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Common variable immunodeficiency (CVID) is a primary immunodeficiency characterized by low levels of serum immunoglobulins and increased susceptibility to infections, autoimmune disorders and cancer. CVID embraces a plethora of heterogeneous manifestations linked to complex immune dysregulation. While CVID is thought to be due to genetic defects, the exact cause of this immune disorder is unknown in the large majority of cases. Compelling evidences support a linkage between the gut microbiome and the CVID pathogenesis, therefore a potential for microbiome-based treatments to be a therapeutic pathway for this disorder. Here we discuss the potential of treating CVID patients by developing a gut microbiome-based personalized approach, including diet, prebiotics, probiotics, postbiotics and fecal microbiota transplantation. We also highlight the need for a better understanding of microbiota-host interactions in CVID patients to prime the development of improved preventive strategies and specific therapeutic targets., (© 2023. The Author(s).)

Choosing whether or not to initiate neuraxial anesthesia in pregnant women with immune system defects may be challenging. Anesthesiologists have the responsibility of making the best decision in terms of anesthesia management for both mother and baby during the labor and delivery process. Whether neuraxial anesthesia is associated with an increased risk of central nervous system infection in immunocompromised compared with healthy patients is unknown. It is also unclear if maternal immune modulation required for fetal tolerance makes pregnant women susceptible to pathogens and causes an altered immune response. Infection-related complications of neuraxial anesthesia are rare but may be severe, especially in immunocompromised parturients. There are no guidelines regarding the indications and limitations of regional anesthesia procedures in these patients. Immunocompromised patients are now seen more commonly, and it is essential to adopt a multidisciplinary approach to their care while tailoring anesthetic plans to the individual. We present the case of a 37-year-old parturient who had a congenital immune deficiency and who developed aseptic meningitis after receiving spinal anesthesia for cesarean delivery., (Copyright © 2021 Elsevier Ltd. All rights reserved.)