Gastroschisis is a neonatal surgical emergency characterized by herniation of abdominal viscera through a paraumbilical abdominal wall defect. Its global incidence has increased over recent decades and is currently estimated at 2 - 5 per 10,000 live births [1]. Despite advances in neonatal intensive care and surgical techniques, gastroschisis remains associated with substantial morbidity, particularly in its complicated form [2].

The pathophysiology of in utero intestinal injury in gastroschisis is attributed to two interdependent mechanisms. Chronic chemical peritonitis results from prolonged exposure of the bowel serosa to amniotic fluid, leading to inflammation, edema, and bowel wall thickening [3]. In addition, vascular compromise plays a critical role and is thought to arise from constriction and intermittent compression of the mesenteric vessels at the narrow abdominal wall defect, resulting in reduced perfusion, ischemia, and progressive inflammatory injury to the bowel [4].

Complicated gastroschisis—defined by the presence of intestinal ischemia, necrosis, atresia, or perforation—accounts for a disproportionate share of adverse outcomes and mortality [1][4]. Prenatal identification of severe intestinal compromise is therefore essential for prognostication and postnatal management planning. This report describes a case of extreme antenatal bowel deterioration culminating in rapid postoperative systemic collapse.

This case illustrates well-established prenatal predictors of complicated gastroschisis. Progressive bowel dilatation exceeding 1.8 cm and increasing bowel wall thickness have consistently been associated with intestinal ischemia, atresia, necrosis, and adverse neonatal outcomes [6][7]. In the present case, dilatation progressed to more than 2.5 cm, representing extreme intrauterine intestinal compromise [6].

The rapid postoperative deterioration can be explained by the synergistic interaction between reperfusion-induced systemic inflammation and elevated intra-abdominal pressure. Primary closure of severely ischemic bowel results in sudden reperfusion, triggering a massive cytokine release that precipitates systemic inflammatory response syndrome [3][4]. Simultaneously, primary closure in the setting of marked bowel edema acutely increases intra-abdominal pressure, resulting in abdominal compartment syndrome [2]. The mechanical effects of abdominal compartment syndrome further impair venous return, ventilation, and renal perfusion, compounding hemodynamic instability.

Previous cohort studies and case series report mortality rates of up to 20% in complicated gastroschisis, particularly in cases associated with significant antenatal bowel dilatation and wall thickening [1][4]. Measurements exceeding 2.5 cm correlate strongly with postoperative septic morbidity and mortality [6][8]. While primary fascial closure is appropriate for simple gastroschisis, staged reduction using a silo is recommended in high-risk cases to permit gradual decompression and reduce systemic complications [2][5].

Progressive antenatal bowel dilatation and wall thickening are strong predictors of complicated gastroschisis and adverse neonatal outcomes [6]. In this case, an eviscerated bowel diameter exceeding 2.5 cm represented an indicator of extreme intrauterine intestinal injury and profound physiological risk. Such findings should prompt early consideration of staged reduction strategies to reduce the risk of systemic inflammatory response syndrome and abdominal compartment syndrome and to prioritize neonatal physiological stability [2][4].

Written informed consent for publication of this case report and images was obtained from the infant’s legal guardian.