Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 9 de 9
Filter
Add more filters










Database
Language
Publication year range
1.
J Anal Toxicol ; 42(1): e6-e11, 2018 Jan 01.
Article in English | MEDLINE | ID: mdl-29036502

ABSTRACT

Fentanyl analogs pose a unique challenge for forensic pathologists and toxicologists. The extreme potency of these analogs results in minute blood, urine and vitreous concentrations that are technically difficult to identify. This in addition to their absence from standard drug screening may potentiate a setting of apparent drug overdose without an immediately identifiable source. The following case series illustrates three such encounters with acrylfentanyl, an analog whose presence has not yet been reported in the scientific literature in the United States. In case 1, a 23-year-old male with a history of heroin abuse was found unresponsive in a field several feet away from his parked vehicle. Drugs and paraphernalia recovered from the vehicle tested positive for methamphetamine and acrylfentanyl. Directed toxicology was requested, revealing acrylfentanyl concentrations of 0.3 ng/mL. In case 2, a 43-year-old male with a history of heroin abuse was found unresponsive in his home after allegedly injecting what he thought to be heroin. Directed toxicology revealed an acrylfentanyl concentration of 0.95 ng/mL in peripheral blood. In case 3, a 26-year-old male with a history of heroin abuse use found unresponsive on the bathroom floor of a grocery store. Drug paraphernalia and a plastic baggy with residue were present. Directed analysis of peripheral blood for fentanyl analogs revealed acrylfentanyl and furanylfentanyl at concentrations of 0.32 and 0.95 ng/mL, respectively. In all three cases, the initial comprehensive blood toxicology did not reveal the presence of acrylfentanyl, highlighting the need for directed testing when scene findings and history suggest a possible substance outside the scope of traditional screening.


Subject(s)
Analgesics, Opioid/poisoning , Fentanyl/analogs & derivatives , Fentanyl/poisoning , Opioid-Related Disorders/etiology , Adult , Analgesics, Opioid/blood , Autopsy , Cause of Death , Chromatography, Liquid , Drug Overdose , Fatal Outcome , Fentanyl/blood , Gas Chromatography-Mass Spectrometry , Humans , Male , Opioid-Related Disorders/blood , Opioid-Related Disorders/diagnosis , Spectrometry, Mass, Electrospray Ionization , Substance Abuse Detection/methods , Tandem Mass Spectrometry , United States , Young Adult
2.
Transfusion ; 57(10): 2348-2354, 2017 10.
Article in English | MEDLINE | ID: mdl-28782120

ABSTRACT

BACKGROUND: Transfusion-transmitted babesiosis (TTB) has been rapidly increasing in incidence since the beginning of the 21st century. Asymptomatic individuals with Babesia infection are able to donate blood in the United States because of the lack of specific blood donation testing. Blood products collected in Babesia-endemic areas are distributed nationally; thus, clinicians in nonendemic states may fail to include babesiosis in the differential diagnosis of a patient who had a recent transfusion history and a fever of unknown origin. STUDY DESIGN AND METHODS: We report the details of two cases of clinical transfusion-transmitted babesiosis and one asymptomatic infection identified in red blood cell recipients in two nonendemic states (South Carolina and Maryland), which, when combined with three recent additional cases in nonendemic states, totals six recipient infections in three nonendemic states. RESULTS: Delayed diagnosis of transfusion-transmitted babesiosis places patients at risk for increased morbidity and mortality and may result in clinical mismanagement or unnecessary treatments. A peripheral blood smear should be reviewed in any patient with a recent transfusion and a fever of unknown origin. Prompt communication of the diagnosis among physicians is key to ensuring that patients with transfusion-transmitted babesiosis are treated expeditiously, and a transfusion service investigation is necessary to identify additional recipients from the same donor. CONCLUSION: TTB is appearing in traditionally nonendemic states because of blood product distribution patterns. Clinicians should include TTB on the differential diagnosis in any patient presenting who had a recent transfusion history and a fever of unknown origin, regardless of where the transfusion took place.


Subject(s)
Babesiosis/transmission , Transfusion Reaction , Adult , Anti-Bacterial Agents/therapeutic use , Babesiosis/diagnosis , Blood Donors , Diagnosis, Differential , Erythrocyte Transfusion , Fever/etiology , Hematopoietic Stem Cell Transplantation/adverse effects , Humans , Infant , Male , United States
3.
Forensic Sci Int ; 260: 31-39, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26795398

ABSTRACT

Adverse effects associated with synthetic cannabinoid use include agitation, psychosis, seizures and cardiovascular effects, all which may result in a lethal outcome. We report the collection of data from 25 medical examiner and coroner cases where the presence of synthetic cannabinoids was analytically determined. Participating offices provided case history, investigative and relevant autopsy findings and toxicology results along with the cause and manner of death determination. This information, with the agency and cause and manner of death determinations blinded, was sent to participants. Participants offered their opinions regarding the likely contribution of the toxicology findings to cause and manner of death. The results show that some deaths are being attributed to synthetic cannabinoids, with the highest risk areas being behavioral toxicity resulting in excited delirium, trauma or accidents and as contributing factors in subjects with pre-existing cardiopulmonary disease. While insufficient information exists to correlate blood synthetic cannabinoid concentrations to effect, in the absence of other reasonable causes, the drugs should be considered as a cause or contributory cause of death based on history and circumstances with supporting toxicological data.


