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1.
Int J Mol Sci ; 24(15)2023 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-37569597

RESUMO

During pregnancy, reactive oxygen species (ROS) serve as crucial signaling molecules for fetoplacental circulatory physiology. Oxidative stress is thought to sustain the pathogenesis and progression of hypoxic-ischemic encephalopathy (HIE). A retrospective study was performed on the brains and placentas of fetuses and newborns between 36-42 weeks of gestation (Group_1: Fetal intrauterine deaths, Group_2: Intrapartum deaths, Group_3: Post-partum deaths, Control group sudden neonatal death); all groups were further divided into two subgroups (Subgroup_B [brain] and Subgroup_P [placenta]), and the study was conducted through the immunohistochemical investigations of markers of oxidative stress (NOX2, 8-OHdG, NT, iNOS), IL-6, and only on the brain samples, AQP4. The results for the brain samples suggest that NOX2, 8-OHdG, NT, iNOS, and IL-6 were statistically significantly expressed above the controls. iNOS was more expressed in the fetal intrauterine death (Group_1) and less expressed in post-partum death (Group_3), while in intrapartum death (Group_2), the immunoreactivity was very low. IL-6 showed the highest expression in the brain cortex of the fetal intrauterine death (Group_1), while intrapartum death (Group_2) and post-partum death (Group_3) showed weak immunoreactivity. Post-partum death (Group_3) placentas showed the highest immunoreactivity to NOX2, which was almost double that of the fetal intrauterine death (Group_1) and intrapartum death (Group_2) placentas. Placental tissues of fetal intrauterine death (Group_1) and intrapartum death (Group_2) showed higher expression of iNOS than post-partum death (Group_3), while the IL-6 expression was higher in the fetal intrauterine death (Group_1) than the post-partum death (Group_3). The AQP4 was discarded as a possible marker because the immunohistochemical reaction in the three groups of cases and the control group was negative. The goal of this study, from the point of view of forensic pathology, is to provide scientific evidence in cases of medical liability in the Obstetric field to support the clinical data of the timing of HIE.


Assuntos
Hipóxia-Isquemia Encefálica , Placenta , Humanos , Gravidez , Recém-Nascido , Feminino , Placenta/patologia , Estudos Retrospectivos , Interleucina-6 , Morte Fetal/etiologia , Natimorto , Encéfalo , Hipóxia-Isquemia Encefálica/patologia , Estresse Oxidativo
2.
Medicina (Kaunas) ; 59(11)2023 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-38003977

RESUMO

Background: Defensive medicine is characterized by medical decisions made primarily as a precaution against potential malpractice claims. For psychiatrists, professional responsibility encompasses not only the appropriateness of diagnosis and treatment but also the effects of their interventions on patients and their behaviors. Objective: To investigate the socio-demographic, educational, and occupational characteristics and work-related attitudes that may serve as predictors of defensive medicine among Italian psychiatrists. This research extends the results of a previous analysis based on a national survey. Methods: A secondary analysis of the database of a national survey on attitudes and behaviors of Italian psychiatrists regarding defensive medicine and professional liability was performed for this study. Results: Among 254 surveyed psychiatrists, 153 admitted to practicing defensive medicine, while 101 had this attitude with less than half of their patients. The first group was predominantly comprised of women (p = 0.014), who were younger in age (43.34 y 9.89 vs. 48.81 y 11.66, p < 0.001) and had fewer years of professional experience (12.09 y ± 9.8 vs. 17.46 y ± 11.2, p < 0.001). There were no significant differences in prior involvement in complaints (p = 0.876) or the usual place of work (p = 0.818). The most prominent predictors for practicing defensive medicine were (1) considering guidelines and good clinical practices not only for their clinical efficacy but also or exclusively for reducing the risk of legal complaints for professional liability (OR = 3.62; 95%CI, 1.75-7.49), and (2) hospitalizing patients with violent intentions even if not warranted according to their mental state (OR = 2.28; 95%CI, 1.50-3.46, p < 0.001). Prioritizing protection from professional liability over patients' actual needs in prescribing or adjusting drug dosages and in involuntary hospitalization, as well as prescribing lower dosages than recommended for pregnant patients, were identified as additional predictors. Finally, years of professional experience exhibited a protective function against defensive practices. Conclusions: Psychiatrists advocate the need to implement a 'risk management culture' and the provision of more balanced duties in order to ensure ethical and evidence-based care to their patients. A particular source of concern stems from their professional responsibility towards not only the health of patients but also their behavior. However, these aspects conflict with a limited potential for assessment and intervention based on effective clinical tools. A reform of professional liability that considers the specificities of patients cared for by mental health services could contribute to reducing the risk of defensive medicine.


