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1.
Pediatr Emerg Care ; 36(1): e1-e3, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29369263

RESUMO

Scurvy in modern times may not be as rare as previously thought. The link between adequate intake of vitamin C and scurvy has been known since ancient times and is recorded in Ebers Papyrus. Recent reports indicate that, with restricted diets, vitamin C deficiency is being seen in infants exclusively fed plant-based formula and children with oral aversion, autism, restricted diets, and cerebral palsy. Additional at-risk groups include the older adults and patients having alcoholism. Often costly, emergency department visits and elaborate diagnostic studies lead to fruitless results when a simple diet history is often overlooked. Here, we report a case of pediatric scurvy in an 11-year-old autistic child with a restricted diet who presented with refusal to walk, fatigue, a purpuric rash, and gingival bleeding. The diagnosis was made based on diet history, physical examination findings, and symptom resolution with vitamin C supplementation. Our case report reaffirms that vitamin C deficiency still occurs and should be considered in children with restrictive diets. Early recognition of this disease by physicians provides early diagnosis, avoids costly diagnostic workup and hospitalization, and expedites effective treatment.


Assuntos
Transtorno Autístico/complicações , Comportamento Alimentar , Escorbuto/diagnóstico , Criança , Diagnóstico Tardio , Dieta/efeitos adversos , Humanos , Masculino , Escorbuto/complicações
2.
Am J Phys Anthropol ; 167(4): 876-895, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30298514

RESUMO

The past two decades have seen a proliferation in bioarchaeological literature on the identification of scurvy, a disease caused by chronic vitamin C deficiency, in ancient human remains. This condition is one of the few nutritional deficiencies that can result in diagnostic osseous lesions. Scurvy is associated with low dietary diversity and its identification in human skeletal remains can provide important contextual information on subsistence strategy, resource allocation, and human-environmental interactions in past populations. A large and robust methodological body of work on the paleopathology of scurvy exists. However, the diagnostic criteria for this disease employed by bioarchaeologists have not always been uniform. Here we draw from previous research on the skeletal manifestations of scurvy in adult and juvenile human skeletal remains and propose a weighted diagnostic system for its identification that takes into account the pathophysiology of the disease, soft tissue anatomy, and clinical research. Using a sample of individuals from the prehistoric Atacama Desert in Northern Chile, we also provide a practical example of how diagnostic value might be assigned to skeletal lesions of the disease that have not been previously described in the literature.


Assuntos
Paleopatologia/métodos , Escorbuto , Adulto , Arqueologia , Osso e Ossos/patologia , Criança , Chile , Diagnóstico Diferencial , Dieta , História Antiga , Humanos , Lactente , Maxila/patologia , Escorbuto/diagnóstico , Escorbuto/história , Escorbuto/patologia
3.
Ann Dermatol Venereol ; 144(2): 125-129, 2017 Feb.
Artigo em Francês | MEDLINE | ID: mdl-27502755

RESUMO

INTRODUCTION: Scurvy, or "Barlow's disease", is a widely described disease involving cutaneous and mucosal lesions resulting from vitamin C deficiency. Herein, we report a case of scurvy in a 48-year-old woman that was unusual in its atypical cutaneous-mucosal presentation as well as its association with anorexia nervosa. PATIENTS AND METHODS: A 48-year-old woman treated for depression for several years was admitted to hospital for her impaired general state of health. Over the last year, she had presented palmoplantar rash and episodes of perimalleolar oedema. The clinical examination showed the patient to have wasting syndrome, with a BMI of 11.9kg/m2, lower-limb oedema, palmoplantar fissures, geographic tongue, telogen effluvium and purpuric petechiae on her right knee. However, no gingival bleeding was noted and there was no loss of tooth enamel. The remainder of the clinical examination was normal. Blood tests revealed extremely low vitamin C levels without any other associated deficiencies, as well as laboratory signs of cytolysis and anicteric cholestasis without inflammatory syndrome. The diagnosis of anorexia nervosa was made by psychiatrists, despite the unusual age of onset. Favorable clinical outcome was rapidly achieved via a one-month course of vitamin C supplements at a daily dose of 1g. DISCUSSION: The absence of classical buccal-dental symptoms and the presence of keratotic dermatosis with fissures and ulcers on the hands and feet are atypical in scurvy; however, this diagnosis was confirmed by the existence of purpura evoking capillary fragility, the patient's drastically low vitamin C level and the rapid subsidence of symptoms following treatment with oral vitamin C alone. Anorexia nervosa was doubtless the cause of deficiency. This situation is rare and a systematic review of the literature in Medline via PubMed showed that only three reports of scurvy associated with mental anorexia have been published since 1975.


