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1.
Eur Arch Otorhinolaryngol ; 276(2): 439-445, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30515608

RESUMO

BACKGROUND: We evaluated taste functions of patients with perennial allergic rhinitis (AR) before and after allergen-specific immunotherapy (AIT). METHODS: The study was designed as a prospective clinical study in our tertiary care hospital. Patients (n = 21) who were diagnosed with perennial AR on the basis of physical examination, skin prick test of at least 3* for HDM allergen and treated with AIT were enrolled in this study. A control group (n = 21) was selected from patients who were given intranasal steroids (INS) for perennial AR. Both groups had self-reported hyposmia and subjective loss of the sense of taste before treatment. Taste strips (Burghart, Wedel, Germany) were used for the taste identification scores before and after 6 months treatment. RESULTS: A total of 42 subjects were included, with a mean age of 24.1 ± 7.9 years (range 15-43 years). Overall, the AIT group showed more of an improvement of taste function, observed in the total average test scores, compared to the INS group (p < 0.05), but no change was detected between the groups before treatment. No difference was found for the bitter taste scores between the study groups (p = 0.053). CONCLUSION: Subcutaneous allergen immunotherapy resulted in more of an improvement in taste function than intranasal steroids. Further studies are needed.


Assuntos
Dessensibilização Imunológica , Rinite Alérgica Perene/terapia , Distúrbios do Paladar/terapia , Adolescente , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Estudos Prospectivos , Rinite Alérgica Perene/complicações , Distúrbios do Paladar/etiologia , Adulto Jovem
2.
J Craniofac Surg ; 30(8): e763-e768, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31348205

RESUMO

BACKGROUND: To validate the repair of frontal sinus cerebrospinal fluid (CSF) leaks with preservation of frontal sinus drainage pathway (FSDP), independently of the approach used, and to establish the indications and limits of the endoscopic approach. METHODS: A retrospective evaluation of patients undergoing surgery for frontal sinus CSF leaks was performed. Demographics, indications for both endoscopic/combined endoscopic and open approaches, complications, methods for maintaining FSDP, and perioperative outcomes were examined. RESULTS: Fifty-three patients (average age 45 years) with frontal sinus CSF leaks were treated surgically from 2000 to 2018. All CSF leak repairs were successful at the 1st attempt with a mean follow-up of 76.8 months (range 4-227 months). Etiology was spontaneous (14), traumatic (26), and iatrogenic (13). In 17 patients, a purely endoscopic approach was performed, while an endoscopic endonasal orbital transposition procedure was added in 4 out of this group. In 23 patients, a combined endoscopic and osteoplastic procedure was employed, while in 13 patients a combined craniotomy and endoscopic procedure was performed. All frontal sinuses remained patent except for 2 cranialization patients. CONCLUSION: With contemporary endoscopic instrumentation and techniques, endoscopic closure of frontal sinus CSF leaks even in the far superolateral wall is feasible in selected patients. However, the surgeon should consider the option of combining an external approach when required. Preserving the FSDP should be the main aim regardless of the approach.


Assuntos
Vazamento de Líquido Cefalorraquidiano/cirurgia , Seio Frontal/cirurgia , Adulto , Idoso de 80 Anos ou mais , Craniotomia , Drenagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neuroendoscopia , Seleção de Pacientes , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos
3.
J Med Virol ; 85(2): 282-7, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23160919

RESUMO

Cervical cancer is the most frequent female malignancy in most developing countries. Previous studies have demonstrated a strong association of human papillomavirus (HPV) infection with dysplasia and carcinoma of the uterine cervix. The objective of this study was to identify the prevailing HPV genotypes responsible for the development of cervical cancer among women in Ethiopia and the Sudan. A molecular characterization of HPV was done on 245 paraffin embedded cervical biopsy samples collected from the two countries. Amplification of HPV and subsequent genotyping was done using SPF10 primers and Line probe assay. Of samples collected from Ethiopian patients, 93% (149/160) and 13% (21/160) had high risk and low risk HPV genotypes, respectively. Among samples collected from the Sudan, 94% (80/85) harbored high risk and 11.7% (10/85) low risk HPV genotypes. Human papillomavirus 16 was the most frequent genotype identified in samples from Ethiopia (91%, 136/149) and the Sudan (82.5%, 66/80). HPV 52, 58, and 18 were the second, third and fourth common genotypes identified in Ethiopia, whereas HPV 18, 45, and 52 were the second, third, and fourth genotypes identified in samples collected from the Sudan. Thus, individuals living in different geographical localities should receive vaccines based on the specific genotypes circulating in the area and a vaccine targeting HPV 16, 18, 45, 52, and 58 may be optimal for the control of cervical cancer in the two countries.


