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Table 1 Rates of infections, mortality and infection related mortality in major studies on primary systemic vasculitis

From: Value of anti-infective chemoprophylaxis in primary systemic vasculitis: what is the evidence?

Study

Type of study

Indication

Intervention

Prophylaxis

N

Follow up (months)

Reported infections (classified as serious)

Type of serious infections (number of patients)a

Total deaths (%)

Death due to or in conjunction with infection (% of total deaths)

Type of infection leading to death (number of patients) b

Giant cell arteritis

   Matteson et al. 1996 [4]

CS

 

GC

NI

205

84

NI

NI

49 (24)

3 (6)

NI

   Chevalet et al. 2000 [5]

RCT

 

Oral GC ± initial GC iv pulse

None

164

12

31 (22)

Pneu (20), Sep (1), Abs (1)

5 (3)

0

NA

   Jover et al. 2001 [6]

RCT

 

GC ± MTX

INH AA

42

24

18 (4)

Pneu (1), TB (1), PN (1), CC (1)

0

0

NA

   Hoffman et al. 2002 [7]

RCT

 

GC ± MTX

None

98

12

NI (3)

Pneu (1)

3 (3)

1 (33)

Pneu (1)

   Mazlumzadeh et al. 2006 [8]

RCT

 

Oral GC ± initial GC iv pulse

None

27

12

18 (0)

NA

0

0

NA

   Hoffman et al. 2007 [9]

RCT

 

GC ± Inflix

TS

44

5.5

NI (2)

Histo (1), VZV (1)

0

0

NA

   Martinez-Taboada et al. 2007 [10]

RCT

 

GC ± Eta

INH

17

12

8 (0)

NA

0

0

NA

Takayasu arteritis

   Hoffman et al. 2004 [11]

UCT

 

GC + Inflix or Eta

 

15

22

  

0

0

NA

Churg-Strauss syndrome/polyarteritis nodosa

   Cohen et al. 2007 [12]

RCT

I

GC + 6 pulse CY versus 12 pulse CY

TS recommended

48

42

21 (NI)

NI

4 (8)

3 (75)

CMV (1), Pneu (1) and NI

   Gayraud et al. 1997 [13]

RCT

I

GC + pulse CY versus oral CY

None

25

60.8

7 (NI)

NI

1 (4)

1 (100)

Pneu (1), Sep (1), Asp (1)

   Guillevin et al. 1995 [14]

RCT

I

GC + pulse CY ± PE

TS

62

33

NI (9)

TB (3), Pneu (3), Sep (2), Sig (1)

11 (17)

2 (18)

Sep (1) and NI

   Guillevin et al. 1992 [15]

RCT

I

GC ± PE

None

78

44

NI

NI

15 (19)

2 (13)

Sep (1) and NI

   Guillevin et al. 1991 [16]

CS

I

GC + PE ± CY

None

71

69

NI

NI

19 (27)

5 (26)

Pneu/Sep (4), TB (1)

Microscopic polyangitis

   Nachman et al. 1996 [17]

CS

I

GC + CY

NI

107

44

NI

NI

6 (6)

2 (33)

Sep (2)

Wegener's granulomatosis

   Metzler et al. 2007 [18]

RCT

M

GC + Lef or MTX

None

54

21

25 (0)

NA

0

0

NA

   WGET Research Group 2005 [19]

RCT

I, M

GC + CY/MTX ± Eta

TS

174

27

NI

NI

6 (3.5)

2 (33)

Sep (2)

   Schmitt et al. 2004 [20]

UCT

I

GC + ATG

Optional TS, optional fungi, optional CMV

15

21.8

NI (6)

Pneu (2), Abs (1), UTI (1), CMV (1), Col (1)

2 (13)

1 (50)

Pneu (1)

   Metzler et al. 2004 [21]

UCT

M

GC + Lef

None

20

21

9 (1)

Pneu (1)

0

0

NA

   Bligny et al. 2004 [22]

CS

I, M

Mainly GC + CY

TS or Penta in most patients

93

54

NI (54)

PCP (12), Asp (5), VZV (3), CMV (6), Sep (8), Papo (1), TB (4), Abs (1), Toxo (2)

25 (27)

13 (52)

Sep (4), PCP (5), CMV (2), Pneu (3), Asp (3), TB (1), Papo (1)

   Reinhold-Keller et al. 2002 [23]

UCT

M

GC + MTX

None

71

25.2

7 (0)

NA

2 (3)

0

NA

   Mahr et al. 2001 [24]

CS

I

GC + CY

TS in most patients

49

23

NI (31)

PCP (19), Pneu (3), Asp (5), CMV (5), TB (2), VZV (2), Papo (1), Sep (2), SA (1)

18 (37)

7 (39)

PCP (5), Sep (1), Pneu (3), Asp (2), Papo (1), CMV (1)

   Reinhold-Keller et al. 2000 [25]

CS

I, M

Mainly GC + CY followed by MTX or TS

TS in case of CY

155

84

NI (56)

Pneu (32), Sep (10), CMV (3), PCP (1)

22 (14)

5 (23)

Sep (4), Pneu (1)

   Guillevin et al. 1997 [26]

