Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 323
Filtrar
1.
Medicina (Kaunas) ; 60(4)2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38674289

RESUMO

The patient was a man in his 80s who had undergone laparoscopic anterior resection for rectal cancer. Bowel obstruction occurred on the third postoperative day but improved with a decompression tube by the fifth postoperative day. A high fever (in the 38 °C range) was also observed. Blood culture tests detected two sets of the gram-negative bacilli Klebsiella aerogenes within 24 h of collection. On the seventh postoperative day, the patient subsequently went into septic shock with disseminated intravascular coagulation (DIC). On the eighth postoperative day, the fingertips and toes became black, and the palms and dorsal surfaces of both feet were dark purple due to peripheral circulatory failure. This suggested acute infectious purpura associated with sepsis (acute infectious purpura fulminans (AIPF)). Intensive care was provided; however, the necrosis of both middle fingers worsened, both middle fingers were gangrenous, and the patient died on the thirtieth postoperative day. AIPF is rarely reported, especially in early-onset cases after elective surgery. We encountered a rare complication of bacterial translocation from postoperative bowel obstruction, leading to AIPF.


Assuntos
Translocação Bacteriana , Púrpura Fulminante , Neoplasias Retais , Humanos , Masculino , Neoplasias Retais/cirurgia , Idoso de 80 Anos ou mais , Complicações Pós-Operatórias/microbiologia , Evolução Fatal , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Obstrução Intestinal/microbiologia
2.
3.
BMJ Case Rep ; 17(3)2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38531552

RESUMO

Purpura fulminans (PF) is a life-threatening complication of septic shock that can occur due to disseminated infections with Streptococcus pneumoniae The spleen is an important organ in the immunisation process against encapsulated bacteria. Patients with asplenia, either functional or anatomical, are therefore at increased risk of developing serious infections and complications, such as PF, if infected with such bacteria.This case report presents a woman in her late 40s with unacknowledged functional asplenia who was admitted to the hospital with signs of an acute disseminated infection causing septic shock, signs of disseminated intravascular coagulation and infectious PF. A few days after admission, the blood cultures showed growth of S. pneumoniae With early sepsis treatment, the patient survived although with some complications. Clinical presentation, investigations, differential diagnosis, treatment and outcome are presented. Treatment and early recognition of PF are presented and discussed. Relevant recognition and preventative treatment strategies for patients with asplenia are also reviewed and discussed.This case demonstrates the importance of early recognition and treatment of PF in septic patients and the importance of preventive treatment strategies for patients with asplenia to avoid serious infections and complications.


Assuntos
Bacteriemia , Infecções Pneumocócicas , Púrpura Fulminante , Sepse , Choque Séptico , Esplenopatias , Feminino , Humanos , Púrpura Fulminante/diagnóstico , Choque Séptico/complicações , Infecções Pneumocócicas/microbiologia , Streptococcus pneumoniae , Sepse/complicações , Bacteriemia/complicações , Esplenopatias/complicações
5.
Blood ; 143(11): 1032-1044, 2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38096369

RESUMO

ABSTRACT: Extreme disease phenotypes can provide key insights into the pathophysiology of common conditions, but studying such cases is challenging due to their rarity and the limited statistical power of existing methods. Herein, we used a novel approach to pathway-based mutational burden testing, the rare variant trend test (RVTT), to investigate genetic risk factors for an extreme form of sepsis-induced coagulopathy, infectious purpura fulminans (PF). In addition to prospective patient sample collection, we electronically screened over 10.4 million medical records from 4 large hospital systems and identified historical cases of PF for which archived specimens were available to perform germline whole-exome sequencing. We found a significantly increased burden of low-frequency, putatively function-altering variants in the complement system in patients with PF compared with unselected patients with sepsis (P = .01). A multivariable logistic regression analysis found that the number of complement system variants per patient was independently associated with PF after controlling for age, sex, and disease acuity (P = .01). Functional characterization of PF-associated variants in the immunomodulatory complement receptors CR3 and CR4 revealed that they result in partial or complete loss of anti-inflammatory CR3 function and/or gain of proinflammatory CR4 function. Taken together, these findings suggest that inherited defects in CR3 and CR4 predispose to the maladaptive hyperinflammation that characterizes severe sepsis with coagulopathy.