Assuntos
Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/virologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/virologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Etiópia , Feminino , Genótipo , Humanos , Pessoa de Meia-Idade , Papillomaviridae/genética , Parafina , Reação em Cadeia da Polimerase , Prevalência , Sudão , Inclusão do Tecido , Adulto Jovem
4.
Infect Immun ; 80(7): 2436-43, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22547549

RESUMO

Tannerella forsythia is strongly associated with chronic periodontitis, an inflammatory disease of the tooth-supporting tissues, leading to tooth loss. Fusobacterium nucleatum, an opportunistic pathogen, is thought to promote dental plaque formation by serving as a bridge bacterium between early- and late-colonizing species of the oral cavity. Previous studies have shown that F. nucleatum species synergize with T. forsythia during biofilm formation and pathogenesis. In the present study, we showed that coinfection of F. nucleatum and T. forsythia is more potent than infection with either species alone in inducing NF-κB activity and proinflammatory cytokine secretion in monocytic cells and primary murine macrophages. Moreover, in a murine model of periodontitis, mixed infection with the two species induces synergistic alveolar bone loss, characterized by bone loss which is greater than the additive alveolar bone losses induced by each species alone. Further, in comparison to the single-species infection, mixed infection caused significantly increased inflammatory cell infiltration in the gingivae and osteoclastic activity in the jaw bones. These data show that F. nucleatum subspecies and T. forsythia synergistically stimulate the host immune response and induce alveolar bone loss in a murine experimental periodontitis model.


Assuntos
Perda do Osso Alveolar/microbiologia , Perda do Osso Alveolar/patologia , Bacteroidetes/patogenicidade , Fusobacterium nucleatum/patogenicidade , Infecções por Bactérias Gram-Negativas/patologia , Periodontite/microbiologia , Periodontite/patologia , Animais , Coinfecção/microbiologia , Coinfecção/patologia , Modelos Animais de Doenças , Feminino , Infecções por Bactérias Gram-Negativas/microbiologia , Camundongos , Camundongos Endogâmicos BALB C
5.
Am J Rhinol Allergy ; 36(1): 18-24, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33878936

RESUMO

BACKGROUND: Nasoseptal perforation repair is a challenging condition with no standard technique for repair recognized. METHODS: A case series of consecutive patients who underwent nasoseptal perforation repair with an anterior ethmoidal artery flap was conducted. Demographic data, preoperative features of the perforation and postoperative outcomes were analyzed. Closure rate, complications and persistence of nasal symptoms were documented. RESULTS: Thirty-two patients were included in the study. The average perforation diameter was 1.48 cm (range: 0.4-3 cm). Iatrogenic trauma was the most common cause (56% of patients). Nine cases ended up being idiopathic. The overall closure rate was 81%, but 87.5% when perforation had a 2-cm diameter or less. Of the six failures, 2 were due to flap necrosis and 4 to a residual anterior perforation. Despite the persistence, 2 patients solved their symptoms. One patient underwent revision surgery. CONCLUSION: The anterior ethmoidal artery flap is a reliable and minimal invasive technique for closure of symptomatic perforations. For defects larger than 2 cm, a lower success rate and additional reconstructive measures should be considered. Objective questionnaires are needed in order to evaluate functional outcomes.


