Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 241
Filtrar
1.
JBJS Case Connect ; 14(1)2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38422190

RESUMO

CASE: A 23-month-old otherwise healthy female child from a low opportunity index neighborhood presented with 1 month of lower extremity pain and refusal to bear weight. Radiographic evaluation of bilateral knees revealed lucent metaphyseal bands and a nondisplaced distal femoral metaphyseal corner fracture. A workup identified vitamin C deficiency (scurvy), and the child's symptoms and radiographic abnormalities resolved with vitamin C supplementation. CONCLUSIONS: Scurvy should be considered in children with unexplained musculoskeletal symptoms who may lack access to nutrient-dense foods.


Assuntos
Fraturas Ósseas , Ortopedia , Escorbuto , Feminino , Humanos , Lactente , Fêmur , Dor , Escorbuto/diagnóstico por imagem , Escorbuto/etiologia
2.
BMJ Case Rep ; 17(2)2024 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-38417944

RESUMO

Scurvy is caused by vitamin C deficiency and is often thought of as an ancient malady. However, it still afflicts present-day patients with insufficient nutrition, excessive alcohol consumption and disorders of absorption. Scurvy is traditionally characterised by ecchymosis, petechiae, haemorrhages, poor wound healing, myalgias and arthralgias, but it can also present with non-specific symptoms, including mood changes, fatigue, malaise and dyspnoea. Although scurvy can present with signs of excess bleeding, it does not involve blood clotting. We present a case of concurrent scurvy and pulmonary embolism in which clinical presentation and laboratory findings mimicked a coagulation disorder, resulting in delayed diagnosis and excessive resource expenditure. This case underscores the importance of obtaining an early dietary and substance use history in patients with unexplained haematological symptoms. These crucial components of history-taking can significantly reduce invasive and costly tests, resulting in quicker diagnosis and enhanced patient outcomes.


Assuntos
Deficiência de Ácido Ascórbico , Púrpura , Escorbuto , Humanos , Escorbuto/diagnóstico , Escorbuto/etiologia , Deficiência de Ácido Ascórbico/complicações , Deficiência de Ácido Ascórbico/diagnóstico , Dieta , Hemorragia/complicações , Ácido Ascórbico/uso terapêutico
4.
Nutr Clin Pract ; 38(1): 46-54, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36156315

RESUMO

In 1747, an important milestone in the history of clinical research was set, as the Scottish surgeon James Lind conducted the first randomized controlled trial. Lind was interested in scurvy, a severe vitamin C deficiency which caused the death of thousands of British seamen. He found that a dietary intervention with oranges and lemons, which are rich in vitamin C by nature, was effective to recover from scurvy. Because of its antioxidative properties and involvement in many biochemical processes, the essential micronutrient vitamin C plays a key role in the human biology. Moreover, the use of vitamin C in critical illness-a condition also resulting in death of thousands in the 21st century-has gained increasing interest, as it may restore vascular responsiveness to vasoactive agents, ameliorate microcirculatory blood flow, preserve endothelial barriers, augment bacterial defense, and prevent apoptosis. Because of its redox potential and powerful antioxidant capacity, vitamin C represents an inexpensive and safe antioxidant, with the potential to modify the inflammatory cascade and improve clinical outcomes of critically ill patients. This narrative review aims to update and provide an overview on the role of vitamin C in the human biology and in critically ill patients, and to summarize current evidence on the use of vitamin C in diverse populations of critically ill patients, in specific focusing on patients with sepsis and coronavirus disease 2019.


Assuntos
COVID-19 , Escorbuto , Masculino , Humanos , Ácido Ascórbico/farmacologia , Ácido Ascórbico/uso terapêutico , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Antioxidantes/fisiologia , Estado Terminal/terapia , Microcirculação , COVID-19/complicações , Vitaminas/uso terapêutico
5.
Arch. argent. pediatr ; 120(3): e137-e141, junio 2022. tab, ilus
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1370716

RESUMO

El escorbuto es una enfermedad producida por déficit de vitamina C. Si bien en la actualidad es poco frecuente, la bibliografía describe grupos de riesgo en la población pediátrica, dentro de los que se encuentran los pacientes con alteraciones alimentarias. Se reporta el caso de un adolescente varón, de 11 años de edad, que desarrolló la enfermedad por un hábito alimentario selectivo, sin ingesta de frutas ni verduras. El objetivo del reporte es resaltar la importancia de la anamnesis alimentaria completa en la consulta con el equipo de salud, que permita sospechar y detectar de manera temprana y oportuna trastornos por déficit de micronutrientes como el escorbuto.


