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1.
A fatal case of Waterhouse-Friderichsen syndrome resulting from infection in a previously healthy 74-year-old woman is reported. The patient died suddenly within 14 hours after presentation. The diagnosis of Waterhouse-Friderichsen syndrome as the cause of death was established post mortem based on autopsy findings, microscopic examination, measurement of serum procalcitonin concentration (113 ng/ml), and outcome of postmortem bacteriologic cultures that grew in heart and spleen blood samples. Since the introduction of as a new group in the family in 1983, more recent case studies have established its clinical significance and pathogenic potential to cause severe, life-threatening bacteremia and sepsis. is a rare pathogen that should be added to the list of unusual bacteria causing Waterhouse-Friderichsen syndrome.  相似文献   

2.
Food  Drug Administration  HHS 《Federal register》2007,72(164):48765-48801
The Food and Drug Administration (FDA) is requiring establishments collecting Whole Blood or blood components, including Source Plasma and Source Leukocytes, to establish, maintain, and follow an appropriate system for identifying blood and blood components previously donated by a donor who tests reactive for evidence of hepatitis C virus (HCV) infection on a subsequent donation identified either by current testing or after a review of historical testing records, or when the collecting establishment is made aware of other reliable test results or information indicating evidence of HCV infection. Such collections may be at increased risk of transmitting HCV infection. FDA is requiring collecting establishments to quarantine prior in-date blood and blood components from such a donor, to notify consignees of prior in-date blood and blood components from such a donor for quarantine purposes, and to perform further testing on the donor. FDA is also requiring consignees to notify transfusion recipients of blood and blood components from such a donor, as appropriate. In addition, FDA is revising the human immunodeficiency virus (HIV) "lookback" requirements for greater consistency with the HCV "lookback" requirements, and extending the record retention period to 10 years. FDA is taking this action to help ensure the continued safety of the blood supply and to help ensure that information is provided to recipients of blood and blood components that may have been at increased risk of transmitting HIV or HCV infection. Elsewhere in this issue of the Federal Register, FDA is announcing the availability of a guidance document entitled "Guidance for Industry: 'Lookback' for Hepatitis C Virus (HCV): Product Quarantine, Consignee Notification, Further Testing, Product Disposition, and Notification of Transfusion Recipients Based on Donor Test Results Indicating Infection with HCV' (the "lookback" guidance). We are also issuing this final rule in conjunction with a companion interim final rule published by the Centers for Medicare and Medicaid Services (CMS) elsewhere in this issue of the Federal Register.  相似文献   

3.
Artificial insemination by donor is becoming an increasingly popular means to achieving parenthood. While the majority of couples use artificial insemination to overcome fertility problems, many recipients use artificial insemination to avoid passing a genetic disease to their children. However, case studies reveal the inherent dangers of artificial insemination, namely the lack of proper screening methods to avoid passing genetic diseases to children born by artificial insemination. State-by-state regulation, federal guidelines, and private adjudication have all proven to be inadequate methods of regulating the artificial insemination industry. Ginsberg proposes federal regulation as the only means of achieving a safe artificial insemination industry. The proposed federal regulation would include better genetic screening, a more efficient national sperm donor system, and limited disclosure to recipients of artificial insemination and their children. These measures would help to ensure that couples using artificial insemination get what they expect--healthy sperm, a safe artificial insemination process, and ultimately, a healthy child.  相似文献   

4.
Scientists, policymakers, and medical professionals alike have become increasingly worried about the rise of antibiotic resistance, and the growing number of infections due to bacteria like Clostridium difficile, which cause a significant number of deaths and are imposing increasing costs on our health care system. However, in the last few years, fecal microbiota transplantation (FMT), the transplantation of stool from a healthy donor into the bowel of a patient, has emerged as a startlingly effective means to treat recurrent C. difficile infections. At present, the FDA is proposing to regulate FMT as a biologic drug. However, this proposed classification is both underregulatory and overregulatory. The FDA''s primary goal is to ensure that patients have access to safe, effective treatments—and as such they should regulate some aspects of FMT more stringently than they propose to, and others less so. This essay will examine the nature of the regulatory challenges the FDA will face in deciding to regulate FMT as a biologic drug, and will then evaluate available policy alternatives for the FDA to pursue, ultimately concluding that the FDA ought to consider adopting a hybrid regulatory model as it has done in the case of cord blood.  相似文献   