Subject(s)
Cannabinoids/adverse effects , Designer Drugs/adverse effects , Substance-Related Disorders/complications , Substance-Related Disorders/mortality , Adolescent , Adult , Cause of Death , Coroners and Medical Examiners , Delirium/chemically induced , Female , Forensic Pathology , Forensic Toxicology , Heart Diseases/mortality , Humans , Male , Middle Aged , United States/epidemiology , Wounds and Injuries/mortality , Young Adult
4.
Transfusion ; 56(2): 349-53, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26446054

ABSTRACT

BACKGROUND: Mutations of nonmuscle myosin heavy chain 9 (MYH9) gene are an autosomal dominant cause of inherited thrombocytopenia in children. MYH9 spectrum disorders include May-Hegglin anomaly and Sebastian, Fechtner, and Epstein syndromes. Patients with these disorders often present with macroplatelets and thrombocytopenia and have a mild bleeding tendency; extrahematologic manifestations (nephropathy, deafness, and cataracts) correlate with specific mutations. No definitive guidelines exist for preoperative prophylactic platelet (PLT) transfusion in these patients. STUDY DESIGN AND METHODS: This was a case study and literature review. RESULTS: A 6-year-old male presented with appendicitis. Review of records revealed that he and his siblings had thrombocytopenia; polymerase chain reaction amplification with DNA sequence analysis showed a variation in the MYH9 gene previously reported as a known cause of MYH9-related disorders. Involvement of other organ systems was not found on initial work-up. The patient's PLT count on admission was 20 × 10(9) /L. The degree of thrombocytopenia prompted transfusion of apheresis PLTs and he had good response (73 × 10(9) /L). After infusion he developed hives, rash, itching, and nausea, which resolved after administration of epinephrine and hydrocortisone. Transfusion reaction work-up was negative and symptoms were interpreted as an allergic reaction. The appendectomy was uneventful. CONCLUSION: This patient's PLT count was within guidelines to warrant transfusion; however, some patients with MYH9 mutations have counts above the transfusion threshold. To the authors' knowledge, there are no set guidelines for preoperative prophylaxis in a patient with an MYH9 deficiency. The management of the bleeding diathesis in these patients, especially in the setting of invasive procedures, is uncertain.


Subject(s)
Appendicitis/surgery , Hearing Loss, Sensorineural/surgery , Platelet Transfusion , Preoperative Care , Thrombocytopenia/congenital , Acute Disease , Appendicitis/blood , Child , Hearing Loss, Sensorineural/blood , Hearing Loss, Sensorineural/genetics , Humans , Male , Molecular Motor Proteins/genetics , Molecular Motor Proteins/metabolism , Myosin Heavy Chains/genetics , Myosin Heavy Chains/metabolism , Thrombocytopenia/blood , Thrombocytopenia/genetics , Thrombocytopenia/surgery
5.
J Forensic Sci ; 60(2): 346-50, 2015 Mar.
Article in English | MEDLINE | ID: mdl-25399659

ABSTRACT

Indwelling intravascular catheters provide convenient access to healthcare personnel and also recreational intravenous drug users who inject suspensions of oral medications. A nine-case series of autopsies of clinically stable decedents with indwelling catheters and sudden death is herein presented. Pulmonary histologic findings were consistent with intravenous administration of oral medications in all cases. In eight, the mechanism of death was directly attributed to occlusive vascular embolization of foreign material, with or without contribution of acute drug toxicity. In one, the mechanism of death was solely attributed to acute drug toxicity. Acute, massive embolization of foreign material may explain sudden death by vascular obstruction, whereas chronic repeated injections lead to obliteration of the pulmonary vasculature, increased pulmonary vascular resistance, and cardiac failure. Therefore, a complete autopsy with histologic examination of the lungs and toxicology testing is recommended in patients with indwelling catheters to determine the cause and mechanism of death.


Subject(s)
Catheters, Indwelling/adverse effects , Central Venous Catheters/adverse effects , Granuloma, Foreign-Body/pathology , Pulmonary Embolism/pathology , Adult , Female , Forensic Pathology , Humans , Male , Retrospective Studies , Young Adult
6.
J Forensic Sci ; 59(6): 1672-4, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25069757

ABSTRACT

Ectodermal dysplasia comprises a group of disorders affecting ectodermal tissues. Severity depends on the genetic aberration; hyperpyrexia secondary to absence of sweat glands is a common complication. Treatment is supportive. This case report describes a 1-month, 27-day-old male infant with a diagnosis of X-linked recessive anhidrotic ectodermal dysplasia. On the day of his death, his mother swaddled him in a blanket and placed him on the couch at 5:30 am. When she picked him up at 8:00 am, he was unresponsive. At the emergency department, his rectal temperature was 40°C. Postmortem blood culture was positive for group B streptococcus, a possible etiology for fever. It is vital to teach parents that close monitoring of children with ectodermal dysplasia is necessary, as an increase in body temperature can become life threatening.