Assuntos
Perfuração do Septo Nasal , Procedimentos de Cirurgia Plástica , Artérias/cirurgia , Endoscopia , Humanos , Perfuração do Septo Nasal/cirurgia , Septo Nasal/cirurgia , Resultado do Tratamento
6.
J Neurol Surg B Skull Base ; 81(5): 553-561, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33134022

RESUMO

Background Lesions affecting sphenoid sinus lateral recess (SSLR) are difficult to visualize and manipulate through the transnasal routes, especially when the sinus is highly pneumatized. External approaches to this area involve extensive surgery and are associated with significant morbidity. The aims of this study are to present our experience with the endoscopic transpterygoid approach as a method for approaching lesions of the SSLR and to evaluate the outcomes of this procedure. Methods Clinical charts of patients who had lesions in the SSLR and who were treated at our institution from September 1998 to June 2018 were retrospectively reviewed. All these patients were managed by the endoscopic endonasal transpterygoid approach. Results Thirty-nine patients were identified. No cerebrospinal fluid leak recurrences were observed during follow-up (range: 1-19.7 years; median: 2.3 years). Hypoesthesia (temporary, 1; persistent, 4) in the region innervated by the maxillary branch of the trigeminal nerve was detected in five (12.8%) patients, while symptoms due to the Vidian nerve damage (dry eye, 3; dry nasal mucosa, 1) were present in four (10%) patients. Conclusions Although the endoscopic endonasal transpterygoid approach is an excellent corridor for dealing with lesions of the SSLR, limited rate of neurologic and lacrimal complications was observed. Potential morbidity of the intervention should be discussed during preoperative counselling.

7.
Ann Clin Biochem ; 46(Pt 2): 114-6, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19164340

RESUMO

BACKGROUND: Sickle cell disease is a heterogenous disorder characterized by an abnormal haemoglobin and sickling phenomena of red cells. It is prevalent among certain nomadic tribes in Sudan. Painful, aplastic and haemolytic crises mark sickle cell anaemia. Haemoglobin S (HbS) is detected using haemoglobin electrophoresis, iso-electric focusing and/or high-performance liquid chromatography techniques with high sensitivity, but entails cost and expertise. This study aimed to determine the sensitivity, specificity and positive predictive values (PPV) of the ID-particle gel diffusion technique for screening, diagnosis and phenotyping of HbS in patients with a provisional diagnosis of abnormal haemoglobin. METHODS: Following informed consent, 100 sequential individuals who reported to a central referral haemoglobinopathy clinic were enrolled. ID-particle gel diffusion technique was compared with cellulose acetate electrophoresis to determine haemoglobin phenotypes. RESULTS: The ID-particle gel test detected HbAA with 100% sensitivity and 100% specificity. Sensitivity for HbS was 100%, whether as HbSS or as a mixed pattern. HbSS was identified in all cases where this is the only haemoglobin present. Other patterns were detected with <100% specificity and these would require further testing by other means to definitively identify abnormal haemoglobins. CONCLUSIONS: Although the ID-particle technique is a simple and cheap technique with high sensitivity, specificity and PPV compared with cellulose acetate electrophoresis in detecting HbSS, it could not differentiate HbAS from HbSS with high levels of HbF. High environmental temperatures could melt the test microtubes. Cellulose acetate electrophoresis remains the technique of choice for the screening of abnormal haemoglobins in the Sudan.


Assuntos
Hemoglobina Falciforme/análise , Imunodifusão/métodos , Anemia Falciforme/diagnóstico , Anemia Falciforme/genética , Eletroforese em Acetato de Celulose , Feminino , Humanos , Masculino , Sensibilidade e Especificidade , Sudão
8.
World Neurosurg ; 123: 23-28, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30521958

RESUMO

BACKGROUND: The endoscopic endonasal transpterygoid approach is emerging as a valid option for treating selected tumors in the infratemporal fossa. Compared with traditional open approaches, the endoscopic endonasal approach presents more difficulty in controlling bleeding and less choice in surgical instruments for endoscopic tumor dissection, which is often performed with bipolar forceps or steel dissectors. CASE DESCRIPTION: We describe the use of an ultrasonic scalpel device for performing endoscopic endonasal resection of 2 rare infratemporal fossa tumors (mature teratoma and hemangiopericytoma), which has not been reported in the literature so far. We also review the literature on endoscopic ultrasonic scalpel use. CONCLUSIONS: The ultrasonically activated scalpel is a safe, effective and simple to use device, which achieved excellent hemostasis and did not damage adjacent neurovascular structures.


