Displaying all 17 publications

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  1. Nadesan K
    J Clin Forensic Med, 2001 Jun;8(2):93-8.
    PMID: 16083677
    Rape is one of the fastest growing violent crimes in many parts of the world. Rape laws have been amended in most countries in an attempt to cope with the proliferation of this crime. Even though the legal definition of rape and the procedural laws have been amended, rape remains a serious problem in both the developed and developing nations. In some countries the offence of rape carries severe punishment sometimes even the death sentence. In many jurisdictions the term 'sexual penetration' is being used instead of 'sexual intercourse'. Sexual penetration includes sexual intercourse, anal intercourse, cunnilingus, fellatio or any other intrusions involving any part of a human body or of any object into the genital or anal opening of a person's body. In many countries rape and other sexual offences have been replaced with a series of gender neutral and graded offences with appropriate punishments. Medical examination can provide independent, scientific, corroborative evidence that may be of value to the court in arriving at a judgement. Doctors should have a clear understanding of different rape laws in order to apprectiate the various issues involved. Special knowledge, skill and experience are essential to conduct a good-quality medical examination. There is a dearth of trained forensic physicians in many Asian countries. However, managing a rape victim (survivor) goes for beyond proving the case in a court of law. There should be an adequate rehabilitation programme available to the victims to help them cope.
  2. Nadesan K
    J Clin Forensic Med, 2000 Dec;7(4):192-200.
    PMID: 16083669
    The term 'violence' is difficult to define. Aggressive behaviour with actual use of physical force may result in some form of physical and emotional trauma to an individual and this could be considered as violence against the person. The trauma may range from minimal physical injury to death. It is also relevant to note that in some jurisdictions if members of the law enforcement agencies with appropriate authority resort to certain acts of 'violence' for lawful purposes, then such acts of violence may be excluded from this category. However, if the law enforcement personnel exceed their limits of authority, or resort to various unacceptable and unauthorized methods of violence, then certainly such acts will become violence against the person. In today's context the word violence has expanded to encompass many issues, besides the usual physical violence such as assault. Rape, child sexual abuse, other forms of sexual abuse, non-accidental injury to children, battered wife, assault in custody, torture, victims of war, civil unrest and ethnic violence are all considered under 'violence'. While general violence is almost endemic in many countries, assault in custody, torture, political and ethnic violence are serious problems in some of the developing world. In these countries, particularly, the law enforcement agencies and other unlawful groups who are backed by politicians may inflict politically motivated violence against its citizens. In such cases attempts are often made to cover up such crimes. Forensic physicians and forensic pathologists who examine these cases may be placed in difficult positions at times owing to various 'pressures' being brought upon them to issue 'favourable' reports. On the other hand there is also a general dearth of suitably trained forensic physicians and forensic pathologists in many of these countries. Medical officers without any training in forensic medicine often undertake the examination of victims of violence, both living and fatal cases. Lack of training makes them more vulnerable to political and other forms of 'pressure'. The objective of this article is to highlight some of the common problems that are encountered, particularly in developing countries.
  3. Nadesan K
    Med Sci Law, 2000 Jan;40(1):83-7.
    PMID: 10689867
    An 18-year-old construction worker suddenly collapsed while handling a power-actuated nail gun and died shortly after. A neat, almost circular puncture wound was found on the front of his left chest. No fire-arm residues were detected on the surrounding skin. The police stated that it was an accidental injury, at a construction site, where a nail fired from a nail gun by the deceased had deflected off the wall and struck him on the front of the chest. Since the entry wound appeared to be a neat hole, and that too on the front of the left chest overlying the heart area, there was reluctance on the part of the pathologist to accept it as an accidental injury due to a ricochet. A visit to the scene, interrogation of witnesses, examination of the alleged tool and post-mortem X-ray of the deceased were undertaken prior to autopsy. A bent nail was found in the heart. The scene visit and the subsequent autopsy revealed that the nail took a roughly circular flightpath after it had struck the wall, all the while travelling with its pointed end directed forward. Within the body too, the nail maintained the same path. Various medicolegal issues are discussed pertaining to nail-gun injuries. The importance of a visit to the scene, examination of the alleged tool, interrogation of witnesses and the X-ray of the body, all prior to autopsy, are emphasized. The conclusion was: accidental death due to the unusual ricochet of a nail.
  4. Nadesan K
    Ceylon Med J, 1999 Sep;44(3):109-13.
    PMID: 10675993
  5. Nadesan K
    Am J Forensic Med Pathol, 2000 Jun;21(2):107-13.
