Inflicted submersion in childhood

Pediatric drowning: a 20-year review of autopsied cases: II. Pathologic features

The pathologic findings in autopsies of drowning victims are nonspecific and vary from case to case. However, most reported pathologic series of drowning cases exclude children and do not take into consideration the unique circumstances surrounding bathtub drownings. In addition, the effect of resuscitation on the autopsy findings has not been studied in children. A retrospective review of autopsy records of non-bathtub drownings from a 20-year period (1984-2003) was performed and 63 cases were identified in 45 males and 18 females (age range 9 months to 17 years). The incidence of frothy exudate, pleural effusion, and increased lung weight was 43%, 36%, and 80%, respectively. The incidence of frothy exudate and the combination of all 3 factors was significantly higher in cases with no resuscitation compared with those cases with attempted resuscitation with or without delayed death. As the interval between the drowning episode and autopsy increased, the incidence of frothy exudate decreased significantly. There was no relationship between these findings and the age and sex of the decedent. Other clinical conditions or occult pathologic findings that may have contributed to death were found in 8 cases (13%). The findings highlight the need for thorough clinicopathologic correlation in cases of drowning to accurately interpret the pathologic findings.

Noyades accidentelles en milieu non maritime

OBJECTIVE

Unintentional drowning is an important public health problem. Effective prevention measures require detailed knowledge of the specific epidemiology of fresh water drowning and near-drowning incidents.

METHODS

We analyzed statistics about these incidents in Isère (district in southeastern France) from 1996 through 2003. Data came from district emergency medical services (SAMU) and from hospitals.

RESULTS

There were 101 drowning incidents (1.3 per 100,000 person-years), 77% involving males and 23% females. Mortality was high (38%) and involved mainly males (90%). Natural water bodies were the site of many cases (39%) and the associated mortality rate was high (69%). These cases raise specific problems of prevention and assistance to victims. Drowning incidents occurred most commonly (49%) in swimming pools and involved mainly children (82%), but mortality was lower (20%) in these cases. The remaining cases (12%) took place in bathtubs and involved mainly children (75%). The mortality rate for these was relatively low (14%).

CONCLUSION

Only prevention measures that fully take into account the different characteristics of each drowning site can reduce the incidence of these events.

Pediatric Drowning

Bathtub drownings are a significant cause of mortality in the pediatric population. Infants and preambulatory children are disproportionately affected, and several studies have suggested that preventative campaigns have been ineffective in the prevention of such deaths. To obtain a better understanding of the factors associated with bathtub drownings, a retrospective review of autopsy records over a 20-year period (1984-2003) was performed. Eighteen consecutive cases of bathtub drownings were identified in 8 males and 10 females (ratio, 0.8; P = 0.6374). The age ranged from 6 months to 70 months (mean, 17 months; median, 11 months), and most cases occurred in infants aged 12 months or less (72%). Males tended to be older than females (mean, 23 months versus 11 months; P = 0.1889). Associated factors included inadequate adult supervision (89%), cobathing (39%), the use of infant bath seats (17%), and coexistent medical disorders predisposing the infant or child to the drowning episode (17%). The pathologic findings included a frothy exudate (28%), pleural effusion (28%), and increased lung weight (61%). All toxicologic samples submitted for analysis were negative. The present study highlights the factors associated with bathtub drownings and may aid in the prevention of such deaths in the pediatric population.

Submersion

Many thousands of individuals are submersion victims each year in the United States. The majority of victims are young, previously healthy people. There have been no recent breakthroughs in medical technology or treatment modalities that have improved survival rates for submersion victims. The key to their successful outcome and return to productive, full lives is aggressive resuscitation by emergency physicians and prehospital care providers. Most submersion incidents should never take place. Emergency physicians can take the lead in public education and prevention.

Children under 5 years presenting to paediatricians with near-drowning

OBJECTIVE

To characterize children aged under 5 years who present to paediatricians following near-drowning and the circumstances surrounding the event, identify high-risk groups and document short-term outcome.

METHODOLOGY

Monthly notifications to the Australian Paediatric Surveillance Unit (an active, national surveillance system) between 1994 and 1996. Collection of additional case information from reporting doctors by postal questionnaire.