5.
A case of fatal myocarditis in a 24-year-old otherwise healthy man is described. It was possible to cultivate Salmonella typhimurium from the alimentary tract, the blood, the liver and skeletal muscles. The possibility of a solitary myocarditis with fatal outcome due to Salmonella typhimurium infection is discussed. Such a case seems not to have been mentioned previously in the literature.The problems concerning the statistical registration of such a death are briefly discussed.  相似文献   

6.
Abstract: Sudden unexplained deaths, especially those unwitnessed can lead to forensic issues and would necessitate the need for a meticulous and complete postmortem examination including ancillary investigations to discover the cause of death. We herein report a case of sudden unexplained death caused by malaria in an apparently healthy individual. This fatal case is presented to remind the forensic pathologist of the possibility of malaria as a cause of sudden unexplained death in malaria‐endemic regions. In the present case, histopathological examination demonstrated the presence of parasitized red blood cells with malarial pigment in the blood capillaries in the brain, myocardium, pericardium, lungs, kidneys, liver, and the spleen. Cerebral malaria with acute renal insufficiency or pulmonary edema with an acute respiratory distress syndrome might have been the cause of death.  相似文献   

7.
A clear positive case for anabolic steroids doping was confounded by alleged urine tampering during doping control procedures. Review of the chain of custody showed no flaws, but nevertheless the athlete was adamant that the urine sample should be analyzed for DNA in order to support her contention that she was not the donor of the sample. The results obtained showed that the urine sample that scored positive for steroids contained nuclear DNA that could not be matched to the DNA obtained from the athlete's blood. On the other hand, the same urine sample contained mitochondrial DNA whose nucleotide sequences spanning the hyper variable regions HV1 and HV2 proved to be identical to those determined in mitochondrial DNA amplified from the athlete's blood. The occurrence of an extraneous genotype is compatible with exogenous nuclear DNA admixture to the athlete's urine. Alternatively, taking in consideration the mitochondrial DNA, we could not exclude that a sibling or a maternal relative of the athlete could have acted as a donor of the urine utilized for doping control and DNA analysis. Both situations point to possible tampering of the urine by the athlete. Adjudication at CAS maintained previous national and international federation decision that there was no proof of a chain of custody flaw to justify the athlete's allegation of urine substitution after collection.  相似文献   

8.
This final rule finalizes the hospital conditions of participation requirements for hospitals that transfuse blood and blood components. It requires hospitals to: Prepare and follow written procedures for appropriate action when it is determined that blood and blood components the hospitals received and transfused are at increased risk for transmitting hepatitis C virus (HCV); quarantine prior collections from a donor who is at increased risk for transmitting HCV infection; notify transfusion recipients, as appropriate, of the need for HCV testing and counseling; and extend the records retention period for transfusion-related data to 10 years. The intent is to aid in the prevention of HCV infection and to create opportunities for disease prevention that, in most cases, can occur many years after recipient exposure to a donor.  相似文献   

