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1.
Pediatr Emerg Care ; 37(7): e376-e379, 2021 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-30211835

RESUMO

OBJECTIVES: This study aimed to provide an assessment of medical malpractice claims involving pediatric patients cared for in emergency department and urgent care settings. METHODS: We performed a retrospective review of all closed malpractice claims involving children (0-17 years old) originating from emergency department or urgent care centers from the Physician Insurers Association of America's Data Sharing Project database for a 15-year period (2001-2015). Reported data collected include medical specialty involved, medical diagnoses, chief medical factors, severity of resulting injury, claim disposition, average indemnity, and average defense costs. RESULTS: A total of 728 closed claims in pediatric emergency care settings were reviewed. Money was paid to the claimant in 30% of cases (220/728), with a total of US $70.3 million (average $319,513) paid to patients or families during the 15-year period. The most common resulting medical conditions were cardiac or cardiorespiratory arrest, appendicitis, and disorder of male genital organs. Error in diagnosis was the most common chief medical factor (41%), whereas those that involved failure or delay in admission to the hospital, which was the eighth most common chief medical factor, resulted in the highest average indemnity. Of the 728 closed claims, 220 involved a patient death (30%), but claims involving major permanent injury more often resulted in a payment. Of the 57 cases that went to trial, verdicts favored the physician in 47 cases (82%). CONCLUSIONS: Cardiac conditions, appendicitis, and disorder of the male genital organs are the most common medical conditions, and error in diagnosis is the most common chief medical factor in pediatric emergency care malpractice suits. It is important for providers practicing in these settings to be familiar with the common diagnoses and chief medical factors involved in these claims.


Assuntos
Serviços Médicos de Emergência , Imperícia , Adolescente , Assistência Ambulatorial , Criança , Pré-Escolar , Serviço Hospitalar de Emergência , Humanos , Lactente , Recém-Nascido , Masculino , Estudos Retrospectivos , Estados Unidos/epidemiologia
2.
Ophthalmology ; 125(5): 631-641, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29342439

RESUMO

PURPOSE: To describe characteristics of closed medical professional liability (MPL) claims against ophthalmologists in the United States. DESIGN: Retrospective analysis of MPL claims from 2006-2015. Data were obtained from the Physician Insurers Association of America (PIAA) Data Sharing Project (DSP). Comparison was made between ophthalmology and all healthcare specialties for physician demographics, prevalence and costs associated with closed claims, and resolution of claims. The most prevalent chief medical factor, presenting medical condition, operative procedure, outcomes, and resolution of ophthalmology claims were compared between the 2006-2010 and 2011-2015 periods. PARTICIPANTS: From 2006-2015, 90 743 MPL claims were closed: 2.6% (2325/90 743) of closed claims and 2.2% (564/24 670) of all paid claims were against ophthalmologists. METHODS: Retrospective analysis of MPL claims captured by the PIAA DSP over a 10-year period. MAIN OUTCOME MEASURES: Subspecialty pertaining to the claim, number of claims closed and paid, indemnity paid, allocated loss adjustment expenses, chief medical factor, presenting medical condition, operative procedure, outcome, and resolution. RESULTS: Only 24% of closed claims against ophthalmologists resulted in payment. Two-thirds were dropped, withdrawn, or dismissed. Ninety percent of claims that received a verdict were favorable toward the ophthalmologist. Cataract and cornea surgeries were the most prevalent and most costly operative procedures, accounting for 50% of all claims and $47 641 376 and $32 570 148 in total paid indemnity, respectively. Average indemnity was higher for corneal procedures ($304 476) than vitreoretinal procedures ($270 141) or oculoplastic procedures on the eyelid ($222 471) or orbit and eyeball ($183 467). The prevalence and cost of claims related to endophthalmitis declined from 2006-2010 (n = 38/1160 [3.3%]; average indemnity, $516 875) period to the 2011-2015 (n = 26/1165 [2.2%]; average indemnity, $247 083) period. Average indemnity paid ($280 227 vs. $335 578) and amount spent on legal defense ($41 450 vs. $46 391) was slightly lower among ophthalmologists compared with all healthcare specialties, respectively. CONCLUSIONS: Ophthalmology has a relatively low number of malpractice claims reported compared with other healthcare specialties and shows less spending on average indemnity and defense. Further studies are needed to investigate the reasons for the higher prevalence of claims related to cataract and corneal surgeries and the higher average indemnity paid for corneal procedures relative to vitreoretinal or oculoplastic procedures.