Assuntos
Anorexia Nervosa/diagnóstico , Escorbuto/diagnóstico , Anorexia Nervosa/sangue , Ácido Ascórbico/sangue , Ácido Ascórbico/uso terapêutico , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Escorbuto/sangue , Escorbuto/tratamento farmacológico , Síndrome de Emaciação/sangue , Síndrome de Emaciação/diagnóstico
4.
J Ren Nutr ; 26(6): 407-411, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27118080

RESUMO

Patients with chronic kidney disease (CKD) or end-stage renal disease are at risk for vitamin C deficiency and scurvy due to diet restriction, increased urinary loss of the water-soluble vitamin C with diuretics, and in case of patients who are on dialysis, through dialysates. The condition may be overlooked as the clinical manifestation of scurvy may be subtle, and some presentations may mimic clinical signs in CKD. We reported a case of scurvy presenting with gingival bleeding and blood dialysate in a 6-year-old girl with end-stage renal disease who was on continuous ambulatory peritoneal dialysis. Physical examination showed gingival hyperplasia and bleeding, and the pathognomonic bleeding of perifollicular hemorrhage. The typical radiographic changes were present. The clinical signs and symptoms resolved after ascorbic acid treatment. This case underscores the importance of awareness of the increased risk for vitamin C deficiency in patients with CKD and receiving dialysis.


Assuntos
Hemorragia Gengival/etiologia , Falência Renal Crônica/complicações , Escorbuto/complicações , Ácido Ascórbico , Criança , Soluções para Diálise , Feminino , Humanos , Diálise Peritoneal , Diálise Renal , Escorbuto/diagnóstico
5.
J Cutan Med Surg ; 20(6): 592-595, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27416817

RESUMO

IMPORTANCE: Scurvy remains prevalent in certain populations, including addicts, people of low socioeconomic status, and the severely malnourished. It classically presents as follicular hyperkeratosis and perifollicular hemorrhage of the lower extremities, as well as bleeding in other areas such as the gingiva and joints. This case presentation and literature review highlights the common pathophysiological findings associated with scurvy and current methods of diagnosis and treatment. OBSERVATION: The patient described in this case presented with sudden oligoarthritis and purpura of the lower extremities. Following progression of the patient's symptoms and a low vitamin C serum concentration, the patient was treated with vitamin C supplementation and dramatically improved. This was considered to be the result of an underlying vitamin C deficiency secondary to insufficient fruit and vegetable intake due to allergies. CONCLUSIONS AND RELEVANCE: This case highlights the importance of maintaining a high index of suspicion for scurvy in atypical presentations of purpura not better explained by another disease or in additional populations at high risk of vitamin C deficiency. Early diagnosis by either a primary care physician or dermatologist can expedite the treatment process and improve patient prognosis.


Assuntos
Escorbuto/complicações , Escorbuto/diagnóstico , Idoso , Artrite/etiologia , Ácido Ascórbico/uso terapêutico , Feminino , Humanos , Paniculite/etiologia , Púrpura/etiologia , Escorbuto/tratamento farmacológico , Vitaminas/uso terapêutico
6.
Dermatol Online J ; 22(1)2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26990475

RESUMO

Scurvy results from a deficiency of vitamin C, a nutrient otherwise known as ascorbic acid. Today, scurvy is rare yet emerges in select patients. The patient reported herein developed scurvy secondary to deliberate avoidance of vitamin C-rich foods. Classic cutaneous manifestations of scurvy include follicular hyperkeratosis and perifollicular hemorrhage encompassing coiled "corkscrew" hairs and hairs bent into "swan-neck" deformities. Ecchymoses, purpura, and petechiae are also characteristically prominent. Classic oral abnormalities include erythematous, swollen gingivae that hemorrhage from subtle microtrauma.Subungual linear splinter hemorrhages may also manifest as a sign of the disease. To establish the diagnosis requirements include characteristic physical exam findings, evidence of inadequate dietary intake, and rapid reversal of symptoms upon supplementation. Although unnecessary for diagnosis, histological findings demonstrate perifollicular inflammation and hemorrhage, fibrosis, and hyperkeratosis, amongst dilated hair follicles and keratin plugging. Although citrus fruit allergies have been historically documented, ascorbic acid has not been previously reported as an allergen. Although lacking absolute certainty, this report suggests a presumed case of ascorbic acid allergy based on patient history and favorable response to ascorbic acid desensitization therapy.