9.
《Federal register》1996,61(175):47413-47423
The Food and Drug Administration (FDA) is amending the biologics regulations to require that blood establishments (including plasma establishments) prepare and follow written procedures for appropriate action when it is determined that Whole Blood, blood components (including recovered plasma), Source Plasma and Source Leukocytes at increased risk for transmitting human immunodeficiency virus (HIV) infection have been collected. This final rule requires that when a donor who previously donated blood is tested on a later donation in accordance with the regulations and tests repeatedly reactive for antibody to HIV, the blood establishment shall perform more specific testing using a licensed test, if available, and notify consignees who received Whole Blood, blood components, Source Plasma or Source Leukocytes from prior collections so that appropriate action is taken. Blood establishments and consignees are required to quarantine previously collected Whole Blood, blood components, Source Plasma and Source Leukocytes from such donors, and if appropriate, notify transfusion recipients. The Health Care Financing Administration (HCFA) is also issuing a final rule, published elsewhere in this Federal Register, which requires all transfusion services subject to HCFA's conditions of Medicare participation for hospitals to notify transfusion recipients who have received Whole Blood or blood components from a donor whose subsequent donation test results are positive for antibody to HIV (hereinafter referred to as HCFA's final rule). FDA is requiring transfusion services that do not participate in Medicare and are, therefore, not subject to HCFA's final rule, to take steps to notify transfusion recipients. FDA is taking this action to help ensure the continued safety of the blood supply, and to help ensure that information is provided to consignees of Whole Blood, blood components, Source Plasma and Source Leukocytes and to recipients of Whole Blood and blood components from a donor whose subsequent donation tests positive for antibody to HIV.  相似文献   

10.
We investigated Raman scattering from human blood as a function of parameters that are relevant for forensic field analysis, such as substrate, sample dilution, individual from which the sample originates, and age of the sample. Peaks characteristic of blood components and in particular the hemoglobin peaks were routinely detected when blood was deposited on substrates that are not strongly luminescent, such as plastic, metal utensils and dry wall. Raman scattering from blood proved quite sensitive and blood samples with a dilution up to 1:250 could be measured for an excitation power of ~2 mW measured at the sample plane. The sensitivity of Raman scattering to diluted blood allowed measurement using blood reconstituted from fabric substrates, thereby alleviating issues related to luminescence and scattering from the substrate. The dependence of Raman scattering on sample age and individual was also investigated. We found that the relative intensities of scattering peaks depended on sample age and history. For example, the relative intensity of oxyhemoglobin peaks decreases after blood has dried. Fresh blood drawn directly from a donor without intermediate storage exhibits also scattering peaks at 1155 and 1511 cm(-1) which disappear after drying. The origin of these peaks is under investigation. We noticed, however, that they were not found in blood that had been stored for longer than one week in EDTA containers before analysis, thus requiring the use of fresh blood for future studies and validation purposes. The relative intensity of scattering peaks was also found to be somewhat dependent on the donor and, for a same donor, on the day on which blood was drawn.  相似文献   

11.
The legality of pre-implantation genetic diagnosis (PGD) has recently been confirmed by the Court of Appeal in the Hashmi case, based on a purposive construction of the statute. The court went on to declare tissue typing lawful and strained the wording of the statute in order to do so. The Hashmi case confirms that it would be lawful for the HFEA to license tissue typing in the absence of PGD. However, the HFEA only licenses tissue typing where PGD is also indicated, on the basis of a blanket application of the welfare of the child test set out in S 13 (5). This policy can be criticised. Firstly, a blanket approach to S 13 (5) is not appropriate. Secondly, the HFEA is applying the test too strictly when compared to the 'best interests' test which would govern the situation were an existing child to be a potential donor. Thirdly, by licensing tissue typing in the Hashmi case, where it was the primary reason for testing, the HFEA has undermined the argument that it can be justified only in cases where it is ancillary to PGD. These arguments, coupled with human rights arguments, based on Art 8 and Art 12, could be used to challenge the legitimacy of the HFEA's policy. The restriction on tissue typing to cases where PGD is also indicated is not ethically justified. It offers the same direct benefit to the embryo as PGD, namely selection for implantation. PGD does not cure the relevant condition so offers no additional benefit in a causative sense. Moreover, the Kantian injunction against treating people solely as means is not breached where the child will be wanted for its own sake, as well as for its potential as a cord blood donor.  相似文献   