Assuntos
Imperícia , Psiquiatria , Humanos , Feminino , Medicina Defensiva , Inquéritos e Questionários , Responsabilidade Legal
3.
Medicina (Kaunas) ; 57(2)2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33535407

RESUMO

Epidural hematomas (EDHs) and subdural hematomas (SDHs), or so-called extra-axial bleedings, are common clinical entities after a traumatic brain injury (TBI). A forensic pathologist often analyzes cases of traumatic EDHs or SDHs due to road accidents, suicides, homicides, assaults, domestic or on-the-job accidents, and even in a medical responsibility scenario. The aim of this review is to give an overview of the published data in the medical literature, useful to forensic pathologists. We mainly focused on the data from the last 15 years, and considered the most updated protocols and diagnostic-therapeutic tools. This study reviews the epidemiology, outcome, and dating of extra-axial hematomas in the adult population; studies on the controversial interdural hematoma are also included.


Assuntos
Lesões Encefálicas Traumáticas , Hematoma Epidural Craniano , Suicídio , Adulto , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/epidemiologia , Hematoma Epidural Craniano/epidemiologia , Hematoma Epidural Craniano/etiologia , Hematoma Subdural/epidemiologia , Hematoma Subdural/etiologia , Humanos , Estudos Retrospectivos
4.
Medicina (Kaunas) ; 57(6)2021 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-34203105

RESUMO

Background: Neutropenic enterocolitis (NE), which in the past was also known as typhlitis or ileocecal syndrome for the segment of the gastrointestinal tract most affected, is a nosological entity that is difficult to diagnose and whose pathogenesis is not fully known to date. Initially described in pediatric patients with leukemic diseases, it has been gradually reported in adults with hematological malignancies and non-hematological conditions, such as leukemia, lymphoma, multiple myeloma, aplastic anemia, and also myelodysplastic syndromes, as well as being associated with other immunosuppressive causes such as AIDS treatment, therapy for solid tumors, and organ transplantation. Therefore, it is associated with high mortality due to the rapid evolution in worse clinical pictures: rapid progression to ischemia, necrosis, hemorrhage, perforation, multisystem organ failure, and sepsis. Case report: A case report is included to exemplify the clinical profile of patients with NE who develop sepsis. Literature Review: To identify a specific profile of subjects affected by neutropenic enterocolitis and the entity of the clinical condition most frequently associated with septic evolution, a systematic review of the literature was conducted. The inclusion criteria were as follows: English language, full-text availability, human subjects, and adult subjects. Finally, the papers were selected after the evaluation of the title and abstract to evaluate their congruity with the subject of this manuscript. Following these procedures, 19 eligible empirical studies were included in the present review. Conclusions: Despite the recent interest and the growing number of publications targeting sepsis and intending to identify biomarkers useful for its diagnosis, prognosis, and for the understanding of its pathogenesis, and especially for multi-organ dysfunction, and despite the extensive research period of the literature review, the number of publications on the topic "neutropenic enterocolitis and sepsis" appears to be very small. In any case, the extrapolated data allowed us to conclude that the integration of medical history, clinical and laboratory data, radiological imaging, and macroscopic and histological investigations can allow us to identify a specific pathological profile.


