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Table 3.3.1 Ventilation tube types – effects on function and complications.AuthorYearReferenceCountryStudydesignPatientpopulationInterventionControlCarignan et al2006[110]CanadaObservationalstudyn=58Age: mean 5.7 yearsGoode T-tube modified bycutting shaft and flangesKinnari et al2005[111]FinlandRCTDouble-blindRandomisationbetweenearsn=170SOM >3 monthsrAOM 3 episodes/6 monthsEffusion aspiratedHSA (human serumalbumin) coated tubes:n=170 earsUncoated: n=170 earsAll were titanium tubesCoates et al1998[113]AustraliaRCTDoubleblindn=100Age: 10 months–10.3 years (mean4.4 years)Silver oxide coating: n=48Silicon surface coating:n=49Control: right ear: n=97SOM or rAOMChole et al1995[112]CanadaRCTDoubleblindn=125Age: 1.5–149 months,(median 37 months)51 SOM, 63 rAOM13 SOM/rAOM withcleft palates61 children: tube A-rightear; tube B-left ear64 children: tube A-left ear,tube B-right earA=Donaldson tube impregnatedwith silver oxideB=Donaldson withoutsilver oxide, dyed black130Rörbehandling vid inflammation i mellanörat

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