Estimativa da dose efetiva acumulada em pacientes com doenças cardiovasculares submetidos a múltiplos procedimentos radiológicos
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Este estudo teve como objetivo realizar o levantamento da dose efetiva acumulada CED recebida por pacientes com doenças cardiovasculares, submetidos a múltiplos procedimentos diagnósticos e terapêuticos em um hospital universitário na região sul do Brasil. O estudo foi conduzido por meio de uma pesquisa quantitativa, descritiva, exploratória e documental retrospectiva, na qual foi analisada a exposição à radiação em 378 pacientes, totalizando 658 exames realizados no período de 2022-2023. Dentre os pacientes houve uma predominância de 60,3% do sexo masculino e 39,7% do sexo feminino. A idade dos participantes variou entre 23 e 89 anos, sendo a maioria com 71 anos. Foram identificados 63 tipos diferentes de exames/procedimentos, sendo em média, realizados 2,04 exames/procedimentos por paciente. Os exames mais realizados foram CAT (n=208), ACTP (n=86), seguido por CPM (n=82). Foram registrados 136 diferentes CIDs associados aos exames realizados, destacando-se alta prevalência de exames associados a condições cardíacas e cerebrovasculares. As indicações mais frequentes foram IAM (I21.9), angina pectoris (I20) e doença aterosclerótica do coração (I25). A dose efetiva média (E) foi de 16,97±22,01 mSv, com a maior dose proveniente de um procedimento de ACTP (312,02 mSv) e a menor de uma tomografia computadorizada dental (0,07 mSv). 39,68% dos pacientes receberam E <20 mSv, entretanto foi observado que as E máximas para um único exame podem apresentar valores bem superiores as este, um exemplo é o exame de ACTP que apresenta E média de 35,16±39,13 mSv e valor de E variando desde 2,37-312,02 mSv. A dose efetiva acumulada (CED) média foi de 27,44±35,44 mSv (IC 95% 23,87-31,01 mSv), com o maior percentual dos pacientes (38,09%) recebendo CED ≤15 mSv. No entanto, 5,03% (n=19) dos pacientes receberam CED ≥100 mSv, com um grupo significativo (42,10%) ultrapassando os 150 mSv. A dose média para pacientes com exposição superior a 100 mSv foi 154,18±52,86 mSv (IC 95% 128,7-179,66 mSv), com a tomografia computadorizada contribuindo para a maior parte da dose acumulada nesta categoria.
This study aimed to assess the cumulative effective dose (CED) received by patients with cardiovascular diseases, undergoing multiple diagnostic and therapeutic procedures in a public hospital in the southern region of the country. The study analyzed radiation exposure in 378 patients, totaling 658 exams in the time frame of 2022-2023, with a predominance of 60.3% male and 39.7% female. The age of the participants ranged from 23 to 89 years, with the majority being 71 years old. Sixty-three different types of exams/procedures were identified, with an average of 2.04 exams/procedures per patient. The most performed exams were diagnostic coronary angiography (n=208), PTCA (n=86), followed by MPI (n=82). There were 136 different clinical information associated with the exams performed, highlighting a high prevalence of exams associated with cardiac and cerebrovascular conditions. The most frequent indications were AMI (I21.9), angina pectoris (I20), and atherosclerotic heart disease (I25). The average effective dose (E) was 16.97±22.01 mSv, with the highest dose coming from an PTCA procedure (312.02 mSv) and the lowest from a dental computed tomography (0.07 mSv). 39.68% of patients received E<20 mSv; however, it was observed that the maximum E for a single exam can present values much higher than this, an example is the PTCA exam which has an average E of 35.16±39.13 mSv and E value ranging from 2.37-312.02 mSv. The average cumulative effective dose (CED) was 27.44±35.44 mSv (95% CI 23.87-31.01 mSv), with the majority of patients receiving CED ≤15 mSv. However, 5.03% (n=19) of the patients received CED ≥100 mSv, with a significant group (42.10%) exceeding 150 mSv. The average dose for patients with exposure over 100 mSv was 154.18±52.86 mSv (95% CI 128.7-179.66 mSv), with computed tomography contributing to the majority of the accumulated dose in this category.
This study aimed to assess the cumulative effective dose (CED) received by patients with cardiovascular diseases, undergoing multiple diagnostic and therapeutic procedures in a public hospital in the southern region of the country. The study analyzed radiation exposure in 378 patients, totaling 658 exams in the time frame of 2022-2023, with a predominance of 60.3% male and 39.7% female. The age of the participants ranged from 23 to 89 years, with the majority being 71 years old. Sixty-three different types of exams/procedures were identified, with an average of 2.04 exams/procedures per patient. The most performed exams were diagnostic coronary angiography (n=208), PTCA (n=86), followed by MPI (n=82). There were 136 different clinical information associated with the exams performed, highlighting a high prevalence of exams associated with cardiac and cerebrovascular conditions. The most frequent indications were AMI (I21.9), angina pectoris (I20), and atherosclerotic heart disease (I25). The average effective dose (E) was 16.97±22.01 mSv, with the highest dose coming from an PTCA procedure (312.02 mSv) and the lowest from a dental computed tomography (0.07 mSv). 39.68% of patients received E<20 mSv; however, it was observed that the maximum E for a single exam can present values much higher than this, an example is the PTCA exam which has an average E of 35.16±39.13 mSv and E value ranging from 2.37-312.02 mSv. The average cumulative effective dose (CED) was 27.44±35.44 mSv (95% CI 23.87-31.01 mSv), with the majority of patients receiving CED ≤15 mSv. However, 5.03% (n=19) of the patients received CED ≥100 mSv, with a significant group (42.10%) exceeding 150 mSv. The average dose for patients with exposure over 100 mSv was 154.18±52.86 mSv (95% CI 128.7-179.66 mSv), with computed tomography contributing to the majority of the accumulated dose in this category.
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VIERO, Ana Paula. Estimativa da dose efetiva acumulada em pacientes com doenças cardiovasculares submetidos a múltiplos procedimentos radiológicos. 2024. Dissertação (Mestrado Profissional em Proteção Radiológica) – Instituto Federal de Santa Catarina, Florianópolis, 2024.
