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1.
Cureus ; 16(8): e66785, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39268309

RESUMO

Malignant small bowel obstruction (mSBO) is a frequent complication in patients with gastrointestinal or gynecologic cancers. For those with inoperable cancers and persistent obstructive symptoms, symptom palliation with a percutaneous gastrostomy tube (PGT) may be required. However, excessive fluid loss from the PGT can lead to significant fluid, electrolyte, and acid-base imbalances. We present a case of a man with metastatic colonic adenocarcinoma who developed mSBO, acute kidney injury, and metabolic alkalosis, all of which were effectively managed with octreotide.

2.
J. bras. nefrol ; 44(2): 134-142, June 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1386021

RESUMO

Abstract The high burden of kidney disease, global disparities in kidney care, and the poor outcomes of kidney failure place a growing burden on affected individuals and their families, caregivers, and the community at large. Health literacy is the degree to which individuals and organizations have, or equitably enable individuals to have, the ability to find, understand, and use information and services to make informed health-related decisions and actions for themselves and others. Rather than viewing health literacy as a patient deficit, improving health literacy lies primarily with health care providers communicating and educating effectively in codesigned partnership with those with kidney disease. For kidney policy makers, health literacy is a prerequisite for organizations to transition to a culture that places the person at the center of health care. The growing capability of and access to technology provides new opportunities to enhance education and awareness of kidney disease for all stakeholders. Advances in telecommunication, including social media platforms, can be leveraged to enhance persons' and providers' education. The World Kidney Day declares 2022 as the year of "Kidney Health for All" to promote global teamwork in advancing strategies in bridging the gap in kidney health education and literacy. Kidney organizations should work toward shifting the patient-deficit health literacy narrative to that of being the responsibility of health care providers and health policy makers. By engaging in and supporting kidney health-centered policy making, community health planning, and health literacy approaches for all, the kidney communities strive to prevent kidney diseases and enable living well with kidney disease.


Resumo A elevada carga da doença renal, disparidades globais no cuidado renal e desfechos ruins da insuficiência renal impõem uma sobrecarga crescente aos indivíduos afetados e suas famílias, cuidadores e a própria comunidade geral. Educação em saúde é o grau em que indivíduos e organizações têm, ou que igualmente permitem que indivíduos tenham, capacidade de encontrar, compreender e utilizar informações e serviços para tomar decisões e ações conscientes relacionadas à saúde para si e outros. Mais do que enxergar educação em saúde como um problema dos pacientes, a melhoria dessa educação depende principalmente da comunicação e educação efetiva dos profissionais em parceria com aqueles que apresentam doença renal. Para formuladores de políticas renais, educação em saúde é pré-requisito para que organizações migrem para uma cultura que coloque a pessoa no centro dos cuidados. A crescente capacidade e acesso à tecnologia oferecem novas oportunidades para melhorar educação e conscientização sobre doença renal para todas as partes interessadas. Avanços nas telecomunicações, incluindo redes sociais, podem ajudar a melhorar a educação de pessoas e provedores. O Dia Mundial do Rim declara 2022 como o ano da "Saúde dos Rins para Todos" promovendo trabalho em equipe global no avanço de estratégias para preencher a lacuna na educação e conhecimento em saúde renal. Organizações renais devem trabalhar para mudar a narrativa da educação em saúde como um problema de pacientes, para sendo responsabilidade dos profissionais e formuladores de políticas. Ao engajar-se e apoiar formulação de políticas centradas na saúde renal, planejamento de saúde comunitária e abordagens de educação em saúde para todos, comunidades renais esforçam-se para prevenir doenças renais e permitir viver bem com elas.

4.
Nephron ; 146(2): 220-226, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34883493

RESUMO

Living donor kidney transplantation is an effective strategy to mitigate the challenges of solid organ shortage. However, being a living kidney donor is not without risk, as donors may encounter short- and long-term complications including the risk of developing chronic kidney disease, end-stage kidney disease, hypertension, and possible pregnancy-related complications. Although the evaluation of potential living donors is a thorough and meticulous process with the intention of decreasing the chance of complications, particularly in donors who have lifetime risk projection, risk factors for kidney disease including genetic predispositions may be missed because they are not routinely investigated. This type of testing may not be offered to patients due to variability and decreased penetrance of symptoms and lack of availability of appropriate genetic testing and genetic specialists. We report a case of a middle-aged woman with a history of gestational diabetes and preeclampsia who underwent an uneventful living kidney donation. She developed postdonation nonnephrotic range proteinuria and microscopic hematuria. Given the risk of biopsy with a solitary kidney, genetic testing was performed and revealed autosomal dominant Alport syndrome. Our case underscores the utility of genetic testing. Hopefully, future research will examine the incorporation of predonation genetic testing into living kidney donor evaluation.


