Direct electrical stimulation using a battery-operated device for induction and modulation of colonic contractions in pigs.

Direct electrical stimulation of the colon offers a promising approach for the induction of propulsive colonic contractions by using an implantable device. The objective of this study was to assess the feasibility to induce colonic contractions using a commercially available battery-operated stimulator (maximum pulse width of 1 ms and maximum amplitude of 10 V). Three pairs of pacing electrodes were inserted into the cecal seromuscular layer of anesthetized pigs.

[Does early analgesia interfere with diagnostic process in acute abdominal pain syndrome?].

Early pain management with opioid by patients admitted for abdominal pain is widely contested. Emergency physicians are feared to interfere with physical examination and the ability to make a correct diagnosis. The present review tends to show that opioids are safe in this context.

Agenesis of the gallbladder: a dangerously misdiagnosed malformation.

Isolated agenesis of the gallbladder is a rare anomaly, often asymptomatic. However, one patient out of four presented with right upper abdominal pain, nausea, and fatty food intolerance. The condition is frequently mistaken with an excluded or sclero-atrophic gallbladder, regardless of the imaging modality used.

Primary clear cell sarcoma of the ileum: an uncommon and misleading site.

A clear cell sarcoma, arising primarily in the ileum of a 35-year-old man, is reported. Histologically, the neoplasm infiltrated the full thickness of the intestinal wall. It consisted of strands and sheets of round to spindle-shaped cells with clear to eosinophilic cytoplasm, vesicular nuclei and prominent nucleoli.

[Agenesis of the gallbladder].

Isolated agenesis of the gallbladder (AG) is a rare anomaly. Twenty-three percent of the patients are symptomatic and present with right upper abdominal pain, nausea and fatty food intolerance. The condition is frequently mistaken with excluded or sclero-atrophic gallbladder, regardless of the imaging modality used.