Assuntos
Deficiência de Ácido Ascórbico/complicações , Ácido Ascórbico/efeitos adversos , Toxidermias/etiologia , Fast Foods/efeitos adversos , Escorbuto/etiologia , Pele/patologia , Deficiência de Ácido Ascórbico/tratamento farmacológico , Diagnóstico Diferencial , Toxidermias/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Escorbuto/diagnóstico , Vitaminas/efeitos adversos
7.
Ann Dermatol Venereol ; 142(11): 675-9, 2015 Nov.
Artigo em Francês | MEDLINE | ID: mdl-26363998

RESUMO

BACKGROUND: Scurvy is the classic and most severe form of vitamin C deficiency. This condition has become extremely rare among children in the industrialized countries. PATIENTS AND METHODS: We report the case of two boys presenting bone pain associated with haemorrhagic gingivitis, with perifollicular purpura of the lower limbs in one boy. The children had an unbalanced diet. Scurvy was associated with vitamin D and iron deficiency. The dermatological and radiological abnormalities seen were characteristic and a favourable outcome was rapidly obtained following supplementation. DISCUSSION: The possibility of this forgotten historical illness should not be overlooked in the presence of these dermatological and rheumatologic signs, since this can help avoid unnecessary or excessively aggressive investigations.


Assuntos
Ácido Ascórbico/administração & dosagem , Escorbuto/complicações , Escorbuto/tratamento farmacológico , Vitaminas/administração & dosagem , Anemia Ferropriva/complicações , Ácido Ascórbico/sangue , Criança , Diagnóstico Diferencial , Hemorragia Gengival/etiologia , Humanos , Extremidade Inferior/patologia , Masculino , Púrpura/etiologia , Doenças Raras , Fatores de Risco , Escorbuto/diagnóstico , Índice de Gravidade de Doença , Resultado do Tratamento , Deficiência de Vitamina D/complicações , Vitaminas/sangue
8.
J Clin Rheumatol ; 20(4): 224-8, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24847751

RESUMO

Scurvy is rare in developed countries but is known to cause lower-extremity pain and refusal to ambulate in children. Since the discovery of the link between scurvy and dietary deficiency of ascorbic acid, there has been a substantial decrease in its prevalence and recognition. Here we describe 3 cases of scurvy in young children presenting with difficulty walking. Only 1 of 3 patients had gingival lesions at the initial presentation. Two cases underwent an extensive evaluation for hematologic and rheumatologic diseases before the diagnosis of scurvy was made. Dietary histories eventually revealed that all 3 patients had sharply limited intake of fruits and vegetables secondary to oral aversion, and 1 patient had autism. Radiographic changes of long bones were observed in all patients. Interestingly, all patients had concomitant vitamin D deficiency. After replacement with vitamin C, all patients recovered and started to walk again with improved leg pain. These clinical manifestations and radiologic findings highlight the importance for rheumatologists to have a higher index of suspicion for scurvy in nonambulatory children.


Assuntos
Limitação da Mobilidade , Escorbuto/diagnóstico , Ácido Ascórbico/uso terapêutico , Criança , Pré-Escolar , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Escorbuto/tratamento farmacológico , Caminhada
9.
Aust Fam Physician ; 43(12): 853-5, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25705734

RESUMO

Scurvy was first described by Hippocrates (460-370 BC) as a condition characterised by poor dental health, bruising, bleeding and fragile skin. Despite the widespread availability of foods rich in vitamin C in Australia, scurvy continues to afflict certain high-risk subgroups of the population. Cutaneous signs may be the only manifestation of the disease, as in the case presented below, and therefore scurvy continues to be relevant to dermatologists.