Assuntos
Responsabilidade Legal , Imperícia/estatística & dados numéricos , Oftalmologistas/legislação & jurisprudência , Oftalmologia/estatística & dados numéricos , Padrões de Prática Médica/legislação & jurisprudência , Adulto , Idoso , Competência Clínica , Bases de Dados Factuais , Feminino , Humanos , Revisão da Utilização de Seguros , Masculino , Erros Médicos/estatística & dados numéricos , Pessoa de Meia-Idade , Estudos Retrospectivos , Estados Unidos
3.
J Pediatr Orthop ; 36(2): 213-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25705809

RESUMO

BACKGROUND: Medical liability exposure varies based on scope of practice, patient demographics, and location of practice. There is a generally held belief that treatment of pediatric patients increases one's medicolegal risk. We examined a large national database of orthopaedic malpractice claims to determine if pediatric malpractice claims were associated with a less favorable medicolegal outcome compared with adults. METHODS: Physician Insurers Association of America is an association of medical liability insurance carriers providing liability coverage for 60% of private practice physicians in the United States. The Physician Insurers Association of America data registry of closed medical liability claims was examined, including all orthopaedic claims between 1985 and 2012 in this review. Claims were categorized based on the age of the claimant (pediatric: less than 21 y, adult: 21 y or older). These groups were compared based on percentage of claims resulting in payment, indemnity paid, and years between occurrence of incident and filing of claim. In addition, the top 10 most prevalent claims were identified and compared between groups. RESULTS: A total of 25,702 closed orthopaedic claims were included. Pediatric claims accounted for 13% of the data. The average time from incident to claim filing was 1.92 years for pediatrics and 1.59 years for adults. Pediatric claims resulted in a higher percent of payment (33% vs. 30%) and average indemnity paid ($189,732 vs. $180,171) compared with adults. Five of the top 10 conditions resulting in a claim in each group were the same. Comparing these 5 conditions, in general there were minimal differences in the average time to claim filing between the groups, but larger average indemnity paid in the pediatric group. CONCLUSIONS: There appear to be moderate differences in outcomes of orthopaedic malpractice claims between adult and pediatric patients. The longer statute of limitations associated with pediatric claims does not appear to portend a less favorable medicolegal outcome or excessively longer time to claims filing for pediatric patients.


Assuntos
Imperícia/estatística & dados numéricos , Ortopedia , Pediatria , Prática Privada , Adulto , Criança , Compensação e Reparação , Humanos , Sistema de Registros , Estados Unidos
4.
Ann Oncol ; 24 Suppl 5: v6-12, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23975704

RESUMO

Paclitaxel (Taxol), one of the most commonly used chemotherapeutic agents, is poorly soluble in water and requires cremophor, which often causes infusion reactions, as a solvent. Nanoxel, a nanoparticle formulation of the taxane, has been approved by the Indian regulatory authority. In the present article, we aim to describe the experience with the use of Nanoxel in India and its clinical and economic implications. We present three retrospective series in a common practice environment and an economic model. The first series shows no reactions in 596 Nanoxel infusions; the second series shows comparable adverse events other than infusion reactions between 83 patients who received Nanoxel and 32 treated with conventional paclitaxel. The third reveals comparable clinical outcomes for 51 patients treated with Nanoxel or conventional paclitaxel for gastroesophageal tumors. Finally, we describe an economic model which estimates savings of 21 580 Indian rupees per cycle with Nanoxel vis-à-vis conventional paclitaxel in the treatment of solid tumors in India. In conclusion, in an era in which the greatest challenge we face as medical oncologists is how to conciliate hard-won and incremental--but small--improvements in survival with exponentially rising drugs costs, it is refreshing to see a potential new formulation of a commonly used drug that may actually generate cost-savings while improving clinical outcomes and patient well-being. Further studies are clearly warranted to determine the optimal dose and schedule for Nanoxel as well as its comparative effectiveness to cremophor-based paclitaxel.