Assuntos
Neoplasias Infratentoriais/terapia , Cirurgia Endoscópica por Orifício Natural/instrumentação , Procedimentos Cirúrgicos Ultrassônicos/instrumentação , Adulto , Calcinose/patologia , Calcinose/terapia , Diagnóstico Diferencial , Desenho de Equipamento , Feminino , Humanos , Neoplasias Infratentoriais/patologia , Imageamento por Ressonância Magnética , Cirurgia Endoscópica por Orifício Natural/métodos , Instrumentos Cirúrgicos , Tomografia Computadorizada por Raios X , Resultado do Tratamento
9.
World Neurosurg ; 128: e409-e416, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31042605

RESUMO

BACKGROUND: Endoscopic endonasal anterior skull base malignant sinonasal tumor resection and reconstruction remains a challenge. We describe our septal flip flap (SFF) reconstruction, a new surgical technique for repairing anterior skull base defects and report our outcomes. METHODS: We retrospectively reviewed the clinical data of 24 patients who underwent skull base reconstruction using a SFF following endoscopic resection with transnasal craniectomy. We raise the SFF from the contralateral nasal septum based on the septal branches of the anterior and posterior ethmoidal arteries; the SFF is then rotated laterally for anterior skull base reconstruction after transnasal resection with craniectomy. RESULTS: The SFF was used for multiple tumor types including, most commonly, intestinal-type adenocarcinoma, followed by olfactory neuroblastoma, squamous cell carcinoma, sinonasal undifferentiated carcinoma, and other types. All of the cases had either preoperative or postoperative radiation therapy. All flaps remained viable postoperatively. Postoperatively, nasal crusting was significantly reduced with faster healing of the surgical cavity. CONCLUSIONS: The SFF adds to the clinical armamentarium the opportunity to provide vascularized mucosal coverage extending from the frontal recess back to the planum sphenoidalis. The use of SFF requires careful consideration when dealing with paranasal sinus cancers so as not to infringe oncologic principles.


Assuntos
Septo Nasal/cirurgia , Neoplasias Nasais/cirurgia , Neoplasias dos Seios Paranasais/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Base do Crânio/cirurgia , Retalhos Cirúrgicos , Adenocarcinoma/cirurgia , Adolescente , Adulto , Idoso , Carcinoma/cirurgia , Craniotomia/métodos , Estesioneuroblastoma Olfatório/cirurgia , Feminino , Humanos , Masculino , Neoplasias do Seio Maxilar/cirurgia , Pessoa de Meia-Idade , Cavidade Nasal/cirurgia , Cirurgia Endoscópica por Orifício Natural/métodos , Neuroendoscopia/métodos , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço/cirurgia , Adulto Jovem
10.
Trans R Soc Trop Med Hyg ; 102(1): 58-63, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17963805

RESUMO

Post-kala-azar dermal leishmaniasis (PKDL) is a recognized dermatosis that follows successful treatment of visceral leishmaniasis in the Sudan. This randomized and double-blind study aimed to assess safety, immunogenicity and curative potentials of a novel immunochemotherapy regimen in patients with persistent PKDL. Following informed consent, 30 patients were randomized to receive alum-precipitated autoclaved Leishmania major (Alum/ALM) vaccine+Bacille Calmette-Guérin (BCG) and sodium stibogluconate (SSG) or vaccine diluent and SSG. The SSG+Alum/ALM+BCG proved safe with minimal local adverse events. In the SSG+vaccine group, 87% of the patients were cured by day 60 compared with 53% in the SSG alone group (SSG+vaccine efficacy=71%, 95% CI for risk ratio 0.7-1.16). On day 90 of follow-up there were two relapses in the SSG alone arm and none in the SSG+vaccine arm. Pre-treatment cytokines showed high IFN-gamma or high IFN-gamma/IL-10 levels and leishmanin skin test (LST) non-reactivity, while healing/clinical improvement were associated with LST reactivity and low IFN-gamma levels in both study groups (P=0.004). In conclusion, SSG+Alum/ALM+BCG is safe and immunogenic with significant healing potentials in persistent PKDL lesions. Immunochemotherapy probably augmented IFN-gamma production, which induced healing. Leishmanin skin reactivity is a good surrogate marker of cure in persistent PKDL lesions.