Assuntos
Púrpura/diagnóstico , Escorbuto/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Púrpura/etiologia , Escorbuto/complicações
10.
Pediatr Rheumatol Online J ; 22(1): 56, 2024 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-38760753

RESUMO

BACKGROUND: Vitamin C deficiency, or scurvy, is rare but poses risks for children with poor diets, limited resources, or malabsorption issues. It may also be common in children with restrictive or selective dietary habits in children with global developmental delay, autism spectrum disorder, and physical disabilities. Symptoms include fatigue, irritability, joint and muscle pain, joint swellings, edema, swollen gums, easy bruising, and delayed wound healing. Early recognition and prompt intervention are essential to prevent the progression of symptomatic vitamin C deficiency in children. CASE PRESENTATION: We present a case of a 13-year-old boy with developmental delay secondary to Lennox Gastaut syndrome referred for suspected recurrent, severe, and atypical IgA vasculitis. He presented with irritability, loss of appetite, petechial and ecchymotic lower limb lesions, unilateral gum swelling, severe arthritis, peripheral oedema, severe weight loss, anaemia, and raised inflammatory markers. Multiple investigations were performed before the diagnosis of scurvy was made. A surgical finding of friable gingival tissue with multiple loose teeth, a skin biopsy with follicular hyperkeratosis and extravasated perifollicular red blood cells, and a typical X-ray finding led to the diagnosis of scurvy. CONCLUSION: Scurvy should be given careful consideration as a differential diagnosis in patients presenting with musculoskeletal issues, mucocutaneous complaints, and constitutional symptoms such as malaise, asthenia, irritability, and loss of appetite. A focused and detailed dietary history looking for a lack of good sources of vitamin C can be an easy indicator of this differential. Imaging studies revealing the typical features can also help make the diagnosis. Pathology of the skin revealing pathognomonic features can add to the certainty of the diagnosis. In the absence of all else, the rapid response to treatment with an appropriate dose of vitamin C has a diagnostic and therapeutic role.


Assuntos
Ácido Ascórbico , Escorbuto , Humanos , Escorbuto/diagnóstico , Masculino , Adolescente , Diagnóstico Diferencial , Ácido Ascórbico/uso terapêutico , Vasculite por IgA/diagnóstico
11.
Arch Argent Pediatr ; 122(5): e202310224, 2024 10 01.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-38484185

RESUMO

Scurvy is a disease caused by vitamin C deficiency. Although rare, in recent years, the number of scurvy cases in children with eating disorders has increased. Its manifestations are varied because vitamin C is a cofactor in numerous processes, such as collagen synthesis. The typical skin manifestations include petechiae, bruising, and hyperkeratosis. Mucosal involvement manifests as gingivitis with hypertrophy, bleeding, and loss of teeth. The diagnosis is based on clinical findings and may be confirmed by measuring plasma vitamin C levels. The objective of this study was to describe a cohort of patients diagnosed with scurvy in recent years, its clinical manifestations, and findings in relation to their eating behavior and neurodevelopmental disorders.


El escorbuto es una enfermedad producida por déficit de vitamina C. Aunque es poco frecuente, en los últimos años observamos un incremento de casos en niños con trastornos de la conducta alimentaria. Sus manifestaciones son variadas, ya que esta vitamina actúa como cofactor en numerosos procesos, como la síntesis de colágeno. Las manifestaciones cutáneas características son las petequias, equimosis e hiperqueratosis. El compromiso mucoso se manifiesta como gingivitis con hipertrofia, hemorragias y pérdida de piezas dentarias. El diagnóstico es clínico y puede confirmarse mediante la determinación de la vitamina C plasmática. El objetivo de este trabajo es describir una cohorte de pacientes diagnosticados en los últimos años, manifestaciones clínicas y hallazgos en relación con su conducta alimentaria y trastornos del neurodesarrollo.


Assuntos
Escorbuto , Humanos , Escorbuto/diagnóstico , Escorbuto/complicações , Masculino , Feminino , Criança , Pré-Escolar , Adolescente , Transtornos da Alimentação e da Ingestão de Alimentos/complicações , Transtornos da Alimentação e da Ingestão de Alimentos/etiologia , Preferências Alimentares , Lactente
12.
Rev Prat ; 63(8): 1091-6, 2013 Oct.
Artigo em Francês | MEDLINE | ID: mdl-24298827

RESUMO

Vitamin C is a water soluble vitamin which is mainly fresh fruits and vegetables foodborne. Vitamin C deficiency is most often due to a lack of daily amount. Scurvy is characterized by the occurrence of fatigue, myalgia, arthralgia, purpura, bleeding disorders, and later by dental manifestations. Biological signs are nonspecific: anemia, hypocholesterolemia, hypoalbuminemia. Clinical suspicion is confirmed by the decrease in ascorbic acid level (< 2 mg/L). It must be interpreted in light of the acute phase reactants. The treatment is the administration of 1 g of vitamin C per day for 15 days. Vitamin C depletion (ascorbic acid: 2 to 5 mg/L) could induce long-term complications. The recommended dietary allowance of vitamin C protect from these risks.