Assuntos
Análise Custo-Benefício , Nanopartículas/economia , Neoplasias/tratamento farmacológico , Paclitaxel/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/classificação , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Humanos , Índia , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Nanopartículas/efeitos adversos , Nanopartículas/uso terapêutico , Neoplasias/economia , Neoplasias/patologia , Paclitaxel/efeitos adversos , Paclitaxel/economia , Resultado do Tratamento
5.
Am J Hematol ; 88(5): 350-4, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23468307

RESUMO

Omacetaxine mepesuccinate (omacetaxine) is a first-in-class cephalotaxine with a unique mode of action, independent of BCR-ABL, that has shown promising activity in patients with chronic myeloid leukemia (CML). This multicenter, noncomparative, open-label phase 2 study evaluated the efficacy and safety of subcutaneous omacetaxine in CML patients with resistance or intolerance to two or more tyrosine kinase inhibitors (TKIs); results in patients in chronic phase are reported here. Patients received subcutaneous omacetaxine 1.25 mg/m² twice daily days 1-14 every 28 days until hematologic response (up to a maximum of six cycles), then days 1-7 every 28 days as maintenance. Primary endpoints were rates of hematologic response lasting >8 weeks and major cytogenetic response (MCyR). Forty-six patients were enrolled: all had received imatinib, 83% had received dasatinib, and 57% nilotinib. A median 4.5 cycles of omacetaxine were administered (range, 1-36). Hematologic response was achieved or maintained in 31 patients (67%); median response duration was 7.0 months. Ten patients (22%) achieved MCyR, including 2 (4%) complete cytogenetic responses. Median progression-free survival was 7.0 months [95% confidence interval (CI), 5.9-8.9 months], and overall survival was 30.1 months (95% CI, 20.3 months-not reached). Grade 3/4 hematologic toxicity included thrombocytopenia (54%), neutropenia (48%), and anemia (33%). Nonhematologic adverse events were predominantly grade 1/2 and included diarrhea (44%), nausea (30%), fatigue (24%), pyrexia (20%), headache (20%), and asthenia (20%). Subcutaneous omacetaxine may offer clinical benefit to patients with chronic-phase CML with resistance or intolerance to multiple TKI therapies.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Harringtoninas/uso terapêutico , Leucemia Mieloide de Fase Crônica/tratamento farmacológico , Inibidores da Síntese de Proteínas/uso terapêutico , Adulto , Idoso , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Antineoplásicos Fitogênicos/administração & dosagem , Antineoplásicos Fitogênicos/efeitos adversos , Células da Medula Óssea/efeitos dos fármacos , Células da Medula Óssea/patologia , Monitoramento de Medicamentos , Resistência a Múltiplos Medicamentos , Resistencia a Medicamentos Antineoplásicos , Feminino , Harringtoninas/administração & dosagem , Harringtoninas/efeitos adversos , Hematopoese/efeitos dos fármacos , Mepesuccinato de Omacetaxina , Humanos , Quimioterapia de Indução/efeitos adversos , Injeções Subcutâneas , Leucemia Mieloide de Fase Crônica/sangue , Leucemia Mieloide de Fase Crônica/patologia , Quimioterapia de Manutenção/efeitos adversos , Masculino , Pessoa de Meia-Idade , Inibidores de Proteínas Quinases/efeitos adversos , Inibidores de Proteínas Quinases/uso terapêutico , Inibidores da Síntese de Proteínas/administração & dosagem , Inibidores da Síntese de Proteínas/efeitos adversos , Proteínas Tirosina Quinases/antagonistas & inibidores , Análise de Sobrevida , Adulto Jovem
6.
Environ Technol ; 33(1-3): 307-12, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22519116