RESULTS

All 169 reported cases of near-drowning were admitted to hospital (mean (SD) stay 6 (17) days) and 15% required intensive care (mean (SD) stay 19 (32) days). The mean (SD) age for near drowning was 26 (13) months and 22% children were aged between 12 and 18 months. Males predominated (1.6:1) and 69 (41%) of episodes occurred in summer (December - February). The majority (82%) of near-drownings occurred in the child's home, usually in a swimming pool or bath. Children who nearly drowned at home were significantly younger than those who nearly drowned in natural waterways or public pools. Neurological damage at discharge following near-drowning was reported in 7%.

CONCLUSIONS

Children reported in this national case series represent the severe end of the spectrum of those who nearly drown, as indicated by their presentation to a paediatrician, universal hospitalization and adverse neurological outcome. The home is the site of most near-drownings and males and toddlers were at particular risk. Unimpeded access to pools and lack of supervision were identified as potentially modifiable factors for prevention. The study suggests the need for additional community education regarding the risks of near-drowning and for further research on long-term neuro-developmental outcomes following near-drowning.

Characteristics of drowning by different age groups

CONTEXT

While it is known that the risk of unintentional drowning varies with age, the manner in which drowning episode characteristics vary by age has not been well described. Such information might be useful for prevention.

OBJECTIVE

To describe characteristics of drowning by age group.

DESIGN

Retrospective review of the characteristics of drowning victims and their drowning incidents obtained from death certificates, medical examiner, pre-hospital, emergency department, and hospital records.

SETTING

Three counties in Western Washington state.

SUBJECTS

Residents who died (n=709) of unintentional drowning within the study region during 1980 through 1995.

OUTCOMES

Age specific counts, proportions, and rates per million person years were estimated for and compared among six age groups.

RESULTS

Rates varied by age group: 0-4 (30.5), 5-14 (11.6), 15-19 (29.9), 20-34 (21.5), 35-64 (12.5), and 65 years or older (21.2). Among those 0-4 years, the proportions that drowned in pools, bathtubs, and open water were nearly equal. But from age 5-64 years, over 69% of deaths were in open water. Among those 65 years and older, the deaths were almost evenly divided between bathtub and open water; bathtub drowning rates were highest in this age group, 10.9. Pre-drowning activities were divided into boating, swimming, car passenger, bathing, and fell in while doing something else. Most (64/89, 76%) victims aged 0-4 years drowned while bathing or after falling in. Among those 15-19 years, most occurred while swimming (24/79, 34%) or boating (22/79, 31%). The drowning event was least often witnessed among those 0-4 years (10/36, 28%), and most often witnessed (44/58, 76%) among those 15-19 years. Medical care (pre-hospital, emergency department, or hospital) was most often involved in drownings of those 0-4 years (70/89, 79%) and least among those over 65 years (11/86, 13%).

CONCLUSION

The characteristics of drowning episodes vary greatly by age. Different prevention strategies may be needed for different age groups.

Child abuse in the pediatric intensive care unit

Critically ill and injured children due to abusive or inflicted injury represent a growing challenge for pediatric intensive care unit personnel in terms of the number of patients seen each year in the United States and the intellectual and emotional response required to deal with this tragic problem. We present a distillation of the current knowledge of childhood physical abuse with a focus on the child with inflicted injury who is admitted to the pediatric intensive care unit. In addition to a discussion of the epidemiology, clinical presentation, an approach to diagnosis, and treatment strategies, we also explore the legal issues that confront pediatric intensive care unit physicians in relation to determination of brain death, suitability of victims for organ donation, and the physician's role in the criminal investigation of child abuse and as a witness for court proceedings.

Near drowning. Rescuing patients through education as well as treatment

Optimal prehospital care of near-drowning victims requires bystanders and emergency-response personnel who are knowledgeable in CPR and proper rescue techniques. Primary care physicians can play an important role when asked to teach CPR, first-responder, or emergency-care classes or to serve as medical director for a local ambulance group. Rapid response and appropriate ventilation and airway protection by prehospitalization providers can improve the condition of near-drowning victims on arrival in the emergency department and their chances for neurologically intact survival. With knowledge of the local risks of drowning, proper emergency treatment, appropriate referral, and conscientious efforts at prevention conducted in the office and the community, primary care physicians can have maximum impact on this summer-time killer.

Environmental emergencies

This article reviews the pearls and pitfalls of high-altitude sickness, decompression sickness, and barotrauma; new findings relevant to the near-drowning patient; continued controversies on hyperbaric oxygen for carbon monoxide poisoning; pitfalls in hypothermia management; and updates on the management of venomous snakebites.