Gianfranco Cervellin

We report the case of a 52-year-old marathon runner admitted to our emergency department for exertional heat stroke (EHS). The electrocardiogram (ECG) showed a supraventricular tachycardia, probably an atrial flutter with 2:1 block, conducted with left bundle branch block. After 10 minutes of aggressive fluid management and rapid external cooling, the ECG returned to normal. As the high-sensitivity cardiac troponin I was elevated, coronary angiography and an electrophysiological study were performed, revealing normal coronary arteries and excluding inducible arrhythmias. As reported in the current literature, our findings confirm that the electrocardiographic changes and elevation of cardiac markers in EHS do not reflect cardiac ischemia, but rather a myocardial injury due to the pathophysiological response to dehydration and hyperthermia, which markedly impaired stroke volume and cardiac output. EHS is a life-threatening condition with a complex pathophysiology caused by thermoregulatory failure. Diagnosis is not always straightforward, but early recognition and timely management (the "golden hour") with rapid cooling and intravenous fluids are crucial to prevent irreversible and fatal organ damage. EHS is defined by a rectal temperature > 40.5 °C with symptoms or signs of neurological dysfunction, such as confusion, drowsiness, or seizures, which can rapidly worsen with delirium, coma, and cardiac arrest. With this case report, we want to remind emergency physicians that early diagnosis and appropriate management of EHS can avoid death and inappropriate treatment. (www.actabiomedica.it).

Primary hyperparathyroidism (PHPT) often leads to neurological or psychiatric disorders, thus mimicking different diseases. Here we present a 77-years old man visited in the Emergency Department complaining for fatigue, multiple falls, nausea, anorexia, and constipation. Symptoms were rapidly worsening, and on admission he appeared sleepy, responsive to verbal stimulus, disoriented, dehydrated, unable to maintain upright position. He suffered from mild, relapsing and remitting Multiple Sclerosis (MS) since the age of 45, at that moment not requiring treatment. The laboratory tests displayed severe hypercalcemia (16.8 mg/dL), slightly decreased level of serum phosphorus (2.8 mg/dL), very high levels of parathyroid hormone (PTH) (508 pg/mL). A parathyroid mass (35x21x32 mm) in left paratracheal position was found with Computed Tomography (CT) of the neck. After correcting hypercalcemia, he was operated on day 18, thus confirming the parathyroid adenoma, that was successfully removed. One month later, the patient was completely well, and able to walk without any help, like three months before. The lab tests' values obtained during the control visit showed complete normalization of calcium-phosphate metabolism. Diabetes, too, was going better, allowing a reduction in metformin dosage. At the best of our knowledge this is the first described case of a clinically significant overlapping between symptoms due to a long-lasting mild MS and an unrecognized, severe, PHPT. This case underlines the importance of a thorough metabolic evaluation of each patient presenting worsening of his neuromuscular and/or neuropsychiatric condition, even when previously known to be affected by a defined neurologic or psychiatric disease.

Spinal cord injury without radiographic abnormality (SCIWORA) is a rare post-traumatic myelopathy, more frequently seen in paediatric population and elderly. Clinical manifestation can range from transient isolated paraesthesia to quadriplegia. Due to its rarity in adults and the broad spectrum of neurological manifestations, SCIWORA actually represents a challenge for emergency physicians. Early diagnosis and timely intervention are crucial for the patient’s prognosis avoiding permanent neurological deficits. Magnetic resonance imaging (MRI) plays a pivotal role in the diagnosis, management and prognosis of SCIWORA, being the golden standard technique to identify spinal cord injuries. To highlight the importance of in-depth neurological examination and early diagnosis of SCIWORA, we describe the case of a 53-year-old woman who presented to our emergency department following a forward fall down the stairs with a minor head injury.

Wunderlich syndrome (WS) or spontaneous renal haemorrhage is a rare and life-threatening condition often leading to haemorrhagic shock. WS is characterized by an acute onset of non-traumatic subcapsular and perirenal haematoma formation due to several causes, including neoplasms, cystic rupture, vasculitis, coagulopathies, and infections. The classical presentation includes acute flank or abdominal pain, a palpable flank mass and hypovolemic shock (Lenk’s triad). Nausea, vomiting, fever, and haematuria can also be present. Computed tomography angiography is mandatory to localize the source of haemorrhage. Super-selective embolization can be performed to stop bleeding, while surgery is reserved to haemodynamic unstable patients and neoplastic cases. We describe a case of WS in a 79-year-old male patient, who rapidly developed hypovolemic shock requiring urgent nephrectomy. (www.actabiomedica.it)

Antoine-Laurent de Lavoisier (1743-1794), the recognized father of modern chemistry, was the discoverer of both oxygen and hydrogen, as well as the first scientist to understand the importance of oxygen in animal respiration. Following his discoveries, researchers have tried to measure oxygenation of both blood and tissues for the next two centuries.

