Leucocyte volume, conductivity, and scatter at presentation in COVID-19 patients.

Background: In COVID-19 patients, besides changes in leucocyte count, morphological abnormalities of circulating blood cells have been reported. Aim: This study aims to investigate the relationship between the morphological and functional properties of leucocytes and the severity of the disease in COVID-19 patients. Materials and Methods: Blood samples were collected from COVID-19 patients (n = 130) at the time of admission. The patients were stratified according to the comorbidity, age, LDH, lymhocyte count score as mild, moderate, and severe. Complete blood count and the cell population data were analyzed by the Volume, conductivity, scatter (VCS) technology on Beckman Coulter LH-780 hematology analyzer. Kruskal-Wal'lis test was used to assess the differences between the groups with subsequent Bonferroni correction. Results: Neutrophil count was increased, and lymphocyte count was decreased in severe patients compared to mild patients. The increase in the percent of neutrophils and the neutrophil/lymphocyte ratio in the severe patient group was significant in comparison to both the moderate and the mild group. The dispersion of the neutrophil volume and conductivity showed significant changes depending on the severity of the disease. The lymphocyte volume, lymphocyte-volume-SD and lymphocyte-conductivity as well as the monocyte-volume and monocyte-volume-SD were significantly increased in severe patients in comparison to mild patients. The increase of lymphocyte and monocyte volume in severe patients was also significant in comparison to moderate patients. Conclusions: COVID-19 infection leads to important changes in cell population data of leucocytes. The volumetric changes in lymphocytes and monocytes are related to the severity of the disease.

Interrelation between the Poisoning Severity Score, carboxyhaemoglobin levels and in-hospital clinical course of carbon monoxide poisoning.

The aim of the present study is to evaluate the relationship between the Poisoning Severity Score (PSS) and carboxyhaemoglobin (COHb) levels in patients with carbon monoxide poisoning (COP) using outcome as the measure. The study was designed as a retrospective chart review of patients with final diagnosis of COP. Correlation of PSS and COHb levels at presentation was evaluated with collected data. Majority of the cases were grade 1 (minor) PSS (134 cases, 73.6%) and 93.4% of these patients made a complete recovery. There were six deaths (mortality 3.3%) and six in-hospital major complications (IHMCs) (3.3%) (please specify whether the complications were in the patients who died). There is moderate correlation between PSS and outcome (p < 0.001, r = 0.493). Grade 3 (severe) PSS was significantly different from other grades for outcome (six mortalities and three IHMCs). Patients classified as grade 3 and patients who died had a significantly higher mean age (p < 0.05, 41.8 +/- 23.6 and p < 0.01, 60.1 +/- 20.3, respectively). Mean COHb level of grade 3 (33.2 +/- 13.9%) was significantly higher than that of other grades (p < 0.05). COHb levels according to outcome were not different (? within the patients in grade 3). Decreased level of consciousness, acidosis, tachycardia, high glucose and leucocyte levels showed significant relation with higher PSS, COHb level and adverse outcome. We conclude that the PSS is a reliable guide in COP. Value of the PSS in COP may be enhanced if additional factors and investigations are included.

Brugada syndrome, manifested by propafenone induced ST segment elevation.

We report a case of a 43 year old man who was diagnosed with Brugada syndrome after propafenone administration for chemical cardioversion of new onset atrial fibrillation. Brugada syndrome has been described in the medical literature and is thought to be responsible for the majority of sudden cardiac deaths in patients without ischaemic heart disease. This syndrome has not yet been extensively discussed in the emergency medicine literature despite its importance. Emergency physicians should consider Brugada syndrome in patients who present to the emergency department with right bundle branch block and ST segment elevation in the right precordial leads, which is the classic electrocardiographic pattern of this syndrome.

More than just an ocular solution.

Apraclonidine eye drop is an alpha adrenergic agonist derived topical clonidine, used for the treatment of intraocular pressure elevation. We report what is to our knowledge the first case of systemic toxicity of apraclonidine resulted from repeated local administration. Clinical manifestation of toxicity was similar to oral clonidine overdose. Toxicities of ocular drugs should always be considered when a patient presents with new systemic problems.

A case report of an unusual sternal fracture.

Most sternal fractures are transverse, and a lateral chest radiograph is diagnostic. We report a case of vertical sternal fracture that was not seen on plain radiographs but was revealed using computed tomography (CT). Thoracic CT with coronal reformatted images can also demonstrate sternal fracture lines, supernumerary synchondrosis, and costosternal joint abnormalities.

A national survey of Turkish emergency physicians perspectives regarding family witnessed cardiopulmonary resuscitation.

We investigated Turkish emergency physicians' views regarding family witnessed resuscitation (FWR) and to determine the current practice in Turkish academic emergency departments with regard to family members during resuscitation. A national cross-sectional, anonymous survey of emergency physicians working in academic emergency departments was conducted. Nineteen of the 23 university-based emergency medicine programs participated in the study. Two hundred and thirty-nine physicians completed the survey. Of the respondents, 83% did not endorse FWR. The most common reasons for not endorsing FWR was reported as higher stress levels of the resuscitation team and fear of causing physiological trauma to family members. Previous experience, previous knowledge in FWR, higher level of training and the acceptance of FWR in the institution where the participant works were associated with higher rates of FWR endorsement for this practice among emergency physicians.

Adverse events associated with aggressive treatment of increased blood pressure.

Patients with severely increased blood pressure often present to the emergency department. Rapid lowering of blood pressure can precipitate or worsen end organ damage. We report two cases that developed cerebrovascular and cardiovascular adverse events associated with aggressive treatment of increased blood pressure by the use of sublingual nifedipine capsule. The first patient had developed ischaemic stroke; the second patient actually had acute left ventricular failure causing deteriorated, and required positive inotropic treatment for persistent hypotension. These cases emphasise that the pseudoemergency may rapidly progress into a real emergency when blood pressure is rapidly and aggressively reduced.

Massive hydroxychloroquine overdose.

We report a case presenting with massive overdose of hydroxychloroquine who survived without any sequelae. A 17-year-old girl presented to the Emergency Department 45 min after the ingestion of 22 g of hydroxychloroquine in a suicide attempt. We believe this is highest dose yet reported in the medical literature. The patient developed hypotension, life-threatening ventricular arrhythmias and mild hypokalemia. She was managed with saline infusion and dopamine for hypotension, gastric lavage and activated charcoal for decontamination, lidocain, magnesium sulfate and defibrillation for pulseless ventricular tachycardia. Potassium replacement and bicarbonate administration were performed. Quick treatment of hypotension, gastric decontamination, continuous long-term cardiac monitoring, and treatment of arrhythmias are the cornerstones of hydroxychloroquine overdose management.