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2.
Indian J Gastroenterol ; 43(1): 22-35, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38347433

RESUMO

Rising number of inflammatory bowel disease (IBD) cases in developing countries necessitate clear guidance for clinicians for the appropriate use of advanced therapies. An expert consensus document was generated to guide the usage of tofacitinib, a Janus kinase inhibitor, in ulcerative colitis. Tofacitinib is a useful agent for the induction and maintenance of remission in ulcerative colitis. It can be used in the setting of biological failure or even steroid-dependent and thiopurine refractory disease. Typically, the induction dose is 10 mg BD orally. Usually, clinical response is evident within eight weeks of therapy. In those with clinical response, the dose can be reduced from 10 mg BD to 5 mg BD. Tofacitinib should be avoided or used cautiously in the elderly, patients with cardiovascular co-morbidity, uncontrolled cardiac risk factors, previous thrombotic episodes and those at high risk for venous thrombosis or previous malignancy. Baseline evaluation should include testing for and management of hepatitis B infection and latent tuberculosis. Where feasible, it is prudent to ensure complete adult vaccination, including Herpes zoster, before starting tofacitinib. The use of tofacitinib may be associated with an increased risk of infections such as herpes zoster and tuberculosis reactivation. Maternal exposure to tofacitinib should be avoided during pre-conception, pregnancy, and lactation. There is emerging evidence of tofacitinib in acute severe colitis, although the exact positioning (first-line with steroids or second-line) is uncertain.


Assuntos
Colite Ulcerativa , Colite , Herpes Zoster , Pirimidinas , Adulto , Feminino , Humanos , Idoso , Colite Ulcerativa/tratamento farmacológico , Consenso , Piperidinas/efeitos adversos , Herpes Zoster/induzido quimicamente , Herpes Zoster/tratamento farmacológico
3.
Indian J Gastroenterol ; 42(3): 332-346, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37273146

RESUMO

Antiplatelet and/or anticoagulant agents (collectively known as antithrombotic agents) are used to reduce the risk of thromboembolic events in patients with conditions such as atrial fibrillation, acute coronary syndrome, recurrent stroke prevention, deep vein thrombosis, hypercoagulable states and endoprostheses. Antithrombotic-associated gastrointestinal (GI) bleeding is an increasing burden due to the growing population of advanced age with multiple comorbidities and the expanding indications for the use of antiplatelet agents and anticoagulants. GI bleeding in antithrombotic users is associated with an increase in short-term and long-term mortality. In addition, in recent decades, there has been an exponential increase in the use of diagnostic and therapeutic GI endoscopic procedures. Since endoscopic procedures hold an inherent risk of bleeding that depends on the type of endoscopy and patients' comorbidities, in patients already on antithrombotic therapies, the risk of procedure-related bleeding is further increased. Interrupting or modifying doses of these agents prior to any invasive procedures put these patients at increased risk of thromboembolic events. Although many international GI societies have published guidelines for the management of antithrombotic agents during an event of GI bleeding and during urgent and elective endoscopic procedures, no Indian guidelines exist that cater to Indian gastroenterologists and their patients. In this regard, the Indian Society of Gastroenterology (ISG), in association with the Cardiological Society of India (CSI), Indian Academy of Neurology (IAN) and Vascular Society of India (VSI), have developed a "Guidance Document" for the management of antithrombotic agents during an event of GI bleeding and during urgent and elective endoscopic procedures.


Assuntos
Gastroenterologia , Neurologia , Humanos , Fibrinolíticos/efeitos adversos , Anticoagulantes/efeitos adversos , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/prevenção & controle , Hemorragia Gastrointestinal/tratamento farmacológico , Endoscopia Gastrointestinal
4.
Indian J Gastroenterol ; 42(2): 233-240, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37154853

