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Table 2 Characteristics of the studies

From: Effects of endovascular and surface cooling on resuscitation in patients with cardiac arrest and a comparison of effectiveness, stability, and safety: a systematic review and meta-analysis

Author, year,[reference]

Study type

Cooling methods

Temperature measurement

Outcome

Endovascular

surface

Flemming, 2006 [22]

Retrospective cohort study

Coolgard

TheraCool device, cooling blankets, and cold infusions

Unclear

â‘¡â‘¢ III

Arrich,2007 [23]

Retrospective cohort study

Coolgard

Ice packs, cooling blankets, and cold fluids

Unclear

①③④⑨

Flint, 2007 [24]

Retrospective study

Unclear

Ice packs, manually regulated cooling blanket

Rectal

①②⑥⑦III

Fink, 2008 [25]

Observational study

Coolgard

ThermoWrap

Unclear

â‘¡â‘¥ I, III

Ferreira, 2009 [26]

Retrospective analysis

Coolgard

Surface cooling

Pulmonary artery

②⑨ I, IV

Gillie, 2010 [27]

Retrospective cohort study

Coolgard

Cold fluids, polythene bags

Bladder

②③④⑥⑦⑨⑩II, III, IV

Caulfield, 2011 [28]

Longitudinal comparative study

Unclear

Cold-water-circulating cooling blankets (Mul-T-Blanket with Gaymar

Medi Therm III) and ice bags

Esophageal

②⑥⑦ III

Knapik, 2011 [29]

Prospective study

Coolgard

Uncontrolled surface cooling,+ ice-cold intravenous fluids +

ce-cold gastric lavage

Bladder, nasopharyngeal

②③④⑦

Tomte, 2011 [30]

Single-center study

Coolgard

Arctic Sun, plates cooling

Unclear

â‘¡â‘£I, III, IV

Waard, 2015 [31]

Retrospective study

Coolgard

Non-invasive surface cooling Medi-Therm, Gaymar

Esophageal

①⑤ I II

Forkmann, 2015 [32]

Prospective study

Coolgard

Circulating water blanket (MEDUTEK Cooling Blanket)

Bladder

①②③⑥I, III

Oh, 2015 [33]

Retrospective study

Thermogard

Hydrogel pads, body wraps, and other mattresses

Unclear

â‘¡III, IV

Rosman, 2016 [34]

Retrospective study

Coolgard

Cold infusions, ice packs, and cooling blankets

No esophageal bladder

①②⑥⑧I, II

Kim, 2018 [35]

Prospective study

Unclear

ArcticSun Blanketrol III, EMCOOLS Flex.Padâ„¢

Unclear

III, IV

Sonder, 2018 [36]

Prospective study

Thermogard

ArcticSun

Esophageal, deep esopharyngeal,

bladder, rectal

â‘ III, IV

De Fazio, 2019 [37]

Retrospective analysis

Unclear

Unclear

Urinary, esophageal, or

intravascular

III IV

Hoedemaekers, 2007 [38]

Randomized control study

Coolgard

ArcticSun

Rectal

①⑦ II

Pittl, 2013 [39]

Randomized study

Coolgard

ArcticSun

Bladder

①②⑤ III, IV

Deye, 2015 [40]

Randomized study

Coolgard

Fans, a homemade tent, and ice packs

Bladder, esophageal

①②③④⑧⑨III IV

Look, 2017 [41]

Randomized controlled trial

Thermogard

ArcticSun 2000

Bladder

②③⑦⑨III, IV

  1. ① Cooling rate, ② induced cooling time, ③ patients achieving target temperature, ④ maintain time, ⑤ body temperature during maintenance phase, ⑥ body temperature fluctuation, ⑦ overcooling, ⑧rewarming rate, ⑨rewarming time, ⑩ rebound hyperthermia, I length of stay in ICU, II survival rate in ICU, III survival in hospital, IV good neurological function