Scurvy is a disease caused by vitamin C deficiency. Although it is currently rare, risk groups in the pediatric population are described in the bibliography, including patients with eating disorders. We report the case of an 11-year-old male adolescent who developed the disease due to a selective eating habit, without fruits or vegetables. The objective of this report is to highlight the importance of complete food anamnesis in consultation with the health team, which allows to suspect and detect early and timely micronutrient deficiency disorders such as scurvy.


Assuntos
Humanos , Masculino , Criança , Adolescente , Escorbuto/diagnóstico , Escorbuto/etiologia , Transtornos da Alimentação e da Ingestão de Alimentos , Fatores de Risco , Micronutrientes , Comportamento Alimentar
6.
Arch Argent Pediatr ; 120(3): e137-e141, 2022 06.
Artigo em Espanhol | MEDLINE | ID: mdl-35533127

RESUMO

Scurvy is a disease caused by vitamin C deficiency. Although it is currently rare, risk groups in the pediatric population are described in the bibliography, including patients with eating disorders. We report the case of an 11-year-old male adolescent who developed the disease due to a selective eating habit, without fruits or vegetables. The objective of this report is to highlight the importance of complete food anamnesis in consultation with the health team, which allows to suspect and detect early and timely micronutrient deficiency disorders such as scurvy.


El escorbuto es una enfermedad producida por déficit de vitamina C. Si bien en la actualidad es poco frecuente, la bibliografía describe grupos de riesgo en la población pediátrica, dentro de los que se encuentran los pacientes con alteraciones alimentarias. Se reporta el caso de un adolescente varón, de 11 años de edad, que desarrolló la enfermedad por un hábito alimentario selectivo, sin ingesta de frutas ni verduras. El objetivo del reporte es resaltar la importancia de la anamnesis alimentaria completa en la consulta con el equipo de salud, que permita sospechar y detectar de manera temprana y oportuna trastornos por déficit de micronutrientes como el escorbuto. Palabras clave: escorbuto, vitamina C, deficiencia de ácido ascórbico, micronutrientes.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Escorbuto , Adolescente , Criança , Comportamento Alimentar , Humanos , Masculino , Micronutrientes , Fatores de Risco , Escorbuto/diagnóstico , Escorbuto/etiologia
7.
J Trop Pediatr ; 68(3)2022 04 05.
Artigo em Inglês | MEDLINE | ID: mdl-35380727

RESUMO

In modern society, scurvy is well known in its historical perspective rather than clinical relevance. Scurvy is classically thought to manifest with signs of 'bleeding painful gums' in the undernourished. Little is known regarding its ability to mimic a wide range of rheumatological, orthopaedic, neurological and haematological illnesses. Due to the rarity of its occurrence, there is a poor understanding among present-day clinicians, and so scurvy can easily deceive the uninitiated. We report a school-aged boy with normal neurodevelopment who presented with lower limb pain and difficulty in walking. He was seen by multiple specialist doctors before the clinical diagnosis of scurvy was made by a general paediatrician. Investigations showed that this child had X-ray changes typical of scurvy with low serum ascorbic acid levels. On supplementation with vitamin C, he showed dramatic improvement in symptoms and gradually achieved complete recovery.


Assuntos
Escorbuto , Ácido Ascórbico/uso terapêutico , Criança , Humanos , Masculino , Dor , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Vitaminas , Caminhada
8.
Clin Exp Dermatol ; 47(3): 613-614, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34773286

RESUMO

A 23-year-old man with a diagnosis of thalassaemia major on regular blood transfusions presented with complaints of intermittent gum bleeds, joint pain, palpable purpura and ecchymoses in both lower limbs, which was confirmed to be scurvy. He improved dramatically with vitamin C supplementation.