    PMID: 10871122
    True vehicular homicides are defined as those occurrences in which a motor vehicle is intentionally used as a weapon in taking of a life. A case is presented in which the deceased was traveling in the front passenger seat of a motor car that was deliberately rammed by a heavy jeep that came in the opposite direction, resulting in a serious frontal collision. Immediately after the impact, while the occupants of the car were lying in a dazed condition, the two persons riding in the jeep escaped with a bag containing money that was in the car, leaving the jeep behind. The impact mainly involved the driver's sides of both vehicles. The driver of the car sustained serious injuries but was found to be alive, whereas the front-seat passenger, who did not show any serious external injuries, was found to be in a collapsed state and was pronounced dead on admission to the hospital within 30 minutes of the accident. The autopsy revealed that death was caused by closed hemopericardium from a ruptured right atrium. The evaluation of the external and internal injuries confirmed that the fatal injury and a few serious internal injuries were caused by the seat belt (tertiary-impact injuries). The ruptured right atrium was attributed to blunt abdominal trauma by impacting against the lap belt. The case was a true vehicular homicide in which a motor vehicle had been used as a weapon to kill a person. Various aspects pertaining to road accidents, the safety of the occupants, and the advantage and disadvantage of the safety devices are discussed.
  6. Nadesan K
    Malays J Pathol, 1997 Dec;19(2):105-9.
    PMID: 10879249
    All deaths due to unnatural causes and deaths that are believed to be due to natural causes but where the medical cause of death is not certain or known are subjected to an inquest. The objective of an inquest is to ascertain facts pertaining to the death. This is achieved by inquiry and at the conclusion of the inquest a verdict is arrived as to whether the death was due to a natural, accidental, suicidal or a homicidal cause. An inquest is not a trial. There is no complainant or defendant and at the conclusion of the inquest no judgment is passed. The inquest system exists in all parts of the world. In the English legal system, the person who conducts an inquest is called a Coroner. In Scotland, he is called a Procurator Fiscal. The United States of America use the Medical Examiner system. Most continental European countries and their former colonies follow the Code Napoleon. A postmortem examination may become necessary in certain deaths that come up for inquests. In these situations the authority which conducts the inquest will order a doctor to perform a postmortem examination (medico-legal autopsy). To perform a medico-legal autopsy, consent from the relatives of the deceased is not required. In an unexpected sudden death, only a doctor after a postmortem examination may be able to determine the cause of death. However, it is often wrongly assumed that the objective of a postmortem examination is only to ascertain the cause of death. This article deals with the purpose of the inquest and roles of the medico-legal autopsy.
  7. Nadesan K
    Malays J Pathol, 1999 Dec;21(2):95-9.
    PMID: 11068413
    Suicide is one of the ten leading causes of death in the world, accounting for more than 400,000 deaths annually. The pattern of suicide and the incidence of suicide vary from country to country. Cultural, religious and social values play some role in suicide. Compared to the West and some of the countries in the Asian region the incidence of suicide is low in Malaysia. A three-year retrospective study of all the autopsies performed at the University Hospital, Kuala Lumpur was analysed and the cases that were definitely determined as suicides were further studied. 48.8% of all suicides were ethnic Indians though Indians formed only 8% of the Malaysian population. 38.1% of suicides were Chinese who formed 26% of the population while only 3.6% were Malays, who formed 59% of the population. The preferred methods of suicide were poisoning and hanging. The majority were in the age group 20-40 yr. The study may have missed some cases that would have been wrongly concluded as accidental deaths and a few others where the police would have released the bodies without postmortem examinations.
  8. Nadesan K, Jayalakshmi P
    Ceylon Med J, 1997 Dec;42(4):185-9.
    PMID: 9476404
    Sudden maternal death from amniotic fluid embolism is a rare but serious complication which usually occurs during late pregnancy, often during labour or shortly after, with more than 80% mortality. Such a death causes immense stress to both the relatives and the attending doctors as it is sudden and unexpected. Three such deaths are discussed here. Traditionally, it was believed that this complication usually occurred in prolonged and difficult labour, but there is evidence contrary to this, and it is not possible to predict when and where this fatal complication will occur. Current views and various pathophysiologic mechanisms leading to the fatal outcome are also discussed.
  9. Nadesan K, Nagaratnam M
    J Clin Forensic Med, 2001 Sep;8(3):151-5.
