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1.
Sensors (Basel) ; 23(13)2023 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-37447917

RESUMO

Lumbar puncture is a minimally invasive procedure that utilizes a spinal needle to puncture the lumbar epidural space to take a sample from the cerebrospinal fluid or inject drugs for diagnostic and therapeutic purposes. Physicians rely on their expertise to localize epidural space. Due to its critical procedure, the failure rate can reach up to 28%. Hence, a high level of experience and caution is required to correctly insert the needle without puncturing the dura mater, which is a fibrous layer protecting the spinal cord. Failure of spinal anesthesia is, in some cases, related to faulty needle placement techniques since it is blindly inserted. Therefore, advanced techniques for localization of the epidural space are essential to avoid any possible side effects. As for epidural space localization, various ideas were carried out over recent years to provide accurate identification of the epidural space. Subsequently, several methodologies based on mechanical and optical schemes have been proposed. Several research groups worked from different aspects of the problem, namely, the clinical and engineering sides. Hence, the main goal of this paper is to review this research with the aim of remedying the gap between the clinical side of the problem and the engineering side by examining the main techniques in building sensors for such purposes. This manuscript provides an understanding of the clinical needs of spinal needles from an anatomical point of view. Most importantly, it discusses the mechanical and optical approaches in designing and building sensors to guide spinal needles. Finally, the standards that must be followed in building smart spinal needles for approval procedures are also presented, along with some insight into future directions.


Assuntos
Anestesia Epidural , Raquianestesia , Agulhas/efeitos adversos , Punção Espinal/efeitos adversos , Punção Espinal/métodos , Raquianestesia/efeitos adversos , Raquianestesia/métodos , Sistema Nervoso Central
2.
Pak J Pharm Sci ; 32(5): 1927-1932, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31813854

RESUMO

The hepatoprotective effects of Boerhaavia diffusa was studied against the hepatotoxicity induced by oxaliplatin. Male Wistar rats were divided in three groups.Group N* control group (0.9% normal saline), Group NP0 oxaliplatin treated group and Group NP2 were prophylactically treated with Boerhaavia diffusa and then with oxaliplatin in order to assess the protective effects of Boerhaavia diffusa against the toxicity of oxaliplatin. The levels of liver enzymes ALT, AST and γ-GT were significantly reduced in the group prophylactically treated with Boerhaavia diffusa (NP2) compared with the group treated with oxaliplatin (NP0). Boerhaavia diffusa was effective in reducing risk of hypercholestremia associated with oxaliplatin. Histopathological examination of rat liver revealed that prophylactically treated group with Boerhaavia diffusa was effective in reducing oxidative stress induced steatohepatitis by oxaliplatin.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Fígado/efeitos dos fármacos , Nyctaginaceae/química , Oxaliplatina/farmacologia , Extratos Vegetais/farmacologia , Substâncias Protetoras/farmacologia , Animais , Masculino , Estresse Oxidativo/efeitos dos fármacos , Fitoterapia/métodos , Ratos , Ratos Wistar
3.
Pak J Pharm Sci ; 31(1(Suppl.)): 269-275, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29386154

RESUMO

Among the well-known Health care-associated infections (HAIs), surgical site infections (SSIs) contribute to considerable high mortality and morbidity rate, substantial prolongation in hospitalization period and extra expenses in terms of treatment cost. This study was aimed to evaluate the predictive variables associated with surgical site infections, and their clinical consequences. This was a prospective, cross sectional study conducted in the surgical department of tertiary care setting in Karachi, Pakistan. Each patient was followed up from the time of admission until time of the discharge postoperatively for 30 days. A total of 554 surgical procedures were performed and 81 SSIs were identified. The predictor variable/risk factors significantly associated with the presence of SSI were age, gender, BMI, ASA score, co-morbid condition, surgical wound class, emergency surgeries, duration of surgery, type of anesthesia, prosthetic implant, pre operative length of stay and pre operative blood transfusion. Outcomes of such studies may be utilized in the design of a multi factorial practice to get better patient's safety and clinical outcomes.