Assuntos
Enterocolite Neutropênica , Linfoma , Neoplasias , Sepse , Adulto , Criança , Enterocolite Neutropênica/diagnóstico , Humanos , Prognóstico , Sepse/diagnóstico
5.
Acta Biomed ; 94(1): e2023018, 2023 02 13.
Artigo em Inglês | MEDLINE | ID: mdl-36786259

RESUMO

Medical progress and the consequent gradual ageing of the population increase the number of people in Europe who require continuous care, as they suffer from chronic diseases or senility. This demand is disproportionate if compared to the economic resources of health systems and is, therefore, heavily supported by the activity of the so-called "informal caregivers". With our article we propose to depict the current scenario in Italy, dwelling on the safeguards, to date, aimed at informal caregivers, which are insufficient to correct the criticalities associated with the burdensome assistance provided by such figures. Such critical issues result in a real risk for the health of informal caregivers and their loved ones and require urgent action by the health system. If it is true that health welfare is not able to protect the increasing number of people who are not self-sufficient, it is necessary to invest at least on specific measures to preserve the health and skills of those who are at the forefront of this hidden welfare. (www.actabiomedica.it).


Assuntos
Cuidadores , Humanos , Europa (Continente) , Itália
6.
J Med Case Rep ; 17(1): 424, 2023 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-37814318

RESUMO

BACKGROUND: Nitrous oxide (N2O) is a gas used in medicine for its analgesic, anxiolytic and amnesic properties. It is a drug considered safe if adequately administered. In the literature, accidental N2O-related deaths are rare. They are mostly related to inhalation of this substance for recreational and autoerotic purposes; rarely are reported deaths due to incorrect administration of medical gas in anesthesia. The diagnosis of death from acute N2O intoxication is complex and is generally an exclusion diagnosis: the macroscopic and microscopic post-mortem signs are entirely nonspecific. Furthermore, the circumstantial data are not always supportive and can even be confusing, mainly if the death occurred inside a hospital. CASE PRESENTATION: We describe a particular case of death from acute nitrous oxide poisoning in a hospital environment, of a Caucasian male of 72-years-old. The intoxication occurred during a minimally invasive vascular surgery due to an incorrect assembly of the supply lines of medical gases (O2 and N2O). The identification of the cause of death resulted from the analysis of circumstantial data, macroscopic and microscopic autoptic findings, and immunohistochemical investigations based on the search for antibodies anti E-selectin, P-selectin, and HIF 1-α. CONCLUSION: Although not pathognomonic of asphyxiation by N2O, the latter molecules are a valid and early marker of hypoxic insult. Therefore, in concert with all other findings, it may constitute valid support for the forensic pathologist to ascertain the cause of death in case of suspected intoxication by N2O.


Assuntos
Transtornos Mentais , Óxido Nitroso , Humanos , Masculino , Idoso , Óxido Nitroso/efeitos adversos , Imuno-Histoquímica , Causas de Morte , Cognição
7.
Med Leg J ; 90(3): 152-155, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35634997

RESUMO

Binge eating is characterised by the ingestion of large quantities of food in a short time. Cases in the literature deal exclusively with gastric perforation in people with a history of anorexia nervosa, binge eating disorder or bulimia nervosa.We report the case of a young woman with no previous diagnosis of mental illness and a history of only two binge-eating episodes that occurred a few years earlier. She died suddenly during a binge-eating episode from stomach rupture resulting from a single perforation of the stomach with leakage of food material within the abdominal cavity. There was no sign of gastric necrosis or peritonitis. The deceased died quickly.Our case, which appears unique in the literature, shows that there is a risk of death even in people with no diagnosis of eating disorders and a history of only few and isolated binge-eating episodes. Physicians should carefully investigate a patient's history to assess any risks.


Assuntos
Transtorno da Compulsão Alimentar , Bulimia Nervosa , Bulimia , Transtornos da Alimentação e da Ingestão de Alimentos , Transtorno da Compulsão Alimentar/complicações , Transtorno da Compulsão Alimentar/diagnóstico , Bulimia/diagnóstico , Bulimia Nervosa/complicações , Bulimia Nervosa/diagnóstico , Causas de Morte , Feminino , Humanos
8.
Med Leg J ; 90(2): 106-108, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34786996

RESUMO

Peritoneal encapsulation is a rare congenital pathological condition. Typical of this pathology is the presence of an accessory peritoneal flap that encloses the entire mass of the small intestine. Subjects with this condition often do not show symptoms and, in most cases, finding of it is accidental. We report a case of peritoneal encapsulation, not previously identified and found during an autopsy; the deceased, positive for HIV and affected by a Kaposi's sarcoma, died following a road accident. Unlike other cases in the literature, the peritoneum encapsulated all abdominal organs and not only small intestines. Notwithstanding, there were no signs of intestinal ischaemia or intestinal obstruction.