Assuntos
Transplante de Rim , Nefrite Hereditária , Feminino , Testes Genéticos , Humanos , Rim , Doadores Vivos , Pessoa de Meia-Idade , Nefrectomia/efeitos adversos , Nefrite Hereditária/genética
5.
Arch. argent. pediatr ; 119(3): 213-213, Junio 2021. tab, ilus
Artigo em Inglês | LILACS, BINACIS | ID: biblio-1223297

RESUMO

Vivir con enfermedad renal crónica se asocia con penurias para el paciente y sus cuidadores. Su empoderamiento, que incluye a los familiares o los amigos comprometidos en los cuidados, puede ayudar a minimizar la carga y las consecuencias de los síntomas asociados a la enfermedad renal crónica y permitir las actividades cotidianas. Es necesario ampliar el foco sobre vivir bien con la enfermedad renal y reinsertarse en la vida, con énfasis en que los pacientes tengan sus controles.El World Kidney Day (WKD) Joint Steering Committee (Comité Directivo Conjunto del Día Mundial del Riñón) ha declarado al 2021 como el año de "Vivir bien con enfermedad renal" en un esfuerzo por aumentar la educación y la conciencia sobre el objetivo importante del empoderamiento del paciente y su participación en la vida. Esto reclama el desarrollo e implementación de evaluaciones validadas de la evolución referida por los pacientes para medir e incluir las áreas de participación en la vida en los cuidados de rutina. Esto podría ser respaldado por las agencias reguladoras como una métrica de la calidad de la atención o para respaldar las declaraciones de etiquetado de medicamentos y dispositivos. Las agencias financiadoras podrían establecer llamados dirigidos a investigar las prioridades de los pacientes. Los pacientes con enfermedad renal y sus cuidadores deberían sentirse respaldados para vivir bien mediante esfuerzos concertados de los servicios de atención renal, incluso durante las pandemias. En el programa de bienestar general para pacientes con enfermedad renal, se debe reiterar la necesidad de prevención. Se debe promover la detección precoz acompañada de un curso prolongado de bienestar a pesar de la enfermedad renal, después de programas de prevención efectiva secundaria y terciaria. El WKD 2021 continua su reclamo de aumentar la conciencia de la importancia de las medidas preventivas entre las comunidades, los profesionales y los responsables de las políticas, aplicable tanto a los países desarrollados como a aquellos en vías de desarrollo.


Living with chronic kidney disease (CKD) is associated with hardships for patients and their care-partners. Empowering patients and their care-partners, including family members or friends involved in their care, may help minimize the burden and consequences of CKD related symptoms to enable life participation. There is a need to broaden the focus on living well with kidney disease and re-engagement in life, including an emphasis on patients being in control. The World Kidney Day (WKD) Joint Steering Committee has declared 2021 the year of "Living Well with Kidney Disease" in an effort to increase education and awareness on the important goal of patient empowerment and life participation. This calls for the development and implementation of validated patient-reported outcome measures to assess and address areas of life participation in routine care. It could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients. Patients with kidney disease and their care-partners should feel supported to live well through concerted efforts by kidney care communities including during pandemics. In the overall wellness program for kidney disease patients, the need for prevention should be reiterated. Early detection with a prolonged course of wellness despite kidney disease, after effective secondary and tertiary prevention programs, should be promoted. WKD 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policy makers, applicable to both developed and developing countries.