Assuntos
Deficiência de Ácido Ascórbico , Ácido Ascórbico/fisiologia , Deficiência de Ácido Ascórbico/complicações , Deficiência de Ácido Ascórbico/diagnóstico , Deficiência de Ácido Ascórbico/epidemiologia , Deficiência de Ácido Ascórbico/terapia , Criança , Progressão da Doença , Humanos , Neoplasias/epidemiologia , Neoplasias/etiologia , Prevalência , Escorbuto/diagnóstico , Escorbuto/epidemiologia , Escorbuto/etiologia , Escorbuto/terapia
13.
Einstein (Sao Paulo) ; 21: eRC0356, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37729311

RESUMO

Despite its rarity, symptomatic micronutrient deficiency remains a public health problem. Scurvy is the differential diagnosis for bleeding disorders and hematological and rheumatological diseases, especially in patients with eating disorders. However, it is unrelated to autism spectrum disorders or other neurodevelopmental disorders. A previously healthy 10-year-old boy living in São Paulo, Brazil, had a history of significant food selectivity unrelated to autism spectrum disorder, resulting in symptomatic ascorbic acid deficiency (scurvy). This resulted in pain and purpuric lesions on the lower limbs, gingival edema, bleeding during tooth brushing, asthenia, weakness, malaise, and sadness. Therefore, dietary anamnesis is important for routine monitoring of child growth and development. This process helps prevent nutritional deficiencies, facilitates early diagnosis of eating disorders, and enables multidisciplinary follow-up for these patients.


Assuntos
Transtorno do Espectro Autista , Desnutrição , Escorbuto , Masculino , Criança , Humanos , Escorbuto/complicações , Escorbuto/diagnóstico , Brasil , Diagnóstico Diferencial
14.
Am J Case Rep ; 24: e940770, 2023 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-37464734

RESUMO

BACKGROUND Despite being considered a disease of the past, pediatric scurvy is increasingly reported in developed countries, especially among children with autism spectrum disorder, developmental delays, or a restrictive diet. Pediatric patients typically present with lower extremity pain or refusal to walk. This case study features an atypical presentation of scurvy in a non-ambulatory patient. CASE REPORT A 14-year-old boy with arthrogryposis multiplex congenita displayed a late-stage scurvy symptom: a necrotic gastrostomy tube site, indicative of poor wound healing due to vitamin C deficiency. The usual telltale symptoms of scurvy were camouflaged due to his non-ambulatory status, which may have contributed to a delayed presentation. Nevertheless, a comprehensive clinical evaluation, incorporating diet history, gingival symptoms, petechiae, and characteristic radiological signs, eventually led to the correct diagnosis. Although acute osteomyelitis was initially suspected, it was subsequently ruled out. Upon initiation of vitamin C therapy, the patient's symptoms subsided within a few days, and the necrotic tissue surrounding the gastrostomy tube healed completely within two weeks. CONCLUSIONS The highlighted case underscores the importance of including scurvy in the differential diagnosis for pediatric patients with lower extremity pain without fever. A detailed dietary history focusing on vitamin C intake is crucial during clinical evaluation. Early initiation of vitamin C therapy, when scurvy is suspected, may prevent unnecessary and extensive diagnostic workup for other potential causes, offering timely relief to the patient.


Assuntos
Transtorno do Espectro Autista , Escorbuto , Masculino , Humanos , Criança , Adolescente , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico , Ácido Ascórbico/uso terapêutico , Gastrostomia , Dor
15.
J Pediatr Endocrinol Metab ; 36(7): 708-711, 2023 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-37193674

RESUMO

OBJECTIVES: Severe vitamin C deficiency, or scurvy, presents as a syndrome of multisystem abnormalities associated with defective collagen synthesis and antioxidative functions. The many clinical features of scurvy lead to frequent misdiagnoses, as they can often point to other diseases, such as vasculitis, venous thrombosis and musculoskeletal disorders. As such, an extensive workup is recommended in cases in which scurvy is suspected. CASE PRESENTATION: A 21-month-old male patient and a 36-month-old female patient presented with difficulty in walking, painful joint movements, irritability, gingival hypertrophy and bleeding. After exhaustive investigations and risky invasive procedures, vitamin C deficiency was diagnosed in both cases, and the symptoms improved dramatically with vitamin C treatment. CONCLUSIONS: The importance of taking a dietary history in pediatric patients is highly recommended. In cases where scurvy is considered, serum ascorbic acid levels should be checked to confirm the diagnosis prior to conducting invasive tests.