RESUMO

The photocatalytic degradation of reactive black-5 (RB-5) dye was studied using hydrothermally prepared TiO2 impregnated on activated carbon (AC) (20%, 40% TiO2:AC). Photodegradation efficiency of the prepared TiO2:AC catalysts were studied and compared with the commercial TiO2 (P25). These catalysts were characterized by using X-ray diffraction and scanning election microscope techniques. The experimental results showed that the effect of TiO2 impregnation on AC helped to optimize the amount of TiO2 impregnated and the amount of catalyst used for the reaction. The effect of different parameters, such as the initial concentration of dye solution and the catalyst amount, on the rate of photodegradation was also studied. The reduction in the chemical oxygen demand (88%) proves the mineralization of the RB-5 dye along with the colour removal.


Assuntos
Carvão Vegetal/química , Naftalenossulfonatos/química , Titânio/química , Poluentes Químicos da Água/química , Análise da Demanda Biológica de Oxigênio , Fotólise
7.
West J Emerg Med ; 22(2): 333-338, 2021 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-33856320

RESUMO

INTRODUCTION: This study reviews malpractice, also called medical professional liability (MPL), claims involving adult patients cared for in emergency departments (ED) and urgent care settings. METHODS: We conducted a retrospective review of closed MPL claims of adults over 18 years, from the Medical Professional Liability Association's Data Sharing Project database from 2001-2015, identifying 6,779 closed claims. Data included the total amount, origin, top medical specialties named, chief medical factors, top medical conditions, severity of injury, resolution, average indemnity, and defense costs of closed claims. RESULTS: Of 6,779 closed claims, 65.9% were dropped, withdrawn, or dismissed. Another 22.8% of claims settled for an average indemnity of $297,709. Of the 515 (7.6%) cases that went to trial, juries returned verdicts for the defendant in 92.6% of cases (477/515). The remaining 7.4% of cases (38/515) were jury verdicts for the plaintiff, with an average indemnity of $816,909. The most common resulting medical condition cited in paid claims was cardiac or cardiorespiratory arrest (10.4%). Error in diagnosis was the most common chief medical error cited in closed claims. Death was the most common level of severity listed in closed (38.5%) and paid (42.8%) claims. Claims reporting major permanent injury had the highest paid-to-closed ratio, and those reporting grave injury had the highest average indemnity of $686,239. CONCLUSION: This retrospective review updates the body of knowledge surrounding medical professional liability and represents the most recent analysis of claims in emergency medicine. As the majority of emergency providers will be named in a MPL claim during their career, it is essential to have a better understanding of the most common factors resulting in MPL claims.


Assuntos
Assistência Ambulatorial , Serviços Médicos de Emergência , Medicina de Emergência , Serviço Hospitalar de Emergência , Imperícia , Adulto , Assistência Ambulatorial/legislação & jurisprudência , Assistência Ambulatorial/métodos , Serviços Médicos de Emergência/legislação & jurisprudência , Serviços Médicos de Emergência/métodos , Serviço Hospitalar de Emergência/economia , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Humanos , Revisão da Utilização de Seguros , Responsabilidade Legal/economia , Masculino , Imperícia/legislação & jurisprudência , Imperícia/estatística & dados numéricos , Imperícia/tendências , Estudos Retrospectivos , Estados Unidos
8.
Vet World ; 14(5): 1067-1073, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-34220105