Assuntos
Infecção da Ferida Cirúrgica/epidemiologia , Infecção da Ferida Cirúrgica/etiologia , Adulto , Idoso , Anestesia/métodos , Índice de Massa Corporal , Comorbidade , Estudos Transversais , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Mortalidade , Paquistão/epidemiologia , Prevalência , Estudos Prospectivos , Fatores de Risco , Atenção Terciária à Saúde/estatística & dados numéricos
4.
Nat Genet ; 39(9): 1092-9, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17694054

RESUMO

Interactions of killer cell immunoglobulin-like receptors (KIRs) with major histocompatibility complex (MHC) class I ligands diversify natural killer cell responses to infection. By analyzing sequence variation in diverse human populations, we show that the KIR3DL1/S1 locus encodes two lineages of polymorphic inhibitory KIR3DL1 allotypes that recognize Bw4 epitopes of protein">HLA-A and HLA-B and one lineage of conserved activating KIR3DS1 allotypes, also implicated in Bw4 recognition. Balancing selection has maintained these three lineages for over 3 million years. Variation was selected at D1 and D2 domain residues that contact HLA class I and at two sites on D0, the domain that enhances the binding of KIR3D to HLA class I. HLA-B variants that gained Bw4 through interallelic microconversion are also products of selection. A worldwide comparison uncovers unusual KIR3DL1/S1 evolution in modern sub-Saharan Africans. Balancing selection is weak and confined to D0, KIR3DS1 is rare and KIR3DL1 allotypes with similar binding sites predominate. Natural killer cells express the dominant KIR3DL1 at a high frequency and with high surface density, providing strong responses to cells perturbed in Bw4 expression.


Assuntos
População Negra/genética , Receptores KIR3DL1/genética , Receptores KIR3DS1/genética , Seleção Genética , Alelos , Sequência de Aminoácidos , Sítios de Ligação/genética , Frequência do Gene , Genética Populacional , Antígenos HLA-B/química , Antígenos HLA-B/genética , Humanos , Desequilíbrio de Ligação , Dados de Sequência Molecular , Filogenia , Polimorfismo Genético , Estrutura Terciária de Proteína , Receptores KIR3DL1/química , Receptores KIR3DS1/química , Homologia de Sequência de Aminoácidos
5.
Pak J Med Sci ; 32(2): 385-8, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27182245

RESUMO

OBJECTIVE: To study the diagnostic accuracy of Ultrasound B scan using 10 MHz linear probe in ocular trauma. METHODS: A total of 61 patients with 63 ocular injuries were assessed during July 2013 to January 2014. All patients were referred to the department of Radiology from Emergency Room since adequate clinical assessment of the fundus was impossible because of the presence of opaque ocular media. Based on radiological diagnosis, the patients were provided treatment (surgical or medical). Clinical diagnosis was confirmed during surgical procedures or clinical follow-up. RESULTS: A total of 63 ocular injuries were examined in 61 patients. The overall sensitivity was 91.5%, Specificity was 98.87%, Positive predictive value was 87.62 and Negative predictive value was 99%. CONCLUSION: Ultrasound B-scan is a sensitive, non invasive and rapid way of assessing intraocular damage caused by blunt or penetrating eye injuries.

6.
J Ayub Med Coll Abbottabad ; 27(2): 458-63, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26411139

RESUMO

Role of vitamin D in the health of bones has been well established for over decades; It was known that its deficiency caused rickets in children and osteomalacia in adults. Later it was discovered that these can be corrected by giving vitamin D. Researchers discovered that vitamin D can be synthesized by exposure to sun. Hence it was also named "the sunshine vitamin". As time passed it was observed that low levels of vitamin D were associated with multiple diseases. This sparked the interest of the scientific community to further the research on vitamin D which led to the studies that started associating vitamin D with various diseases like cancers (prostate, colon and breast), autoimmune diseases (rheumatoid arthritis), infectious diseases (tuberculosis, hepatitis B, hepatitis C, HIV), cardiovascular diseases, mental illnesses (schizophrenia), diabetes mellitus (type 1, type 2 and gestational) and allergic conditions like asthma. With time, more studies were carried out relating levels of vitamin D to development of asthma, asthma exacerbations and risk factors leading to development of asthma like respiratory tract infections with positive associations. A number of studies were carried out which tried to explain the possible molecular mechanisms relating deficiency of vitamin D in pathogenesis of asthma. This review summarizes the role of vitamin D in development of asthma and probable mechanisms relating vitamin D to the pathogenesis of asthma.