Membranous nephropathy (MN) is the commonest cause of nephrotic syndrome (NS) in adult male patients worldwide. Most of the cases (80%) are idiopathic (primary MN, PMN), whereas about 20% are associated with autoimmune diseases, malignancies or exposures (secondary MN). PMN is a kidney-specific autoimmune glomerular disease mediated by antibodies to the M-type phospholipase A2 receptor (anti-PLA2R) (85%), thrombospondin type 1 domain containing 7A (THSD7A) (3-5%), or by other still unidentified mechanisms (10%). Most of the patients with PMN present with NS (80%). Clinical course of PMN is characterised by spontaneous remissions (40%) and relapses (15-30%). One third develop end-stage renal disease (ESRD) within 5 to 15 years from the onset. Anti-PLA2R/THSD7A antibodies levels correlate with proteinuria, clinical course, and outcomes. The treatment still remains matter of debate. Hypertension, proteinuria, and hyperlipidaemia must be treated in all patients. Immunosuppressive therapy is indicated in patients with elevated anti-PLA2R/THSD7A levels and proteinuria >3.5 g/d at diagnosis. With proper management, only 10% or less will develop ESRD over the subsequent 10 years. Here we report a case of a 34-year-old male patient with a ten-year history of asymptomatic PMN, treated with ACE-inhibitors, who presented to our emergency room for acute chest pain and exertional dyspnoea due to ESRD that required urgent dialysis. (www.actabiomedica.it).

We describe a case of a 90-year-old male admitted to the emergency department with deep vein thrombosis and central acute pulmonary embolism. Despite a remarkably increased value of D-dimer and a modestly elevated concentration of cardiac troponin I, the value of B-type natriuretic peptide was found to be non-diagnostic. Limited to this single case report, our evidence suggests that the measurement of natriuretic peptides is questionable for diagnosing central acute pulmonary embolism in the emergency department.

Rituximab is a monoclonal antibody against the protein CD20. Various lymphomas as well as non-malignant immune disorders are treated with this antibody. Hypersensitivity reactions associated with the use of rituximab include urticaria, hypotension, chest tightness, vomiting, oxygen desaturation and bronchospasm. A very uncommon case of hypertensive crisis and pulmonary edema following rituximab-induced hypersensitivity reaction in an 80-year-old man receiving rituximab for non-Hodgkin lymphoma is reported. Anaphylaxis manifesting as coronary vasospasm following drug treatment, including rituximab, could be proved a serious condition in patients who need specific treatment. In these patients desensitization protocols seem to be mandatory. (www.actabiomedica.it)

Although cardiac troponins are valuable tools for risk stratification in patients with venous thromboembolism (VTE), their significance remains elusive in diagnosing venous thrombosis. D-dimer (age-adjusted cut-off) and high-sensitivity cardiac troponin I (HS-cTnI; reference limit, <10.5 ng/L in women and <17.8 ng/L in men) were measured in 2199 consecutive patients (1106 women and 1093 men; mean age, 63±20 years), admitted to the Emergency Department of the University Hospital of Parma during a 3-month period. Overall, 53 patients were finally diagnosed with VTE (12 with deep vein thrombosis and 41 with pulmonary embolism). The diagnostic performance (area under the curve; AUC) of D-dimer and HS-cTnI was 0.70 and 0.71 for all VTE episodes, 0.70 and 0.63 for deep vein thrombosis (DVT), 0.70 and 0.74 for pulmonary embolism (PE), respectively. The combination of positive values of both biomarkers yielded better diagnostic performance than D-dimer values alone for diagnosing PE (AUC, 0.80; p<0.001 vs. D-dimer alone), but not for diagnosing DVT (AUC, 0.73; p=0.458 vs. D-dimer alone). In patients with PE, positive HS-cTnI values in patients with concomitantly positive D-dimer values yielded identical diagnostic sensitivity compared to D-dimer positivity alone (i.e., 1.00), but nearly double diagnostic specificity (i.e., 0.71 vs. 0.40). Positive HS-cTnI values (AUC, 0.68), but not D-dimer positivity (AUC, 0.51), were associated with 30-day hospital readmission of VTE patients. The results of this study open intriguing opportunities for combining HS-cTnI and D-dimer in the diagnostic approach of patients with PE.

Already famous since the high Middle Ages, the Salernitan Medical School reached its whole scientific role between the 11th and 12th century, declining later due to the rising of modern universities. Information on the earliest period of the School is very poor but, starting from the 10th century, we know that Salernitan physicians were widely recognized as researchers and healers. This paper is focused on the heavy role recognized to the Langobards (first) and Normans (later) on development of the Salernitan Medical School. A special role must be recognized to Alfanus I, Gariopontus and Trotula de Ruggiero: they left memories on their enterprises and many manuscripts of great relevance for the development of Middle Ages and Renaissance Medicine. Their multicultural experience dragged the Salernitan School to become the greatest expression of medical science of its age. This role was expressed in the "Regimen Sanitatis Salernitanum" or "Flos Medicinae Salerni", a book that resumes the highest knowledges on general hygiene, dietetics, physiotherapy, comparative anatomy and surgery. The book had a tremendous success, having more than 300 editions in many languages up to 1846. It was an essential reference for western medical literature up to Renaissance. Furthermore, Langobards took care of health laws, mainly in the Rotari edict, which included laws on medical practice and on the physicians' role. (www.actabiomedica.it).