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During ill health, gut epithelial apoptosis occurs, alterations happen in the tight epithelial junctions leading to loss of gut barrier function and loss of the mucosal immunity leading to mucosal damage and hyperpermeability. Lastly, the microbiome is transformed into a pathobiome, with resultant increase in pathogenic bacteria and induction of virulence in commensal gut bacteria. Multiple organ damage starts to set in, caused by toxins leaving the intestine via both portal blood flow and mesenteric lymph. This review article traces the gut microbiomic ecology in health and sickness, modern tools that are used to manipulate gut microbiome in the search for the prevention and treatment of critical illness and will explore if appropriate manipulation of gut microbiome can influence or modulate the course of critical illness. How to cite this article Venkatachalam B, Abraham BK. Should We Fiddle with Gut Microbiome in Critically Ill? Indian J Crit Care Med 2020;24(Suppl 4)S211-S214.

Enhanced recovery after surgery (ERAS) is currently the standard of care in perioperative medicine, but it is widely underutilized in our healthcare setting because of the lack of awareness of benefits exerted by ERAS and its components. ERAS is a multidisciplinary collaboration, where intensivists play an important role in the implementation of the protocol during the perioperative period.

This review article aims to appraise the role of ERAS pathway on complications following supramajor gastrointestinal surgery.

A summary and review of evidence was conducted on the role of ERAS and its elements on non-specific and surgery-specific complications. Enhanced recovery pathways (ERPs) and its elements were directly found to be associated with lower incidence of hospital-associated infections, postoperative ileus, and postoperative pulmonary complications. Although there are no specific elements of ERPs found to have beneficial effect in preventing major adverse cardiac and cerebrovascular events, and surgercovery after Surgery. Indian J Crit Care Med 2020;24(Suppl 4)S205-S210.Due to lack of uniform diagnostic criteria, gastrointestinal (GI) complications in critically ill occur with variable frequency,1 and overall incidence of such complications seems to be less in children compared to adults. Major risk factors are use of catecholamines, sedatives, and muscle relaxants in patients with shock. GI dysmotility in critically ill patients is the main reason behind abdominal distension, increased gastric residual volume, and constipation. GI bleeding is described in about 10% of patients with critical illness with about 1.6% have clinically significant bleeding, particularly in patients with coagulopathy, respiratory failure, or PRISM scores >10.2 In this review, the most common GI issues encountered in children will be discussed as mentioned earlier. In addition management of acute GI bleeding will also be discussed. How to cite this article Khilnani P, Rawal N, Singha C. Gastrointestinal Issues in Critically Ill Children. Indian J Crit Care Med 2020;24(Suppl 4)S201-S204.One of the damage control strategies used to avoid or treat abdominal compartment syndrome is "open abdomen (OA)," where the facial edges and the skin is left open, exposing the abdominal viscera. Although it reduces the mortality both in trauma and non-trauma abdominal complications, it does create a significant challenge in an intensive care setting, as it has physiological consequences that need early recognition and prompt treatment both in the intensive care unit and in the operating room. The article aims to review literature on "open abdomen," describe the challenges in such cases, and proposes a guideline for the intensivist in managing a patient with an OA. How to cite this article Mitra LG, Saluja V, Dhingra U. Open Abdomen in a Critically Ill Patient. Indian J Crit Care Med 2020;24(Suppl 4)S193-S200.Systemic disorders can have gastrointestinal (GI) manifestations which are characterized by nausea, vomiting, diarrhea, constipation, abdominal pain, jaundice, and abnormal liver function tests. These gastrointestinal symptoms can be signs of various immunologic, infectious, and endocrine diseases. Gastrointestinal manifestations can be the first signs and symptoms for which the patient can be admitted in a critical care unit. In this article, we will discuss the GI manifestations of various topical diseases, endocrine diseases, and immunological diseases which are the major bulk of patients in intensive care unit (ICU). click here How to cite this article Panigrahy AK, Srinivasan S. Gastrointestinal Manifestations of Systemic Diseases in Critically Ill. Indian J Crit Care Med 2020;24(Suppl 4)S190-S192.Emergency laparotomies have remained a challenging entity since many decades. Only during the past 10 years, serious efforts have been made to improve their outcome by conducting audits and designing care pathways. Indications for emergency laparotomies can be broadly classified into trauma and non-trauma surgeries, which are either done for control of hemorrhage or/and done for control of sepsis and organ dysfunction. Goal-directed resuscitation for septic/hemorrhagic shock, consultant-led multidisciplinary teams, and timely transfer to intensive care units form core principles of management for these patients. Global inequity in access to standard and affordable emergency surgeries is an area of concern requiring integrated efforts at international level. How to cite this article Ahmed A, Azim A. Emergency Laparotomies Causes, Pathophysiology, and Outcomes. Indian J Crit Care Med 2020;24(Suppl 4)S183-S189.Gastrointestinal (GI) motility disorders are a common problem in the intensive care unit (ICU) and are associated with increased morbidity, complications like feeding intolerance, malnutrition, bacterial translocation, sepsis, multiple organ failure, prolonged hospital stay and increased risk of mortality. Several risk factors in intensive care setting that contribute to GI dysmotility include mechanical ventilation, vasopressor support, use of opioids, etc. Degree of GI motility dysfunction correlates with severity of critical illness. So, it is important to identify the dysfunction early so that targeted therapy could be prescribed to prevent worsening of clinical outcomes. How to cite this article Govil D, Pal D. Gastrointestinal Motility Disorders in Critically Ill. Indian J Crit Care Med 2020;24(Suppl 4)S179-S182.