RCT

I

GC + oral CY versus GC + pulse CY

TS in most patients after high incidence of PCP in the first patients

50

27

NI (25)

Pneu (3), Sep (3), SA (1), CMV (4), Papo (1), PCP (10)

19 (38)

9 (47)

PCP (6), Pneu (1), Sep (1), Papo (1)

   de Groot et al. 1996 [27]

RCT

M

MTX versus TS ± GC

No additional

65

22

NI

NI

0

0

NA

   Stegeman et al. 1996 [28]

RCT

M

Placebo versus TS

No additional

81

24

NI

NI

1 (1.2)

0

NA

   Sneller et al. 1995 [29]

UCT

I

GC + MTX

None

42

19

NI (4)

PCP (4)

3 (7)

2 (67)

PCP (2), Cryp (1)

ANCA-associated vasculitis

   Pagnoux et al. 2008 [30]

RCT

M

GC + MTX versus Aza

TS or Penta

126

12

46 (6)

Sep (2)

1 (0.8)

1 (100)

Sep (1)

   Walsh et al. 2008 [31]

UCT

I

GC + Campath-1H

Acyc, fungi

71

60

31 (21)

Staph (10), CMV (2), PCP (2), Asp (2), Sal (19), Pseu (1), E. coli (1), Acti (1)

31 (44)

12 (39)

NI

   Jayne et al. 2007 [1]

RCT

I

GC + oral CY + PE versus iv GC pulse

TS suggested

137

12

61 (37)

NI

35 (26)

19 (54)

NI

   de et al. Groot 2005 [32]

RCT

I

GC + CY versus MTX

Optional TS

100

18

18 (8)

CMV (1), SA (1), Cory (1), Pneu (2), UTI (1)

4 (4)

1 (25)

CMV (1)

   Booth et al. 2004 [33]

UCT

I

GC + Inflix ± CY

TS, fungi

32

16.8

NI (7)

Pneu (3), Sep (1), Abs (1), Opht (1)

2 (6)

1 (50)

Pneu (1)

   Birck et al. 2003 [34]

UCT

I

GC + DSG

NI

20

12

NI

NI

1 (5)

1 (100)

PCP (1)

   Jayne et al. 2003 [35]

RCT

I, M

GC + oral CY followed by GC + oral CY versus Aza

TS recommended

155

18

33 (11)

NI

8 (5)

5 (63)

Pneu (2) and NI

   Haubitz et al. 1998 [36]

RCT

I

GC + oral CY versus pulse CY

None

47

40

NI (13)

Sep (4), Pneu (5), VZV (1), CMV (1), Endo (1), SD (1)

3 (6)

3 (100)

Sep (3)

   de Groot et al. 2009 [37]

RCT

I

GC + oral CY versus pulse CY

TS

149

18

51 (17)

Pneu (3), Sep (3), Div (1), PCP (1), HSV (1), Abs (1)

14 (9.4)

6 (43)

Sep (6), PCP (1)

  1. Large differences in infection-related mortality between the different indications can be observed. Mortality from infections is much less frequent in giant cell arteritis than in ANCA-associated vasculitis. In small vessel vasculitis the phase of induction of remission confers much more susceptibility to infections than the maintenance phase. Bacterial infections are the most frequently mentioned causes of death. Types of infections are given as clinical conditions or causative agents as information was available. aThe sum might be smaller than the number of serious infections due to missing information. bThe sum might be higher than the number of deaths as in some patients more than one infection was involved. Types of study are: CS, cohort study; RCT, randomized controlled trial; UCT, open label uncontrolled trial. Indications are: I, induction therapy; M, maintenance. Interventions are: ATG, anti-thymocyte globulin; Aza, azathioprine; CY, cyclophosphamide; DSG, deoxyspergualin; Eta, etanercept; GC, glucocorticoide; Inflix, infliximab; Lef, leflunomide; MTX, methotrexate; PE, plasma separation; TS, trimopthoprim/sulfomethoxazole. Prophylaxis: Acyc, acyclovir; fungi, anti-fungal prophylaxis using ether nystatin, fluconazole or amphotericin; INH, isoniazid; Penta, pentamidine; TS, trimopthoprim/sulfomethoxazole. Types of infection are: Abs, abscess; Acti, Actinomyces sp.; Asp, aspergillosis; CC, cholecystitis; CMV, cytomegalovirus; Col, colitis; Cory, Corynebacterium sp.; Cryp, cryptococccus; Div, diverticulitis; End, endocarditis; Histo, histoplasmosis; HSV, herpes simplex virus; Opht, ophtalmitis; Papo, papovavirus encephalitis; PCP, Pneumocystis jiroveci pneumonia; PN, pyelonephritis; Pneu, pneumonia; Pseu, Pseudomonas sp.; SA, septic arthritis; Sal, Salmonella sp.; SD, spondylodiscitis; Sep, septicemia; Sig, sigmoiditis; Staph, Staphylococcus sp.; TB, tuberculosis; Toxo, toxoplasmosis; UTI, urinary tract infection; VZV, varicella zoster virus. Other abbreviations: AA, as appropriate; ANCA, antineutrophil cytoplasmic antibody; iv, intravenous; NA, not applicable; NI, no information.