Table 5.

Detailed comparison of pre‐ and post‐implantation hospitalizations of the CardioMEMS heart failure system in all seven enrolled patients

Years of observation		Total number of hospitalizations				Total number of days in the hospital				Number of days in the hospital per month				Length of stay in the hospital				Total number of hospitalizations from the ED
Pre‐implant (A)	Post‐implant (B)	Pre‐implant (A)	Post‐implant (B)	(B)–(A)	(B)–(A) in %	Pre‐implant (A)	Post implant (B)	(B)–(A)	(B)–(A) in %	Pre‐implant (A)	Post‐implant (B)	(B)–(A)	(B)–(A) in %	Pre‐implant (A)	Post‐implant (B)	(B)–(A)	(B)–(A) in %	Pre‐implant (A)	Post‐implant (B)	(B)–(A)	(B)–(A) in %
2.3	2.3	6	6	‐		120	75	−45	−38%	4.29	2.68	−1.61	−161%	20.0	12.5	−7.5		1	1	0
3.0	3.0	11	8	−3		135	60	−75	−56%	3.75	1.67	−2.08	−208%	12.3	7.5	−4.8	−39%	11	6	−5
0.4	0.4	5	3	−2		126	14	−112	−89%	25.20	2.80	−22.40	−2240%	25.2	4.7	−20.5		5	0	−5
1.0	1.0	4	‐	−4		33	‐	−33	−100%	2.75	0.00	−2.75	−275%	8.3	0	−8.3		1	0	−1
1.8	1.8	2	‐	−2		19	‐	−19	−100%	0.86	0.00	−0.86	−86%	9.5	0	−9.5		0	0	0
1.5	1.5	3	‐	−3		12	‐	−12	−100%	0.67	0.00	−0.67	−67%	4.0	0	−4.0		1	0	−1
1.1	1.1	5	1	−4		41	3	−38	−93%	3.15	0.23	−2.92	−292%	8.2	3	−5.2		4	0	−4
		36	18	−18	−50.0%	486	152	−334	−68.7%					87.4	27.7	−59.8	−68.4%	23	7	−16	−69.6%
		Pre‐implant: hospitalizations/patient‐year	Post‐implant: hospitalizations/patient‐year	Diff	Annualized HF hospitalization rates	Total number of days in the hospital/patient‐year	Total number of days in the hospital/patient‐year	Diff	Annualized days in hospital rate									Pre‐implant: hospitalizations from ED/patient‐year	Post‐implant: hospitalizations from ED/patient‐year	Diff	Annualized HF hospitalization rates from ED
		0.46	0.23	−0.23	−50.0%	6.22	1.94	−4.27	−68.7%									0.29	0.09	−0.20	−69.6%

ED, emergency department.