Assuntos
Humanos , Masculino , Feminino , Insuficiência Renal Crônica/prevenção & controle , Promoção da Saúde , Acessibilidade aos Serviços de Saúde , Diagnóstico Precoce , Insuficiência Renal Crônica/terapia , Rim
6.
Rev. nefrol. diál. traspl ; 41(1): 2-10, mar. 2021. graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1377116

RESUMO

Abstrac Living with chronic kidney disease (CKD) is associated with hardships for patients and their care-partners. Empowering patients and their care-partners, including family members or friends involved in their care, may help minimize burden and consequences of CKD related symptoms to enable life participation. There is a need to broaden the focus on living well with kidney disease and re-engagement in life, including emphasis on patients being in control. The World Kidney Day (WKD)Joint Steering Committee has declared 2021 the year of "Living Well with Kidney Disease" to increase education and awareness on the important goal of patient empowerment and life participation. This calls for the development and implementation of validated patient-reported outcome measures to assess and address areas of life participation in routine care. It could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients. Patients with kidney disease and their care-partners should feel supported to live well through concerted efforts by kidney care communities including during pandemics.In the overall wellness program for kidney disease patients, the need for prevention should be reiterated. Early detection with prolonged course of wellness despite kidney disease, after effective secondary and tertiary prevention programs, should be promoted. WKD 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policy makers, applicable to both developed and developing countries.


Resumen Vivir con unaenfermedad renal crónica (ERC) se asocia con dificultadestanto para lospacientescomo para suscuidadores. Empoderar a lospacientes y a suscuidadores, incluidoslosfamiliares y amigos que losasisten, minimiza la carga y las consecuencias de lossíntomas de la ERC y posibilitaparticiparenactividadescotidianas. Esnecesarioampliar el enfoque para lograrunabuenacalidad de vida para lospacientes con nefropatías y que puedanretomarsuvidadiaria, y hacerhincapiéen que estostengan el control. El ComitéDirectivo del Día Mundial del Riñón (DMR) ha declarado el 2021 el año de "Vivirbien con unaenfermedad renal" para aumentarlosconocimientos y generarconcienciaacerca de la importancia de empoderar al paciente y de que participenen las actividadescotidianas. Estoexige el desarrollo y la implementación de criterios de valoración de losresultadoscomunicadosporlospacientes para evaluar y enfocarseenáreas de la vidacotidianaen el cuidado. Podríacontarse con el aval de organismosregulatorioscomomedida de la calidad de cuidado o para darrespuesta a losreclamosacerca del etiquetado de medicamentos y dispositivos. Las agencias de financiamientopodríanlanzarconvocatorias para investigaciones que se centrenen las prioridades de lospacientes. Los pacientes con enfermedad renal y suscuidadoresdebenrecibirapoyo para llevarunabuenavida a través del esfuerzocoordinado de las sociedades de investigación renal, incluso, duranteunapandemia. Esprecisoreiterar la importancia de la prevenciónenlosprogramasintegrales de bienestar para pacientesrenales. Deben promoverse la deteccióntemprana con evoluciónprolongada del bienestar a pesar de la enfermedad renal luego de programas de prevenciónsecundarios y terciarios. El DMR 2021 siguefomentandouna mayor concienciaacerca de la importancia de las medidaspreventivasen la población, profesionales y legisladores, que se apliquenenpaísesdesarrollados y envías de desarrollo.

7.
Curr Opin Nephrol Hypertens ; 30(1): 14-26, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33186218

RESUMO

PURPOSE OF REVIEW: Although a widely recognized and complex pathophysiological condition, sarcopenic obesity remains less appreciated and may elude diagnosis and workup in both kidney transplant waitlisted candidates and kidney transplant recipients. The lack of consensus definition, and practical diagnostic tools for evaluating waitlisted candidates and transplant recipients are barriers to early detect and initiate therapeutic management for sarcopenic obesity. Although sarcopenia leads to poor clinical outcomes, posttransplant obesity yields conflicting results. Exercise and nutritional managements are common therapies for sarcopenic obese patients; however, surgery weight loss or bariatric surgery in both transplant candidates and potential living kidney donors shows promising benefits for kidney transplant access in waitlist obese candidates but may require to be selected for appropriate patients. RECENT FINDINGS: Pathogenesis and management for sarcopenia and obesity are interconnected. The benefits of exercise to improve muscle mass and function is clear in waitlist kidney transplant candidates and transplant recipients. However, there are several barriers for those to increase exercise and improve physical activity including patient, provider, and healthcare or environmental factors. The advantages of fat mass reduction to lose weight can promote muscle mass and strength. However, epidemiological data regarding the obesity paradox in dialysis-dependent patients when overnutrition provides survival benefits for this population should be taken into account when performing weight loss especially bariatric surgery. SUMMARY: Barriers in providing optimal care to kidney transplant waitlisted candidates and transplant recipients may partly result from underdiagnosis of sarcopenic obesity; notwithstanding that this entity has increasingly been more recognized. Mechanistic studies to better understand pathogenesis of sarcopenic obesity will help determine pathogenesis and clinical tools for diagnosis of this entity, which can facilitate further studies related to the outcomes and weight management to ultimately improve kidney transplant outcomes.


