Therapeutic drug monitoring in inflammatory bowel diseases. Position statement of the Spanish Working Group on Crohn's Disease and Ulcerative Colitis.

The treatment of inflammatory bowel disease has undergone a significant transformation following the introduction of biologic drugs. Thanks to these drugs, treatment goals have evolved from clinical response and remission to more ambitious objectives, such as endoscopic or radiologic remission. However, even though biologics are highly effective, a significant percentage of patients will not achieve an initial response or may lose it over time.

Donor selection for faecal microbiota transplantation. Consensus document of the Catalan Society of Gastroenterology and the Catalan Society of Infectious Diseases and Clinical Microbiology.

Faecal microbiota transplantation (FMT) is an effective and safe treatment of recurrent Clostridioides difficile infection. It is essential to make every effort to perform FMT rigorously and based on scientific knowledge. Selection of the faecal microbiota donor is a key part of the process to ensure recipient safety.

[Approach to the diagnosis and treatment of chronic anemia secondary to gastrointestinal diseases].

Iron deficiency anemia is the most common type of anemia and can cause asthenia, cognitive and functional impairment, and decompensation of underlying diseases. Iron deficiency anemia is not a disease but is the result of a potentially serious medical problem. Consequently, patients should always undergo investigation of the underlying cause.