Assuntos
Obstrução Intestinal , Peritônio , Acidentes , Automóveis , Autopsia , Humanos , Obstrução Intestinal/patologia , Peritônio/anormalidades , Peritônio/patologia , Peritônio/cirurgia
9.
Biology (Basel) ; 11(8)2022 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-36009755

RESUMO

In forensic anthropology, bone mineral density and the estimation of the dating of fractures based on the degree of progress of healing processes are important parameters of study on bone remains. With our article we aim, on the one hand, to highlight the importance that these parameters have in the reconstruction of the biological profile of the subject, as well as the time and the cause of death; on the other hand, we aim to limit their variability according to the medical substances and/or abuse assumed during life by the subject. The aim of this article is to encourage the introduction of the pharmacological history of missing persons as a new correction factor for the study of bone remains, possibly based on new scientific studies that allow us to establish with greater specificity the effect that certain pharmacological therapies produce on bone mass and the speed of remodeling.

10.
J Forensic Leg Med ; 89: 102372, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35623228

RESUMO

Fatal injuries caused by power saws are rare. In most cases, they are accidental and non-voluntary. Even rarer are suicides carried out using power saws, with no previously reported cases of suicide by electric jigsaw. We report a case of suicide by electric jigsaw of a young obese woman suffering from major depression with psychotic features. The peculiarity of our case - compared to those known in the scientific literature - concerns not only the means used for suicide, but also the results of psychological autopsy and the characteristics of the fatal injury. In fact, the autopsy showed a large wound on the anterior and lateral region of the neck with preservation of the integrity of the large vessels of the neck. The cause of death was attributed to haemorrhagic shock due to slow bleeding of small and medium calibre neck vessels, with blood aspiration.


Assuntos
Lesões do Pescoço , Choque Hemorrágico , Suicídio , Autopsia , Feminino , Patologia Legal/métodos , Humanos , Lesões do Pescoço/etiologia , Choque Hemorrágico/etiologia
11.
Front Biosci (Landmark Ed) ; 27(1): 29, 2022 01 18.
Artigo em Inglês | MEDLINE | ID: mdl-35090334

RESUMO

Penetrating cardiac injuries represent an increasingly frequent type of trauma in clinical and autopsy practice. The present study aims to review the specialist literature of the last decade (2010-2020) to assess whether the main features of these lesions have changed compared to previous years. The following characteristics were considered: sex, age, cardiac structure involved, execution or not of surgery and postoperative survival, hemodynamic stability, circumstances and mechanism of production, injury and cause of death. Furthermore, the authors propose a practical appraisal of penetrating heart injury in which death was due to a delay in rescue. In line with the data obtained from the practical case, the review showed that compared to the past, the differences concern especially the mortality rate. This paper highlights that the forensic pathologist who approaches a case of transcardiac injury must consider that the circumstances of death are not always attributable to accidental events, attacks or suicides, but may also be due to clinical malpractice or failure to rescue.


Assuntos
Traumatismos Cardíacos , Suicídio , Ferimentos Penetrantes , Traumatismos Cardíacos/cirurgia , Humanos , Estudos Retrospectivos , Ferimentos Penetrantes/cirurgia
12.
Healthcare (Basel) ; 11(1)2022 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-36611538

RESUMO

According to WHO data, suicide is a public health priority. In particular, suicide is the fourth-leading cause of death in young people. Many risk factors of suicide are described, including individual-, relationship-, community-, and societal-linked ones. The leading factor is the diagnosis of mental illness. Nevertheless, not all people who attempt suicide are psychiatric patients; these characteristics help define high-risk populations. There are currently no useful biomarkers to indicate the risk of suicide. In recent years, neurotrophic factors have increasingly become of scientific interest. This review aims to summarize the current scientific knowledge on the correlation between BDNF and GDNF and suicide, to theorize whether neurotrophins could be a reliable marker for an early diagnosis of suicidal risk. The authors conducted a systematic review following PRISMA criteria. They found eight research papers in agreement with the inclusion criteria. According to the results of these studies, there may be a connection between BDNF brain levels and complete suicide, although there are discrepancies. A lack of interest in GDNF may suggest less involvement in the suicidal dynamic. Further studies may provide helpful information to researchers.

