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Table 1 Characteristics of included trials

From: Trials directly comparing alternative spontaneous breathing trial techniques: a systematic review and meta-analysis

Author and year

Interventions

Country

Publication Type

Population

Duration of ventilation at inclusion

Feeley 1975 [18] (n = 25)

T-piece/PEEP 5 cmH2O vs T-piece

USA

Full

Adult

Not reported

Hastings 1980 [19] (n = 18)

IMV/CPAP 5 cmH2O vs T-piece/CPAP 5 cmH2O

USA

Full

Adult

Perioperative

Prakash 1982 [20] (n = 28)

IMV vs SVT (on ventilator)

The Netherlands

Full

Adult

Perioperative

Koller 1983 [21] (n = 45)

CPAP 10 cmH2O vs T-piece/ZEEP

Austria

Full

Adult

Perioperative

Jones 1991 [22] (n = 106)

CPAP 5 cmH2O vs T-piece/ZEEP

USA

Full

Adult

Not reported

Abalos 1992 [23] (n = 62)

SIMV vs CPAP 4 cmH2O vs T-piece

USA

Full

Adult

Perioperative

Bailey 1995 [24] (n = 82)

T-piecea vs CPAP 5 cmH2O vs CPAP 10 cmH2O

England

Full

Adult

Perioperative

Schinco 1995 [25] (n = 30)

PS 5 cmH2O/CPAP 5 cmH2O vs CPAP 5 cmH2O

USA

Abstract

Adult

Perioperative

Esteban 1997 [26] (n = 484)

T-piece vs PS 7 cmH2O

Spain and South America

Full

Adult

>48 hours

Holanda 2000 [27] (n = 35)

T-piece vs PS

Brazil

Abstract

Adult

>48 hours

Farias 2001 [28] (n = 257)

T-piece vs PS 10 cmH2O ± PEEP 5 cmH2O

Argentina

Full

Pediatric

>48 hours

Haberthur 2002 [29] (n = 90)

PS 5 cmH2O/PEEP 5 cmH2O vs ATC/PEEP 5 cmH2O vs T-piece

Switzerland

Full

Adult

>24 hours

Koksal 2004 [30] (n = 60)

PS < 10 cmH2O/PEEP < 5 cmH2O vs CPAP < 5 cmH2O vs T-piece

Turkey

Full

Adult

>48 hours

Matic 2004 [31] (n = 260)

T-piece vs PS 8 cmH2O

Croatia

Full

Adult

>48 hours

Cohen 2006 [32] (n = 99)

ATCb/CPAP 5 cmH2O vs CPAP 5 cmH2O

Israel

Full

Adult

>24 hours

Liang 2006 [33] (n = 97)

ATC vs T-piece

Taiwan

Abstract

Adult

>4 days

Colombo 2007 [34] (n = 120)

T-piece vs PS 7 cmH2O/PEEP 5 cmH2O

Brazil

Full

Adult

>48 hours

Matic 2007 [35] (n = 136)

T-piece vs PS (not specified)

Croatia

Full

Adult

>24 hours

Fayed 2008 [36] (n = 30)

ATCb/CPAP 5 cmH2O vs CPAP 5 cmH2O

Egypt

Abstract

Adult

>24 hours

Cohen 2009 [37] (n = 180)

ATCb/CPAP 5 cmH2O vs PS 7 cmH2O/CPAP 5 cmH2O

Israel

Full

Adult

>24 hours

Zhang 2009 [38] (n = 208)

T-piece vs PS 5 cmH2O/PEEP 5 cmH2O

China

Full

Adult

Not reported

Figueroa-Casas 2010 [39] (n = 122)

ATCb/PEEP 5 cmH2O vs CPAP 5 cmH2O

USA

Full

Adult

>24 hours

Molina-Saldarriaga 2010 [40] (n =50)

CPAPc vs T-piece

Colombia

Full

Adult

>48 hours

Cekman 2011 [41] (n = 40)

CPAP < 5 cmH2O vs T-piece

Turkey

Full

Adult

>48 hours

Vats 2012 [42] (n = 40)

T-piece vs PS 7 cmH2O

India

Full

Adult

Not reported

El-beleidy 2013 [43] (n = 36)

ATCb/CPAP 5 cmH2O vs PS 6–10 cmH2O/CPAP 5 cmH2O

Egypt

Full

Pediatric

>24 hours

Lourenco 2013 [44] (n = 30)

T-piece vs PS (not specified)

Brazil

Full

Adult

Perioperative

Sherif 2013 [45] (n = 100)

PS (not specified) vs PS/ATC

Egypt

Abstract

Adult

Not reported

Bilan 2015 [46] (n = 51)

CPAP vs T-piece

Iran

Full

Pediatric

Not reported

Chittawatanarat 2015 [47] (n = 520)

T-piece vs PS 7 cmH2O/PEEP < 5 cmH2O

Thailand

Abstract

Adult

>12 hours

Teixeira 2015 [48] (n = 160)

PS 7 cmH2O/PEEP 5 –8 cmH2O vs PAV+/PEEP 5 –8 cmH2O vs T-piece

Brazil

Full

Adult

>24 hours

  1. PEEP positive end-expiratory pressure, IMV intermittent mandatory ventilation, CPAP continuous positive airway pressure, SVT spontaneous ventilation trial, ZEEP zero end-expiratory pressure, SIMV synchronized intermittent mandatory ventilation, PS pressure support, ATC automatic tube compensation; PAV+ proportional assist ventilation with load adjustable gain factors
  2. aT-piece with CPAP 0 cmH2O
  3. bATC with 100% compensation
  4. cCPAP set to 85% of intrinsic PEEP