Assuntos
Púrpura Fulminante , Sepse , Humanos , Púrpura Fulminante/genética , Estudos Prospectivos , Receptores de Complemento
6.
Enferm Intensiva (Engl Ed) ; 35(1): 13-22, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37527957

RESUMO

INTRODUCTION: Purpura fulminans (PF) is a serious complication of sepsis resulting from a set of alterations characterised by the development of ecchymotic haemorrhagic lesions and skin necrosis. AIM: To analyse the efficacy and safety of the topical application of HOFA compound, in the cutaneous microcirculation of PF lesions in paediatric patients affected by sepsis. MATERIAL AND METHODS: A prospective quasi-experimental pre-test/post-test single-group conducted in a Paediatric Intensive Care Unit of a third level hospital was performed. Paediatric patients aged 0-18 years with sepsis were included. Somatic oximetry values were measured before and after application of HOFAs every 4h over the first three days of the patients' hospitalisation. Patient's socio-demographic and clinical variables and somatic oximetry by placing a sensor for measuring tissue perfusion on the area with PF were determined. RESULTS: Four patients were recruited, with a median age of 98 months. The purpuric lesions measured were mainly located on both feet and hands and, in two patients, also on the lateral malleoli and calves of both lower extremities. A total of 225 measurements were obtained, with mean pre-intervention scores of 71.17±15.65% versus 73.68±14.83% post-intervention. Statistical significance (p<0.001) was observed upon comparison of the pre- and post-intervention measurements. CONCLUSIONS: Early and continued application of HOFAs in the management of sepsis-induced PF is an effective and safe practice in the cases analysed. In more than half of the episodes analysed, an increase in tissue microcirculation was observed after the application of HOFAs, with no adverse events.


Assuntos
Púrpura Fulminante , Sepse , Humanos , Criança , Púrpura Fulminante/etiologia , Púrpura Fulminante/patologia , Projetos Piloto , Ácidos Graxos , Estudos Prospectivos , Microcirculação , Sepse/complicações , Sepse/tratamento farmacológico
7.
Vox Sang ; 119(3): 193-202, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38018260

RESUMO

BACKGROUND AND OBJECTIVES: Deficiencies of protein C (PC) or protein S (PS) are rare diseases, characterized by mutations in the PC or PS genes, which encode plasma serine proteases with anti-coagulant activity. Severe PC or PS deficiencies manifest in early life as neonatal purpura fulminans, a life-threatening heamorrhagic condition requiring immediate treatment. First-line treatment involves replacement therapy, followed by maintenance with anti-coagulants. Replacement therapy with specific protein concentrates is currently only limited to PC, and therefore, a PC + PS concentrate represents a useful addition to therapeutic options, particularly for severe PS deficiency. Further, the production of a PC + PS concentrate from unused plasma fractionation intermediates would impact favourably on manufacturing costs, and consequently therapy prices for patients and health systems. MATERIALS AND METHODS: Several chromatographic runs were performed on the same unused plasma fractionation intermediates using different supports to obtain a PC/PS concentrate. The best chromatographic mediums were chosen, in terms of specific activity and recovery. A full process of purification including virus inactivation/removal and lyophilization steps was set up. RESULTS: The final freeze-dried product had a mean PC concentration of 47.75 IU/mL with 11% of PS, and a mean specific activity of 202.5 IU/mg protein, corresponding to over 12,000-fold purification from plasma. CONCLUSION: The development of a novel concentrated PC/PS mixture obtained from a waste fraction of other commercial products could be used for its potential therapeutic role in the management of neonatal purpura fulminans pathology.