Assuntos
Escorbuto/complicações , Escorbuto/diagnóstico , Talassemia/complicações , Ácido Ascórbico/uso terapêutico , Dieta/efeitos adversos , Suplementos Nutricionais , Transfusão de Eritrócitos , Humanos , Masculino , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Talassemia/terapia , Adulto Jovem
9.
Nutr Clin Pract ; 37(5): 1242-1245, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34784069

RESUMO

Vitamin C (ascorbic acid) is an essential water-soluble antioxidant, and deficiency (ie, plasma level <11 µmol/L) can result in scurvy. People at the highest risk for vitamin C deficiency (ie, scurvy) are those with inadequate intake, such as patients with alcohol abuse disorder, malnutrition, psychiatric disorders, restrictive eating habits, and food insecurity, as well as those with malabsorptive syndromes. We present a case of a 26-year-old woman with Crohn's colitis, myasthenia gravis, and juvenile rheumatoid arthritis who presented with frequent bruising, epistaxis, and excessive bleeding from small cuts and who was found to be deficient in vitamin C. Plasma levels initially normalized with oral vitamin C supplementation, but bleeding symptoms eventually returned despite high-dose oral supplementation with 2000 mg daily. She ultimately required routine intravenous supplementation in the home setting for the normalization of levels and the resolution of symptoms. Case reports of vitamin C deficiency typically involve patients with an inadequate intake of vitamin C-containing foods or inadequate absorption. In contrast, our patient reported a regular intake of vitamin C-containing foods, in addition to oral supplementation, but continued to have difficulty maintaining normal vitamin C levels. Scurvy should be considered for any patient with symptoms of bleeding, petechiae, or ecchymosis and, although it can typically be treated with oral vitamin C, intravenous repletion may be necessary in some cases.


Assuntos
Deficiência de Ácido Ascórbico , Doença de Crohn , Miastenia Gravis , Escorbuto , Adulto , Ácido Ascórbico/uso terapêutico , Deficiência de Ácido Ascórbico/complicações , Deficiência de Ácido Ascórbico/tratamento farmacológico , Doença de Crohn/complicações , Doença de Crohn/tratamento farmacológico , Feminino , Humanos , Miastenia Gravis/complicações , Miastenia Gravis/tratamento farmacológico , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Vitaminas/uso terapêutico
10.
Intern Med ; 61(11): 1795-1798, 2022 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-34776483

RESUMO

Scurvy is a rare disease caused by a vitamin C deficiency. Vitamin C is a water-soluble vitamin found in vegetables and fruits, but it is lost after boiling. A 59-year-old man presented with gingival pain after having a tooth extracted five years previously. Following the procedure, his diet comprised boiled vegetables to prevent pain. He then experienced bilateral lower leg pain, and computed tomography revealed intramuscular bleeding. His serum vitamin C level was below the detectable limit. His symptoms immediately improved with vitamin C administration. This case emphasized that consuming only boiled vegetables can lead to the onset of scurvy.


Assuntos
Dor Musculoesquelética , Escorbuto , Ácido Ascórbico/uso terapêutico , Dieta , Humanos , Masculino , Pessoa de Meia-Idade , Escorbuto/diagnóstico , Escorbuto/etiologia , Verduras , Vitaminas/uso terapêutico
11.
Aust Dent J ; 67(1): 100-103, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34762297

RESUMO

Hypovitaminosis C, or scurvy, is thought to be an uncommon condition. Although prevalent in the 19th century, its ease of absorption and availability in a general diet has greatly reduced its incidence. Vitamin C is necessary for a number of physiological processes and deficiency can result in a number of complications including bleeding/bruising, anaemia and gingival hyperplasia. This case report demonstrates a case of hypovitaminosis C presenting to a tertiary hospital related to poor dietary intake in a patient with behavioural medical conditions. Treatment consisted of oral supplementation of vitamin C with almost immediate resolution of presenting symptoms.


