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Biomedical subjects

A M Kemp

Publications and source records attributed to A M Kemp.

14 recordsLinked to original sources

Apnoea and brain swelling in non-accidental head injury.

AIMS: (1) To identify whether infants and young children admitted to hospital with subdural haematomas (SDH) secondary to non-accidental head injury (NAHI), suffer from apnoea leading to radiological evidence of hypoxic ischaemic brain damage, and whether this is related to a poor prognosis; and (2) to determine what degree of trauma is associated with NAHI. METHODS: Retrospective case series (1992-98) with case control analysis of 65 children under 2 years old, with an SDH secondary to NAHI. Outcome measures were presenting symptoms, associated injuries and apnoea at presentation, brain swelling or hypoxic ischaemic changes on neuroimaging, and clinical outcome (KOSCHI). RESULTS: Twenty two children had a history of apnoea at presentation to hospital. Apnoea was significantly associated with hypoxic ischaemic brain damage. Severe symptoms at presentation, apnoea, and diffuse brain swelling/hypoxic ischaemic damage were significantly associated with a poor prognosis. Eighty five per cent of cases had associated injuries consistent with a diagnosis of non-accidental injury. CONCLUSIONS: Coma at presentation, apnoea, and diffuse brain swelling or hypoxic ischaemia all predict a poor outcome in an infant who has suffered from SDH after NAHI. There is evidence of associated violence in the majority of infants with NAHI. At this point in time we do not know the minimum forces necessary to cause NAHI. It is clear however that it is never acceptable to shake a baby.

Apnea↗

The incidence of severe physical child abuse in Wales.

OBJECTIVES: The purposes of this study were: (1) to ascertain the incidence and nature of severe physical child abuse in Wales; (2) to ascertain the incidence of all physical abuse in babies under 1 year of age; and (3) to determine whether child protection registers (CPR) accurately reflect the numbers of children who are physically abused. METHODS: This is a population-based incidence study based in Wales, UK, for 2 years from April 1996 through March 1998. Children studied were under the age of 14 with severe physical abuse consistent with the criminal law level of Grievous Bodily Harm. This included seven categories of injury (death; head injury including subdural hemorrhage; internal abdominal injury; physical injury in Munchausen Syndrome by Proxy including suffocation; fracture; burn or scald; adult bite). Cases were ascertained by a pediatrician surveillance reporting system (WPSU). A criterion for inclusion was multidisciplinary agreement that physical abuse had occurred (at case conference, strategy meeting, or Part 8 Review). The incidence of all babies under 1 year of age with physical abuse was also studied. Ascertainment of babies under the age of 1 year was undertaken from CPR as well as the WPSU. RESULTS: Severe abuse is six times more common in babies [54/100,000/year (95% CI +/- 17.2)] than in children from 1 year to 4 years of age [9.2/100,000 (95% CI +/- 3.6)]. It is 120 times more common than in 5- to 13-year-olds [0.47/100,000 (95% CI +/- 0.47)]. This is mainly because two types of serious abuse (brain injury including subdural hemorrhage and fractures) are more common in babies under the age of 1 year than older children. Using data from two sources (the WPSU and CPRs), the incidence of physical abuse in babies is 114/100,000 (CI 114 +/- 11.8) per year. This equates to 1 baby in 880 being abused in the first year of life. The largely rural Health Authority area in Wales had incidence figures for abuse in babies that were 50% of the three other predominantly urban Health Authority areas. Boys throughout the series were more at risk of being severely abused than girls (p < .025). Only 29% of the babies under 1 year of age on the CPR had actually been injured. Thirty percent of abused babies under the age of 1 year and 73% of severely abused children over the age of 1 year had caused previous concern to health professionals regarding abuse or neglect. CONCLUSIONS: Physical abuse is a significant problem in babies under the age of 1 year. Very young babies (under 6 months old) have the highest risk of suffering damage or death as a result of physical abuse. Severe abuse, in particular subdural hematoma and fracture, is much more common in babies than in older children. There is evidence of failure of secondary prevention of child abuse by health professionals, with a greater need to act on concerns regarding abuse and neglect. Interagency child protection work in partnership with parents should focus more on protecting babies under age 1 year from further abuse than on maintenance of the infant within an abusive home. The CPR is not intended as an accurate measure of children suffering abuse. It is a record of children requiring a child protection plan and must not be used as a measure of numbers of abused children.

Abdominal Injuries↗

Investigating subdural haemorrhage in infants.