RESUMO

BACKGROUND AND AIM: Literature comparing the use of isoflurane and sevoflurane inhalation anesthetic agents in birds is scarce. This study aimed to evaluate the comparison of isoflurane and sevoflurane during induction, maintenance, and recovery of anesthesia in avian patients. MATERIALS AND METHODS: In this study, 24 injured avian patients (n=24) were selected randomly and divided into four groups during kite flying festival. In the present study, isoflurane and sevoflurane were used as induction and maintenance anesthetic agents, with and without butorphanol tartrate premedication agent in all the birds. Different physiological parameters were evaluated, namely, cloacal temperature (°F), heart rate (beats/min), respiratory rate (breaths/min), and SpO2 (%) were recorded at 0, 10, 20 min, and at recovery time. The quality of anesthesia was assessed on the basis of induction time, quality of induction, production of analgesia, muscle relaxation, body reflexes, recovery time, quality of recovery, sitting, standing, and complete recovery time (CRT). RESULTS: The mean±standard error value of induction time was 230.00±32.55, 280.00±25.29, 180.00±21.90, and 260.00±36.87 s, respectively, in Groups I, II, III, and IV. The feather plucking, pharyngeal, and toe pinching reflexes were noticed, when the birds were passing through the light plane of anesthesia during induction. Comparison of cloacal temperature at the time of recovery between Group-I versus Group-III revealed a significant difference (p<0.05). Comparison of mean respiratory rates at the time of recovery between Group-II versus Group-IV revealed a significant difference (p<0.05). Excellent quality of recovery was observed in all the groups of anesthetic protocols. Sitting, standing, and CRT were observed shortest in avian patients maintained with sevoflurane as compared to isoflurane. CONCLUSION: The quality of induction of anesthesia was rapid in avian patients when induced with sevoflurane as compared to isoflurane. Rapid onset of induction and recovery of anesthesia were found with sevoflurane followed by isoflurane. Induction and maintenance of anesthesia in avian patients with sevoflurane resulted in the lowest time required for sitting, standing, and CRT.

9.
Ann Oncol ; 21(3): 582-588, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19759183

RESUMO

BACKGROUND: The efficiency of haematopoietic stem and progenitor cells (HSPCs) is important when donor cell numbers are limiting. Stable white blood cell (WBC) and platelet engraftment is crucial for the outcome of haematopoietic stem cell transplantation (HSCT). DESIGN: This article evaluates CD26/dipeptidyl peptidase-IV expression on mobilised peripheral blood stem cell (PBSC) harvest of donors and its correlation with engraftment in HSCT. We have analysed CD26 expression on cells in various gates, that is, lymphocytes, monocytes, neutrophils and all populations using flow cytometry tool. RESULTS: Ours is the first study on human mobilised PBSC harvest from cancer patients or allogeneic related donors (n = 28) to demonstrate that increased CD26 expression leads to early engraftment in transplanted cancer patients. Correlation of CD26 expression with WBC engraftment was statistically significant (lymphocyte gate: P < 0.00001; monocyte gate: P < 0.00001; neutrophil gate: P < 0.00001; all populations: P < 0.00001). CD34 expression is a known predictor of engraftment. Nevertheless, there was no correlation between CD34 and CD26 expression in these cases. CONCLUSIONS: This study has given important leads indicating that CD26 expression may be an independent predictor of engraftment. Further study with large number of patients as well as study on circulatory CD26 may add valuable information towards improving current knowledge on CD26.


Assuntos
Dipeptidil Peptidase 4/metabolismo , Sobrevivência de Enxerto , Transplante de Células-Tronco Hematopoéticas , Células-Tronco Hematopoéticas/metabolismo , Neoplasias/metabolismo , Neoplasias/terapia , Adolescente , Adulto , Criança , Feminino , Citometria de Fluxo , Mobilização de Células-Tronco Hematopoéticas , Humanos , Técnicas Imunoenzimáticas , Leucaférese , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida , Doadores de Tecidos , Transplante Autólogo , Resultado do Tratamento , Adulto Jovem
10.
Ann Oncol ; 21(3): 556-561, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19828561

