Distribution of airway pressure opening in the lungs measured with electrical impedance tomography (POET): a prospective physiological study.

Background: In patients with acute hypoxemic respiratory failure (AHRF) under mechanical ventilation, the change in pressure slope during a low-flow insufflation indicates a global airway opening pressure (AOP) needed to reopen closed airways and may be used for titration of positive end-expiratory pressure.

Objectives: To understand 1) if airways open homogeneously inside the lungs or significant regional AOP variations exist; 2) whether the pattern of the pressure slope change during low-flow insufflation can indicate the presence of regional AOP variations.

Methods: Using electrical impedance tomography, we recorded low-flow insufflation maneuvers (< 10 L/min) starting from end-expiratory positive pressure 0-5 cmHO.

Ventilation distribution during spontaneous breathing trials predicts liberation from mechanical ventilation: the VISION study.

Background: Predicting complete liberation from mechanical ventilation (MV) is still challenging. Electrical impedance tomography (EIT) offers a non-invasive measure of regional ventilation distribution and could bring additional information.

Research Question: Whether the display of regional ventilation distribution during a Spontaneous Breathing Trial (SBT) could help at predicting early and successful liberation from MV.

Association mapping and genomic prediction for processing and end-use quality traits in wheat (Triticum aestivum L.).

End-use and processing traits in wheat (Triticum aestivum L.) are crucial for varietal development but are often evaluated only in the advanced stages of the breeding program due to the amount of grain needed and the labor-intensive phenotyping assays. Advances in genomic resources have provided new tools to address the selection for these complex traits earlier in the breeding process.

Modes of administration of nitric oxide devices and ventilators flow-by impact the delivery of pre-determined concentrations.

Background: Nitric oxide (NO) is a strong vasodilator, selectively directed on pulmonary circulation through inhaled administration. In adult intensive care units (ICU), it is mainly used for refractory hypoxemia in mechanically ventilated patients. Several medical delivery devices have been developed to deliver inhaled nitric oxide (iNO).

Combined Interval Cytoreductive Surgery and Carboplatin-Based Hyperthermic Intraperitoneal Chemotherapy in Advanced Primary High-Grade Serous Ovarian Cancer.

Combining interval cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) improves survival in advanced epithelial ovarian carcinoma (EOC). Although limited, growing evidence regarding carboplatin-based HIPEC highlights its potential. This retrospective study included all patients with advanced primary high-grade serous ovarian cancer who underwent interval CRS combined with carboplatin-based HIPEC at our Canadian tertiary care center between 2014 and 2020.

Mitral annular plane systolic excursion for assessing left ventricular systolic dysfunction in patients with septic shock.

Background: Using easy-to-determine bedside measurements, we developed an echocardiographic algorithm for predicting left ventricular ejection fraction (LVEF) and longitudinal strain (LVLS) in patients with septic shock.

Methods: We measured septal and lateral mitral annular plane systolic excursion (MAPSE), septal and lateral mitral S-wave velocity, and the left ventricular longitudinal wall fractional shortening in patients with septic shock. We used a conditional inference tree method to build a stratification algorithm.

The PROMIZING trial enrollment algorithm for early identification of patients ready for unassisted breathing.

Background: Liberating patients from mechanical ventilation (MV) requires a systematic approach. In the context of a clinical trial, we developed a simple algorithm to identify patients who tolerate assisted ventilation but still require ongoing MV to be randomized. We report on the use of this algorithm to screen potential trial participants for enrollment and subsequent randomization in the Proportional Assist Ventilation for Minimizing the Duration of MV (PROMIZING) study.

Severe Paraneoplastic Dermatomyositis in a Patient With High-Grade Serous Ovarian Cancer.

Background: Paraneoplastic dermatomyositis following a diagnosis of ovarian cancer is rare. There are very few cases reported on the management of severe forms.

Case: We report the case of a 50-year-old woman diagnosed with stage IIIC high-grade serous ovarian cancer and a severe form of paraneoplastic dermatomyositis requiring mechanical ventilation.

School Refusal in Immigrants and Ethnic Minority Groups: A Qualitative Study of Adolescents' and Young Adults' Experiences.

Background: School refusal is one cause of school absenteeism along with truancy, and the two can be difficult to distinguish. School absenteeism behaviors among students in transcultural situations (immigrants or children of immigrants) and from ethnic minority groups are subject to misdiagnosis and decreased access to care. To improve the care provided, this exploratory study addresses the experience of adolescents and young adults engaging in school refusal, from immigrant and ethnic minority groups.