12.
《Federal register》1996,61(175):47423-47434
This final rule requires hospitals participating in the Medicare and Medicaid programs to take appropriate action when the hospitals learn that they have received whole blood, blood components (including recovered plasma), source plasma, and source leukocytes (hereafter referred to as blood or blood products) that are at increased risk of transmitting Human Immunodeficiency Virus (HIV) infection. If the hospital learns that it has received blood or blood products collected from a donor recently exposed to HIV, before the donor has a sufficient level of antibody to be detected by the screening test for antibody to HIV, the hospital must quarantine any blood or blood products remaining in inventory pending confirmation testing. If the presence of HIV is confirmed by more specific testing, the hospital must notify patients who received the blood or blood product. This final rule is intended to ensure that proper health and safety steps are taken to minimize further spread of HIV infection. A final rule published elsewhere in this Federal Register by the Food and Drug Administration applies the same requirements to entities furnishing transfusion services that do not participate in the Medicare and Medicaid programs and clarifies the responsibilities of blood establishments to identify and notify the transfusion service that received affected blood and blood products.  相似文献   

13.
Sudden unexpected death in childhood is rare. The commonest causes of such deaths are a result of fulminating infections of the respiratory or nervous systems. Other causes include unsuspected congenital abnormalities of the heart, acute metabolic disorders, and rarities such as internal hemorrhages and pulmonary thrombosis. Recognition of children with congenital asplenia who are otherwise normal but have an increased susceptibility to overwhelming sepsis is extremely difficult. We reviewed 1763 autopsy files from our institution over 5 years (1990-1995), of which 293 were classified as pediatric cases. The vast majority of the cases were stillbirths and deaths within the first year of life as a result of complex congenital anomalies. Four cases of asplenia were identified in our entire series, 3 of which were of the congenital syndromal variety and 1 of which was a case of isolated sporadic congenital asplenia. All 4 cases of asplenia were analyzed in detail with respect to autopsy findings and cause of death. Severe complex cardiac malformations were present in the congenital syndromal asplenia patients; these other malformations contributed significantly to their death. In this report, we discuss in detail the autopsy findings in a previously healthy 4-year-old girl who presented with a brief 8-hour history of being unwell and died within 4 hours of admission into the hospital. She had sporadic, isolated congenital asplenia complicated by high-grade type 6B pneumococcemia and acute bilateral adrenal hemorrhage (Waterhouse-Friderichsen syndrome). Previously healthy children who clinically deteriorate very rapidly should have a blood smear done as part of their clinical workup. The detection of Howell-Jolly bodies on a peripheral blood smear can be an indicator of asplenia, and this diagnosis can be confirmed by medical imaging of the abdomen. Such steps may aid in the aggressive management of isolated congenital asplenia and thereby avert untimely death.  相似文献   

14.
This interim final rule with comment period requires hospitals that transfuse blood and blood components to: Prepare and follow written procedures for appropriate action when it is determined that blood and blood components the hospitals received and transfused are at increased risk for transmitting hepatitis C virus (HCV); quarantine prior collections from a donor who is at increased risk for transmitting HCV infection; notify transfusion recipients, as appropriate, of the need for HCV testing and counseling; and extend the records retention period for transfusion-related data to 10 years. These changes are based on recommendations by the Secretary's Advisory Committee on Blood Safety and Availability and are being published in conjunction with the Food and Drug Administration's (FDA) Final Rule, "Current Good Manufacturing Practice for Blood and Blood Components; Notification of Consignees and Transfusion Recipients Receiving Blood and Blood Components at Increased Risk of Transmitting HCV Infection" ("lookback") found elsewhere in this issue of the Federal Register. The intent is to aid in the prevention of HCV infection and to create opportunities for disease prevention that, in most cases, can occur many years after recipient exposure to a donor.  相似文献   

15.
Vaginally inserted plastic tampon applicators were obtained from 42 female volunteers. The applicators were examined for the presence of ABH blood group substances, phosphoglucomutase (PGM), amylase, acid phosphatase, P30, and intact spermatozoa. Each applicator was accompanied by a control blood sample, a saliva specimen, a brief sexual and menstrual history, and method of birth control of the donor. Eight of the male sexual partners of the donors submitted blood and saliva samples. One male sexual partner submitted only a saliva sample. ABH blood group substances corresponding to the donor were recovered from 36 of the 42 applicators. The remaining 6 applicators revealed a combination of the donor's and sexual partner's ABH substances. The female's PGM type was recovered from 34 of the applicators. The remaining 8 applicators failed to show PGM activity. Of the applicators, 15 indicated evidence of prior sexual intercourse by the detection of ABH substances not consistent with the applicator donor (6 samples), high levels of acid phosphatase (11 samples), or recovery of spermatozoa (8 samples) or some combination of these. All applicator samples failed to show the presence of either P30 activity or PGM factors foreign to the female.  相似文献   