Assuntos
Cirurgia Bariátrica , Falência Renal Crônica/cirurgia , Transplante de Rim , Obesidade , Sarcopenia , Cirurgia Bariátrica/efeitos adversos , Exercício Físico , Humanos , Transplante de Rim/efeitos adversos , Doadores Vivos , Força Muscular , Obesidade/diagnóstico , Obesidade/epidemiologia , Obesidade/etiologia , Obesidade/terapia , Assistência Perioperatória , Insuficiência Renal Crônica/cirurgia , Sarcopenia/diagnóstico , Sarcopenia/epidemiologia , Sarcopenia/etiologia , Sarcopenia/terapia , Resultado do Tratamento , Listas de Espera , Redução de Peso
8.
Curr Opin Nephrol Hypertens ; 30(1): 63-74, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33186221

RESUMO

PURPOSE OF REVIEW: Immunological factors are a major cause of kidney allograft loss. Calcineurin inhibitors (CNIs) have improved short-term kidney allograft survival; however, they in turn contribute to long-term kidney allograft loss from chronic CNI nephrotoxicity. Tolerance induction in transplantation can avoid the long-term adverse effects of immunosuppressive medications. This review aims to critically discuss recent efforts in inducing transplantation tolerance. RECENT FINDINGS: Tolerance induction mediated by chimerism has shown some promise in minimizing or even complete withdrawal of immunosuppressive treatments in kidney allograft recipients. There has been a number of approaches as varied as the number of centres conducting these trials. However, they can be grouped into those mediated by transient microchimerism and those facilitated by more stable macro or full donor chimerism. The success rates in terms of long-term drug-free graft survival has been limited in microchimerism-mediated tolerance induction approaches. Mixed macrochimerism of less than 50% donor may be unstable with mostly the recipient's native immune system overpowering the donor chimeric status.Tolerance induction leading to chimerism has been limited to living donor kidney transplantation and additional long-term outcomes are required. Furthermore, immune monitoring after tolerance induction has faced a limitation in studying due to a lack of sufficient study participants and appropriate study controls. SUMMARY: Tolerance induction is one of several strategies used to prolong kidney allograft survival, but it has not been routinely utilized in clinical practice. However, future applications from the trials to clinical practice remain limited to living donor kidney transplantation. Once further data regarding tolerance inductions exist and practicality becomes widely accepted, tolerance induction may shift the paradigm in the field of kidney transplantation to achieve the best possible outcome of 'One Organ for Life'.


Assuntos
Quimerismo , Sobrevivência de Enxerto , Tolerância Imunológica , Transplante de Rim , Insuficiência Renal Crônica/cirurgia , Aloenxertos/imunologia , Ensaios Clínicos como Assunto , Previsões , Facilitação Imunológica de Enxerto/métodos , Facilitação Imunológica de Enxerto/tendências , Sobrevivência de Enxerto/efeitos dos fármacos , Sobrevivência de Enxerto/imunologia , Humanos , Tolerância Imunológica/efeitos dos fármacos , Tolerância Imunológica/imunologia , Imunossupressores/efeitos adversos , Imunossupressores/imunologia , Imunossupressores/uso terapêutico , Rim/imunologia , Rim/cirurgia , Transplante de Rim/efeitos adversos , Doadores Vivos , Condicionamento Pré-Transplante , Tolerância ao Transplante/efeitos dos fármacos , Tolerância ao Transplante/imunologia
9.
Braz. j. med. biol. res ; 54(6): e11098, 2021. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1249306