13.
Healthcare (Basel) ; 9(5)2021 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-33946627

RESUMO

Glycophorins are an important group of red blood cell (RBC) transmembrane proteins. Monoclonal antibodies against GPA are employed in immunohistochemical staining during post-mortem examination: Through this method, it is possible to point out the RBC presence in tissues. This experimental study aims to investigate anti-GPA immunohistochemical staining in order to evaluate the vitality of the lesion from corpses in different decomposition state. Six cases were selected, analyzing autopsies' documentation performed by the Institute of Legal Medicine of Rome in 2010-2018: four samples of fractured bones and three samples of soft tissues. For the control case, the fracture region of the femur was sampled. The results of the present study confirm the preliminary results of other studies, remarking the importance of the GPA immunohistochemical staining to highlight signs of survival. Moreover, this study suggests that the use of this technique should be routinely applied in cases of corpses with advanced putrefaction phenomena, even when the radiological investigation is performed, the macroscopic investigation is inconclusive, the H&E staining is not reliable. This experimental application demonstrated that the use of monoclonal antibody anti-human GPA on bone fractures and soft tissues could be important to verify whether the lesion is vital or not.

14.
Int J Clin Exp Pathol ; 13(7): 1474-1482, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32782665

RESUMO

Light chain (AL) amyloidosis is the most common type of systemic amyloidosis, affecting around 10 people per million per year. In Europe, approximately 5000 new diagnosis per year are reported. Deposition of amyloid fibrils derived from antibody light chains are key pathogenic agents in AL amyloidosis. They can be deposited in multiple organs but cardiac involvement carries a major risk of mortality. The prognosis is poor in cases associated with multiple myeloma. The average survival is around 1 year. Up to half of all patients with cardiac amyloidosis die suddenly; 75% ofthose deaths are due to heart failure. Ventricular arrhythmia is also associated with cardiac amyloidosis and unexpected death. It is crucial to make a diagnosis and start treatment at an early stage. Recent data suggest that cardiac amyloidosis has become a treatable and curable condition with a combination of agents targeting multiple steps of the amyloid cascade. ICD implantation may not be as effective for the therapy of light chain (AL) cardiac amyloidosis as supposed earlier. In cases of unexpected and sudden death, autopsy may show unknown conditions and is valuable to assess existing risks for family members. Even after careful autopsy, a proportion of sudden deaths, ranging from 2 to 54%, remain unexplained and this broad range of values is likely due to the heterogeneity of autopsy protocols. Post mortem diagnosis of cardiac amyloidosis still represents a challenge for forensic pathologists. Detailed morphologic study of the heart and a complete histopathologic study are mandatory. Immunohistochemistry is essential for amyloid subclassification. A review of existing literature is performed by the authors and a methodological approach in post mortem diagnosis of light chain AL cardiac amyloidosis is proposed. Both macroscopic and microscopic findings are discussed.