Assuntos
Deficiência de Proteína C , Púrpura Fulminante , Recém-Nascido , Humanos , Púrpura Fulminante/tratamento farmacológico , Púrpura Fulminante/genética , Deficiência de Proteína C/tratamento farmacológico , Proteína C/análise , Proteína C/uso terapêutico , Proteína S , Plasma/química
10.
BMJ Case Rep ; 16(7)2023 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-37460246

RESUMO

We report a previously healthy woman in her 50s who presented with sepsis, rapidly progressive purpuric rash and disseminated intravascular coagulation. She was diagnosed with acute infective purpura fulminans due to invasive pneumococcal infection likely secondary to sinusitis. Our case report discusses our initial diagnostic uncertainty and approach in investigating and treating such a critically unwell patient.


Assuntos
Coagulação Intravascular Disseminada , Infecções Pneumocócicas , Púrpura Fulminante , Púrpura , Sinusite , Feminino , Humanos , Púrpura Fulminante/complicações , Streptococcus pneumoniae , Infecções Pneumocócicas/complicações , Infecções Pneumocócicas/diagnóstico , Infecções Pneumocócicas/terapia , Coagulação Intravascular Disseminada/complicações , Sinusite/complicações
11.
Med Klin Intensivmed Notfmed ; 118(8): 646-655, 2023 Nov.
Artigo em Alemão | MEDLINE | ID: mdl-37466696

RESUMO

Febrile seizures, which are relatively common in young children, are often triggered by an infection and resolve quickly. Prompt presentation to a pediatric department is mandatory after any first seizure and every time for children ≤ 12 months. Central nervous system (CNS) diseases in childhood are able to cause seizures or other neurological disorders. Even the slightest suspicion of a seizure with CNS involvement must be promptly treated. In case of doubt, both an antiviral and an antibacterial treatment are started in parallel, which can be stopped after detecting the pathogen. Lumbar puncture is strictly indicated unless there are contraindications. Meningococcal sepsis is a severe clinical feature comprising high fever, chills and disorders of consciousness. The first skin symptoms are petechiae as a red flag sign. With progression, potentially lethal purpura fulminans may develop. Waterhouse-Friderichsen syndrome is a severe complication of acute bacterial meningitis. Lethality rate is 35%. The pediatric assessment triangle and the ABCDE algorithm help to identify critically ill children in a standardized, structured, and rapid manner.


Assuntos
Meningites Bacterianas , Púrpura Fulminante , Convulsões Febris , Criança , Humanos , Lactente , Pré-Escolar , Convulsões Febris/diagnóstico , Convulsões Febris/etiologia , Convulsões Febris/terapia , Púrpura Fulminante/diagnóstico , Púrpura Fulminante/terapia , Púrpura Fulminante/complicações , Emergências , Meningites Bacterianas/complicações , Meningites Bacterianas/diagnóstico , Meningites Bacterianas/terapia , Punção Espinal/efeitos adversos
13.
Clin Lab ; 69(5)2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37145086

RESUMO

BACKGROUND: Congenital protein C deficiency is a rare hereditary thrombophilia, neonatal purpura fulminans is the most serious form of this deficit. The purpose of this observation is two-fold. The first is the need to make an early diagnosis in order to improve the prognosis. The second, is to discuss the need. In case of extensive purpura fulminans in the neonatal period, the search for a deficiency in anticoagulant factor, in particular the dosage of protein C, in the newborn and in both parents. METHODS: The diagnosis is biological and is based on the quantitative determination of functionally active protein C. We use the Berichrom® Protein C assay on an automated coagulation analyzer from Siemens Healthcare Diagnostics, which allows the chromogenic determination of Protein C activity. RESULTS: We report an observation of cutaneous necrosis in a newborn having developed a purpura fulminans extensive secondary to a total congenital protein C deficiency. In front of this clinical picture, thrombophilia assessment is requested, revealing an isolated deficit in protein C < 1%. CONCLUSIONS: In the case of extensive purpura fulminans in the neonatal period, the search for a deficiency in anticoagulant factor, in particular the dosage of protein C, is essential in the newborn and in both parents.


