MediastinitisMediastinumInflammationMediastinal NeoplasmsSternumNegative-Pressure Wound TherapySternotomySurgical Wound InfectionRetropharyngeal AbscessMediastinal DiseasesThoracotomyDebridementMediastinal CystPeriodontal AbscessFocal Infection, DentalCardiac Surgical ProceduresWound Closure TechniquesTomography, X-Ray ComputedEsophageal PerforationSclerosisRadiography, ThoracicSurgical Wound DehiscenceTherapeutic IrrigationOmentumSuperior Vena Cava SyndromeDrainageSurgical FlapsMediastinoscopyInflammation MediatorsMycoplasma hominisTreatment OutcomeFatal OutcomeEsophageal FistulaMediastinal EmphysemaSuppurationPostoperative ComplicationsGoiter, SubsternalCoronary Artery BypassThymus NeoplasmsPleurisy