RESUMO

BACKGROUND: Hepatocellular carcinoma (HCC) is considered uncommon in India. The aim of this study was to document the demographic characteristics and clinical aspects of HCC in Kerala, India. METHODS: A survey of HCC in Kerala was performed. All gastroenterologists in the region were invited. From May 2018 to April 2020, data was collected in a standardized questionnaire. RESULTS: Forty-three doctors from 15 centers contributed the data. Total 1217 patients were analyzed. This is the largest state-wide survey of HCC in India. HCC was more common in men (90%) than in women (p < 0.01). The etiology of liver disease was hepatitis B virus (7%), hepatitis C virus (4%) and alcohol (40%). Diabetes mellitus was present in 64%, hypercholesterolemia in 17% and hypertension in 38%. Obesity was present in 33% and 15% were overweight. Non-alcoholic fatty liver disease (NAFLD) with or without metabolic syndrome was present in 44%. Serum alpha-fetoprotein was > 400 ng/mL in 24%, total tumor diameter was > 5 cm in 59%, portal vein invasion was seen in 35% and distant metastasis was seen in 15%. Specific therapy was given to 52%. Treatments given included liver transplantation (n = 24), liver resection (n = 39) and transarterial chemoembolization (TACE, n = 184). Although the study was not designed to compare survival, patients who had liver transplantation had longer survival (median 69 months) compared to matched patients given only TACE (median 18 months) (p = 0.03). CONCLUSION: HCC is common in Kerala, India. NAFLD has a predominant association with HCC in Kerala. Most of the patients report late when curative treatment is not possible.


Assuntos
Carcinoma Hepatocelular , Quimioembolização Terapêutica , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Masculino , Humanos , Feminino , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/terapia , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/terapia , Hepatopatia Gordurosa não Alcoólica/complicações , Estudos Prospectivos , Inquéritos e Questionários , Resultado do Tratamento , Estudos Retrospectivos
5.
J Gastroenterol Hepatol ; 37(6): 1004-1015, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35178742

RESUMO

BACKGROUND AND AIM: Inflammatory bowel disease (IBD) is emerging in the newly industrialized countries of South Asia, South-East Asia, and the Middle East, yet epidemiological data are scarce. METHODS: We performed a cross-sectional study of IBD demographics, disease phenotype, and treatment across 38 centers in 15 countries of South Asia, South-East Asia, and Middle East. Intergroup comparisons included gross national income (GNI) per capita. RESULTS: Among 10 400 patients, ulcerative colitis (UC) was twice as common as Crohn's disease (CD), with a male predominance (UC 6678, CD 3495, IBD unclassified 227, and 58% male). Peak age of onset was in the third decade, with a low proportion of elderly-onset IBD (5% age > 60). Familial IBD was rare (5%). The extent of UC was predominantly distal (proctitis/left sided 67%), with most being treated with mesalamine (94%), steroids (54%), or immunomodulators (31%). Ileocolic CD (43%) was the commonest, with low rates of perianal disease (8%) and only 6% smokers. Diagnostic delay for CD was common (median 12 months; interquartile range 5-30). Treatment of CD included mesalamine, steroids, and immunomodulators (61%, 51%, and 56%, respectively), but a fifth received empirical antitubercular therapy. Treatment with biologics was uncommon (4% UC and 13% CD), which increased in countries with higher GNI per capita. Surgery rates were 0.1 (UC) and 2 (CD) per 100 patients per year. CONCLUSIONS: The IBD-ENC cohort provides insight into IBD in South-East Asia and the Middle East, but is not yet population based. UC is twice as common as CD, familial disease is uncommon, and rates of surgery are low. Biologic use correlates with per capita GNI.


Assuntos
Colite Ulcerativa , Doença de Crohn , Doenças Inflamatórias Intestinais , Idoso , Sudeste Asiático , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/epidemiologia , Colite Ulcerativa/terapia , Doença de Crohn/diagnóstico , Doença de Crohn/tratamento farmacológico , Doença de Crohn/epidemiologia , Estudos Transversais , Diagnóstico Tardio , Ásia Oriental , Feminino , Humanos , Fatores Imunológicos , Incidência , Doenças Inflamatórias Intestinais/diagnóstico , Doenças Inflamatórias Intestinais/epidemiologia , Doenças Inflamatórias Intestinais/terapia , Masculino , Mesalamina , Fenótipo
6.
Intest Res ; 19(2): 206-216, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32646197