When an infant or young child presents with subdural haemorrhage, the diagnostic priority is to exclude physical child abuse. A team approach should be adopted for the clinical child protection investigation. The diagnostic process is inevitably one of detective work; appropriate radiological, ophthalmological, haematological, biochemical, and postmortem investigations are discussed.

Child Abuse↗

A scoring system for bruise patterns: a tool for identifying abuse.

AIMS: To determine whether abused and non-abused children differ in the extent and pattern of bruising, and whether any differences which exist are sufficiently great to develop a score to assist in the diagnosis of abuse. METHODS: Total length of bruising in 12 areas of the body was determined in 133 physically abused and 189 control children aged 1-14 years. RESULTS: Our method of recording bruises by site, maximum dimension, and shape was easy to use. There were clear differences between cases and controls in the total length of bruises. These differences were at their greatest in the head and neck and were less notable in the limbs. A scoring system was developed using logistic regression analysis using total lengths of bruising in five regions of the body. Good discrimination between the two sets of children was achieved using this score; by including a variable that indicates whether a bruise had a recognisable shape the discrimination could be made even better. Given a prior probability of abuse the score can be used to give posterior odds of abuse, given a particular bruising pattern. CONCLUSIONS: The scoring system provides a measure that discriminates between abused and non-abused children, which should be straightforward to implement, though the results must be interpreted carefully. We do not see this score as replacing the complex qualitative analysis of the diagnosis of abuse. This clearly includes history as well as examination, but rather as the beginning of the development of an important aid in this process.

Adolescent↗

Subdural haemorrhages in infants: population based study.

OBJECTIVES: To identify the incidence, clinical outcome, and associated factors of subdural haemorrhage in children under 2 years of age, and to determine how such cases were investigated and how many were due to child abuse. DESIGN: Population based case series. SETTING: South Wales and south west England. SUBJECTS: Children under 2 years of age who had a subdural haemorrhage. We excluded neonates who developed subdural haemorrhage during their stay on a neonatal unit and infants who developed a subdural haemorrhage after infection or neurosurgical intervention. MAIN OUTCOME MEASURES: Incidence and clinical outcome of subdural haemorrhage in infants, the number of cases caused by child abuse, the investigations such children received, and associated risk factors. RESULTS: Thirty three children (23 boys and 10 girls) were haemorrhage. The incidence was 12.8/100 000 children/year (95% confidence interval 5.4 to 20.2). Twenty eight cases (85%) were under 1 year of age. The incidence of subdural haemorrhage in children under 1 year of age was 21.0/100 000 children/year and was therefore higher than in the older children. The clinical outcome was poor: nine infants died and 15 had profound disability. Only 22 infants had the basic investigations of a full blood count, coagulation screen, computed tomography or magnetic resonance imaging, skeletal survey or bone scan, and ophthalmological examination. In retrospect, 27 cases (82%) were highly suggestive of abuse. CONCLUSION: Subdural haemorrhage is common in infancy and carries a poor prognosis; three quarters of such infants die or have profound disability. Most cases are due to child abuse, but in a few the cause is unknown. Some children with subdural haemorrhage do not undergo appropriate investigations. We believe the clinical investigation of such children should include a full multidisciplinary social assessment, an ophthalmic examination, a skeletal survey supplemented with a bone scan or a skeletal survey repeated at around 10 days, a coagulation screen, and computed tomography or magentic resonance imaging. Previous physical abuse in an infant is a significant risk factor for subdural haemorrhage and must be taken seriously by child protection agencies.

Child Abuse↗

Suffocation, choking, and strangulation in childhood in England and Wales: epidemiology and prevention.

The causes, classification, and prevention of mechanical asphyxial death in children were examined. The Office of Population Censuses and Surveys (OPCS) identified children, under 15 years of age, who had died as a result of choking, suffocation, or strangulation in England and Wales during the years 1990 and 1991. Cases in the International Classification of Diseases (ICD) codes of E911-3, E953, E963, and E983 were selected and case details from HM coroners' records and the death certificates were extracted. The OPCS identified 136 children (99 boys, 37 girls) in the two year period, 65% were under 3 years of age. The children were classified as dying from choking (21 cases), aspirating gastric contents (39 cases), suffocation (29 cases), strangulation (11 cases), and hanging (36 cases). The strangulation cases could be further subdivided into a group of 12 younger children who were suspended from ligatures around the home and a group of 21 boys (8-14 years) who died of self initiated hanging. Overall, 11 children were deliberately killed and 31 children died in beds or cots. Children whose deaths are classified as being due to aspiration of vomit appear to be cases of the sudden infant death syndrome or background medical conditions. This study suggests the need for advice on maintaining a safe sleeping environment. Only one child choked on a toy and European Standards for Toy Safety appear to have been successful. The prevention of hanging in the group of older boys needs further exploration.

