MediastinitisMediastinumSternumMediastinal NeoplasmsNegative-Pressure Wound TherapySternotomySurgical Wound InfectionCardiac Surgical ProceduresRetropharyngeal AbscessMediastinal DiseasesThoracotomyDebridementMediastinal CystPeriodontal AbscessFocal Infection, DentalTomography, X-Ray ComputedWound Closure TechniquesEsophageal PerforationMyocytes, CardiacSclerosisRadiography, ThoracicSurgical Wound DehiscenceTherapeutic IrrigationSuperior Vena Cava SyndromeOmentumDrainageSurgical FlapsMediastinoscopyCardiac OutputTreatment OutcomeHeartMycoplasma hominisFatal OutcomeCoronary Artery BypassPostoperative ComplicationsEsophageal FistulaMediastinal EmphysemaGoiter, SubsternalSuppurationArrhythmias, CardiacThymus Neoplasms