Assuntos
Gluconato de Antimônio e Sódio/uso terapêutico , Antiprotozoários/uso terapêutico , Vacina BCG/imunologia , Vacinas contra Leishmaniose/imunologia , Leishmaniose Visceral/prevenção & controle , Adolescente , Adulto , Criança , Método Duplo-Cego , Feminino , Humanos , Interferon gama/sangue , Interleucina-10/sangue , Leishmaniose Visceral/imunologia , Masculino , Pessoa de Meia-Idade , Estatística como Assunto , Sudão , Resultado do Tratamento , Vacinas Combinadas
11.
Saudi Med J ; 29(6): 904-6, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18521476

RESUMO

Histoplasmosis is a fungal infection caused by Histoplasma capsulatum. In the normal individual, both disseminated histoplasmosis and symptomatic adrenal histoplasmosis are rare. Herein, we describe the case of a 50-year-old gentleman residing in western Sudan who presented with a 7-month history of generalized body weakness, easy fatigue, and frequent attacks of vomiting and diarrhea. Physical examination and laboratory investigations confirmed the diagnosis of Addison's disease due to Histoplasma capsulatum var duboisii infection of the adrenal glands. He was treated with intravenous hydrocortisone, followed by oral prednisolone and itraconazole.


Assuntos
Doença de Addison/etiologia , Doenças das Glândulas Suprarrenais/complicações , Histoplasmose/complicações , Histoplasma , Humanos , Masculino , Pessoa de Meia-Idade
12.
Ann Otol Rhinol Laryngol ; 127(11): 841-847, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30198302

RESUMO

OBJECTIVE: We investigated the relationship between paravertebral muscle cross-sectional area (PVM CSA) at the third vertebra (C3) level using computerized tomography (CT) neck images and its relationship with complications after total laryngectomy. DESIGN: Retrospective analysis of 60 advanced laryngeal cancer patients who underwent total laryngectomy was performed. The cross-sectional areas of paravertebral neck muscles using neck CT at C3 level images obtained preoperatively were analyzed. RESULTS: A significant difference in PVM CSA between complication and no complication groups, F(1, 53 = 4.319, P = .043), was identified by ANCOVA. There were no significant differences in between-subject effects: T-stage ( F = 1.652, P = .204), body mass index ( F = 0.889, P = .35), albumin ( F = .359, P = .552), age ( F = 1.623 P = .208), and smoking ( F = 4.319, P = .41). CONCLUSION: The PVM CSA measured at C3 level on pretreatment CT may help identify patients at higher risk of postoperative wound complications after total laryngectomy and who may particularly benefit from preoperative optimization of nutritional status.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Neoplasias Laríngeas/cirurgia , Laringectomia/efeitos adversos , Músculos do Pescoço/patologia , Complicações Pós-Operatórias/etiologia , Idoso , Carcinoma de Células Escamosas/diagnóstico por imagem , Carcinoma de Células Escamosas/patologia , Vértebras Cervicais , Feminino , Humanos , Neoplasias Laríngeas/diagnóstico por imagem , Neoplasias Laríngeas/patologia , Masculino , Pessoa de Meia-Idade , Músculos do Pescoço/diagnóstico por imagem , Estadiamento de Neoplasias , Complicações Pós-Operatórias/diagnóstico , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
13.
Electron Physician ; 9(7): 4708-4717, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28894525