RESUMO

BACKGROUND/AIMS: The national registry for inflammatory bowel disease (IBD) was designed to study epidemiology and prescribing pattern of treatment of IBD in India. METHODS: A multicenter, cross-sectional, prospective registry was established across four geographical zones of India. Adult patients with ulcerative colitis (UC) or Crohn's disease (CD) were enrolled between January 2014 and December 2015. Information related to demographics; disease features; complications; and treatment history were collected and analyzed. RESULTS: A total of 3,863 patients (mean age, 36.7 ± 13.6 years; 3,232 UC [83.7%] and 631 CD [16.3%]) were enrolled. The majority of patients with UC (n = 1,870, 57.9%) were from north, CD was more common in south (n = 348, 55.5%). The UC:CD ratio was 5.1:1. There was a male predominance (male:female = 1.6:1). The commonest presentation of UC was moderately severe (n = 1,939, 60%) and E2 disease (n = 1,895, 58.6%). Patients with CD most commonly presented with ileocolonic (n = 229, 36.3%) inflammatory (n = 504, 79.9%) disease. Extraintestinal manifestations were recorded among 13% and 20% of patients in UC and CD respectively. Less than 1% patients from both cohorts developed colon cancer (n = 26, 0.7%). The commonly used drugs were 5-aminosalicylates (99%) in both UC and CD followed by azathioprine (34.4%). Biologics were used in only 1.5% of patients; more commonly for UC in north and CD in south. CONCLUSIONS: The national IBD registry brings out diversities in the 4 geographical zones of India. This will help in aiding research on IBD and improving quality of patient care.

7.
Eur J Gastroenterol Hepatol ; 32(10): 1305-1311, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32796356

RESUMO

BACKGROUND: Paediatric inflammatory bowel disease (PIBD) is increasing across the world. However, information from India is sparse. This multicentre study evaluated the demographics, clinical phenotype and outcome of PIBD from India. METHODS: Data of children (≤18 years) with PIBD were collected using a proforma containing details of demographics, clinical profile, extraintestinal manifestations (EIM), investigations, disease extent and treatment. RESULTS: Three hundred twenty-five children [Crohn's disease: 65.2%, ulcerative colitis: 28.0%, IBD unclassified (IBDU): 6.7%, median age at diagnosis: 11 (interquartile range 6.3) years] were enrolled. 6.9% children had family history of IBD. Pancolitis (E4) was predominant in ulcerative colitis (57.8%) and ileocolonic (L3, 55.7%) in Crohn's disease. Perianal disease was present in 10.9% and growth failure in 20.9% of Crohn's disease cases. Steroids were the initial therapy in 84.2%, 5-amino salicylic acid in 67.3% and exclusive enteral nutrition (EEN) in 1.3% cases. Overall, immunomodulators and biologics were given to 84.3 and 17.9% cases, respectively, and 2.9% cases underwent surgery. Very early onset IBD (VEOIBD) was seen in 60 (19.2%) children. IBDU was commoner in the VEOIBD than the older-PIBD (18/60 vs 4/253; P < 0.001). VEOIBD-Crohn's disease patients more often had isolated colonic disease than the older Crohn's disease (45.4% vs 11.8%; P < 0.001). Prevalence of perianal disease, EIM, therapeutic requirements and outcome were not different between VEOIBD and older-PIBD. CONCLUSION: Disease location and phenotype of PIBD in Indian children is similar to the children from the west. However, the therapeutic options of EEN, biologics and surgery are underutilized. VEOIBD accounted for 19.2% of PIBD.


Assuntos
Colite Ulcerativa , Doença de Crohn , Doenças Inflamatórias Intestinais , Criança , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/epidemiologia , Colite Ulcerativa/terapia , Doença de Crohn/diagnóstico , Doença de Crohn/epidemiologia , Doença de Crohn/terapia , Humanos , Índia/epidemiologia , Estudos Prospectivos
8.
J Clin Exp Hepatol ; 10(3): 266-270, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32362732

RESUMO

Coronavirus disease 2019 (COVID-19), which started in December 2019 in China, has resulted in a pandemic leading to significant morbidity and mortality across the globe. Although it mainly causes respiratory symptoms, respiratory failure and death due to multiorgan failure, there is evolving evidence to suggest gastrointestinal (GI) and liver involvement by this virus. Owing to this, health-care professionals taking care of GI and liver diseases are also at an increased risk of getting exposed. Hence, there is a need for protocols to be prepared to guide the handling of COVID-19 patients by the GI and liver specialists, as well as to manage the pre-existing GI and liver diseases during the ongoing pandemic. We present here the guidelines prepared jointly by the three Indian professional bodies in the field of GI diseases, namely the Society of Gastrointestinal Endoscopy of India, Indian Society of Gastroenterology, and Indian National Association for the Study of the Liver.

9.
Indian J Radiol Imaging ; 29(2): 111-132, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31367083

RESUMO

The Indian Society of Gastroenterology (ISG) Task Force on Inflammatory Bowel Disease and the Indian Radiological and Imaging Association (IRIA) developed combined ISG-IRIA evidence-based best-practice guidelines for imaging of the small intestine in patients suspected to have or having Crohn's disease. The 29 consensus statements, developed through a modified Delphi process, are intended to serve as reference for teaching, clinical practice, and research.