RESUMO

Living with chronic kidney disease (CKD) is associated with hardships for patients and their care-partners. Empowering patients and their care-partners, including family members or friends involved in their care, may help minimize burden and consequences of CKD-related symptoms to enable life participation. There is a need to broaden the focus on living well with kidney disease and re-engagement in life, including emphasis on patients being in control. The World Kidney Day (WKD) Joint Steering Committee has declared 2021 the year of "Living Well with Kidney Disease" in an effort to increase education and awareness on the important goal of patient empowerment and life participation. This calls for the development and implementation of validated patient-reported outcome measures to assess and address areas of life participation in routine care. It could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients. Patients with kidney disease and their care-partners should feel supported to live well through concerted efforts by kidney care communities including during pandemics. In the overall wellness program for kidney disease patients, the need for prevention should be reiterated. Early detection with prolonged course of wellness despite kidney disease, after effective secondary and tertiary prevention programs, should be promoted. WKD 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policy makers, applicable to both developed and developing countries.


Assuntos
Humanos , Insuficiência Renal Crônica/prevenção & controle , Acessibilidade aos Serviços de Saúde , Diagnóstico Precoce , Promoção da Saúde , Rim
10.
Transpl Int ; 33(11): 1503-1515, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32779214

RESUMO

Adolescent age may be a high-risk period for kidney allograft failure. However, the knowledge on this topic is limited mostly to the first transplant. Among 20 960 patients aged ≤21 years at the first kidney transplantation from the US Renal Data System, we evaluated the association of age at the first kidney transplant with risk for the first and subsequent graft failures (1st, 2nd, and 3rd) using the conditional risk set model for recurrent time-to-event data. The median age was 15 (interquartile range: 9-18) years, and 18% received transplants twice or more during a median follow-up of 9.7 years. The risk for graft failures was highest in 16 to <18 years old with an adjusted hazard ratio (aHR) of 1.93 (95% CI, 1.73-2.15; reference: <3 years). When separately analyzed, the highest risk was observed in 17, 19, and 21 years old for the first, second, and third transplant, respectively. Those 16 to <18 years were also strongly associated with the highest risk for death after returning to dialysis (aHR, 4.01; 95% CI, 2.82-5.71). Adolescent recipients remain at high risk for allograft failure for a long time, which may result in high mortality risk, even though they surpass this high-risk period soon after the first transplant.


Assuntos
Falência Renal Crônica , Transplante de Rim , Adolescente , Aloenxertos , Rejeição de Enxerto , Sobrevivência de Enxerto , Humanos , Falência Renal Crônica/cirurgia , Transplante de Rim/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Transplantados , Estados Unidos/epidemiologia
11.
Kidney Int Rep ; 4(9): 1205-1218, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31517140

RESUMO

Persons with acquired solitary kidney, including those who have had a unilateral nephrectomy for living kidney donation, renal malignancies, or trauma, have decreased renal mass that leads to increased intraglomerular pressure and glomerular hyperfiltration. These physiologic adaptations of solitary kidney may exacerbate other preexisting and genetic conditions that could create a predisposition to or worsen glomerular pathologies, leading to unfavorable renal outcomes. Hence, these persons may benefit from special care and lifestyle modifications, including nutritional interventions. There is a lack of consensus and evidence for proper surveillance and management after nephrectomy, and misconceptions in both directions of having a "normal" versus "abnormal" kidney status may cause confusion among patients and healthcare providers pertaining to long-term kidney health monitoring and management. We have reviewed available data on the impact of lifestyle modifications, particularly nutritional measures, and pharmacologic interventions, on short- and long-term outcomes after nephrectomy. We recommend avoidance of excessively high dietary protein intake (>1 g/kg per day) and high dietary sodium intake (>4 grams/d), adequate dietary fiber intake from plant-based foods, a target body mass index of <30 kg/m2 (in non-athletes and non-bodybuilders), and judicious management of risk factors of progressive chronic kidney disease (CKD), and future studies should help to better determine optimal care practices for these persons.

