Autopsies in children continue to reveal unanticipated discrepancies between autopsy findings and antemortem clinical diagnoses

Autopsy Observation as Experiential Learning for Nurse Practitioner Students in an Online Advanced Pathophysiology Course

BACKGROUND

Many instructional classrooms now exist in the online environment, where it is difficult to integrate experiential teaching strategies. Autopsy-based education has been shown to be a valuable teaching tool for pathophysiology in a medical school curriculum.

PROBLEM

There is a gap in the literature about the use of an autopsy observation in nurse practitioner (NP) education.

APPROACH

The purpose of this project was to develop and evaluate the effectiveness of an autopsy experience for NP students in an online advanced pathophysiology course.

OUTCOMES

Based on a review of course evaluations and reflective essays, the majority of students found this to be a valuable learning experience. The main barrier was locating a facility and scheduling the autopsy observation.

CONCLUSION

The benefits outweigh the barriers to providing experiential learning with an autopsy observation in an online pathophysiology course. As such, it should be considered in similar course offerings.

Pneumococcal haemolytic uraemic syndrome in the postvaccine era

OBJECTIVE

Pneumococcal infection is a leading cause of haemolytic uraemic syndrome (HUS) and is potentially vaccine preventable. Published data suggest high mortality and poor renal outcomes. The introduction of the 7-valent pneumococcal conjugate vaccine (PCV) has seen the emergence of disease caused by non-vaccine strains, particularly 19A. We sought to describe serotype prevalence and outcomes, particularly after the introduction of the 13-valent PCV.

DESIGN AND SETTING

We performed a retrospective chart review, using hospital medical records to identify cases of HUS in a tertiary paediatric hospital in Australia over a 20-year period (January 1997-December 2016). Associated pneumococcal infection was identified, and serotype data were categorised according to vaccine era: prevaccine (January 1997-December 2004), PCV7 (January 2005-June 2011) and PCV13 (July 2011-December 2016).

RESULTS

We identified 66 cases of HUS. Pneumococcal infection was proven in 11 cases, representing 4% (1/26) of cases prior to the introduction of PCV7, 20% (3/15) in the PCV7 era and 28% (7/25) in the PCV13 era. Subtype 19A was the most prevalent pneumococcal serotype (6/11). All four patients who received PCV7 were infected with a non-vaccine serotype. Four of the five patients who received PCV13 were classed as vaccine failures. Median follow-up was 14 (range 1-108) months. Chronic kidney disease was the most common complication (4/7). We observed no mortality, neurological sequelae or progression to end-stage kidney disease.

CONCLUSIONS

Serotype 19A is most commonly associated with pneumococcal HUS, despite the introduction of the 13-valent vaccine. Chronic kidney disease is a significant complication of pneumococcal HUS.

Learning From Investigation After Death

OBJECTIVES

The acceptability of traditional postmortem examination to bereaved families, coupled with a misguided professional view about their limited utility, has led to decrease in this ultimate investigation. Research recurrently demonstrates that postmortem examination provides clinically relevant information despite ever-improving diagnostic techniques. This review examines postmortem examination for children who die in PICU-whether consented or nonconsented (legally mandated). It explores how such investigations might provide useful information and suggests that PICU and pathology teams work together to provide information for bereaved families to either enable them to consent to postmortem interventions or understand necessary forensic processes. Newer technologies such as postmortem imaging and laparoscope-assisted/ultrasound-guided tissue sampling are reviewed, with the hope that greater acceptability to families may lead to a welcome resurgence in postmortem information for clinicians, tempered by realization that widespread acceptance of their equivalence to standard techniques by most forensic services is awaited.

DATA SOURCES

Literature review.

STUDY SELECTION

Journal articles describing practices in pediatric and adult postmortem examination.

DATA EXTRACTION

Not available.

DATA SYNTHESIS

Not available.

CONCLUSIONS

The PICU team have a duty to help bereaved parents understand what postmortem investigations are available, or might be mandated, after the death of their child. A thoughtful, unhurried, and compassionate discussion should be arranged with expert pathology teams and any specialists who have cared for the child to explain how investigations can provide information about what is involved-including availability and suitability of newer techniques. This should include information about when a child's body, organs, or tissues will be available for the funeral, necessary legal procedures and how and when results will be explained to them.

End-of-Life Practices Among Tertiary Care PICUs in the United States: A Multicenter Study

OBJECTIVE

To describe variability in end-of-life practices among tertiary care PICUs in the United States.

DESIGN

Secondary analysis of data prospectively collected from a random sample of patients (n = 10,078) admitted to PICUs affiliated with the Collaborative Pediatric Critical Care Research Network between December 4, 2011, and April 7, 2013.

SETTING

Seven clinical centers affiliated with the Collaborative Pediatric Critical Care Research Network.

PATIENTS

Patients included in the primary study were less than 18 years old, admitted to a PICU, and not moribund on PICU admission. Patients included in the secondary analysis were those who died during their hospital stay.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Two hundred and seventy-five (2.7%; range across sites, 1.3-5.0%) patients died during their hospital stay; of these, 252 (92%; 76-100%) died in a PICU. Discussions with families about limitation or withdrawal of support occurred during the initial PICU stay for 173 patients (63%; 47-76%; p = 0.27) who died. Of these, palliative care was consulted for 67 (39%; 12-46%); pain service for 11 (6%; 10 of which were at a single site); and ethics committee for six (3%, from three sites). Mode of death was withdrawal of support for 141 (51%; 42-59%), failed cardiopulmonary resuscitation for 53 (19%; 12-28%), limitation of support for 46 (17%; 7-24%), and brain death for 35 (13%; 8-20%); mode of death did not differ across sites (p = 0.58). Organ donation was requested from 101 families (37%; 17-88%; p < 0.001). Of these, 20 donated (20%; 0-64%). Sixty-two deaths (23%; 10-53%; p < 0.001) were medical examiner cases. Of nonmedical examiner cases (n = 213), autopsy was requested for 79 (37%; 17-75%; p < 0.001). Of autopsies requested, 53 (67%; 50-100%) were performed.

CONCLUSIONS

Most deaths in Collaborative Pediatric Critical Care Research Network-affiliated PICUs occur after life support has been limited or withdrawn. Wide practice variation exists in requests for organ donation and autopsy.