RESUMO

BACKGROUND: Baseline patient and disease characteristics are investigated in non-small-cell lung cancer (NSCLC) in an effort to predict response to treatment and optimize patients' outcomes. Histology has recently been identified in multiple NSCLC phase III trials as a predictive factor for survival in patients receiving pemetrexed regimens. METHODS: Cox-adjusted models were used to further analyze a randomized phase III study in 1725 chemonaive patients with stage IIIB or IV NSCLC and Eastern Cooperative Oncology Group performance status (PS) of zero or one who received cisplatin plus pemetrexed (CP; C, 75 mg/m(2) and P, 500 mg/m(2)) or cisplatin plus gemcitabine (CG; C, 75 mg/m(2) and G, 1250 mg/m(2)) every 21 days. RESULTS: Histology was confirmed to be predictive of CP efficacy and may also be prognostic. Gender, ethnicity, disease stage, smoking status, and PS were not predictive in either treatment arm but were shown to be prognostic in the nonsquamous population, consistent with the results in the overall NSCLC population. CONCLUSIONS: NSCLC histology significantly predicts efficacy outcomes for patients receiving pemetrexed. Several other factors are prognostic for the overall study population as well as a subset of patients with advanced nonsquamous NSCLC.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Grandes/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma de Células Escamosas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Adenocarcinoma/patologia , Adolescente , Adulto , Idoso , Carcinoma de Células Grandes/patologia , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma de Células Escamosas/patologia , Cisplatino/administração & dosagem , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Feminino , Glutamatos/administração & dosagem , Guanina/administração & dosagem , Guanina/análogos & derivados , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Pemetrexede , Taxa de Sobrevida , Resultado do Tratamento , Adulto Jovem , Gencitabina
11.
Phys Med Biol ; 54(8): 2541-55, 2009 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-19349658

RESUMO

In their classic paper, Yu et al (1998 Phys. Med. Biol. 43 91) investigated the interplay between tumor motion caused by breathing and dynamically collimated, intensity-modulated radiation delivery. The paper's analytic model assumed an idealized, sinusoidal pattern of motion. In this work, we investigate the effect of tumor motion based on patients' breathing patterns for typical tomotherapy treatments with field widths of 1.0 and 2.5 cm. The measured breathing patterns of 52 lung- and upper-abdominal-cancer patients were used to model a one-dimensional motion. A convolution of the measured beam-dose profiles with the motion model was used to compute the dose-distribution errors, and the positive and negative dose errors were recorded for each simulation. The dose errors increased with increasing motion magnitude, until the motion was similar in magnitude to the field width. For the 1.0 cm and 2.5 cm field widths, the maximum dose-error magnitude exceeded 10% in some simulations, even with breathing-motion magnitudes as small as 5 mm and 10 mm, respectively. Dose errors also increased slightly with increasing couch speed. We propose that the errors were due to subtle drifts in the amplitude and frequency of breathing motion, as well as changes in baseline (exhalation) position, causing both over- and under-dosing of the target. The results of this study highlight potential breathing-motion-induced dose delivery errors in tomotherapy. However, for conventionally fractionated treatments, the dose delivery errors may not be co-located and may average out over many fractions, although this may not be true for hypofractionated treatments.


Assuntos
Movimento , Neoplasias/fisiopatologia , Neoplasias/radioterapia , Radiometria/métodos , Respiração , Humanos , Modelos Biológicos , Imagens de Fantasmas , Reprodutibilidade dos Testes , Fatores de Tempo , Água
12.
Genet Mol Res ; 8(1): 1-7, 2009 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-19224461

RESUMO

Acute promyelocytic leukemia (APL) is characterized by a reciprocal translocation, t(15;17)(q22;q11-21), resulting in the fusion of the promyelocytic leukemia (PML) and retinoic acid receptor alpha (RARalpha) genes. Using conventional cytogenetic methods, these translocations are normally detected in about 70-90% of patients; most negative results are due to technical problems or cryptic variants. These masked PML/RARalpha fusions can be identified by molecular analyses, such as reverse transcriptase-polymerase chain reaction (RT-PCR) or fluorescence in situ hybridization (FISH). Approximately 5 to 10% of all APL cases reported do not show PML/RARalpha fusion transcripts, even with dual-colored FISH. We report three of 40 diagnosed APL cases that showed morphological, cytochemical, and immunophenotypic features of hypergranular APL, but did not show a PML/RARalpha fusion signal or any of its variants, on FISH. All cases were identified by RT-PCR, which was further confirmed by cDNA sequencing. Conventional karyotyping showed other clonal aberrations in these cases, but failed to show t(15;17) or any other variants or complex translocations.


