Introduction: The prevalence of hypokalemia in psychiatric population is very high with eating disorders and laxative abuse being the main incriminated factors. Case presentation: We report a case of a 34-year-old woman with history of sleeve gastrectomy and breast implant, who presented for fatigue, severe myalgia, generalized hypotonia and palpitations. Laboratory exams revealed severe hypokalemia and rhabdomyolysis. The electrocardiography showed prolonged QT interval and ST segment depression with second-degree atrioventricular block. She received intravenous potassium supplementation with consecutive hydration. When potassium level was within safety limits, the patients received loop diuretics in order to decrease rhabdomyolysis and avoid kidney injury. The underlying cause was a pathological behavior, with frequent self-provoked episodes of nausea and vomiting after eating and chronic consumption of laxatives. She started psychotherapy. Conclusion: Psychiatric behaviour can lead to life-threatening conditions, therefore it should be discovered and managed promptly.

Acute hypoxemic respiratory failure may have different causes. Case presentation: We present the case of a 42-year-old woman, with history of recent thyroidectomy and a late history of sleeve gastrectomy, who presented for acute dyspnoea. The chest X-ray revealed hydropneumothorax, and, therefore, an intercostals chest tube drainage was inserted. The evolution was unfavourable, with further respiratory status deterioration. A computed tomography of the thorax and abdomen was performed, that revealed a dilated thoracic oesophagus and stenosis of the esophagogastric junction, with lack of substance in the oesophageal wall and extravasation of oesophageal content in the posterior mediastinum, due to an oesophageal pleural fi stula. An oesophageal stent was inserted under endoscopic guidance and the patient underwent minim-invasive surgical interventions for evacuation of the mediastinal and pleural collections, with a favourable evolution. Conclusions: Acute respiratory failure can be the face of multiple conditions, some of these can be life threatening and in need for rapid detection and treatment.