Assuntos
Escorbuto , Ácido Ascórbico/uso terapêutico , Humanos , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Vitaminas
12.
J Am Coll Health ; 70(3): 670-672, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-32432971

RESUMO

A previously healthy university student presents to Health Services with sudden onset of pain, fatigue, bruising, and a rapidly progressive anemia. There was not any previous significant health history. The case discussion will emphasize the critical overlap of physical and mental health assessments in identifying the cause and cure of a potentially life-threatening health crisis for a young adult student.


Assuntos
Dor Aguda , Desnutrição , Escorbuto , Dor Aguda/complicações , Ácido Ascórbico , Fadiga/diagnóstico , Fadiga/etiologia , Humanos , Desnutrição/complicações , Escorbuto/etiologia , Estudantes , Universidades , Adulto Jovem
14.
Med J Malaysia ; 76(5): 753-756, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34508390

RESUMO

Vitamin C deficiency or scurvy is an uncommon condition that occurs in poorly developed countries or in refugee camps. Nonetheless, in countries where food is readily available, like Malaysia, occasionally there are cases of vitamin C deficiency reported. Although it was primarily reported in children with special needs or learning disability, scurvy is encountered in children with normal development, among the severe picky eaters. We present here case of a nine-year-old picky-eating boy with scurvy. The development of scurvy in this child took several years, especially after he became a very selective eater at the age of five. The child had displayed limping when walking with knee-joint pain before he came to a primary hospital. However, his condition was not diagnosed promptly and progressively worsened until he was unable to walk. Thus, it is crucial to recognize scurvy in children who limps and are severe picky eaters.


Assuntos
Escorbuto , Criança , Humanos , Malásia , Masculino , Escorbuto/diagnóstico , Escorbuto/etiologia
15.
J Pediatr Orthop ; 41(3): e279-e284, 2021 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-33528119

RESUMO

INTRODUCTION: Scurvy, or vitamin C deficiency, is rare. The goal of this study is to highlight the common risk factors and identify the orthopaedic presentation of scurvy in children. METHODS: A retrospective chart and radiograph review was performed of all patients consulted to the pediatric orthopaedic service from 2010 to 2019 who ultimately had the diagnosis of scurvy confirmed by an abnormally low serum vitamin C level. Data extracted included: patient age, sex, neurological conditions, prematurity, psychiatric conditions, dietary abnormalities, bone pain, arthritis, limb swelling, inability to walk, skin changes, child abuse evaluations, radiographic findings, additional vitamin deficiencies, lab studies, additional tests, response to treatment. Descriptive statistics were performed. RESULTS: Nine patients (7 males, 2 females) with scurvy were studied. The average age was 7 years (range 3 to 13 y). The average body mass index was 21.4 (range, 14 to 30). Five had autism, 2 had a neurological disorder. Two had been born premature. Two had a psychiatric disorder. Seven had an abnormal diet. One presented with bone pain. Four presented with limb swelling. Seven had unilateral and 2 had bilateral leg symptoms. Five presented with inability to walk. Six demonstrated skin changes with ecchymosis or petechiae. Three presented with gingival bleeding. Radiographic findings included subperiosteal hematoma in 2, ring epiphysis in 3, Pelkan spurs in 1, metaphyseal white lines (Frankel sign) in 6, and a metaphyseal zone of rarefaction (Trummerfeld zone) in 3. Seven had additional vitamin deficiencies including: A, B1, B6, B9, D, E, K, iron and zinc. Four had a bone marrow biopsy and 1 had lumbar puncture. All were anemic. The average erythrocyte sedimentation rate was 25.7 (range 6 to 35) and C-reactive protein was 1.5 (range 0.55 to 5.64). Six had a computed tomography, 3 had a magnetic resonance imaging. After treatment with vitamin C lasting 3.4 months (range, 2 wk to 7 mo), all symptoms gradually resolved, including leg pain and swelling. All children began to walk. CONCLUSION: The pediatric orthopaedic surgeon should have an increased awareness about the diagnosis of scurvy when consulted on a child with bone pain or inability to walk. The most common orthopaedic presentation was the refusal to bear weight, the most common radiographic finding was the metaphyseal line of increased density (Frankel sign) and treatment with vitamin c supplementation was excellent in all cases.