16.
A previously healthy 33-year-old Australian male died suddenly and unexpectedly 8 h after a typhoid-cholera vaccination. Such facalities are extreme rarities and the present case is the first in which postmortem measurement of serum immunoglobulins has been undertaken. The clinical course and necropsy findings suggest that death was the result of a slowly evolving systemic anaphylactic reaction which terminated in hypotension and righs heart failure. The deceased was probably atopic. The current recommendations for the vaccination of international travellers against typhoid and cholera are discussed.  相似文献   

17.
We report six cases of possible acute cardiovascular death in young adults, where very recent cannabis ingestion was documented by the presence of tetrahydrocannabinol (THC) in postmortem blood samples. A broad toxicological blood analysis could not reveal other drugs. Similar cases have been reported in the literature, but the toxicological analysis has been absent or limited to urine samples, which represent a much broader time window for cannabis intake. This paper presents six case reports, where cannabis alone was detected in blood. Further, an overview over previously published cases, clinical trials and possible patho-physiological mechanisms are presented.  相似文献   

18.
The State of Victoria in Australia was one of the first jurisdictions in the world to introduce legislation regulating donor conception. Under the Infertility (Medical Procedures) Act 1984 (Vic), donor-conceived people, aged 18 years and over, parents of children under 18 years, and donors gained the right to apply for the release of identifying information about each other recorded in a Central Register. As a result, of this and subsequent legislation, services providing donor treatment were obliged to change clinical practice relating to recruitment of donors, counselling of donors and recipients and recordkeeping. Since this legislation was introduced in 1988, over 5,000 donor-conceived children have been born and in 2006 the first 100 of these children reached the age of 18. The Victorian Infertility Treatment Authority (ITA) conducted a public education campaign to provide information and support to people affected by the legislation. This article describes clinical practice changes prompted by legislation, the 'Time to Tell" campaign and the service model developed for linking parties on the donor registers. The Victorian experience demonstrates that laws allowing the parties involved in donor conception access to information about each other must be accompanied by changes to clinical practice, public education about the implications of the laws, and services to meet the needs of those seeking information relating to donor conception and those contacted as a result.  相似文献   

19.
The case history and toxicologic findings of a 23-year-old woman who committed suicide with Remoxipride are described. Remoxipride is a recently developed neuroleptic drug of the benzamide type. Remoxipride was detected in the liver, stomach content, blood, and urine. The concentration of Remoxipride in the blood was 230 mg/L. The recommended therapeutic level for Remoxipride should not exceed 7 to 8 mg/L. The victim had no blood alcohol, but an ethanol concentration of 0.048 g/100 L was detected in the urine. The mechanism of death from Remoxipride intoxication is not known. In clinical studies, sinus bradycardia and infrequent supraventricular and ventricular ectopic beats have been noted.  相似文献   

20.
《Federal register》1980,45(155):52821-52824
The Food and Drug Administration (FDA) is proposing to amend the biologics regulations concerning blood and blood components to require the submission of certain error and accident reports to the agency by licensed and unlicensed blood etablishments. These reports of error and accidents are being limited to those related to the issue of hepatitis-reactive blood and blood components and the accidental infusion of the wrong red blood cells to a donor during plasmapheresis. Certain other reports of error and accidents would no longer be required to be submitted to the Director, Bureau of Biologics, by these blood establishments. The agency is also proposing to amend the current good manufacturing practice (GMP) regulations for blood and blood components to provide a uniform procedure for reporting and maintaining these records.  相似文献   

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