12.
Semin Nephrol ; 38(4): 346-354, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-30082055

RESUMO

Successful renal transplantation is a highly effective endeavor that improves and prolongs the lives of patients with chronic kidney disease. Transplant surgery and immunosuppression carries risk and the demand for donor kidneys outstrips supply by far. These realities mandate thoughtful allocation and utilization of this limited resource to select candidates. As the criteria for candidates and donor grafts continue to expand, the field must adapt and seek new approaches. The complex process-from evaluation of candidates, transplant surgery, immunosuppression, and follow-up care after transplantation-is, of necessity, tightly structured and regulated. However, each patient has distinctive characteristics that must be taken into account to optimize individual outcomes. The personalized approach to renal transplantation, which uses precision medicine concepts, identifies unique aspects of candidates/recipients that require consideration using a combination of time-honored guidelines, emerging concepts, new medications, and refinements of care.


Assuntos
Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Falência Renal Crônica/cirurgia , Transplante de Rim/métodos , Medicina de Precisão , Humanos , Seleção de Pacientes
13.
Prog Cardiovasc Dis ; 61(2): 168-181, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29981348

RESUMO

While obesity is associated with a variety of complications including diabetes, hypertension, cardiovascular disease and premature death, observational studies have also found that obesity and increasing body mass index (BMI) can be linked with improved survival in certain patient populations, including those with conditions marked by protein-energy wasting and dysmetabolism that ultimately lead to cachexia. The latter observations have been reported in various clinical settings including end-stage renal disease (ESRD) and have been described as the "obesity paradox" or "reverse epidemiology", engendering controversy. While some have attributed the obesity paradox to residual confounding in an effort to "debunk" these observations, recent experimental discoveries provide biologically plausible mechanisms in which higher BMI can be linked to longevity in certain groups of patients. In addition, sophisticated epidemiologic methods that extensively adjusted for confounding have found that the obesity paradox remains robust in ESRD. Furthermore, novel hypotheses suggest that weight loss and cachexia can be linked to adverse outcomes including cardiomyopathy, arrhythmias, sudden death and poor outcomes. Therefore, the survival benefit observed in obese ESRD patients can at least partly be derived from mechanisms that protect against inefficient energy utilization, cachexia and protein-energy wasting. Given that in ESRD patients, treatment of traditional risk factors has failed to alter outcomes, detailed translational studies of the obesity paradox may help identify innovative pathways that can be targeted to improve survival. We have reviewed recent clinical evidence detailing the association of BMI with outcomes in patients with chronic kidney disease, including ESRD, and discuss potential mechanisms underlying the obesity paradox with potential for clinical applicability.


Assuntos
Tecido Adiposo/fisiopatologia , Rim/fisiopatologia , Obesidade/fisiopatologia , Insuficiência Renal Crônica/fisiopatologia , Pesquisa Translacional Biomédica , Tecido Adiposo/metabolismo , Adiposidade , Animais , Caquexia/metabolismo , Caquexia/mortalidade , Caquexia/fisiopatologia , Metabolismo Energético , Nível de Saúde , Hemodinâmica , Humanos , Rim/metabolismo , Falência Renal Crônica/metabolismo , Falência Renal Crônica/mortalidade , Falência Renal Crônica/fisiopatologia , Obesidade/metabolismo , Obesidade/mortalidade , Prognóstico , Fatores de Proteção , Insuficiência Renal Crônica/metabolismo , Insuficiência Renal Crônica/mortalidade , Fatores de Risco , Redução de Peso
14.
Arterioscler Thromb Vasc Biol ; 35(1): 237-42, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25324574

RESUMO

OBJECTIVE: Matrix gla protein is a vitamin K-dependent inhibitor of medial arterial calcification whose synthesis and activity are blocked by warfarin. Warfarin induces arterial calcification in experimental models, but whether this occurs in humans is unclear. This was addressed by examining breast arterial calcification, which is exclusively medial and easily identified on mammograms. APPROACH AND RESULTS: Screening mammograms from women with current, past, or future warfarin use were examined for the presence of arterial calcification and compared with mammograms obtained in untreated women matched for age and diabetes mellitus. Women with a serum creatinine >2.0 mg/dL or a history of end-stage renal disease were excluded. In 451 women with mammograms performed after ≥1 month of warfarin therapy, the prevalence of arterial calcification was 50% greater than in 451 untreated women (39.0% versus 25.9%; P<0.0001). However, in 159 mammograms performed before warfarin therapy, the prevalence of arterial calcification was not increased (26.4% versus 25.8%). The increased prevalence varied with duration of treatment, from 25.0% for <1 year to 74.4% for >5 years. In a multivariable logistic model, only age and duration of warfarin, but not the period of time after stopping warfarin, were significant determinants of arterial calcification in women with current or past warfarin use. CONCLUSIONS: The prevalence of breast arterial calcification is increased in women with current or past warfarin use independent of other risk factors and conditions predating warfarin use. This effect appears to be cumulative and may be irreversible.