10.
Clin Nucl Med ; 44(10): e595-e596, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31205148

RESUMO

Neuroendocrine tumors (NET) are rare neoplasms and commonly metastasize to liver, lymph nodes and less frequently to bones and lungs. Metastases to other organs are extremely rare and we report a case of NET clinically presenting with bilateral proptosis secondary to metastases in orbits. Ga-DOTANOC PET/CT demonstrated somatostatin receptor overexpressing lesions in bilateral orbits, small intestine, lymph nodes, lungs, heart and testes in the absence of liver metastases.


Assuntos
Exoftalmia/complicações , Tumores Neuroendócrinos/diagnóstico por imagem , Tumores Neuroendócrinos/patologia , Compostos Organometálicos , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Neoplasias Cardíacas/complicações , Neoplasias Cardíacas/secundário , Humanos , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/secundário , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Neoplasias Orbitárias/complicações , Neoplasias Orbitárias/secundário , Neoplasias Testiculares/complicações , Neoplasias Testiculares/secundário
11.
Indian J Gastroenterol ; 37(2): 164-168, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29611112

RESUMO

Gastrointestinal endoscopies can cause an unpleasant experience for the patient. In India, most endoscopists follow a common institutional policy for sedation. The aim of this study was to analyze the sedation practices in various endoscopy centers across southern India. Data were collected with the help of a structured questionnaire given to a senior endoscopist of the center. Data from the completed questionnaire were later analyzed. Data were obtained from 19 centers across southern India. All endoscopy suites had central oxygen supply and emergency cart. A defibrillator was available in 12 centers (63.2%). Common criteria followed for administering sedation included therapeutic procedures (84.2%), patients who requested sedation (63.2%), children (63.2%), high-risk procedures (57.9%), and uncooperative patients (57.9%). Monitoring methods included pulse oximetry alone in six centers (31.6%), pulse oximetry with blood pressure monitoring in five centers (26.3%), and pulse oximetry, blood pressure, and electrocardiography (ECG) monitoring in eight centers (42.1%). For advanced procedures like endoscopic ultrasonography (EUS) and endoscopic retrograde cholangiopancreatography (ERCP), sedation was universally used. An anesthesiologist was available in the endoscopy suite in eight centers (42.1%). Five endoscopists administered propofol sedation without anesthesiologist's presence (26.3%). Thirteen centers had a written protocol for pre-procedure risk assessment (68.4%). A dedicated post-procedure observation area was available in seventeen centers (89.5%). Seven centers followed a written post-sedation discharge protocol (36.8%). Significant variations exist in the practice of sedation among endoscopists in southern India. There is an urgent need to formulate guidelines by endoscopy societies for ensuring better patient outcomes in endoscopy.


Assuntos
Sedação Consciente , Endoscopia Gastrointestinal , Inquéritos e Questionários , Competência Clínica , Sedação Consciente/métodos , Humanos , Índia , Midazolam , Monitorização Fisiológica , Período Perioperatório , Guias de Prática Clínica como Assunto , Propofol
12.
J Gastroenterol Hepatol ; 33(8): 1436-1444, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29377271

RESUMO

Achalasia cardia (AC) is a frequently encountered motility disorder of the esophagus resulting from an irreversible degeneration of neurons. Treatment modalities are palliative in nature, and there is no curative treatment available for AC as of now. Significant advancements have been made in the management of AC over last decade. The introduction of high resolution manometry and per-oral endoscopic myotomy (POEM) has strengthened the diagnostic and therapeutic armamentarium of AC. High resolution manometry allows for the characterization of the type of achalasia, which in turn has important therapeutic implications. The endoscopic management of AC has been reinforced with the introduction of POEM that has been found to be highly effective and safe in palliating the symptoms in short-term to mid-term follow-up studies. POEM is less invasive than Heller's myotomy and provides the endoscopist with the opportunity of adjusting the length and orientation of esophageal myotomy according to the type of AC. The management of achalasia needs to be tailored for each patient, and the role of pneumatic balloon dilatation, POEM, or Heller's myotomy needs to be revisited. In this review, we discuss the important aspects of diagnosis as well as management of AC. The statements presented in the manuscript reflect the cumulative efforts of an expert consensus group.