    PMID: 15274967
    Sickle cell disease is an inherited disorder and individuals who are homozygous for the sickle cell gene (HbS/S) show the clinical manifestations of the disease. The individuals who are heterozygous for the sickle cell gene (HbA/S) are referred to as sickle cell trait. In these people, under normal circumstances, symptoms are usually absent or mild. However, thorough investigation of the latter condition is also important, because sickling could occur under certain situations, such as prolonged hypoxia. The level of haemoglobin S(HbS), the ratio of HbS to haemoglobin A (HbA) and the presence of variants such as haemoglobin C (HbC) can alter the entire course of the condition. An unexpected sudden death in a 41-year-old Nigerian, who was apparently in good health and was on a long duration flight, is presented. According to available evidence he was previously diagnosed to be suffering from sickle cell trait. Based on medical advice oxygen was supplied to him throughout the flight. Two hours prior to landing at the international airport in Kuala Lumpur, Malaysia he suddenly became breathless and died shortly after. Autopsy revealed that the immediate cause of death was pulmonary thrombo-embolism originating from calf vein thrombosis. It was also established that the thrombus in the calf vein was not pre-existing. Histology revealed that there was extensive and generalized sickling. Haemoglobin electrophoresis on the postmortem sample of blood confirmed that the deceased had Hb S/C disease and not sickle cell trait. The presence of HbC together with the long hours of flight and associated inactivity had probably complicated the case. Various aspects of the sickle-cell condition are highlighted. Allegations of negligence were made against the airline and the doctor who cleared the deceased in Nigeria (the deceased was employed in a well-known multinational company) for long distance non-stop air travel. Various medico-legal issues pertaining to the cause and mode of death, the importance of an accurate diagnosis of the precise sickling disorder and possible negligence on the part of various agencies are discussed.
  10. Nambiar, P., Paul, G., Swaminathan, D., Nadesan, K.
    Ann Dent, 2000;7(1):46-50.
    MyJurnal
    The estimation of age of human foetal remains is of great medico-legal importance. When the remains are intact and fresh, various morphological features such as crown-heel length, weight, appearance of ossification centres particularly around the ankles and knees and other parameters could be used to make a reasonable estimation of the period of gestation. In cases of criminal abortion, infanticide and child murder the question of age of the foetus, viability, live birth and a separate existence become very important. In practice, often at the time of detection, the remains are decomposed or skeletonised. In such a situation the examination of developing teeth will provide a reliable answer pertaining to the foetal age, the possibility of a separate existence and even the period of survival after birth. The.age determination from dental examination is possible from approximately 10 weeks intrauterine up to old age. The presence of neonatal line (birth line) in both dentine and enamel indicates live birth and a separate existence. It is possible that the time period of survival can be estimated by measuring postnatal deposition of these hard tissues. An intact human foetus that has undergone mild to moderate putrefaction was studied. The study of the morphological features and the ossification centres suggested that its approximate age was around nine months intrauterine. It was not possible to decide whether it was a live birth and had a separate existence. The examination of the developing first deciduous molar of the mandible suggested the approximate age was around 30-32 weeks intrauterine. The importance of examination of developing teeth in foetal remains (including neonates), particularly associated with putrefaction or skeletonisation is emphasized.
  11. Nadesan K, Omar SZ
    Malays J Pathol, 2002 Jun;24(1):9-14.
    PMID: 16329550
  12. Nadesan K, Beng OB
    Med Sci Law, 2001 Jan;41(1):78-82.
    PMID: 11219130
    Deaths due to plastic bag suffocation or plastic bag asphyxia are not reported in Malaysia. In the West many suicides by plastic bag asphyxia, particularly in the elderly and those who are chronically and terminally ill, have been reported. Accidental deaths too are not uncommon in the West, both among small children who play with shopping bags and adolescents who are solvent abusers. Another well-known but not so common form of accidental death from plastic bag asphyxia is sexual asphyxia, which is mostly seen among adult males. Homicide by plastic bag asphyxia too is reported in the West and the victims are invariably infants or adults who are frail or terminally ill and who cannot struggle. Two deaths due to plastic bag asphyxia are presented. Both the autopsies were performed at the University Hospital Mortuary, Kuala Lumpur. Both victims were 50-year old married Chinese males. One death was diagnosed as suicide and the other as sexual asphyxia. Sexual asphyxia is generally believed to be a problem associated exclusively with the West. Specific autopsy findings are often absent in deaths due to plastic bag asphyxia and therefore such deaths could be missed when some interested parties have altered the scene and most importantly have removed the plastic bag. A visit to the scene of death is invariably useful.
  13. Nadesan K, Kumari C, Afiq M
    J Forensic Leg Med, 2017 Aug;50:1-5.