Assuntos
Asma , Deficiência de Vitamina D/complicações , Adulto , Asma/diagnóstico , Asma/epidemiologia , Asma/etiologia , Criança , Saúde Global , Humanos , Incidência , Fatores de Risco , Índice de Gravidade de Doença
7.
Mod Rheumatol ; 23(4): 705-8, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22797949

RESUMO

OBJECTIVES: Our aim was to determine the frequency of restless leg syndrome (RLS) in rheumatoid arthritis (RA) patients from a low socioeconomic area of Pakistan and compare results with a control group to evaluate the effect of variables on RLS patients. METHODS: A clinical observational study was carried out on 240 RA patients form low socioeconomic group. Controls (n = 210) were frequency-matched by age group to the RA patients. We evaluated the presence of RLS and collected information on characteristics believed to be correlated with RLS in the general population. Multiple logistic regression models were used to study the association between RLS and other risk factors such as age, smoking status, and obesity. RESULTS: Among all rheumatic patients seen at our rheumatology clinic, 70.8% were women. Our study shows that 20% of RA patients were suffering from RLS compared with 10% of the control group with other rheumatic diseases. Multivariate logistic regression adjusted for age, obesity, and smoking also showed that women with RA were more likely to have RLS than control patients. RLS was also significantly associated with increasing age, high body mass index, and smoking status. CONCLUSIONS: Approximately 20% of RA patients were suffering from RLS. Hence, there is need of increase awareness of RLS among rheumatologists to enhance early RLS diagnosis and appropriate management of this treatable condition.


Assuntos
Artrite Reumatoide/complicações , Síndrome das Pernas Inquietas/complicações , Adulto , Idoso , Índice de Massa Corporal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Síndrome das Pernas Inquietas/diagnóstico , Fatores de Risco , Classe Social , Fatores Socioeconômicos , Inquéritos e Questionários
8.
SAGE Open Med Case Rep ; 11: 2050313X231195964, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37654544

RESUMO

Familial Mediterranean fever is a rare autosomal recessive autoinflammatory disorder prevalent in Middle Eastern populations, characterized by episodic abdominal pain. This case report presents a 34-year-old Egyptian man with severe lower abdominal pain, chest discomfort, and joint pain, along with a positive family history of familial Mediterranean fever but had no previous personal history of this condition. Blood work revealed leukocytosis with neutrophilia and elevated C-reactive protein and erythrocyte sedimentation rate. The patient received intravenous fluids, antiemetics, and analgesics before further evaluation. Diagnosis of familial Mediterranean fever relies on clinical symptoms, ethnic origin, and family history, supported by specific criteria. Typical familial Mediterranean fever attacks involve serositis-induced pain, recurrent episodes, short-duration fever (12 h to 3 days), and arthritis. Familial Mediterranean fever may mimic other acute abdominal conditions, warranting consideration, particularly in individuals from Mediterranean regions. Genetic testing is valuable in confirming familial Mediterranean fever diagnosis.

9.
Patient Relat Outcome Meas ; 14: 87-96, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37152069

RESUMO

Introduction: Atherosclerotic Cardiovascular Disease (ASCVD) is the leading cause of death worldwide. In Diabetics, ASCVD is associated with poor prognosis and a higher case fatality rate compared with the general population. Sub-Saharan Africa is facing an epidemiological transition with ASCVD being prevalent among young adults. To date, over 20 million people have been living with DM in Africa, Tanzania being one of the five countries in the continent reported to have a higher prevalence. This study aimed to identify an individual's 10-year ASCVD absolute risk among a diabetic cohort in Tanzania and define contextual risk enhancing factors. Methods: A prospective observational study was conducted at the Aga Khan hospital, Mwanza, for a period of 8 months. The hospital is a 42-bed district-level hospital in Tanzania. Individuals 10-year risk was calculated based on the ASCVD 2013 risk calculator by ACC/AHA. Pearson's chi-square or Fischer's exact test was used to compare categorical and continuous variables. Multivariable analysis was applied to determine contextual factors for those who had a high 10-year risk of developing ASCVD. Results: The overall cohort included 573 patients. Majority of the individuals were found to be hypertensive (n = 371, 64.7%) and obese (n = 331, 58%) having a high 10-year absolute risk (n = 343, 60%) of suffering ASCVD. The study identified duration of Diabetes Mellitus (>10 years) (OR 8.15, 95% CI 5.25-14.42), concomitant hypertension (OR 1.82 95% CI 1.06-3.06), Diabetic Dyslipidemia (OR 1.44, 95% CI 1.08-1.92) and deranged serum creatinine (OR 1.03, 95% CI 1.02-1.03) to be the risk enhancing factors amongst our population. Conclusion: The study confirms the majority of diabetic individuals in the lake region of Tanzania to have a high 10-year ASCVD risk. The high prevalence of obesity, hypertension and dyslipidemia augments ASCVD risk but provides interventional targets for health-care workers to decrease these alarming projections.

