RT journal article
T1 The prognostic value of toxin B and binary toxin in Clostridioides difficile infection
A1 López Cardenas, Salvador
A1 Torres Martos, Eva
A1 Mora Delgado, Juan
A1 Sánchez Clavo, Juan Manuel
A1 Santos Peña, Marta María
A1 Zapata López, Ángel
A1 López Prieto, Maria Dolores
A1 Pérez Cortes, Salvador
A1 Alados Arboledas, Juan Carlos
A2 Medicina
K1 Clostridium difficile
K1 B Toxin
AB To study the association between detection of the Clostridioides difficile gene encoding the binary toxin (CDT) and direct detection of toxinB (TcdB) from feces with the appearance of serious disease, complications, or recurrence in a prospective series of cases. A total of 220 confirmed cases were included, using a two-step algorithm: an initial study to detect the enzyme, glutamate dehydrogenase (GDH), followed, in cases of positivity, by detection of the tcdB. tcdB-positive patients were investigated for the presence of CDT and TcdB. Outcome variables were severe disease, the modified Illinois C. difficile infection (CDI) prognostic risk index (ZAR score), the appearance of complications (need for colectomy, CDI-related death, or toxic megacolon) and recurrence. Patients who tested positive for the presence of TcdB in feces were found to have greater disease severity than those who tested negative, with a ZAR score of 35.4% vs. 23% (p = .048), a higher recurrence rate (14.6% vs. 5.9%, p = .032), and a tendency for higher number of complications (20.7% vs. 11.5%), although without reaching statistical significance (p = .053). When presence of CDT was analyzed, higher frequencies of severe disease (39.2% vs. 21.2%, p = .005), complications and recurrence (21.6% vs. 10.9%, p = .037 and 14.9% vs. 5.8%, p = .029; respectively) were observed in patients where CDT was detected. TcdB and CDT act as prognostic markers of the appearance of serious disease, complications or recurrence in cases of CDI. Simultaneous detection of both markers, TcdB and CDT, had a greater impact on the prognosis than when they were detected separately.
SN 1949-0984
YR 2021
FD 2021-01-22
LK http://hdl.handle.net/10498/35292
UL http://hdl.handle.net/10498/35292
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 09-may-2026