Assuntos
Anticoagulantes/efeitos adversos , Doenças Mamárias/induzido quimicamente , Calcificação Vascular/induzido quimicamente , Varfarina/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/administração & dosagem , Doenças Mamárias/diagnóstico por imagem , Doenças Mamárias/epidemiologia , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Esquema de Medicação , Feminino , Georgia/epidemiologia , Humanos , Modelos Logísticos , Mamografia , Pessoa de Meia-Idade , Análise Multivariada , Prevalência , Fatores de Risco , Fatores de Tempo , Calcificação Vascular/diagnóstico por imagem , Calcificação Vascular/epidemiologia , Varfarina/administração & dosagem
15.
Kidney Int ; 87(1): 195-9, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24869671

RESUMO

Medial arterial calcification is common in advanced kidney disease but its impact on cardiovascular disease is uncertain because imaging techniques used to date cannot reliably distinguish it from atherosclerotic calcification. We have previously shown that breast arterial calcification (BAC) is exclusively medial and is a marker of generalized medial calcification in end-stage renal disease (ESRD). Therefore, the presence of BAC on mammograms in 202 women with ESRD (mean duration 4.1 years) was correlated with cardiovascular events to determine the clinical significance of medial arterial calcification. BAC was found in 58% of the study participants and was significantly associated with age, diabetes, and ESRD duration. Both coronary artery (27 vs. 15%) and peripheral arterial disease (PAD; 19 vs. 4%) were more likely in patients with BAC but only the latter persisted after accounting for other factors (odds ratio 4.6; 95% confidence interval 1.2-15). In 142 women without clinical events before mammography, BAC was associated with a greater incidence of new PAD events (13 vs. 3%) but not coronary artery disease events (11 vs. 11%). Thus, BAC is strongly and independently associated with PAD in women with ESRD and may be predictive of clinical events. This suggests that medial arterial calcification is a clinically significant lesion that may contribute to the accelerated PAD in ESRD.


Assuntos
Doença da Artéria Coronariana/etiologia , Falência Renal Crônica/complicações , Esclerose Calcificante da Média de Monckeberg/etiologia , Doença Arterial Periférica/etiologia , Mama/irrigação sanguínea , Estudos Transversais , Feminino , Humanos , Mamografia , Pessoa de Meia-Idade , Estudos Retrospectivos
16.
Am J Nephrol ; 40(2): 151-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25171490

RESUMO

Most pretransplant malignancies require a tumor-free waiting period before transplantation. End-stage renal disease (ESRD) patients have an increased risk of renal cell carcinoma (RCC), which is mostly detected from routine screening during pre-kidney transplant evaluation. RCC must be quiescent prior to kidney transplantation. However, the tumor-free waiting period for RCC varies depending on the types of RCC. Multilocular cystic RCC (MCRCC), one subtype of clear cell RCC, has low malignant potential and may not require a tumor-free waiting period. We report a case of an ESRD patient with a newly diagnosed MCRCC that was found during routine pre-kidney transplant evaluation. A plan for kidney transplantation within 6 months of successful tumor removal by nephrectomy was made. The literature regarding MCRCC in kidney transplantation is reviewed.