10.
Patient Relat Outcome Meas ; 14: 383-392, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38089710

RESUMO

Introduction: Despite the implementation of complex interventions, ICU mortality remains high and more so in developing countries. The demand for critical care in Sub-Saharan Africa is more than ever before as the region experiences a double burden of rising rates of non-communicable diseases (NCD) in the background battle of combating infectious diseases. Limited studies in Tanzania have reported varying factors associated with markedly high rates of ICU mortality. Investigating the burden of ICU care remains crucial in providing insights into the effectiveness and challenges of critical care delivery. Material and Methods: A single-center retrospective study that reviewed records of all medically admitted patients admitted to the ICU of the Aga Khan Hospital, Dar-es-Salaam, from 1st October 2018 to 30th April 2023. To define the population in the study, we used descriptive statistics. Patients' outcomes were categorized based on ICU survival. Binary logistic regression was run (at 95% CI and p-value < 0.05) to identify the determinants for ICU mortality. Results: Medical records of 717 patients were reviewed. The cohort was male (n=472,65.8%) and African predominant (n=471,65.7%) with a median age of 58 years (IQR 45.0-71.0). 17.9% of patients did not survive. The highest mortality was noted amongst patients with septic shock (29.3%). The lowest survival was noted amongst patients requiring three organ support (n=12,2.1%). Advanced age (OR 1.02,CI 1.00-1.04), having more than three underlying comorbidities (OR 2.50,CI 1.96-6.60), use of inotropic support (OR 3.58,CI 1.89-6.80) and mechanical ventilation (OR 9.11,CI 4.72-18.11) showed association with increased risk for mortality in ICU. Conclusion: The study indicated a much lower ICU mortality rate compared to similar studies conducted in other parts of Sub-Saharan Africa. Advanced age, underlying multiple comorbidities and organ support were associated with ICU mortality. Large multi-center studies are needed to highlight the true burden of critical care illness in Tanzania.

11.
Environ Sci Pollut Res Int ; 29(42): 63605-63621, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35460481

RESUMO

The postmodernism stance critiques the current discourse of modern consumption-based societies. These societies legitimize their embedded beliefs and actions based on their lifestyle reflected through their consumption patterns. Their consumption patterns relate to carbon footprints that are yet to be explored in the current body of knowledge at the macro level. The legitimacy of their lifestyle and consumption patterns rely on their conscious efforts in reducing carbon footprints. This study uses the environmental Kuznets curve model and explores the impact of household lifestyle and household consumption patterns on CO2 emissions across different cultures and societies worldwide. 49 countries were taken to assess how different cultures define consumption patterns related to CO2 emission. The results showed that the curvilinear relationship between consumption and CO2 depends on the country's national cultural orientation.


Assuntos
Dióxido de Carbono , Desenvolvimento Econômico , Carbono , Dióxido de Carbono/análise , Modelos Teóricos
12.
PLoS One ; 17(3): e0265757, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35349596

RESUMO

Globalization boosts the process of market predictions in the pursuit of economic growth. When economic, political, and social forces gain traction by promoting policies and the climate favoring globalization, entrepreneurial results reach out. Policymakers are still searching for a context within which regional policies can be structured to foster long-term entrepreneurship opportunities. The literature on entrepreneurial phenomena is incomplete and uncertain as to how globalization forces establish a nonlinear mechanism to promote the entrepreneurial process. This study provides the basic context for identifying globalization forces to create a nonlinear effect on the entrepreneurial process in order to address this problem. The results propose that policymakers strengthen the social and political dimension of globalization to increase opportunities-based entrepreneurship.


