender	Comorbidities	CMP	ICD	LVEF (%)	Antiarrhythmic medication	OAC	LOS	Cause of death
Atrial fibrillation
1	61	Male	None	NICM	Yes	35	Amiodarone	None	4	Post-interventional cardiac tamponade
2	65	Female	PVD	None	No	69	None	None	20	Cardiogenic shock after esophago-atrial fistula with LA perforation
3	92	Male	PVD	None	No	50	None	Apixaban	15	Post-interventional CPR due to hypoxia-related asphyxia based on a nosocomial pneumonia
4	84	Female	None	NA	No	55	Amiodarone	Rivaroxaban	7	Post-interventional cardiac tamponade
5	69	Female	PVD	None	No	55	None	Phenprocoumon	6	Septic multiorgan failure with possible ablation-associated severe infection
6	79	Female	CKD	None	No	NA	None	Phenprocoumon	4	Death following resuscitation after operation of a post-interventional vascular complication
7	67	Female	None	None	No	55	None	Phenprocoumon	18	CPR due to pulseless electrical activity in the setting of a haemorrhagic shock due to a post-interventional pericardial effusion
8	80	Male	None	NICM	Yes	20	None	Rivaroxaban	23	Post-interventional pulmonary arterial embolism
9	70	Male	CKD	ICM	Yes	40	Amiodarone and mexiletine	None	36	Hypoxic brain injury of unknown cause after ablation
Atrial flutter
10	38	Male	None	None	No	63	None	None	1	Intra-procedural pericardial tamponade after ablation with cardiogenic shock and death
11	77	Male	None	None	No	60	None	None	6	Post-interventional stroke
12	51	Female	None	ICM	No	54	None	Phenprocoumon	5	Retroperitoneal bleeding after ablation in the presence of intensive oral anticoagulation for mechanical mitral valve
13	86	Male	COPD	None	No	73	None	Apixaban	18	Post-interventional stroke
Ventricular tachycardia
14	67	Male	PVD, COPD, CKD	ICM	Yes	30	Mexiletine	Phenprocoumon	43	CPR with pulmonary embolism and electro-mechanic uncoupling after VT ablation; 43 days after ablation septic shock
15	49	Male	PVD, CKD	ICM	Yes	12	None	Phenprocoumon	11	Septic shock after acute ischaemia of the popliteal artery with necrosis
16	72	Female	PVD	ICM	No	45	None	None	2	Pulmonary arterial embolism
17	80	Male	None	NICM	Yes	30	Amiodarone	Apixaban	2	Post-interventional cardiac tamponade
18	47	Male	None	NICM	Yes	12	None	Phenprocoumon	12	Post-interventional stroke
19	75	Male	None	ICM	Yes	40	Amiodarone	Phenprocoumon	15	Post-interventional stroke
20	63	Male	NICM	NICM	Yes	30	Amiodarone	Phenprocoumon	10	Aortic puncture at transseptal puncture with fatal haemorrhagic shock
21	64	Male	NA	NA	Yes	NA	Mexiletine	None	6	Intra-procedural pericardial tamponade with surgical management and post-operative sepsis resulting in a combined septic and cardiogenic shock
22	64	Male	None	NICM	No	39	None	None	6	Post-interventional tamponade
23	79	Male	None	NICM	Yes	19	Amiodarone and mexiletine	Phenprocoumon	11	Post-interventional tamponade
24	68	Female	PVD	ICM	Yes	20	Amiodarone	None	2	Post-interventional tamponade
25	89	Male	PVD	ICM	NA	51	Amiodarone	None	NA	Post-interventional death due to severe pneumonia associated sepsis and shock following ablation
26	69	Male	PVD	NICM	Yes	23	Amiodarone	Phenprocoumon	32	Death due to thrombosis with acute leg ischaemia during VT ablation
27	75	Male	PVD	none	No	50	Amiodarone	Phenprocoumon	15	Post-interventional stroke with consequent aspiration pneumonia and sepsis

AFL, right atrial isthmus dependent atrial flutter; CKD, chronic kidney disease; CMP, cardiomyopathy; COPD, chronic obstructive pulmonary disease; CPR, cardiopulmonary resuscitation; ICM, ischaemic cardiomyopathy; LOS, length of stay; LVEF, left ventricular ejection fraction; NA, not available; NICM, non-ischaemic cardiomyopathy; OAC, oral anticoagulation; OHCA, out-of-hospital cardiac arrest; PVD, peripheral vascular disease; VF, ventricular fibrillation; VT, ventricular tachycardia.