Assuntos
Cromossomos Humanos Par 15/genética , Cromossomos Humanos Par 17/genética , Proteínas de Fusão Oncogênica/genética , Translocação Genética/genética , Adulto , Feminino , Humanos , Hibridização in Situ Fluorescente , Cariotipagem , Masculino , Pessoa de Meia-Idade , RNA Mensageiro/análise
13.
South Asian J Cancer ; 8(2): 73-79, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31069181

RESUMO

Lung cancer has been the most common cancer in the world for several decades. The non-small cell lung cancer (NSCLC) constitutes approximately about 80% of the total cases of lung cancer. Therapeutic interventions in NSCLC have shifted to the target-based approach from histology-based approach, and this has completely changed the face of the management of NSCLC. Developing countries, such as India, have very limited data compiled about the prevalence and treatment practices of lung cancer, despite a large burden of the disease. However, in recent times, there has been a lot of data generated in this regard. This article is an attempt to collate and shine light on the available data for the first-line treatment of NSCLC in India keeping in mind the current standards of care in this area.

14.
Genet Mol Res ; 7(4): 1138-49, 2008 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-19048492

RESUMO

Different forms of p210 are produced by alternative splicing, namely b2a2 and b3a2. There have been many contrasting data establishing a relationship between the two Bcr/Abl transcripts and platelet counts and also response to treatment. However, the data published to date have been on a small group of patients. The aim of the present study was to determine whether there was any difference between clinical and hematological parameters at diagnosis between the two Bcr/Abl fusion transcripts in our population, and whether the two transcripts responded differently or similarly to imatinib treatment. RT-PCR was performed in 202 cases for detection of Bcr/Abl transcripts in newly diagnosed chronic myelogenous leukemia cases in one year. The two transcripts were compared and correlated with clinical, hematological and FISH data and with response to treatment. A total of 138 cases were of b3a2 and 64 were of b2a2 transcript. There was no correlation between the hematological parameters and the type of transcript. There was a significant association of blast crisis with b2a2, especially with myeloid blast crisis. When compared to FISH results, 10% of b3a2 were found to have a significant association with 5'Abl deletion as compared to 3% of b2a2. On analyzing the therapeutic response, we did not find any difference between the two transcripts. In conclusion, our findings confirm that the b3a2 type transcript is not significantly associated with thrombocytosis, that the short transcript, b2a2, occurs with acute phase, i.e., blast crisis, and that there is no difference in treatment response between the two transcripts. However, further studies are required to understand the molecular pathways involved in the Bcr/Abl mechanism.


Assuntos
Proteínas de Fusão bcr-abl/genética , Leucemia Mielogênica Crônica BCR-ABL Positiva/diagnóstico , Análise Citogenética , Proteínas de Fusão bcr-abl/sangue , Testes Hematológicos , Humanos , Hibridização in Situ Fluorescente , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Leucemia Mielogênica Crônica BCR-ABL Positiva/genética , Trombocitose/genética , Trombocitose/metabolismo , Transcrição Gênica
15.
Natl Med J India ; 21(4): 171-4, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19267037

RESUMO

BACKGROUND: Fludarabine has been reported to be an effective drug for the treatment of chronic lymphocytic leukaemia (CLL) and indolent lymphomas. However, its safety and efficacy in Indian patients has not been studied. We retrospectively analysed our experience with fludarabine in low grade lymphomas and CLL. METHODS: The records of all patients with low grade lymphoma or CLL who received fludarabine between April 1999 and November 2006 were analysed. Response evaluation was done as per the National Cancer Institute-Working Group guidelines for CLL and International Workshop criteria for non-Hodgkin lymphomas, respectively, in those patients who received at least 3 cycles of fludarabine. Toxicity was graded as per the common terminology criteria for adverse events, version 3.0. Median event-free survival was obtained using Kaplan-Meier survival analysis. RESULTS: Forty-seven patients were included in the study and 189 cycles were administered (median: 4 cycles per patient). Sixteen patients had a treatment delay, 14 due to myelosuppression. Twenty-five patients had low grade lymphoma and 22 had CLL. The response was evaluable in 22 patients with low grade lymphoma and 20 with CLL. The overall response rate for CLL was 100% in those treated upfront (n=9) and 55% in those with relapsed disease (n=11). The overall response rate for low grade lymphoma was 88% (63% complete remission) in untreated patients and 79% (43% complete remission) in those with relapsed disease. Common adverse events were myelosuppression and infection. Two patients died of sepsis and 4 due to disease progression on treatment. Median event-free survival for patients treated upfront with fludarabine was 31.4 months. CONCLUSION: In our patient population, response to fludarabine is similar to that in the published literature. Our patients had a higher frequency of haematological toxicity.