Assuntos
Empreendedorismo , Políticas , Incidência
13.
Pan Afr Med J ; 42: 160, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36187041

RESUMO

Introduction: venous thromboembolism is a complication among admitted medical and surgical patients. International guidelines recommend patients are assessed upon admission and appropriate thromboprophylaxis should be initiated. However, studies have shown that thromboprophylaxis for patients at risk of venous thromboembolism is underutilized. Methods: this was a retrospective study conducted on hospitalized medical and surgical patients at Aga Khan Hospital Dar es salaam from January to June 2019. Patient's medical records were reviewed and data was collected for analysis of venous thromboembolism assessment and compliance with Caprini risk assessment model. The data was entered into statistical package for the social sciences (SPSS) 25 and categorized into risk groups, frequency of patients' demographic and clinical characteristics data was calculated and the main study outcomes were analyzed with Fisher´s exact test or Pearson chi-square test for categorical variables and student t-test for continuous variables. Regression analyses were done to identify significant risk factors where by P ≤ 0.05 was considered statistically significant. Results: compliance of venous thromboembolism assessment among medical and surgical patients was similar at 78% and 80%, respectively, with a baseline 22% of all admitted patients considered at risk of venous thromboembolism, hence needing thromboprophylaxis following the Caprini risk assessment modelscore. Thromboprophylaxis practices was identified at just 25% of at-risk individuals received pharmacological prophylaxis with enoxaparin; the most commonly used agent (92%). Identified risk factors for venous thromboembolism were advancing age (>60 years), history of prior major surgery, Major surgery lasting > 60 minutes, obesity, and immobilization. Conclusion: risk assessment for venous thromboembolism should be emphasized upon admission of both surgical and medical patients. Adequate thromboprophylaxis should be prescribed upon identification of patients at risk.


Assuntos
Tromboembolia Venosa , Anticoagulantes/uso terapêutico , Enoxaparina/uso terapêutico , Hospitais , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Tanzânia , Tromboembolia Venosa/epidemiologia , Tromboembolia Venosa/prevenção & controle
14.
Cureus ; 14(12): e32245, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36620782

RESUMO

OBJECTIVES:  The coronavirus disease 2019 (COVID-19) pandemic has resulted in an increase in the number of patients necessitating prolonged mechanical ventilation. Data on patients with COVID-19 undergoing tracheostomy indicating timing and outcomes are very limited. Our study illustrates--- outcomes for surgical tracheotomies performed on COVID-19 patients in Tanzania. METHODS:  This was a retrospective observational study conducted at the Aga Khan Hospital in Dar es Salaam, Tanzania. RESULTS:  Nineteen patients with COVID-19 underwent surgical tracheotomy between 16th March and 31st December 2021. All surgical tracheostomies were performed in the operating theatre. The average duration of intubation prior to tracheotomy and tracheostomy to ventilator liberation was 16 days and 27 days respectively. Only five patients were successfully liberated from the ventilator, decannulated, and discharged successfully. CONCLUSIONS:  This is the first and largest study describing tracheotomy outcomes in COVID-19 patients in Tanzania. Our results revealed a high mortality rate. Multicenter studies in the private and public sectors are needed in Tanzania to determine optimal timing, identification of patients, and risk factors predictive of improved outcomes.