15.
Medicine (Baltimore) ; 99(43): e22814, 2020 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-33120804

RESUMO

RATIONALE: Although the cancer incidence continues to rise, cancer mortality has declined over the past decade, in large part due to more efficacious chemotherapeutic regimens thus, the ability to use first-line chemotherapeutic agents in the treatment of patients with cancer is crucial. Antineoplastic agents can potentially cause toxic and/or hypersensitivity reactions, that can have serious consequences. Anaphylaxis is a big pitfall in oncological patients; the most important aspect in diagnosing anaphylaxis is to precisely identify the offending agent to prevent future events. Paclitaxel (Taxol) is widely used as antitumor medication in the ovarian, breast, non-small-cell lung, and other cancers. Paclitaxel hypersensitivity reactions are frequently described in the literature, but fatalities are rarely reported. Due to the low solubility of paclitaxel, the compound requires dissolution in Cremophor EL, a derivative of castor oil. PATIENT CONCERNS: A 79-year-old man was affected by high-grade non-papillary urothelial carcinoma and underwent a radical cystectomy and prostatectomy with locoregional lymphadenectomy. DIAGNOSIS: Eight months later, relapse was detected, and penis amputation and left nephrostomy were performed. Multiple metastases to lymph nodes were detected. INTERVENTIONS: Palliative chemotherapy was started with Paclitaxel (110 mg) infused at a rate of 50 mL/h. Despite premedication with cetirizine dihydrochloride, dexamethasone, ondansetron, ranitidine, 20 min after Paclitaxel infusion starts, the patient developed general distress, followed by cardiac arrest. OUTCOMES: The mechanism of fatal paclitaxel-associated hypersensitivity reaction is uncertain and its solvent vehicle Cremophor EL may be involved. Several mechanisms have been postulated: an IgE-mediated mast cell degranulation induced by paclitaxel or Cremophor EL, a non-IgE-mediated idiosyncratic mast cell degranulation by paclitaxel or by Cremophor EL, and complement activation. Severe hypersensitivity reactions with fatal outcome are considered rare. LESSONS: The unpredictability and often dramatic reactions of Taxol cause substantial anxiety for doctors and caretakers. They also represent a significant logistic and financial burden on hospitals. Despite premedication, skin testing, and desensitization protocols administration of taxane-based, chemotherapy cannot be considered safe and severe to fatal hypersensitivity reactions cannot be prevented.


Assuntos
Hipersensibilidade a Drogas/etiologia , Glicerol/análogos & derivados , Paclitaxel/efeitos adversos , Neoplasias Urológicas/tratamento farmacológico , Idoso , Hipersensibilidade a Drogas/fisiopatologia , Glicerol/efeitos adversos , Glicerol/uso terapêutico , Humanos , Masculino , Mastócitos/metabolismo , Paclitaxel/uso terapêutico , Triptases/sangue , Neoplasias Urológicas/cirurgia
16.
J Forensic Sci ; 65(1): 103-111, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31404476

RESUMO

This study analyzes postmortem records from 260 homicide cases autopsied by the Department of Forensic Medicine in Rome from 2000 to 2014. The victims were mainly males (74%) and young (61% aged from 21 to 50 years). Although the victims were mostly Italians, the number of foreign victims (33%) has increased since 1990, primarily due to immigration. The offenders frequently used firearms (39%), particularly in multiple murders. An increase in blunt (20%) and sharp force (32%) weapons was also seen. The primary crime scene was residential (42%), and the head was the most frequently injured body region. Male victims occurred frequently in the context of organized crime (7.6%). In family or intimate-sexual relationships, women were the majority of victims (8%). Forensic pathologists play an important role during investigation. They should consider all the information available to them, including autopsy information, crime scene information, and crime investigation data.


Assuntos
Vítimas de Crime/estatística & dados numéricos , Homicídio/estatística & dados numéricos , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Criança , Emigrantes e Imigrantes/estatística & dados numéricos , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Motivação , Distribuição por Sexo , Suicídio/estatística & dados numéricos , Armas/estatística & dados numéricos , Ferimentos e Lesões/mortalidade , Adulto Jovem
17.
Front Pediatr ; 8: 229, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32537440

RESUMO

Pediatrics, among all the branches of medicine, is a sector not particularly affected by a high number of claims. Nevertheless, the economic value of the compensation is significantly high, for example, in cases of children who suffered multiple disabilities following perinatal lesions with a long life expectancy. In Italy, most of the claims for compensation concern surgical pathologies and infections. Among these latter, the dominant role is taken by respiratory tract infections. In this context, the purpose of this manuscript is to present a case series of infant deaths in different emergency-related facilities (ambulances, emergency rooms) denounced by relatives. Following these complaints, the autopsy was performed, and subsequent histological examinations revealed the presence of typical and pathognomonic histological findings of acute viral bronchiolitis, whose morphological appearance is poorly reported in the literature. The analysis of these cases made it possible to highlight the following conclusions: the main problems in diagnosing sudden death causes, especially in childhood, are the rapidity of death and the scarce correlation between the preexistent diseases and of the cause of death itself. For all these reasons, the autopsy, either clinical or medicolegal, is mandatory in cases of sudden unexpected infant death to manage claim requests because only the histological examinations performed on samples collected during the autopsy can reveal the real cause of death.