Assuntos
Antineoplásicos/uso terapêutico , Leucemia Linfoide/tratamento farmacológico , Linfoma/tratamento farmacológico , Vidarabina/análogos & derivados , Adulto , Idoso , Antineoplásicos/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida , Vidarabina/efeitos adversos , Vidarabina/uso terapêutico
16.
Indian J Cancer ; 45(4): 142-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19112201

RESUMO

Therapeutic management of multiple myeloma (MM) for the last several decades has mainly involved regimens based on use of glucocorticoids and cytotoxic chemotherapeutics. Despite progress in delineating the activity of such regimens, at either conventional or high doses, MM has remained an incurable disease. This has sparked major interest in the development of novel therapies that in part capitalize on recent advances in our understanding of the biology of MM, including the molecular mechanisms by which MM cell-host bone marrow (BM) interactions regulate tumor-cell growth, survival, and drug resistance in the BM milieu. Herein, we review the latest progress in the development of these novel anti-MM therapies, with major focus on therapies which have translated from preclinical evaluation to clinical application, including thalidomide and its more potent immunomodulatory derivatives (IMiD), the first-in-class proteasome inhibitor bortezomib (formerly known as PS-341). Search strategy included Medline using the terms 'Myeloma and Newer Drugs' citations relevant to treatment guidelines issued in 1999 and 2008 were screened.


Assuntos
Antineoplásicos/uso terapêutico , Mieloma Múltiplo/terapia , Terapia Biológica , Ácidos Borônicos/uso terapêutico , Bortezomib , Humanos , Mieloma Múltiplo/metabolismo , Pirazinas/uso terapêutico , Talidomida/uso terapêutico
17.
South Asian J Cancer ; 7(2): 72-78, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29721467

RESUMO

My suggestion: There is no difference in survival of breast cancer patients treated with either mastectomy or with breast conservation therapy combined with external beam radiotherapy. A positive margin (s) is an important factor contributing to the increased risk of local recurrence. However, in published literature, there is a lack of consensus on the definition of acceptable margin (s). As a result decision process about need for re-excision after positive margins remains uncrear.

18.
South Asian J Cancer ; 7(2): 115-117, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29721476

RESUMO

This manuscript provides a practical and easy to use consensus recommendation to community oncologists on how to manage gestational breast cancer.

19.
South Asian J Cancer ; 7(2): 110-114, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29721475

RESUMO

Young women diagnosed with cancer today have a greater chance of long-term survival than ever before. Successful survivorship for this group of patients includes maintaining a high quality of life after a cancer diagnosis and treatment; however, lifesaving treatments such as chemotherapy, radiation, and surgery can impact survivors by impairing reproductive and endocrine health. Expert oncologists along with reproductive medicine specialists discuss fertility preservation options in this chapter since fertility preservation is becoming a priority for young women with breast cancer. This expert group used data from published literature, practical experience and opinion of a large group of academic oncologists to arrive at these practical consensus recommendations for the benefit of community oncologists.

20.
South Asian J Cancer ; 7(2): 132-136, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29721480

RESUMO

Axillary lymph node involvement is a very important poor prognostic factor in the clinical staging and management of breast cancer patients. Traditionally, axillary lymph node dissection (ALND) has been used for determining the status of the axillary lymph nodes. More recently the sentinel lymph node biopsy (SLNB) procedure has gained wider acceptance as the standard of care, having the advantage of being less invasivewhile providing good accuracy. This expert group used data from published literature, practical experience and opinion of a large group of academic oncologists to arrive at these practical consensus recommendations in regards with the use of the two different procedures and other issues in patients with early breast cancer for the benefit of community oncologists.

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