    PMID: 28651196 DOI: 10.1016/j.jflm.2017.05.008
    Heat stroke is a medical emergency which may lead to mortality unless diagnosed early and treated effectively. Heat stroke may manifest rapidly, hence making it difficult to differentiate it from other clinical causes in a collapsed victim.(1) We are presenting a case report of twelve patients who were admitted to our emergency department from a music festival held on 13-15th of March 2014. They developed complications arising from a combination of severe adverse weather condition, prolonged outdoor physical exertion due to long hours of dancing and drug-use, resulting in heat stroke. Three of them died while the remaining patients survived. Their condition was initially misdiagnosed as a classical illicit drug overdose. This was based on the history of drug ingestion by some of the patients who attended the music festival on that day. The information in this case report aims, to create awareness amongst members of the medical team on duty in outdoor events, pre hospital responders and ED physicians when treating and managing similar cases in the future. In addition it is intended to warn the organizers of such events to take adequate precautions to avoid such tragedies in the future.
  14. Nadesan K, Chan SP, Wong CM
    Malays J Pathol, 1998 Jun;20(1):49-54.
    PMID: 10879265
    Heat stroke, which is also known as "sun stroke," is a medical emergency, and fatalities can occur unless it is diagnosed early and treated efficiently. Heat stroke may manifest quite suddenly, giving little time to differentiate it from extreme physical exhaustion in collapsed subjects. It is also known to lead to serious disseminated intravascular coagulation. Sudden death in a young female is presented who collapsed after trekking in a hilly, jungle area in Malaysia on a warm, humid day. She had joined a weight reduction programme a few weeks earlier. She was found collapsed and in a semiconscious state in the jungle by her groupmates and was taken to hospital. On admission she was unconscious, hyperpyrexic, with rapid, thready pulse and a low blood pressure. Biochemical studies revealed metabolic acidosis, elevated liver and cardiac enzymes and impairment of renal function. Her coagulation profile was found to be impaired and she started bleeding through the mouth and nostrils. She also developed watery diarrhoea and initially a septicaemic condition, including acute enteritis was suspected. Despite active treatment, her condition deteriorated and she died eight hours after admission. Autopsy confirmed a generalised bleeding tendency, with pulmonary, oesophageal and gastrointestinal mucosal haemorrhages. Flame-shaped subendocardial shock haemorrhages were seen in the interventricular septum on the left side of the heart. The findings support a diagnosis of heat stroke. Various aspects related to heat stroke, the autopsy diagnosis and its prevention are discussed.
  15. Ly CK, Nadesan K, Samberkar SP, Byard RW, Samberkar PN
    Med Leg J, 2021 Mar;89(1):37-39.
    PMID: 33308004 DOI: 10.1177/0025817220960597
    The prevalence of ischaemic heart disease with associated cardiomegaly and other chronic diseases such as diabetes mellitus has increased in Malaysia in recent years. As the contribution to mortality from ischaemic heart disease/cardiomegaly in different ethnic populations is unclear, a three year (January 2013-December 2015) retrospective study of autopsy cases was undertaken at the Department of Forensic Pathology, University Malaya Medical Centre. There were 80 cases with lethal ischaemic heart diseases/cardiomegaly. The age range was 30-69 years (mean 50.19 years) with a male to female ratio of 39:01. The most vulnerable age was 50-59 years accounting for 38.75% of cases. Malays accounted for 15% of cases, Indians for 32.5% and Chinese for 36.25%. Although in 35 cases (43.75%) there was a history suggestive of ischaemic heart disease, the remaining 45 cases (56.25%) were apparently healthy until the terminal collapse. It appears that Indian males in the 50-59 year age range are most at risk for lethal cardiac events in this population, most often with no preceding symptoms or signs. The study demonstrates the value of studying subpopulations for disease risk rather than relying on accrued general population data.
  16. Toh KW, Nadesan K, Sie MY, Vijeyasingam R, Tan PS
    Anesth Analg, 2004 Aug;99(2):350-2, table of contents.
    PMID: 15271703
    Arrhythmogenic right ventricular dysplasia is an inherited disease causing fatty replacement of heart tissue. This disease often presents as T-wave inversion in the anterior leads of the electrocardiogram (ECG) with life-threatening ventricular arrhythmias. In older patients, progressive right and left ventricular failure can develop. This is a case report of postoperative death occurring in a 59-yr-old woman with undiagnosed arrhythmogenic right ventricular dysplasia after hepatic cystectomy. The patient had T-wave inversion in the inferior ECG leads and no history of arrhythmias. During general anesthesia, cardiovascular collapse occurred in the absence of arrhythmias that was unresponsive to resuscitation.
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