18.
Diagnostics (Basel) ; 10(8)2020 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-32784826

RESUMO

(1) Background: The current outbreak of COVID-19 infection is an ongoing challenge and a major threat to public health that requires surveillance, prompt diagnosis, as well as research efforts to understand the viral pathogenesis. Despite this, to date, very few studies have been performed concerning autoptic specimens. Therefore, this study aimed: (i) to reiterate the importance of the autoptic examination, the only method able to precisely define the cause of death; (ii) to provide a complete post-mortem histological and immunohistochemical investigation pattern capable of diagnosing death from COVID-19 infection. (2) Methods: In this paper, the lung examination of two subjects who died from COVID-19 are discussed, comparing the obtained data with those of the control, a newborn who died from pneumonia in the same pandemic period. (3) Results: The results of the present study suggest that COVID-19 infection can cause different forms of acute respiratory distress syndrome (ARDS), due to diffuse alveolar damage and diffuse endothelial damage. Nevertheless, different patterns of cellular and cytokine expression are associated with anti-COVID-19 antibody positivity, compared to the control case. Moreover, in both case studies, it is interesting to note that COVID-19, ACE2 and FVIII positivity was detected in the same fields. (4) Conclusions: COVID-19 infection has been initially classified as exclusively interstitial pneumonia with varying degrees of severity. Subsequently, vascular biomarkers showed that it can also be considered a vascular disease. The data on Factor VIII discussed in this paper, although preliminary and limited in number, seem to suggest that the thrombogenicity of Sars-CoV2 infection might be linked to widespread endothelial damage. In this way, it would be very important to investigate the pro-coagulative substrate both in all subjects who died and in COVID-19 survivors. This is because it may be hypothesized that the different patterns with which the pathology is expressed could depend on different individual susceptibility to infection or a different personal genetic-clinical background. In light of these findings, it would be important to perform more post-mortem investigations in order to clarify all aspects of the vascular hypothesis in the COVID-19 infection.

19.
J Clin Med ; 9(7)2020 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-32605192

RESUMO

The severe acute respiratory syndrome (SARS)-CoV-2 was identified for the first time in China, in December 2019. Confirmed cases of COVID-19 have been reported around the world; indeed, this infection has been declared a pandemic. Consequently, the scientific community is working hard to gain useful information about the history of this virus, its transmission, diagnosis, clinical features, radiological findings, research and development of candidate therapeutics as well as vaccines. This review aims to analyze the diagnostic techniques used to ascertain the COVID-19 infection, critically reviewing positive points and criticism for forensic implications, obviously including autopsy. Finally, this review proposes a practical workflow to be applied in the management of corpses during this outbreak of the COVID-19 infection, which could be useful in cases of future infectious disease emergencies. Analyzing the diagnostic methods, to date, virus nucleic acid RT-PCR represents the standard method used to ascertain the COVID-19 infection in living subjects and corpses, even if this technique has several criticisms: mainly, the staff should be highly specialized, working in high-throughput settings, able to handle high workloads and aware of health risks and the importance of the results. Thus, IgG/IgM serological tests have been developed, overcoming RT-qPCR duration, costs, and management, not requiring highly trained personnel. Nevertheless, serological tests present problems; the WHO recommends the use of these new point-of-care immunodiagnostic tests only in research settings. Furthermore, nothing has yet been published regarding the possibility of applying these methods during post-mortem investigations. In light of this scenario, in this review, we suggest a flow chart for the pathologist called on to ascertain the cause of death of a subject with historical and clinical findings of COVID-19 status or without any anamnestic, diagnostic, or exposure information. Indeed, the literature data confirmed the analytical vulnerabilities of the kits used for laboratory diagnosis of COVID-19, particularly during postmortem examinations. For these reasons, autopsy remains the gold standard method to ascertain the exact cause of death (from or with COVID-19 infection, or other causes), to consequently provide real data for statistical evaluations and to take necessary measures to contain the risks of the infection. Moreover, performing autopsies could provide information on the pathogenesis of the COVID-19 infection with obvious therapeutic implications.

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