RESUMO

BACKGROUND: Cancer stem cells (CSCs) play a critical role in tumor development, progression, metastasis and recurrence. AIM: To evaluate hepatic expression of CD44 and CD133 in Egyptian patients with HCV-induced chronic liver diseases and hepatocellular carcinomas (HCCs), and to assess its correlation with inflammatory activity scores, stages of fibrosis (in chronic hepatitis with or without cirrhosis) and grades of HCC. METHODS: This prospective case-control study was conducted on eighty subjects who attended the Tropical Diseases Department, Al-Azhar University Hospital, and in collaboration with Theodor Bilharz Research Institute (2014-2016). They were divided as follows: A) Control healthy group: Ten individuals with serologically negative HCV-Ab and HBsAg, and histopathologically normal liver, B) Seventy patients subdivided into 3 groups; Twenty subjects each, as: HCV-Ab+ non-cirrhotic, HCV-Ab+ cirrhotic and HCC. Necroinflammatory activity and fibrosis in non-neoplastic liver biopsies were scored according to the METAVIR scoring system. CD44 and CD133 immunostaining was evaluated in all groups semi-quantitatively using H score. Statistical analysis was performed by SPSS version 22, using independent-samples t-test. RESULTS: Our study showed a significant increase of mean CD44 & CD133 expression values with disease progression among the groups (p<0.05). Their expressions increased significantly with the inflammatory activity scores and stages of fibrosis, reaching the highest values in A3F4 score compared to A1F1 (p<0.05). Moreover, there was a significant increase of their expressions across HCC grades (p<0.05), however with no significant correlation with focal lesions size. CONCLUSION: CSCs clusters exhibiting CD133+ and/or CD44+ profiles were identified in chronic hepatitis, liver cirrhosis and HCC. CD133 and CD44 expressions significantly corresponded to the increased inflammatory activity, fibrosis stages and higher tumor grades. Therefore, evaluation of CD44 and CD133 expression profiles as CSCs markers in non-neoplastic liver and HCCs can help in development of novel therapeutic agents for HCC targeting and prevention.

15.
PLoS Negl Trop Dis ; 9(3): e0003587, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25768090

RESUMO

Mycetoma is a unique neglected tropical disease which is endemic in what is known as the "mycetoma belt". The disease has many devastating impacts on patients and communities in endemic area and is characterised by massive deformity, destruction and disability. Mycetoma is commonly seen in the foot and hand and less frequent in other parts of the body. Mycetoma of the head and neck is a rarity and is associated with high morbidity and even mortality if not treated early. In this communication we report on 49 patients with head and neck mycetoma followed up at the Mycetoma Research Centre in Khartoum. Most of the reported patients had actinomycetoma and the majority were young adult males from mycetoma endemic areas in the Sudan. Most of them were students, farmers and workers. Prior to presentation the majority had long disease duration and the cause was multifactorial. Advanced disease with massive lesion, deformity and disability was the common presentation. There was no obvious history of local trauma, familial tendency or other predisposing factor identified in this group of patients. MRI and CT scan were the most accurate diagnostic tools to determine the disease extent. The treatment outcome was rather poor and characterised by low cure rate, poor outcome and high follows-up dropout. Such a gloomy outcome calls for structured and objective health education programs.


Assuntos
Micetoma/patologia , Adolescente , Adulto , Idoso , Biópsia por Agulha Fina , Criança , Feminino , Cabeça , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Micetoma/etiologia , Micetoma/terapia , Pescoço , Resultado do Tratamento
16.
PLoS Negl Trop Dis ; 9(3): e0003679, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25816316