Adolescent↗

Accidents and child abuse in bathtub submersions.

Non-accidental bath drowning is an infrequently reported form of child abuse. Details of 44 children who suffered from drowning or near drowning in the bath were analysed from a two year (1988-9) UK study to investigate factors that might point to abuse. Cases of near drowning were notified through the British Paediatric Surveillance Unit inquiry system and drowning cases from the Office of Population Censuses and Surveys, the Scottish Government Record Office, and the Northern Ireland Office. In 28 cases the story was of accidental submersion with a baby of modal age 9 months being left unsupervised in a bath. Two other neonates briefly slipped from the parents arms while having a bath. Four bathtub drownings were related to epilepsy. In contrast 10 cases (six drowning and four near drowning) had stories very suggestive of abuse with inconsistent histories, previous history of abuse, and late presentation for medical care. A diagnosis of abuse should be considered in the differential diagnosis of atypical bathtub immersions in the absence of epilepsy and developmental delay.

Accidents, Home↗

Epilepsy in children and the risk of drowning.

To clarify the risks of drowning for children with epilepsy we have studied the records of the 306 children who drowned or nearly drowned in the UK in 1988 and 1989. Ten children with incidents related to epilepsy presented over the study period, four of whom drowned. Children with epilepsy had a higher incidence of submersion accidents but no child participating in supervised swimming drowned. Two children died in the bath. Five children had special needs. We conclude that children with epilepsy can enjoy swimming with a friend in a lifeguard supervised swimming pool. They should be encouraged to shower in a non-glass cubicle rather than have a bath. The bathroom should remain unlocked. Children with poorly controlled epilepsy or associated learning difficulties are at a higher risk from all accident trauma. They need a very high level of supervision while swimming and advice should be given on an individual basis according to what is considered realistic for that child.

Adolescent↗

Outcome in children who nearly drown: a British Isles study.

OBJECTIVE: To determine the outcome in nearly drowned children in the British Isles and identify factors that might predict a poor prognosis. DESIGN: Study of drowned and of nearly drowned children aged less than or equal to 14. Information on nearly drowned children admitted to hospital obtained from consultant paediatricians returning monthly notification cards through the British Paediatric Surveillance Unit. Information on drowned children obtained from Office of Population Censuses and Surveys and other national epidemiological offices. SETTING: British Isles, 1988 and 1989. SUBJECTS: 330 children who had confirmed submersion incidents. 142 died before admission to hospital and 188 children were admitted after nearly drowning. MAIN OUTCOME MEASURES: Death, full recovery, or degree of handicap after near drowning and signs on admission to hospital. RESULTS: All of the children who were conscious on admission fully recovered. Of the 64 children unconscious on admission, 31 had normally reactive pupils and all but three (all of whom had severe preexisting neurological disease) recovered fully. Of the 33 children with fixed dilated pupils on admission, 10 fully recovered, 13 died, and 10 had severe neurological deficit. Spontaneous respiratory effect on admission was associated with normal survival. Pupils that remained dilated six hours after admission and fits continuing 24 hours after admission predicted a poor outcome. CONCLUSION: Children can survive normally after near drowning in the British Isles, particularly if they have been hypothermic. Resuscitation should not be abandoned in nearly drowned children until they have been rewarmed.

Adolescent↗

[Cardiotocographic monitoring of deliveries. A prospective comparative study of 2 types of electrodes].

The number of electrodes employed, the frequency of reapplication, the technical quality of monitoring and the complications of use of spiral electrodes and Copeland electrodes for cardiotocographic monitoring of deliveries are assessed in a prospective randomized investigation. The number of electrodes employed and the frequency of reapplications were significantly lower employing Copeland electrodes. Similarly, the electrode signal was significantly better as assessed by the percentage of the duration of monitoring in which the cardiotocogram did not register during the second stage of labour on account of poor electrode signals. No differences were found in the frequencies of complications or subjective discomfort in the mother on employing the two types of electrodes.

Adult↗

Childhood drowning.

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Adolescent↗