Subject(s)
Ectodermal Dysplasia 1, Anhidrotic/complications , Fever/etiology , Fatal Outcome , Humans , Infant, Newborn , Male , Streptococcal Infections/diagnosis , Streptococcus agalactiae/isolation & purification
7.
J Forensic Sci ; 58(4): 1071-4, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23458363

ABSTRACT

A retrospective series of five cases of nontraumatic gross adrenal hemorrhage were identified in 800 consecutive forensic autopsies. All patients were males, of different ethnicities and with ages ranging from 2 to 48 years. All patients had a clinical history and autopsy findings suggestive of sepsis. Pre- or postmortem microbiological cultures were variably positive for Pseudomonas aeruginosa, Streptococcus pneumoniae, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus. The fifth case was positive for yeast and a coagulase negative staphylococcus; contamination of this culture medium cannot be excluded. No cases had a culture positive for Neisseria meningitidis. We find that the reviewed patients with grossly or microscopically identifiable adrenal hemorrhage were otherwise healthy individuals who died suddenly as a consequence of bacterial infection. In each case, signs and symptoms compatible with premortem adrenal insufficiency were reported; in no instance was the adrenal hemorrhage clinically identified.


Subject(s)
Adrenal Gland Diseases/microbiology , Hemorrhage/microbiology , Waterhouse-Friderichsen Syndrome/diagnosis , Adrenal Glands/pathology , Adult , Child, Preschool , Diagnostic Errors , Forensic Pathology , Humans , Male , Middle Aged , Pseudomonas Infections/complications , Pseudomonas Infections/diagnosis , Pseudomonas aeruginosa/isolation & purification , Retrospective Studies , Sepsis/microbiology , Streptococcal Infections/complications , Streptococcal Infections/diagnosis
8.
P R Health Sci J ; 28(3): 276-80, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19715122

ABSTRACT

Mycobacterium mucogenicum is rarely associated to human infections. However, in the last year, a few reports of sepsis and fatal cases of central nervous systems have been documented. Here we report a fatal case of granulomatous meningoencephalitis of three weeks of evolution where DNA from a M. mucogenicum-like microorganism was identified postmortem in samples of brain tissue.


Subject(s)
Meningoencephalitis/microbiology , Mycobacterium Infections , Adult , Fatal Outcome , Granuloma/microbiology , Humans , Male
9.
Diagn Microbiol Infect Dis ; 57(4): 429-33, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17141457

ABSTRACT

The following case illustrates an ileal perforation and reactive hemophagocytic syndrome (RHS) resulting from disseminated histoplasmosis in a patient with Human Immunodeficiency Virus (HIV) from Puerto Rico. Although the diagnosis was established by histopathologic findings and a positive bone marrow culture, Histoplasma capsulatum-specific real-time Polymerase Chain Reaction (PCR) allowed to confirm the diagnosis from formalin-fixed, paraffin-embedded tissue. Interestingly, the Histoplasma antigens in both serum and urine samples were falsely negative. Amphotericin B lipid complex (Abelcet), followed by oral itraconazole, led to a successful response and resolution of symptoms. A short review of the clinical signs and symptoms, diagnostic tests, and therapeutic options for disseminated histoplasmosis is done, with emphasis on the role of Histoplasma-specific real-time PCR as a molecular diagnostic tool and the efficacy of treatment with one of the lipid formulations of amphotericin B.


Subject(s)
Amphotericin B/therapeutic use , Antifungal Agents/therapeutic use , Histoplasma/isolation & purification , Histoplasmosis , Intestinal Perforation/complications , Lymphohistiocytosis, Hemophagocytic/complications , Phosphatidylcholines/therapeutic use , Phosphatidylglycerols/therapeutic use , AIDS-Related Opportunistic Infections/complications , AIDS-Related Opportunistic Infections/diagnosis , AIDS-Related Opportunistic Infections/drug therapy , AIDS-Related Opportunistic Infections/microbiology , Adult , Amphotericin B/administration & dosage , Antifungal Agents/administration & dosage , Drug Combinations , HIV Infections/complications , HIV Infections/virology , HIV-1/isolation & purification , Histoplasma/genetics , Histoplasmosis/complications , Histoplasmosis/diagnosis , Histoplasmosis/drug therapy , Histoplasmosis/microbiology , Humans , Ileum/pathology , Male , Phosphatidylcholines/administration & dosage , Phosphatidylglycerols/administration & dosage , Puerto Rico , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL
...