Assuntos
Consenso , Acalasia Esofágica/diagnóstico , Acalasia Esofágica/terapia , Manometria/métodos , Miotomia/métodos , Dilatação/métodos , Esofagoscopia , Fundoplicatura/métodos , Miotomia de Heller/métodos , Humanos , Cuidados Paliativos , Resultado do Tratamento
14.
Indian J Gastroenterol ; 36(6): 487-508, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29307029

RESUMO

The Indian Society of Gastroenterology (ISG) Task Force on Inflammatory Bowel Disease and the Indian Radiological and Imaging Association (IRIA) developed combined ISG-IRIA evidence-based best-practice guidelines for imaging of the small intestine in patients with suspected or known Crohn's disease. These 29 position statements, developed through a modified Delphi process, are intended to serve as reference for teaching, clinical practice, and research.


Assuntos
Doença de Crohn/diagnóstico por imagem , Medicina Baseada em Evidências , Gastroenterologia/organização & administração , Intestino Delgado/diagnóstico por imagem , Imageamento por Ressonância Magnética , Guias de Prática Clínica como Assunto , Radiologia/organização & administração , Sociedades Médicas/organização & administração , Adolescente , Criança , Feminino , Humanos , Índia , Masculino , Tomografia Computadorizada por Raios X
15.
Indian J Gastroenterol ; 36(6): 459-467, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29368189

RESUMO

BACKGROUND: Inflammatory bowel disease (IBD) is considered uncommon in Asia. The aim of this study was to document the demographic characteristics and clinical aspects of ulcerative colitis (UC) and Crohn's disease (CD) in Kerala, India. METHODS: A survey of IBD in Kerala was performed. All gastroenterologists in the region were invited. From May 2013 to October 2015, data were collected in a standardized pro-forma. RESULTS: Forty-seven doctors in 34 centers contributed data. A total of 2142 patients were analyzed. This is the largest state-wide survey of IBD in India. Ulcerative colitis was diagnosed in 1112 (38 new), Crohn's disease in 980 (53 new), and 50 were unclassified (5 new). The district-wise distribution of IBD cases correlated with the District-wise Gross State Domestic Product (r = 0.69, p < 0.01). Three percent was below the age of 18. Patients with UC had more diarrhea (73% vs. 51%), bleeding PR (79% vs. 34%), and intermittent flares (35% vs. 13%) (all p < 0.01). Patients with CD had more abdominal pain (62% vs. 46%), weight loss (53% vs. 40%), fever (28% vs. 18%), and history of antituberculosis treatment (21% vs. 5%) (all p < 0.01). Compared to adults, children (below 18 years) were more likely to have extensive UC (58% vs. 34%, p < 0.01) and unclassified IBD (15% vs. 2%, p < 0.01). CONCLUSION: Inflammatory bowel disease is common in Kerala, India. The disease characteristics of patients with IBD are almost similar to those from other parts of the country. Both UC and CD were seen in equal proportion in Kerala.


Assuntos
Doenças Inflamatórias Intestinais/epidemiologia , Doenças Inflamatórias Intestinais/fisiopatologia , Adolescente , Fatores Etários , Criança , Feminino , Humanos , Índia/epidemiologia , Masculino , Estudos Multicêntricos como Assunto , Estudos Prospectivos , Índice de Gravidade de Doença , Adulto Jovem
17.
Sci Rep ; 5: 13660, 2015 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-26329039

RESUMO

Delays between tissue collection and tissue fixation result in ischemia and ischemia-associated changes in protein phosphorylation levels, which can misguide the examination of signaling pathway status. To identify a biomarker that serves as a reliable indicator of ischemic changes that tumor tissues undergo, we subjected harvested xenograft tumors to room temperature for 0, 2, 10 and 30 minutes before freezing in liquid nitrogen. Multiplex TMT-labeling was conducted to achieve precise quantitation, followed by TiO2 phosphopeptide enrichment and high resolution mass spectrometry profiling. LC-MS/MS analyses revealed phosphorylation level changes of a number of phosphosites in the ischemic samples. The phosphorylation of one of these sites, S82 of the heat shock protein 27 kDa (HSP27), was especially abundant and consistently upregulated in tissues with delays in freezing as short as 2 minutes. In order to eliminate effects of ischemia, we employed a novel cryogenic biopsy device which begins freezing tissues in situ before they are excised. Using this device, we showed that the upregulation of phosphorylation of S82 on HSP27 was abrogated. We thus demonstrate that our cryogenic biopsy device can eliminate ischemia-induced phosphoproteome alterations, and measurements of S82 on HSP27 can be used as a robust marker of ischemia in tissues.


