Early initiation of enteral feeding has been suggested to reduce infectious complications and length of stay. Which patient group might be at significant risk from early enteral feeding?

• A. Cancer patients who underwent surgery of the GIT
• B. Patients with increasing vasopressor support
• C. TBI patients with intracranial pressure controlled by hypertonic saline
• D. Patients admitted to the hospital with acute on chronic pancreatitis

Answer: (B)

Early enteral feeding hinges on adequate gut perfusion. When a patient requires increasing vasopressor support, splanchnic blood flow can drop as the body shunts blood to essential organs, and the gut becomes more vulnerable to ischemia. Introducing feeds in this context raises the gut’s metabolic demand at a time when its blood supply is limited, increasing the risk of mesenteric ischemia, bowel edema, and potential intestinal failure. Because of this, feeding early in patients with escalating vasopressor support is particularly risky, and clinicians often delay enteral nutrition until hemodynamics are stabilized and vasopressor needs are reduced.

The other patient groups can generally tolerate early feeding better when clinically stable: cancer patients after GI surgery may resume feeds once anesthesia and immediate postoperative issues are managed; traumatic brain injury patients with intracranial pressure controlled can usually start feeds if stable; and patients with pancreatitis, especially if not severely ill, often benefit from early nutrition to support gut integrity. The key point is that hemodynamic instability requiring rising vasopressors presents a real danger for early feeding due to compromised mesenteric perfusion.