Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc
Journal website http://www.jocmr.org

Original Article

Volume 6, Number 2, April 2014, pages 91-97


Lack of Clinical Benefit of Thromboprophylaxis in Patients Hospitalized in a Medical Unit Over a 10-year Span

Figure

Figure 1.
Figure 1. Proportion of patients and duration of thromboprophylaxis with incidence of thromboembolic and bleeding events.

Tables

Table 1. Baseline Characteristics of the Total Population and the Study Population
 
Total population (%)High risk patients (%)
DVT: deep vein thrombosis; MSK: musculosquelettal; PE: Pulmonary embolism; psy: psychiatric; VTE: venous thromboembolic event.
Number of patients23691302
Male gender967 (40.8)567 (43.5)
Female gender1402 (59.2)735 (56.5)
Average length of stay (days)1518
Age on admission (year)6870
Diagnosis on admission
 Non-specified generalized weakness218 (9.2)113 (8.7)
 Neurologic disease233 (9.8)153 (11.8)
 Pulmonary disease65 (2.7)45 (3.5)
 Cardiovascular disease186 (7.9)97 (7.5)
 Gastrointestinal disease173 (7.3)65 (5.0)
 Nephro - endo - metab167 (7.1)72 (5.5)
 Hematologic disease (no cancer)129 (5.4)44 (3.4)
 Neoplasia321 (13.6)286 (21.9)
 Rhumatologic and inflammatory133 (5.6)40 (3.1)
 Infectious disease363 (15.3)278 (21.3)
 Substance withdrawal or intox59 (2.5)33 (2.5)
 Dermato - psy - MSK - allergy184 (7.8)76 (5.9)
 Thromboembolic disease138 (5.8)0
 Palliative care222 (9)196 (15)
Risk factors for VTE
 Average number of risk factors1.111.56
 Congestive heart failure406 (17.1)305 (23.5)
 Severe respiratory condition570 (24.1)465 (35.7)
 Active cancer or on treatment435 (18.4)387 (29.8)
 Previous DVT or PE159 (6.7)84 (6.5)
 Systemic infection or sepsis479 (20.2)413 (31.7)
 Acute neurologic disease315 (13.3)283 (21.8)
 Inflammatory bowel disease32 (1.4)28 (2.2)
 Post-op or trauma < 3 months79 (3.3)66 (5.1)

 

Table 2. Baseline Characteristics of the Study Population by Academic Years
 
2001-20022003-20042005-20062007-20082009-2010
Percentage in parentheses. DVT: deep vein thrombosis; MSK: musculosquelettal; PE: pulmonary embolism; psy: psychiatric; VTE: venous thromboembolic event.
Number of patients254326272237214
Male gender107 (41.9)141 (43.3)111 (40.8)114 (48.1)95 (44.3)
Female gender147 (58.1)185 (56.8)161 (59.2)123 (51.9)118 (55.7)
Average length of stay (days)19.918.817.016.518.2
Age on admission (year)66.869.971.770.871.6
Diagnosis on admission
 Non-specified generalized weakness25 (9.5)21 (6.4)28 (10.3)20 (8.4)21 (9.4)
 Neurologic disease28 (11.1)53 (16.3)25 (9.2)25 (10.6)22 (10.4)
 Pulmonary disease7 (2.8)5 (1.5)5 (1.8)19 (8.0)9 (4.2)
 Cardiovascular disease21 (8.3)19 (5.8)24 (8.8)17 (7.2)16 (7.6)
 Gastrointestinal disease7 (2.8)15 (4.6)20 (7.4)13 (5.5)10 (4.7)
 Nephro - endo - metab14 (5.5)15 (4.6)25 (9.2)12 (5.1)6 (2.8)
 Hematologic disease (no cancer)11 (4.4)11 (3.4)9 (3.3)7 (2.9)6 (2.8)
 Neoplasia72 (28.5)77 (23.6)37 (13.6)44 (18.6)35 (16.5)
 Rhumatologic and inflammatory2 (0.8)14 (4.3)8 (2.9)9 (3.8)7 (3.3)
 Infectious disease53 (20.9)66 (20.2)46 (16.9)48 (20.3)64 (30.2)
 Substance withdrawal or intox7 (2.8)6 (1.8)6 (2.2)6 (2.5)8 (3.8)
 Dermato - psy - MSK - allergy7 (2.77)24 (7.36)19 (6.98)17 (7.17)9 (4.24)
 Thromboembolic disease00000
 Palliative care52 (20.6)34 (10.4)52 (19.1)25 (10.6)32 (15.1)
Risk factors for VTE
 Congestive heart failure55 (21.8)60 (18.4)99 (36.4)45 (19.0)46 (21.7)
 Severe respiratory condition89 (35.2)102 (31.3)106 (39.0)91 (38.4)76 (35.9)
 Active cancer or on treatment84 (32.8)108 (33.1)77 (28.3)66 (27.9)53 (25.0)
 Previous DVT or PE18 (7.1)21 (6.4)19 (7.0)13 (5.5)14 (6.1)
 Systemic infection or sepsis81 (32.0)104 (31.9)64 (23.5)67 (28.3)96 (45.3)
 Acute neurologic disease44 (17.4)90 (27.6)51 (18.8)48 (20.3)50 (23.6)
 Inflammatory bowel disease3 (1.2)5 (1.5)3 (1.1)11 (4.6)6 (2.8)
 Post-op or trauma < 3 months11 (4.4)24 (7.4)10 (3.7)9 (3.8)8 (3.8)

 

Table 3. Risk Factors, VTE and Complications Rate Between the Patients With or Without Thromboprophylaxis
 
Patients with thromboprophylaxisPatients without thromboprophylaxis
Percentage in parentheses. DVT: deep vein thrombosis; HIT: heparin-induced thrombocytopenia; PE: pulmonary embolism; VTE: venous thromboembolic event.
Number of patients615687
Palliative care94 (15.3)101 (14.7)
Risk factors for VTE
 Congestive heart failure162 (26.4)143 (20.9)
 Severe respiratory condition225 (36.6)239 (34.8)
 Active cancer or on treatment171 (27.8)216 (31.5)
 Previous DVT or PE42 (8.8)42 (6.1)
 Systemic infection or sepsis214 (34.9)198 (28.9)
 Acute neurologic disease150 (24.4)133 (19.4)
 Inflammatory bowel disease13 (2.1)15 (2.2)
 Post-op or trauma < 3 months54 (8.8)12 (1.8)
Thromboembolic events
 Total thromboembolic disease21 (3.4)11 (1.6)
 Proximal DVT5 (0.8)4 (0.6)
 Distal DVT7 (1.1)6 (0.9)
 Pulmonary embolism10 (1.6)2 (0.3)
 Fatal pulmonary embolism3 (0.5)1 (0.1)
Complications
 Total bleeding events50 (8.1)61 (8.9)
 Non-severe bleeding21 (3.4)35 (5.1)
 Severe bleeding29 (4.7)26 (3.8)
 HIT1 (0.2)0