Retrievable Inferior Vena Cava Filters in Patients with Cancer: Complications and Retrieval Success Rate

Table 3

Clinical characteristics in patients with active cancer () with and without filter complications.

	With filter complications; ()	Without filter complications; ()	value
Age, years (mean, SD)	60 ()	62 ()	0.65
Male gender	7 ()	21 ()	0.19
BMI (median, IQR)	30 (27–34)	30 (25–35)	0.88
VTE event
DVT	11 ()	63 ()	0.22
Bilateral	3 ()	21 ()	1
IVC	0	3	1
Proximal	10 ()	50 ()	0.68
PE	9 ()	41 ()	0.82
Filter indication
Surgery	4 ()	30 ()	0.39
Bleeding	8 ()	26 ()	0.21
Bleeding risk	2 ()	15 ()	0.73
Failed anticoagulation	1 ()	1 ()	0.32
Other	1 ()	1 ()	0.32
Medications
Antiplatelet	3 ()	9 ()	0.40
Statins	5 ()	11 ()	0.072
Laboratory
WBC mean (median, IQR)	8.5 (6.8–10.8)	8.1 (5.6–12.4)	0.86
Hemoglobin mean (mean, SD)	10.3 (2.5)	10.1 (1.7)	0.77
Platelets mean (median, IQR)	237 (181–311)	217 (140–325)	0.95
Creatinine mean (median, IQR)	0.83 (0.07–1.1)	0.9 (0.7–1.2)	0.85
Bilirubin (median, IQR)	0.6 (0.03–0.8)	0.6 (0.4–1.1)	0.20
Chemotherapy	5 ()	23 ()	0.92
Metastatic	6 ()	38 ()	0.37
Khorana score, intermediate and high	10 ()	67 ()	0.035
Ottawa score ≥1	8 ()	42 ()	0.72
Follow-up time (median, IQR)	203 (98–357)	200 (28–443)	0.84
Anticoagulation within 1 month	12 ()	49 ()	0.36
Outcomes
Death	5 ()	43 ()	0.062
Time to death (median, IQR)	203 (164–229)	67 (24–311)	0.23
Died with filter in place	2 ()	35 ()	0.07
Filter status changed to permanent	4 ()	9 ()	1
Filter retrieved	7 ()	26 ()	0.44
Time to filter retrieval, days (median, IQR)	33 (21–60)	31 (9–70)	0.74
Time to retrieval or changed to permanent, days (median, IQR)	55 (31–72)	45 (25–108)	0.93
Complications
Incident VTE	8 ()	6 ()	<0.01
DVT	7 ()	4 ()	<0.01
PE	1 (6.7)	3 ()	0.52

Note: values are (%) unless otherwise specified. IQR: interquartile range; SD: standard deviation; : Fisher’s exact test.