Objective To determine the association between hospital-acquired pneumonia diagnosis and the factors: length of ER stay, cerebrovascular territory, Glasgow Coma Scale score at admission, Diabetes mellitus diagnosis in adult patients with ischemic cerebrovascular disease. Methods Case-control study (Cases: Adult patients diagnosed of ischemic stroke who also had hospital-acquired pneumonia diagnosis. Controls: Adult patients diagnosed of ischemic stroke who also had hospital acquired-pneumonia diagnosis). This information was obtained from the review of medical record of the “Hospital Regional Docente de Trujillo” and the variables for this study were: length of ER stay, cerebrovascular territory, Glasgow coma scale score at admission and Diabetes mellitus diagnosis. Results The associated factors to hospital-acquired pneumonia were length of ER stay greater than 24 hours (OR: 3.89; I.C: 95% 1.86-8.13) and Glasgow Coma Scale score at admission less than or equal to 9 (OR: 9.43 I.C: 95% 3.74-23.75). Conclusions Length of ER stay greater than 24 hours and Glasgow coma scale score at admission less than or equal to 9 are associated factors and become risk factors for hospital-acquired pneumonia in adult patients who were diagnosed of ischemic stroke.Objetivo Determinar si el tiempo de permanencia en emergencia, territorio vascular comprometido, escala de coma de Glasgow al ingreso y diabetes mellitus son factores asociados a neumonía intrahospitalaria en pacientes adultos con enfermedad cerebro vascular isquémica. Método Estudio de casos y controles (Casos: pacientes adultos con neumonía intrahospitalaria con diagnóstico de enfermedad cerebrovascular isquémica y Controles: pacientes adultos sin neumonía intrahospitalaria con diagnóstico de enfermedad cerebrovascular isquémica). Esta información se obtuvo de la revisión de historias clínicas del Hospital Regional Docente de Trujillo y se consideró las siguientes variables a estudiar: tiempo de permanencia en emergencia, territorio vascular comprometido, escala de coma de Glasgow al ingreso y diabetes mellitus. Resultados Se determinaron como factores asociados: el tiempo de permanencia en emergencia mayor a 24 horas (OR: 3.89; I.C: 95% 1.86-8.13) y la escala de coma de Glasgow al ingreso menor o igual a 9 (OR: 9.43 I.C: 95% 3.74-23.75). Conclusiones Permanencia en emergencia mayor a 24 horas y escala de coma de Glasgow al ingreso menor o igual a 9 son factores asociados y además constituyen factores de riesgo para neumonía intrahospitalaria en pacientes adultos con enfermedad cerebro vascular isquémica.Tesis