The Difficult Evolution of Intensive Cardiac Care Units: An Overview of the BLITZ-3 Registry and Other Italian Surveys

Table 2

Main clinical characteristics of the BLITZ-3 Registry population according to age subgroups [9].

	Age < 75; ()	Age ≥ 75; ()
Female gender, %	27	49	<0.0001
Diabetes, %	23	27	<0.0001
Previous myocardial infarction, %	22	27	<0.0001
Previous stroke or PVD, %	10	20	<0.0001
Atrial fibrillation, %	8	20	<0.0001
Neoplasm, %	4	8	<0.0001
No comorbidities, %	39	18	<0.0001
Creatinine > 2 mg/dl on admission, %	5	12	<0.0001
Hemoglobin < 10 gr/dl on admission, %	5	10	<0.0001
Renal failure in ICCU, %	9	15	<0.0001
Heart failure in ICCU, %	6	12	<0.0001
Shock or Killip IV in ICCU, %	3,5	8,1	<0.0001
High-grade AV block in ICCU, %	1,8	2,9	0.003
Cardiac arrest in ICCU, %	1,4	5	<0.0001
Length of stay in ICCU, median (IQR)	3 (2–5)	4 (3–6)	<0.0001
In-ICCU crude global mortality	1.35	6.03	<0.0001

IQR: interquartile range; AV: atrioventricular; ICCU: Intensive Cardiac Care Unit; PVD: peripheral vascular disease.