Assuntos
Ácido Ascórbico/administração & dosagem , Extremidade Inferior/diagnóstico por imagem , Escorbuto/diagnóstico por imagem , Escorbuto/epidemiologia , Vitaminas/administração & dosagem , Adolescente , Índice de Massa Corporal , Criança , Pré-Escolar , Suplementos Nutricionais , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Dor Musculoesquelética , Ortopedia , Pennsylvania/epidemiologia , Radiografia , Estudos Retrospectivos , Fatores de Risco , Escorbuto/tratamento farmacológico , Escorbuto/etiologia , Ultrassonografia , Caminhada/fisiologia
17.
Pediatr Emerg Care ; 37(8): e483-e484, 2021 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-30461672

RESUMO

ABSTRACT: Ketogenic diets used for treating various neurological disorders can have potentially serious adverse effects. Among these is scurvy, a rarely reported, yet potentially fatal adverse effect of the ketogenic diet caused by vitamin C deficiency. We report a case of a 5-year-old patient with autism, who presented with scurvy secondary to the dietary restrictions of a ketogenic diet. Our review of the literature showed a single previously reported case of vitamin C deficiency in a patient on ketogenic diet. We have also reviewed the clinical indications and adverse effects of ketogenic diets with special reference to scurvy. This case emphasizes the importance of vitamin supplements in patients consuming a special diet.


Assuntos
Transtorno Autístico , Dieta Cetogênica , Escorbuto , Criança , Pré-Escolar , Dieta Cetogênica/efeitos adversos , Família , Humanos , Escorbuto/diagnóstico , Escorbuto/etiologia , Vitaminas
18.
BMJ Case Rep ; 13(12)2020 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-33370932

RESUMO

A 58-year-old woman presented with a 1-week history of lower limb bruising. She had a medical history of recurrent metastatic colon cancer with a sigmoid colectomy and complete pelvic exenteration leading to colostomy and urostomy formation. She had malignant sacral mass encroaching on the spinal cord. This caused a left-sided foot drop for which she used an ankle-foot orthosis. She was on cetuximab and had received radiotherapy to the sacral mass 1 month ago. On examination, there were macular ecchymoses with petechiae on the lower limbs. There was sparing of areas that had been compressed by the ankle-foot orthosis. Bloods showed mild thrombocytopaenia and anaemia with markedly raised inflammatory markers. Coagulation studies consistent with inflammation rather than disseminated intravascular coagulation. She was found to have Klebsiella bacteraemia secondary to urinary source. Skin biopsy showed dermal haemorrhage without vessel inflammation. Vitamin C levels were low confirming the diagnosis of scurvy.


Assuntos
Ácido Ascórbico , Colectomia/efeitos adversos , Neoplasias Colorretais , Equimose , Desnutrição , Apoio Nutricional/métodos , Escorbuto , Antineoplásicos Imunológicos/uso terapêutico , Ácido Ascórbico/administração & dosagem , Ácido Ascórbico/sangue , Bacteriemia/diagnóstico , Bacteriemia/microbiologia , Colectomia/métodos , Neoplasias Colorretais/patologia , Neoplasias Colorretais/fisiopatologia , Neoplasias Colorretais/secundário , Neoplasias Colorretais/terapia , Diagnóstico Diferencial , Equimose/sangue , Equimose/diagnóstico , Equimose/etiologia , Feminino , Humanos , Klebsiella/isolamento & purificação , Extremidade Inferior , Desnutrição/etiologia , Desnutrição/terapia , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Exenteração Pélvica/efeitos adversos , Exenteração Pélvica/métodos , Escorbuto/sangue , Escorbuto/etiologia , Escorbuto/fisiopatologia , Escorbuto/terapia , Pele/patologia , Resultado do Tratamento , Vitaminas/administração & dosagem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...