Assuntos
Deficiência de Proteína C , Púrpura Fulminante , Trombofilia , Recém-Nascido , Humanos , Púrpura Fulminante/diagnóstico , Púrpura Fulminante/complicações , Deficiência de Proteína C/complicações , Deficiência de Proteína C/diagnóstico , Proteína C , Trombofilia/complicações , Anticoagulantes
15.
Crit Care ; 27(1): 166, 2023 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-37122034

RESUMO

BACKGROUND: Neisseria meningitidis is the leading responsible bacterium of Purpura Fulminans (PF) accounting for two thirds of PF. Skin biopsy is a simple and minimally invasive exam allowing to perform skin culture and polymerase chain reaction (PCR) to detect Neisseria meningitidis. We aimed to assess the sensitivity of skin biopsy in adult patients with meningococcal PF. METHODS: A 17-year multicenter retrospective cohort study including adult patients admitted to the ICU for a meningococcal PF in whom a skin biopsy with conventional and/or meningococcal PCR was performed. RESULTS: Among 306 patients admitted for PF, 195 had a meningococcal PF (64%) with a skin biopsy being performed in 68 (35%) of them. Skin biopsy was performed in median 1 day after the initiation of antibiotic therapy. Standard culture of skin biopsy was performed in 61/68 (90%) patients and grew Neisseria meningitidis in 28 (46%) of them. Neisseria meningitidis PCR on skin biopsy was performed in 51/68 (75%) patients and was positive in 50 (98%) of them. Among these 50 positive meningococcal PCR, five were performed 3 days or more after initiation of antibiotic therapy. Finally, skin biopsy was considered as contributive in 60/68 (88%) patients. Identification of the meningococcal serogroup was obtained with skin biopsy in 48/68 (71%) patients. CONCLUSIONS: Skin biopsy with conventional culture and meningococcal PCR has a global sensitivity of 88% and should be systematically considered in case of suspected meningococcal PF even after the initiation of antimicrobial treatment.


Assuntos
Meningite Meningocócica , Infecções Meningocócicas , Neisseria meningitidis , Púrpura Fulminante , Humanos , Adulto , Púrpura Fulminante/microbiologia , Estudos Retrospectivos , Biópsia , Antibacterianos/uso terapêutico , Infecções Meningocócicas/complicações , Meningite Meningocócica/diagnóstico , Meningite Meningocócica/microbiologia
16.
Blood Coagul Fibrinolysis ; 34(4): 247-249, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-36966757

RESUMO

Purpura fulminans is a thrombotic emergency affecting small vessels of skin and of internal organs that may rapidly progress into necrotizing fasciitis, critical limb ischaemia and multiorgan failure; it often develops during an infection or as a postinfective 'autoimmune' disorder. Although supportive care and hydration are important, anticoagulation ought to be started to prevent further occlusions alongside blood products according to need. Herein, we describe the case of an elderly woman who received extended intravenous low-dose recombinant tissue plasminogen activator at the onset of purpura fulminans that salvaged her skin and prevented the development of multiorgan failure.


Assuntos
Púrpura Fulminante , Trombose , Humanos , Feminino , Idoso , Púrpura Fulminante/tratamento farmacológico , Púrpura Fulminante/etiologia , Ativador de Plasminogênio Tecidual/uso terapêutico , Insuficiência de Múltiplos Órgãos
17.
Rev Prat ; 73(1): 71-78, 2023 Jan.
Artigo em Francês | MEDLINE | ID: mdl-36820463

RESUMO

PURPURA FULMINANS IN ADULT PATIENTS. Purpura fulminans is a rare life-threatening infectious disease characterized by the association of a sudden and extensive purpuric rash together with an acute circulatory failure. PF commonly affects young patients with no previous comorbidities. Neisseria meningitidis and Streptococcus pneumoniae are the leading causative bacteria. Diagnosing purpura fulminans before the apparition of the purpuric rash is challenging since prodromal symptoms are nonspecific and consistent with a "flu-like" syndrome. The clinical presentation of patients with purpura fulminans differs from that of patients with bacterial meningitis since most of the patients with purpura fulminans have no neurological impairment. Microbiological diagnosis relies on blood cultures and skin biopsy of purpuric lesions. The indication for lumbar puncture must be evaluated on a case-by-case basis because patients usually have no neurological signs but severe coagulation disorders. Treatment is no different from that of any other septic shock: antibiotic therapy with a third-generation cephalosporin as soon as the diagnosis is suspected and treatment of associated organ failures. Despite these pathogens being highly susceptible to broadly available antibiotics, the prognosis of PF is dismal with a mortality rate of 40% in the intensive care unit and a significant risk of distant sequelae in surviving patients.