RESUMO

This communication reports on the Mycetoma Research Centre of the University of Khartoum, Sudan experience on 6,792 patients seen during the period 1991-2014.The patients were predominately young (64% under 30 years old) males (76%). The majority (68%) were from the Sudan mycetoma belt and 28% were students. Madurella mycetomatis eumycetoma was the most common type (70%). In 66% of the patients the duration of the disease was less than five years, and 81% gave a history of sinuses discharging mostly black grains (78%). History of trauma at the mycetoma site was reported in 20%. Local pain was reported in 27% of the patients, and only 12% had a family history of mycetoma. The study showed that 57% of the patients had previous surgical excisions and recurrence, and only 4% received previous medical treatment for mycetoma. Other concomitant medical diseases were reported in 4% of the patients. The foot (76%) and hand (8%) were the most commonly affected sites. Less frequently affected sites were the leg and knee (7%), thigh (2%), buttock (2%) and arm and forearm (1%). Rare sites included the chest wall, head and neck, back, abdominal wall, perineum, oral cavity, tongue and eye. Multiple sites mycetoma was recorded in 135 (2%) of cases. At presentation, 37% of patients had massive lesions, 79% had sinuses, 8% had local hyper-hydrosis at the mycetoma lesion, 11% had regional lymphadenopathy, while 6% had dilated tortuous veins proximal to the mycetoma lesions. The diagnosis of mycetoma was established by combined imaging techniques and cytological, histopathological, serological tests and grain culture. Patients with actinomycetoma received a combination of antimicrobial agents, while eumycetoma patients received antifungal agents combined with various surgical excisions. Surgical excisions in the form of wide local excision, debridement or amputation were done in 807 patients, and of them 248 patients (30.7%) had postoperative recurrence. Different types of amputations were done in 120 patients (1.7%).


Assuntos
Madurella , Micetoma/tratamento farmacológico , Micetoma/epidemiologia , Micetoma/cirurgia , Adulto , Animais , Antifúngicos/uso terapêutico , Desbridamento/métodos , Extremidades/patologia , Feminino , Humanos , Masculino , Seios Paranasais/patologia , Recidiva , Sudão/epidemiologia
17.
Eur J Hum Genet ; 12(1): 66-74, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14523377

RESUMO

Genetic susceptibility to visceral leishmaniasis (VL) is indicated by differences in incidence and clinical phenotypes between ethnic groups in Sudan. In mice, innate susceptibility to Leishmania donovani, the etiological agent of VL, is controlled by Slc11a1 (formerly Nramp1). We therefore examined polymorphisms at SLC11A1 in 59 multicase families of VL from the high-incidence Masalit tribe in Sudan. Multipoint nonparametric analysis in ALLEGRO shows a significant linkage across SLC11A1 (Zlr scores 2.38-2.55; 0.008< or =P< or =0.012; information content 0.88). The extended transmission disequilibrium test shows biased transmission of alleles at 5' polymorphisms in the promoter (P=0.0145), exon 3 (P=0.0037) and intron 4 (P=0.0049), and haplotypes formed by them (P=0.0089), but not for 3' polymorphisms at exon 15 or the 3'UTR. Stepwise logistic regression analysis using a case/pseudo-control data set derived from the 59 families was consistent with main effects contributed by the intron 4 469+14G/C polymorphism. Although the two alleles for 469+14G/C lie on haplotypes carrying different alleles for the functional promoter GTn polymorphism, the latter did not itself contribute separate main effects. Sequence analysis of 36 individuals failed to identify new putative functional polymorphisms in the coding region, intron 1, intron/exon boundaries, intron 4/exon 4a, or in the 3'UTR. One novel promoter polymorphism (-86G/A) was located within a putative nuclear factor kappa B binding site that could be functional. Further work will determine whether additional polymorphisms occur upstream in the promoter, which could be in linkage disequilibrium with the intron 4 polymorphism. These studies contribute to knowledge of the role of SLC11A1 in infectious disease.


Assuntos
Proteínas de Transporte de Cátions/genética , Suscetibilidade a Doenças , Leishmaniose Visceral/imunologia , Análise de Variância , Frequência do Gene , Ligação Genética , Marcadores Genéticos , Haplótipos , Humanos , Desequilíbrio de Ligação , Polimorfismo de Nucleotídeo Único , Análise de Sequência de DNA , Sudão
18.
Trans R Soc Trop Med Hyg ; 96(5): 565-7, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12474491

RESUMO

The leishmanin skin test (LST) is used in immunogenicity studies. The effect of multiple LSTs on immune responses was assessed. None of the volunteers converted to LST positive. IFN-gamma and IL-10 levels remained unchanged. Repetition of LST does not modulate the in vivo or in vitro immune responses to Leishmania antigen.