15.
Mod Rheumatol ; 21(4): 375-80, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21229373

RESUMO

In order to compare the efficacy and toxicity of methotrexate and leflunomide for the treatment of rheumatoid arthritis, a double-blind randomized clinical trial was carried out at the Department of Medicine, Jinnah Medical College Hospital, Korangi, Karachi. The sample size was 240 patients and the duration of the study was 1 year. The patients enrolled were randomly divided into two groups (methotrexate and leflunomide). RA activity was clinically assessed by noting changes in the four primary (tender joint count, swollen joint count, physician and patient global assessment score) and three secondary (morning stiffness, pain intensity, HAQ) clinical efficacy end-points. Data were expressed as the mean ± SD. A P value of <0.05, calculated by paired t test, was considered significant. A total of 368 subjects were enrolled in this study. Of these, 128 subjects were withdrawn during the screening phase. Of the 240 subjects who were randomized and treated, 129 received leflunomide and 111 received methotrexate. The difference between the baseline and 12 month end-point measurements of all primary clinical efficacy end-points was significantly greater in methotrexate-treated than in leflunomide-treated subjects. Both leflunomide and methotrexate resulted in significant improvements in all secondary clinical efficacy end-points after 1 year of treatment. In both treatment groups, the most common reason for withdrawal during the treatment was adverse events. The results of this study indicate that both leflunomide and methotrexate are effective drugs for the long-term treatment of RA. It was concluded that methotrexate, which is a much cheaper drug than leflunomide, is the drug of choice, especially for patients who belong to low socioeconomic groups.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Isoxazóis/uso terapêutico , Metotrexato/uso terapêutico , Idoso , Antirreumáticos/efeitos adversos , Sedimentação Sanguínea , Diarreia/etiologia , Método Duplo-Cego , Feminino , Humanos , Isoxazóis/efeitos adversos , Leflunomida , Masculino , Metotrexato/efeitos adversos , Pessoa de Meia-Idade , Náusea/etiologia , Índice de Gravidade de Doença , Classe Social , Resultado do Tratamento
16.
Int J Gen Med ; 14: 5431-5440, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34526810

RESUMO

BACKGROUND: The emergence of the novel coronavirus disease 2019 (COVID-19) has caused millions of deaths worldwide. There has been paucity of data for hospitalized African patients suffering from COVID-19. This study aimed to identify factors associated with in-hospital mortality in patients suffering from COVID-19 in Tanzania. METHODS: This was a single center, retrospective, observational cohort study in adult patients hospitalized with confirmed COVID-19 infection. Demographics, clinical pattern, laboratory and radiological investigations associated with increased odds of mortality were analyzed. RESULTS: Of the 157 patients, 107 (68.1%) patients survived and 50 (31.8%) died. Mortality was highest in patients suffering with severe (26%) and critical (68%) forms of the disease. The median age of the cohort was 52 years (IQR 42-61), majority of patients were male (86%) and of African origin (46%), who presented with fever (69%), cough (62%) and difficulty in breathing (43%). Factors that were associated with mortality among our cohort were advanced age (OR 1.07, 95% CI 1.03-1.11), being overweight and obese (OR 9.44, 95% CI 2.71-41.0), suffering with severe form of the disease (OR 4.77, 95% CI 1.18-25.0) and being admitted to the HDU and ICU (OR 6.68, 95% CI 2.06-24.6). CONCLUSION: The overall in-hospital mortality was 31.8%. Older age, obesity, the severe form of the disease and admission to the ICU and HDU were major risk factors associated with in-hospital mortality.

17.
Int J Gen Med ; 13: 595-598, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32982376

RESUMO

Spontaneous splenic rupture is a rare and life-threatening complication of severe malaria. It demands particular attention since delayed or missed diagnosis can be potentially fatal. The exact incidence is unknown largely due to underreporting. Acute malarial infection accounts for most of the spontaneous splenic rupture. Plasmodium vivax has been associated with the majority of them; however, on rare occasion, other Plasmodium infections have also resulted in splenic rupture. We report the case of a 74-year-old male who was diagnosed with severe malaria caused by Plasmodium falciparum (P. falciparum) infection and developed an acute abdomen while on treatment due to spontaneous splenic rupture which necessitated emergency splenectomy.

18.
Comput Biol Med ; 36(1): 89-100, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16324910

RESUMO

Web servers at the National Library of Medicine (NLM) displayed images of ten skin lesions to practicing dermatologists and provided an online form for capturing text they used to describe the pictures. The terms were submitted to the UMLS Metathesaurus (Meta). Concepts retrieved, their semantic types, definitions and synonyms, were returned to each subject in a second web-based form. Subjects rated the concepts against their own descriptive terms. They submitted 825 terms, 346 of which were unique and 300 mapped to UMLS concepts. The dermatologists rated 295 concepts as 'Exact Match' and they accomplished both tasks in about 30 min.