PURPURA FULMINANS DE L'ADULTE. Le purpura fulminans (PF) est une maladie infectieuse rare touchant préférentiellement l'adulte jeune sans comorbidités. Il se définit par l'association d'un état de choc septique et d'un purpura d'apparition et d'extension rapides. Les deux principales bactéries responsables sont le méningocoque et le pneumocoque. L'éruption purpurique est précédée par une phase prodromique faite de symptômes aspécifiques (syndrome pseudogrippal) rendant difficile un diagnostic précoce. La présentation clinique des patients ayant un purpura fulminans diffère de celle des patients ayant une méningite bactérienne. Le diagnostic microbiologique repose sur les hémocultures et sur la biopsie cutanée. L'indication de la ponction lombaire est à évaluer au cas par cas car les patients n'ont le plus souvent aucun signe neurologique mais des troubles sévères de l'hémostase contre-indiquant le geste. La prise en charge des patients ayant un PF n'a aucune spécificité comparativement à celle des patients ayant un choc septique lié à une autre porte d'entrée : antibiothérapie par une céphalosporine de troisième génération dès la suspicion diagnostique et traitement des défaillances d'organes associées. Bien que les bactéries responsables de purpura fulminans soient extrêmement sensibles aux antibiotiques, le pronostic du PF reste sombre, avec une mortalité en réanimation s'élevant à 40 % et un risque important de séquelles à distance chez les patients survivants.


Assuntos
Exantema , Neisseria meningitidis , Púrpura Fulminante , Humanos , Adulto , Púrpura Fulminante/diagnóstico , Púrpura Fulminante/microbiologia , Púrpura Fulminante/patologia , Pele/patologia , Antibacterianos/uso terapêutico
20.
J Plast Reconstr Aesthet Surg ; 79: 23-29, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36842284

RESUMO

INTRODUCTION: Purpura fulminans (PF) is a rare syndrome of cutaneous purpura which is the consequence of severe circulatory shock causing intravascular thrombosis, haemorrhagic necrosis, and consequent tissue loss. The aim of this study was to present our 16-year experience of managing PF in a regional burns centre. METHODS: We performed a single-centre retrospective case series of all patients admitted to the St Andrews Burns Centre at Broomfield Hospital, Chelmsford, Essex, UK, between June 2006 and July 2022 with a diagnosis of PF. Data were extracted by retrospectively searching hospital case notes. RESULTS: Thirteen individuals were identified [five children (mean age 5, range 1-14) and eight adults (mean age 39, range 24-54)]. The total body surface area of cutaneous necrosis ranged from 5% to 80%, with a mean of 27.2%. Patients were treated with an established surgical sequence of total wound debridement and immediate coverage with a cadaveric allograft, followed by staged wound autografting. The mean time from disease onset to wound autografting was 37.3 days (range 20-64 days). Eight individuals (61.6%) required major amputation of at least one limb (proximal to the ankle or wrist joint). Only one mortality (of 80% total body surface area skin loss) was observed in the identified cohort. CONCLUSIONS: The large body surface areas often involved in PF cases make management of these wounds well suited for burns centres, wherein established facilities and multidisciplinary teams exist that are familiar with managing large cutaneous burns. We provide a suggested algorithm to aid the management of PF.


Assuntos
Queimaduras , Púrpura Fulminante , Adulto , Criança , Humanos , Pré-Escolar , Púrpura Fulminante/terapia , Púrpura Fulminante/cirurgia , Estudos Retrospectivos , Desbridamento , Queimaduras/complicações , Queimaduras/terapia , Necrose
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA