As peristalsis (afferent loop) or antiperistalsis (efferent loop) continues, more jejunum is pushed into the intussuscipiens, which is, ultimately, the stomach.

Afferent loop syndrome (ALS) is a rare and dreaded complication after pancreaticoduodenectomy (PD). Malignant ALS after PD is usually difficult to manage due to patients' poor condition. Effective and ...