Publications by authors named "Harsha Chandnani"

Introduction: Status asthmaticus (SA) is a cause of many pediatric hospitalizations. This study sought to evaluate how a standardized asthma care pathway (ACP) in the electronic medical record impacted the length of stay (LOS).

Methods: An interdisciplinary team internally validated a standardized respiratory score for patients admitted with SA to a 25-bed pediatric intensive care unit (PICU) at a tertiary children's hospital.

View Article and Find Full Text PDF

Objective: Terminal extubation (TE) and terminal weaning (TW) during withdrawal of life-sustaining therapies (WLSTs) have been described and defined in adults. The recent Death One Hour After Terminal Extubation study aimed to validate a model developed to predict whether a child would die within 1 hour after discontinuation of mechanical ventilation for WLST. Although TW has not been described in children, pre-extubation weaning has been known to occur before WLST, though to what extent is unknown.

View Article and Find Full Text PDF

Objectives: To describe the doses of opioids and benzodiazepines administered around the time of terminal extubation (TE) to children who died within 1 hour of TE and to identify their association with the time to death (TTD).

Design: Secondary analysis of data collected for the Death One Hour After Terminal Extubation study.

Setting: Nine U.

View Article and Find Full Text PDF

Multisystem inflammatory syndrome in children (MIS-C) manifests as a severe and uncontrolled inflammatory response with multiorgan involvement, occurring weeks after SARS-CoV-2 infection. Here, we utilized proteomics, RNA sequencing, autoantibody arrays, and B cell receptor (BCR) repertoire analysis to characterize MIS-C immunopathogenesis and identify factors contributing to severe manifestations and intensive care unit admission. Inflammation markers, humoral immune responses, neutrophil activation, and complement and coagulation pathways were highly enriched in MIS-C patient serum, with a more hyperinflammatory profile in severe than in mild MIS-C cases.

View Article and Find Full Text PDF

Critically ill patients who are intubated undergo multiple chest X-rays (CXRs) to determine endotracheal tube position; however, other modalities can save time, medical expenses, and radiation exposure. In this article, we evaluated the validity and interrater reliability of ultrasound to confirm endotracheal tube (ETT) position in patients. A prospective study was performed on intubated patients with cuffed ETTs.

View Article and Find Full Text PDF

Introduction: Paging is a vital part of patient care that allows quick contact between physicians and other hospital personnel. There was no structured way to send a page to physicians at our institution. We hypothesized that by standardizing paging format, scheduling laboratory draw times, and using order clean-up sheets, through a bundle of interventions called Better Etiquette for Effective Paging, we would decrease the number of pages received on the pediatric intensive care unit (PICU) resident pager by 15%.

View Article and Find Full Text PDF

Multisystem inflammatory syndrome in children (MIS-C) is a life-threatening post-infectious complication occurring unpredictably weeks after mild or asymptomatic SARS-CoV-2 infection. We profiled MIS-C, adult COVID-19, and healthy pediatric and adult individuals using single-cell RNA sequencing, flow cytometry, antigen receptor repertoire analysis, and unbiased serum proteomics, which collectively identified a signature in MIS-C patients that correlated with disease severity. Despite having no evidence of active infection, MIS-C patients had elevated S100A-family alarmins and decreased antigen presentation signatures, indicative of myeloid dysfunction.

View Article and Find Full Text PDF

Multisystem inflammatory syndrome in children (MIS-C), a hyperinflammatory syndrome associated with SARS-CoV-2 infection, shares clinical features with toxic shock syndrome, which is triggered by bacterial superantigens. Superantigen specificity for different Vβ chains results in Vβ skewing, whereby T cells with specific Vβ chains and diverse antigen specificity are overrepresented in the T cell receptor (TCR) repertoire. Here, we characterized the TCR repertoire of MIS-C patients and found a profound expansion of TCRβ variable gene 11-2 (TRBV11-2), with up to 24% of clonal T cell space occupied by TRBV11-2 T cells, which correlated with MIS-C severity and serum cytokine levels.

View Article and Find Full Text PDF

Multisystem inflammatory syndrome in children (MIS-C) is a life-threatening post-infectious complication occurring unpredictably weeks after mild or asymptomatic SARS-CoV2 infection in otherwise healthy children. Here, we define immune abnormalities in MIS-C compared to adult COVID-19 and pediatric/adult healthy controls using single-cell RNA sequencing, antigen receptor repertoire analysis, unbiased serum proteomics, and assays. Despite no evidence of active infection, we uncover elevated S100A-family alarmins in myeloid cells and marked enrichment of serum proteins that map to myeloid cells and pathways including cytokines, complement/coagulation, and fluid shear stress in MIS-C patients.

View Article and Find Full Text PDF

Multisystem Inflammatory Syndrome in Children (MIS-C), a hyperinflammatory syndrome associated with SARS-CoV-2 infection, shares many clinical features with toxic shock syndrome, which is triggered by bacterial superantigens. The superantigen specificity for binding different Vβ-chains results in Vβ-skewing, whereby T cells with specific Vβ-chains and diverse antigen specificity are overrepresented in the TCR repertoire. Here, we characterized the TCR repertoire of MIS-C patients and found a profound expansion of TCR Βeta Variable gene (TRBV)11-2.

View Article and Find Full Text PDF

The novel coronavirus (severe acute respiratory syndrome coronavirus-2) has led to a global pandemic. In the adult population, coronavirus disease 2019 (COVID-19) has been found to cause multiorgan system damage with predicted long-term sequelae. We present a case of a 10-year-old boy with a history of ROHHAD (rapid-onset obesity with hypothalamic dysregulation, hypoventilation, and autonomic dysregulation) who presented with hypoxia, emesis, and abdominal pain.

View Article and Find Full Text PDF

Foreign body aspiration (FBA) is a common cause of unintentional-injury mortality. Modern bronchoscopy techniques have reduced mortality in children with FBA. In this article, we described a case of a 16-month-old child with refractory hypoxia where flexible bronchoscopy performed by the intensivist led to prompt etiology recognition and proper treatment.

View Article and Find Full Text PDF

Pediatric pneumomediastinum and pneumopericardium (PPC) are rare complications, which can arise from various etiologies. We report a case of pediatric PPC secondary to an asthma exacerbation and discuss relevant diagnostic and management principles. Physicians must be aware of PPC and its implications due to the high mortality rate.

View Article and Find Full Text PDF

Background: Human infection with group C Streptococcus is extremely rare and a select number of cases have been reported to cause acute pharyngitis, acute glomerulonephritis, skin and soft tissue infections, septic arthritis, osteomyelitis, pneumonitis, and bacteremia. In pediatrics, this bacteria is known to cause epidemic food-borne pharyngitis, pneumonia, endocarditis, and meningitis, and has reportedly been isolated in the blood, meninges, sinuses, fingernail, peritonsillar abscess, and thyroglossal duct cyst, among others.

Case Report: Our patient was a 7-year-old previously healthy female who presented with abnormal movements of her upper body and grimaces of her face that progressively worsened over time.

View Article and Find Full Text PDF