RESUMO
This study aimed to evaluate humoral responses after vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) of patients with inflammatory bowel disease (IBD). Patients with IBD enrolled in a tertiary outpatient unit were followed up between September 2021 and September 2022 via serial blood collection. Immunoglobulin G antibody titers against SARS-CoV-2 were measured before administration and 1 and 6 months after the administration of two doses of different vaccination regimens. The results were compared with those of a healthy control group obtained during the same period. The mean pre-vaccination antibody titers were 452.0 and 93.3 AU/mL in the IBD (n = 42) and control (n = 89) groups, respectively. After two doses of the vaccine, the titers significantly increased in both groups (IBD, 8568.0 AU/mL; control, 7471.0 AU/mL; p < 0.001). One month after the second dose, no significant differences were observed between the two groups (p = 0.955). Significant differences between vaccination schemes in the IBD group were observed, with higher titers in those who received Pfizer, younger patients (p < 0.005), and those with a previous coronavirus disease 2019 (COVID-19) infection (p < 0.012). The use of immunosuppressants and immunobiologicals did not affect the overall humoral response to COVID-19 vaccine in patients with IBD, but specific vaccine regimens, age, and previous coronavirus infection significantly did. This study reinforces the positive impact of booster doses and the safety of SARS-CoV-2 vaccination.
RESUMO
ABSTRACT Crohn's disease (CD) is a chronic transmural disease process with approximately 10% of patients developing spontaneous intra-abdominal abscess during the first 5 years after the diagnosis. The symptoms are often nonspecific. The treatment modalities include the use of wide-spectrum antibiotics, imaging-guided percutaneous drainage (PD) and surgical drainage with or without resection. The best initial treatment strategy has not been settled controversial, as there are only retrospective studies with small sample sizes available in the literature. The majority of the patients would eventually need surgery. However a highly selected patient population with small abscess in the absence of fistulas or bowel strictures, especially those naive to immunomodulators or biologics, may respond to medical treatment alone with wide-spectrum antibiotics. The increased use of PD drainage in the last few years has been shown to reduce postoperative morbidities and risk of fecal diversion, allowing for subsequent elective surgery. Varied success rates of PD drainage have been reported in the literature. The initial surgical intervention of CD-related spontaneous abdominal sepsis is mandatory in patients with diffuse peritonitis due to free perforation. Surgery is also indicated in those with failed initial medical treatment and/or PD. This review article was aimed to evaluate the treatment modalities for spontaneous intra-abdominal abscess in CD patients and propose an algorithm for the best management of this complication.
RESUMO A doença de Crohn (DC) é um processo patológico transmural crônico, em que aproximadamente 10% dos pacientes desenvolvem um abscesso intra-abdominal espontâneo durante os primeiros 5 anos após o diagnóstico. Com frequência os sintomas são inespecíficos. As modalidades terapêuticas são o uso de antibióticos de amplo espectro, drenagem percutânea (DP) orientada por imagem, e drenagem cirúrgica com ou sem ressecção. A melhor estratégia terapêutica inicial ainda não ficou estabelecida e há controvérsias, visto que a literatura conta apenas com estudos retrospectivos com pequenas amostras. Em sua maioria, os pacientes acabarão necessitando de cirurgia. Mas uma população altamente selecionada de pacientes, com pequeno abscesso na ausência de fístulas ou constrições intestinais, especialmente aqueles que jamais foram medicados com imunomoduladores ou agentes biológicos, podem responder exclusivamente ao tratamento clínico com antibióticos de amplo espectro. Foi demonstrado que o uso mais frequente da DP nos últimos anos diminui as morbidades pós-operatórias e o risco de desvio fecal, o que possibilita uma subsequente cirurgia eletiva. Na literatura, têm sido relatados percentuais de sucesso variados com a DP. A intervenção cirúrgica inicial para a sepse abdominal espontânea relacionada à DC é obrigatória em pacientes com peritonite difusa, devido à perfuração livre. Também há indicação cirúrgica naqueles pacientes que não conseguiram obter sucesso com o tratamento clínico inicial e/ou DP. Esse artigo de revisão teve por objetivo avaliar as modalidades terapêuticas para o abscesso intra-abdominal espontâneo em pacientes com DC; além disso, propõe um algoritmo para o melhor tratamento dessa complicação.