Enteral feeding plays a critical role in the management of hospitalized patients, especially in intensive care units. In addition to delivering important nutrients, it also maintains the integrity of the gut and microbiota. Enteral feeding is also associated with complications and adverse events, some are related to access placement, metabolic and electrolytes disturbances, and aspiration pneumonia. In tube‐fed patients, aspiration pneumonia has a prevalence ranging from 4% to 95% with a mortality rate of 17%–62%. Our review has not showed any significant difference in the incidence of aspiration pneumonia between gastric and postpyloric feeding and, given the ease of gastric access, we therefore suggest using gastric feeding as an initial strategy for the delivery of nutrition unless postpyloric access is otherwise indicated for other clinical reasons.
The mechanosensitive ion channel Piezo2 in mucosa and primary afferents transduces colonic mechanical sensation. Here we show that chemogenetic activation or nociceptor-targeted deletion of Piezo2 is sufficient to regulate colonic mechanical sensitivity in a sex dependent manner. Clozapine N-oxide-induced activation of Piezo2;hM3Dq-expressing sensory neurons evokes colonic hypersensitivity in male mice, and causes dyspnea in female mice likely due to effects on lung sensory neurons. Activation of Piezo2-expressing colonic afferent neurons also induces colonic hypersensitivity in male but not female mice. Piezo2 levels in nociceptive neurons are higher in female than in male mice. We also show that Piezo2 conditional deletion from nociceptive neurons increases body weight growth, slows colonic transits, and reduces colonic mechanosensing in female but not male mice. Piezo2 deletion blocks colonic hypersensitivity in male but not female mice. These results suggest that Piezo2 in nociceptive neurons mediates innocuous colonic mechanosensing in female mice and painful sensation in male mice, suggesting a sexual dimorphism of Piezo2 function in the colonic sensory system.
Discussion: With our case report and extensive research of the literature, we hope to shed light on the importance of certain infections, even those in decline, on the differential. Additionally, contemplation of coexisting infections often helps to contribute to diagnoses not otherwise common. Because of how rarely seen syphilitic hepatitis is, it is often a missed diagnosis, but we are hopeful our case report helps physicians with patients with similar presentations, especially patients with otherwise unexplained high alkaline phosphatase levels.
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