Assuntos
Proteínas de Choque Térmico HSP27/metabolismo , Isquemia/metabolismo , Fosfoproteínas/metabolismo , Fosfosserina/metabolismo , Proteômica/métodos , Animais , Biomarcadores/metabolismo , Biópsia , Linhagem Celular Tumoral , Humanos , Isquemia/patologia , Camundongos SCID , Fosforilação , Regulação para Cima , Ensaios Antitumorais Modelo de Xenoenxerto
18.
Indian J Gastroenterol ; 34(1): 3-22, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25772856

RESUMO

In 2012, the Indian Society of Gastroenterology's Task Force on Inflammatory Bowel Diseases undertook an exercise to produce consensus statements on Crohn's disease (CD). This consensus, produced through a modified Delphi process, reflects our current recommendations for the diagnosis and management of CD in India. The consensus statements are intended to serve as a reference point for teaching, clinical practice, and research in India.


Assuntos
Doença de Crohn , Gastroenterologia/organização & administração , Sociedades Médicas/organização & administração , Administração Oftálmica , Adulto , Anti-Inflamatórios não Esteroides/administração & dosagem , Anticorpos Monoclonais/administração & dosagem , Azatioprina/administração & dosagem , Doença de Crohn/diagnóstico , Doença de Crohn/terapia , Glucocorticoides/administração & dosagem , Humanos , Imunossupressores/administração & dosagem , Índia , Infliximab/administração & dosagem , Quimioterapia de Manutenção , Mesalamina/administração & dosagem , Indução de Remissão
19.
Int J Rob Res ; 33(4): 616-630, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25313266

RESUMO

Magnetic Resonance Imaging (MRI) provides superior soft-tissue contrast in cancer diagnosis compared to other imaging modalities. However, the strong magnetic field inside the MRI bore along with limited scanner bore size poses significant challenges. Since current approaches in breast biopsy using MR images is primarily a blind targeting approach, it is necessary to develop a MRI-compatible robot that can avoid multiple needle insertions into the breast tissue. This MRI-compatible robotic system could potentially lead to improvement in the targeting accuracy and reduce sampling errors. A master-slave surgical system has been developed comprising of a MRI-compatible slave robot which consists of one piezo motor and five pneumatic cylinders connected by long pneumatic transmission lines. The slave robot follows the configuration of the master robot, which provides an intuitive manipulation interface for the physician and operates inside the MRI bore to adjust the needle position and orientation and perform needle insertion task. Based on the MRI experiments using the slave robot, there was no significant distortion in the images and hence the slave robot can be safely operated inside the MRI with minimal loss in signal-to-noise ratio (SNR). Ex vivo and in vivo experiments have been conducted to evaluate the performance of the master-slave surgical system.

20.
Indian J Occup Environ Med ; 18(1): 9-12, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25006310

RESUMO

INTRODUCTION: Service sector in Indian industrial growth has obtained significant numbers. Automobile service industry is one of the largest in the world with a majority of the workers in unorganized sector of the industry. This study was carried out among auto service industry workers in Vellore urban area to assess possible occupation related morbidity. MATERIALS AND METHODS: A cross-sectional observation study was carried out among 106 automobile repair shop workers. RESULTS: Half (47%) suffered work related stress, 32 (30.2%) reported exposure to dust, 81 (76%) to heat, and 50 (17%) to hazardous chemicals and heavy metals. More than 90% reported over exposure to petroleum products. A third reported cough for more than 2 weeks, more than a quarter reported gastrointestinal symptoms associated with work. Half of them reported musculoskeletal complaints associated with work with a quarter reporting un-intentional work place injuries. A tenth of them were found to have reduced pulmonary function on testing and nearly half had impaired sensory functions in peripheries. Reduced pulmonary function was found to be significantly associated with heavy metal exposure (P = 0.001). Peripheral neuropathy was significantly associated with years of occupation (P = 0.001), exposure to petroleum products (P = 0.03) and exposure to heavy metals (P = 0.018). DISCUSSION: Half of the workers were unaware of health problems associated with their occupational exposures and thereby the use of personal protection is abysmally low. A very high proportion of workers had symptoms of cough, breathlessness, abdominal pain, abdominal discomfort and muscle aches. Almost a quarter of the workers had un-intentional occupational injuries in the last 6 months. Though they work in a high-risk environment with chances of fire hazard, falls and chemical exposures, none of the workshops had fire-extinguishers, first aid kits or any such safety devices.

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