Posterior Reversible Encephalopathy Syndrome After Self-Medication With an Oral Decongestant: A Case Report.

Introduction: Posterior reversible encephalopathy syndrome (PRES) is a rare neurological disorder caused by the dysregulation of cerebral perfusion.

Case Presentation: We report on a 18-year-old female patient with a history of end-stage renal disease and thrice weekly hemodialysis. She was admitted to the emergency department with mental confusion, blurred vision, headaches, and vomiting, following self-medication with an oral decongestant containing pseudoephedrine.

Across-population genomic prediction in grapevine opens up promising prospects for breeding.

Crop breeding involves two selection steps: choosing progenitors and selecting individuals within progenies. Genomic prediction, based on genome-wide marker estimation of genetic values, could facilitate these steps. However, its potential usefulness in grapevine (Vitis vinifera L.

Respiratory effects of lung recruitment maneuvers depend on the recruitment-to-inflation ratio in patients with COVID-19-related acute respiratory distress syndrome.

Background: In the context of acute respiratory distress syndrome (ARDS), the response to lung recruitment maneuvers (LRMs) varies considerably from one patient to another and so is difficult to predict. The aim of the study was to determine whether or not the recruitment-to-inflation (R/I) ratio could differentiate between patients according to the change in lung mechanics during the LRM.

Methods: We evaluated the changes in gas exchange and respiratory mechanics induced by a stepwise LRM at a constant driving pressure of 15 cmHO during pressure-controlled ventilation.

Temozolomide is a risk factor for invasive pulmonary aspergillosis: A case report and literature review.

Background: Temozolomide is an oral alkylating agent incorporated in the treatment of glioblastoma multiforme (GBM) that can lead to lymphopenia. The standard treatment of GBM involves temozolomide chemotherapy with radiation, often with addition of corticosteroids for symptomatic management of cerebral edema. Some studies have reported an increased risk of opportunistic infections.

Transoesophageal Ultrasound Assessment of Lung Aeration in Patients With Acute Respiratory Distress Syndrome.

The effect of positive end-expiratory pressure (PEEP) depends closely on the potential for lung recruitment. Bedside assessment of lung recruitability is crucial for personalized lung-protective mechanical ventilation in acute respiratory distress syndrome (ARDS) patients. We developed a transoesophageal lung ultrasound (TE-LUS) method in which a quantitative (computer-assisted) grayscale determination served as a guide to PEEP-induced lung recruitment.

Positive end-expiratory pressure in COVID-19-related ARDS: Do not forget the airway closure.

Airway closure is a physiological phenomenon in which the distal airways are obstructed when the airway pressure drops below the airway opening pressure. We assessed this phenomenon in 27 patients with coronavirus disease 2019-related acute respiratory distress syndrome. Twelve (44%) patients had an airway opening pressure above 5 cmHO.

From Upper Respiratory Symptoms to Hemophagocytic Lymphohistiocytosis: Case Report of a Human Adenovirus Infection in Haploidentical Hematopoietic Stem Cell Transplant Recipient.

Human adenovirus infection is rare in adult population, except for in immunocompromised individuals. Recipients of allogenic haploidentical hematopoietic stem cell transplantation are reported at high risk for human adenovirus, which is often lethal when it evolves into the disseminated form. Despite existent guidelines, prevention, early diagnosis, and therapeutics remain challenging.

Carboplatin Hyperthermic Intraperitoneal Chemotherapy in the Management of Primary Stage IVB Endometrial Cancer.

Background: Endometrial cancer presenting with peritoneal metastases carries a poor prognosis. The addition of hyperthermic intraperitoneal chemotherapy (HIPEC) to the surgical management of these patients has been studied in recent years, but only with cisplatin.

Cases: This is a series of 3 patients presenting with endometrial cancer and synchronous peritoneal metastases who underwent cytoreductive surgery and carboplatin HIPEC as primary treatment.

Estimation of Pulmonary Artery Occlusion Pressure Using Doppler Echocardiography in Mechanically Ventilated Patients.

Objectives: Evaluation of left atrial pressure is frequently required for mechanically ventilated critically ill patients. The objective of the present study was to evaluate the 2016 American Society of Echocardiography and the European Association of Cardiovascular Imaging guidelines for assessment of the pulmonary artery occlusion pressure (a frequent surrogate of left atrial pressure) in this population.

Design: A pooled analysis of three prospective cohorts of patients simultaneously assessed with a pulmonary artery catheter and echocardiography.