Detection of subsolid nodules on chest CT scans during the COVID-19 pandemic.

Objective: To investigate the detection of subsolid nodules (SSNs) on chest CT scans of outpatients before and during the COVID-19 pandemic, as well as to correlate the imaging findings with epidemiological data. We hypothesized that (pre)malignant nonsolid nodules were underdiagnosed during the COVID-19 pandemic because of an overlap of imaging findings between SSNs and COVID-19 pneumonia.

Methods: This was a retrospective study including all chest CT scans performed in adult outpatients (> 18 years of age) in September of 2019 (i.

Retrospective Analysis of Subsolid Nodules' Frequency Using Chest Computed Tomography Detection in an Outpatient Population.

Introduction: The study was designed to evaluate the frequency of detection and the characteristics of subsolid nodules (SSNs) in outpatients' chest computed tomography (CT) scans from a private hospital in Southern Brazil.

Methods: A retrospective analysis of all chest CT scans was performed in adult patients from ambulatory care (non-lung cancer screening population) over a thirty-day period. Inclusion criteria were age > 18 years and lung-scanning protocols, including standard-dose high-resolution chest CT (HRCT), enhanced CT, CT angiography, and low-dose chest CT (LDCT).

Usefulness of radiological signs of pulmonary congestion in predicting failed spontaneous breathing trials.

Inspiratory fall in intrathoracic pressure during a spontaneous breathing trial (SBT) may precipitate cardiac dysfunction and acute pulmonary edema. We aimed to determine the relationship between radiological signs of pulmonary congestion prior to an SBT and weaning outcomes. This was a post hoc analysis of a prospective cohort study involving patients in an adult medical-surgical ICU.

P50 sensory gating in panic disorder.

Previous studies with prepulse inhibition in panic disorder (PD) have suggested that the early stages of sensory information processing are abnormal in patients with PD. To further investigate sensory gating function in panic disorder we performed a case-control study in a sample of 28 patients with PD, compared to 28 normal subjects and 28 schizophrenic subjects evaluating auditory mid-latency evoked potential P50 in a double-click paradigm as a measure of sensory gating. PD subjects showed weaker sensory gating as evidenced by higher P50 ratios as compared to normal subjects (62.

Impaired P50 sensory gating in Machado-Joseph disease.

Objective: Machado-Joseph disease (MJD), an autosomal dominant spinocerebellar degeneration caused by an expanded CAG repeat on chromosome 14q32.1, is a disorder with wide range of neurological findings and brain regions involved. Studies evaluating neurophysiological parameters related to sensory gating in MJD are lacking.

Impaired P50 sensory gating in post-traumatic stress disorder secondary to urban violence.

Previous studies on sensory gating process in post-traumatic stress disorder (PTSD) have yielded conflicting results. To investigate sensory gating function in PTSD we performed a case-control study in a sample of 12 patients with PTSD related to urban violence, compared to 24 normal subjects and 12 schizophrenic subjects evaluating auditory mid-latency evoked potential P50 in a double-click paradigm as a measure of sensory gating. PTSD subjects showed poorer sensory gating as evidenced by higher P50 ratios as compared to normal subjects (85.