Assuntos
Deficiência de Ácido Ascórbico , Escorbuto , Humanos , Masculino , Criança , Feminino , Pré-Escolar , Lactente , Escorbuto/complicações , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico , Ácido Ascórbico/uso terapêutico , Vitaminas/uso terapêutico , Deficiência de Ácido Ascórbico/complicações , Deficiência de Ácido Ascórbico/tratamento farmacológico , Antioxidantes
17.
Klin Padiatr ; 224(7): 448-52, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23070864

RESUMO

Pediatric scurvy is a rare condition characterized by perifollicular petechiae and bruising, hemorrhagic gingivitis and musculoskeletal symptoms, all assumed to be predominantly related to abnormal collagen structure. We report on a 9-year-old autistic boy with vitamin C deficiency due to a highly limited food range presenting with multiple petechiae, gum bleeding and debilitating bone pain, in whom platelet aggregometry revealed a distinctly reduced thrombocyte aggregation, normalizing after vitamin C supplementation. This observation indicates that platelet dysfunction may additionally contribute to the hemorrhagic diathesis in scurvy, and demonstrates that ascorbic acid deficiency should be considered in children with an otherwise unexplained acquired thrombocytopathy.


Assuntos
Agregação Plaquetária/fisiologia , Escorbuto/sangue , Transtorno Autístico/sangue , Transtorno Autístico/complicações , Paralisia Cerebral/sangue , Paralisia Cerebral/complicações , Criança , Contusões/sangue , Contusões/etiologia , Deficiências do Desenvolvimento/sangue , Deficiências do Desenvolvimento/complicações , Diagnóstico Diferencial , Hemorragia Gengival/sangue , Hemorragia Gengival/etiologia , Hematoma/sangue , Hematoma/etiologia , Humanos , Masculino , Agregação Plaquetária/efeitos dos fármacos , Púrpura/sangue , Púrpura/etiologia , Escorbuto/diagnóstico , Escorbuto/tratamento farmacológico
19.
Practitioner ; 256(1755): 23-5, 3, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23214273

RESUMO

Scurvy is caused by prolonged dietary deficiency of vitamin C, the plasma concentration of which appears inversely related to mortality from all causes. Its clinical importance relates principally to its role as a cofactor in a number of enzyme reactions involved in collagen synthesis, dysfunction of which disrupts connective tissue integrity, resulting in impaired wound healing and capillary bleeding. In the UK, overt scurvy is diagnosed only rarely. However, subclinical vitamin C deficiency appears quite common, one study estimated that 25% of men and 16% of women in the low income/materially deprived population had vitamin C deficiency, with smoking a strong predictor. Because many of the early symptoms of vitamin C deficiency (fatigue, malaise, depression and irritability) are non-specific, the diagnostic possibility of scurvy is usually delayed until haemorrhagic manifestations occur. The classical cutaneous features consist of perifollicular purpura, contorted (corkscrew) hairs and follicular hyperkeratosis, particularly affecting the legs. Large areas of purpura or ecchymosis may occur. Swelling and bleeding of the gums is an early mucosal symptom, and progressively severe gum disease causes loss of teeth. Subperiosteal haemorrhage, particularly in the femur and tibia, can present as pain, pseudoparalysis, swelling and discoloration of the legs. Haemorrhage into joints and muscle is very uncomfortable. Diagnosis is generally made on the basis of clinical features, corroborated by a history of dietary inadequacy, and the subsequent rapid resolution of symptoms with the restoration of an adequate vitamin C intake.


Assuntos
Escorbuto/diagnóstico , Escorbuto/fisiopatologia , Adulto , Feminino , Humanos , Masculino , Fatores de Risco , Escorbuto/tratamento farmacológico
20.
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
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