Assuntos
Indexação e Redação de Resumos , Dermatologia , Unified Medical Language System , Redes de Comunicação de Computadores , Humanos , Semântica
19.
J Pak Med Assoc ; 56(5): 243-7, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16767957

RESUMO

OBJECTIVES: To study the burden of anxiety and depression as a comorbid among patients of chronic rheumatological disorders and to investigate possible determinants of depression and anxiety. METHODS: It was a cross-sectional study conducted at the rheumatology clinic of The Aga Khan University Hospital (AKUH) Karachi, Pakistan. With convenient sampling, 111 patients who fulfilled inclusion/exclusion criteria were screened for anxiety and depression with help of Aga Khan University Anxiety and Depression Scale (AKUADS). The data was entered and analyzed by Statistical Package for Social Sciences (Version 10.0). RESULTS: The population consisted mainly of middle aged (mean age 41) females (80.2%). The most common diagnosis was rheumatoid arthritis 57% followed by systemic lupus erythmatosis 17% and systemic sclerosis 9%. The permanent joint deformity was present in 33.3% patients and 36.9% patients were suffering from active disease with pain and inflammation. The frequency of anxiety and depression was 65.8%. Educational qualification, permanent joint deformity, active inflammation and time elapsed since diagnosis had significant association with anxiety and depression. Marital Status, gender, economic activity and monthly family income had no effect on the frequency of anxiety and depression. CONCLUSION: Almost two third of patients with chronic rheumatological disorders, also suffered from a concomitant mood disorder. Systematic evaluation of all patients for mood disorders and psychological distress in rheumatology clinics is highly recommended.


Assuntos
Ansiedade/etiologia , Artrite Reumatoide/psicologia , Depressão/etiologia , Lúpus Eritematoso Sistêmico/psicologia , Escleroderma Sistêmico/psicologia , Adolescente , Adulto , Idoso , Ansiedade/epidemiologia , Artrite Reumatoide/fisiopatologia , Doença Crônica , Comorbidade , Estudos Transversais , Depressão/epidemiologia , Feminino , Hospitais Universitários , Humanos , Lúpus Eritematoso Sistêmico/fisiopatologia , Masculino , Pessoa de Meia-Idade , Transtornos do Humor/epidemiologia , Transtornos do Humor/etiologia , Dor/etiologia , Dor/psicologia , Paquistão/epidemiologia , Prevalência , Escleroderma Sistêmico/fisiopatologia , Inquéritos e Questionários
20.
J Coll Physicians Surg Pak ; 15(2): 68-70, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15730827

RESUMO

OBJECTIVE: To describe the etiology and outcome in patients with ventricular tachycardia in our patient population. DESIGN: A descriptive study. PLACE AND DURATION OF STUDY: The study was conducted at the Aga Khan University Hospital from November 2002 to October 2003. SUBJECTS AND METHODS: We enrolled 58 patients who presented to the emergency room with clinical and electrocardiographic evidence of ventricular tachycardia (VT) and/or who developed it during the inpatient stay at the Aga Khan University Hospital. Medical records were retrieved through the computerized data retrieval system. Patients above 18 years of age were included. Those with a pacemaker or who developed VT during electrophysiological testing were excluded. A pre-designed proforma was filled for all patients who fulfilled the inclusion criteria. All patients were worked up for etiological causes of ventricular tachycardia. Outcomes in the form of death or discharge were recorded. RESULTS: There were 58 patients who suffered ventricular tachycardias during the study period. These included 70.7 %( 42) males and 29.3 %( 16) females. Mean age of the patients was 57.06+/-11.84 years. Emergency room admissions accounted for 55.2% and ventricular tachycardia was seen in 44.8% during the inpatient stay. Unresponsiveness was the presenting symptom in 25.9%, chest pain in 24.1%, palpitations in 13.8% and ghabrahat in 12.1% patients. Myocardial ischemia was seen in 43.5% of the patients while 23.2% had cardiomyopathy, followed by 33.3% miscellaneous. Out of the patients who had myocardial ischemia (43.5%), 76.6% had non-ST elevation myocardial infarction, 20 % patients had ST elevation myocardial infarction and 3.3% had unstable angina. Hemodynamic instability was noted in 50%, who subsequently required defibrillation. The mortality among these patients with VT was 13.7%. CONCLUSION: Myocardial ischemia was most commonly seen in patients with ventricular tachycardia in our group of patients. Ventricular tachycardia is associated with a significant mortality of 13.7%.


Assuntos
Taquicardia Ventricular , Cardiomiopatia Dilatada/complicações , Morte Súbita Cardíaca/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/complicações , Paquistão , Taquicardia Ventricular/diagnóstico , Taquicardia Ventricular/epidemiologia , Taquicardia Ventricular/etiologia
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