Assuntos
Antígenos de Protozoários/imunologia , Leishmania/imunologia , Leishmaniose/imunologia , Animais , Humanos , Testes Cutâneos/métodos , Sudão
19.
PLoS Negl Trop Dis ; 8(1): e2613, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24454970

RESUMO

BACKGROUND: Anti-leishmanial drug regimens that include a single dose AmBisome could be suitable for eastern African patients with symptomatic visceral leishmaniasis (VL) but the appropriate single dose is unknown. METHODOLOGY: A multi-centre, open-label, non-inferiority, randomized controlled trial with an adaptive design, was conducted to compare the efficacy and safety of a single dose and multiple doses of AmBisome for the treatment of VL in eastern Africa. The primary efficacy endpoint was definitive cure (DC) at 6 months. Symptomatic patients with parasitologically-confirmed, non-severe VL, received a single dose of AmBisome 7.5 mg/kg body weight or multiple doses, 7 times 3 mg/kg on days 1-5, 14, and 21. If interim analyses, evaluated 30 days after the start of treatment following 40 or 80 patients, showed the single dose gave significantly poorer parasite clearance than multiple doses at the 5% significance level, the single dose was increased by 2·5 mg/kg. In a sub-set of patients, parasite clearance was measured by quantitative reverse transcriptase (qRT) PCR. PRINCIPAL FINDINGS: The trial was terminated after the third interim analysis because of low efficacy of both regimens. Based on the intention-to-treat population, DC was 85% (95%CI 73-93%), 40% (95%CI 19-64%), and 58% (95%CI 41-73%) in patients treated with multiple doses (n = 63), and single doses of 7·5 (n = 21) or 10 mg/kg (n = 40), respectively. qRT-PCR suggested superior parasite clearance with multiple doses as early as day 3. Safety data accorded with the drug label. CONCLUSIONS: The tested AmBisome regimens would not be suitable for VL treatment across eastern Africa. An optimal single dose regimen was not identified. TRIALS REGISTRATION: www.clinicaltrials.govNCT00832208.


Assuntos
Anfotericina B/administração & dosagem , Anfotericina B/efeitos adversos , Antiprotozoários/administração & dosagem , Antiprotozoários/efeitos adversos , Leishmaniose Visceral/tratamento farmacológico , Adolescente , Adulto , África Oriental , Criança , Pré-Escolar , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Humanos , Masculino , Carga Parasitária , Reação em Cadeia da Polimerase em Tempo Real , Resultado do Tratamento , Adulto Jovem
20.
PLoS Negl Trop Dis ; 8(10): e3271, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25356640

RESUMO

Patients with mycetoma usually present late with advanced disease, which is attributed to lack of medical and health facilities in endemic areas, poor health education and low socio-economic status. With this background, an integrated patient management model at the village level was designed to address the various problems associated with mycetoma. The model was launched in an endemic village in the Sudan, between 2010 and 2013. This model is described in a prospective, descriptive, community-based study, aimed to collect epidemiological, ecological, and clinical data and to assess knowledge, attitude and practice (KAP) in order to design effective and efficient management measures. In this study, the prevalence of mycetoma was 14.5 per 1,000 inhabitants. The patients were farmers, housewives and children of low socio-economic status, and no obvious risk group was detected. All had surgery performed in a mobile surgical unit in the village which encouraged patients to present early with small early lesion leading to a good clinical outcome. The close contact with the Acacia tree thorns, animals and animal dung, walking bare footed and practising poor hygiene may all have contributed to the development of mycetoma in the village. Knowledge of mycetoma was poor in 96.3% of the study population, 70% had appropriate attitudes and beliefs towards interaction with mycetoma patients and treatment methods, and 49% used satisfactory or good practices in the management of mycetoma. Knowledge and practices on mycetoma were found to be significantly associated with age. Based on the KAP and epidemiological data, several health education sessions were conducted in the village for different target groups. The integrated management approach adopted in this study is unique and appeared successful and seems suitable as an immediate intervention. While for the longer term, establishment of local health facilities with trained health staff remains a priority.


Assuntos
Micetoma/terapia , Adolescente , Adulto , Idoso , Criança , Ecossistema , Feminino , Educação em Saúde , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Micetoma/epidemiologia , Micetoma/etiologia , Estudos Prospectivos , Sudão
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