Assuntos
Carcinoma de Células Renais/patologia , Falência Renal Crônica/cirurgia , Neoplasias Renais/patologia , Transplante de Rim , Carcinoma de Células Renais/complicações , Carcinoma de Células Renais/cirurgia , Humanos , Falência Renal Crônica/complicações , Neoplasias Renais/complicações , Neoplasias Renais/cirurgia , Masculino , Pessoa de Meia-Idade , Nefrectomia , Fatores de Tempo
17.
Hawaii J Med Public Health ; 72(8): 262-5, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24349888

RESUMO

Cytomegalovirus (CMV) infection is one of the most important causes of morbidity and mortality in solid organ transplantation. It can present with hematuria, the most common urological complication in the early post-simultaneous pancreas-kidney (SPK) transplant period. In SPK transplantation, CMV infection usually occurs 1 month after transplantation. We report an instance of bladder-drained SPK transplant presenting with recurrent gross hematuria from CMV infected duodenal graft ulcers 15 years after preserved well-functioning grafts. Serum quantitative Polymerase Chain Reaction (qPCR) for CMV was negative. Postmortem duodenal graft staining for CMV was positive, and revealed the cause of the inciting ulcer. To our knowledge, our patient is the first reported case of very late onset invasive CMV disease causing duodenal graft ulcers 15 years after transplantation, as previously reported cases of posttransplant CMV disease occurred only as late as 18 months. In addition, the absence of correlation between CMV viremia and CMV-infected duodenal allograft in SPK transplant has not been reported. Our case demonstrates that CMV viral load is -unreliable to diagnose invasive CMV disease, and tissue biopsy should be obtained to avoid missed diagnosis causing high morbidity and mortality.


Assuntos
Fístula Anastomótica/virologia , Infecções por Citomegalovirus/complicações , Infecções por Citomegalovirus/diagnóstico , Úlcera Duodenal/virologia , Hematúria/virologia , Complicações Pós-Operatórias/virologia , Idoso , Evolução Fatal , Humanos , Transplante de Rim , Masculino , Transplante de Pâncreas , Fatores de Tempo
18.
Hawaii J Med Public Health ; 71(8): 212-7, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22900236

RESUMO

Nodular sclerosing Hodgkin's lymphoma commonly presents with a mediastinal mass, but it rarely compresses or invades mediastinal structures or the anterior chest wall. Histologically, it can cause necrotizing granulomatous inflammation. A woman with a right breast mass extending from an asymptomatic large mediastinal mass selectively compressing the trachea is presented. A computed tomography-guided core needle biopsy from the anterior chest wall mass revealed necrotizing granulomatous inflammation. Finally, the diagnosis of nodular sclerosing Hodgkin's lymphoma was made by incisional biopsy. Clinical suspicion of nodular sclerosing Hodgkin's lymphoma is crucial since an adequate tissue diagnosis is needed when the initial less invasive diagnostic testing is inconclusive.


Assuntos
Neoplasias da Mama/diagnóstico , Doença de Hodgkin/diagnóstico , Neoplasias do Mediastino/diagnóstico , Mediastinite/diagnóstico , Adulto , Biópsia com Agulha de Grande Calibre , Diagnóstico Diferencial , Feminino , Células da Granulosa/patologia , Humanos , Mediastino/patologia , Necrose , Tomografia Computadorizada por Raios X
19.
Hawaii Med J ; 70(7): 139-43, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21886301

RESUMO

Acquired isolated renal phosphate wasting associated with a tumor, known as oncogenic osteomalacia or tumor-induced osteomalacia, is a rare paraneoplastic syndrome caused by overproduction of fibroblast growth factor 23. Oncogenic osteomalacia is usually associated with benign mesenchymal tumors. Syndrome of inappropriate antidiuretic hormone secretion (SIADH), on the other hand, is a common paraneoplastic syndrome caused by small cell carcinoma (SCC). Concomitant oncogenic osteomalacia and SIADH associated with SCC is very rare with only 4 other cases reported in the literature. The authors report a case of small cell lung cancer (SCLC)-related renal wasting hypophosphatemia and concurrent SIADH, and review the literature reporting 9 other cases of SCC associated with oncogenic osteomalacia. Almost half of reported cases of renal phosphate wasting associated with SCC concomitantly presented with SIADH. These cases had initial serum phosphorus level lower and survival periods shorter than those without SIADH. This rare combination of a dual paraneoplastic syndrome and low serum phosphorus may be a poor prognostic sign. In addition, both renal phosphate wasting and SIADH usually occur in a short period of time before identification of SCC. Therefore, renal wasting hypophosphatemia with concomitant SIADH/hyponatremia should prompt a search for SCC rather than a benign mesenchymal tumor.


Assuntos
Síndrome de Secreção Inadequada de HAD/etiologia , Neoplasias Hepáticas/complicações , Neoplasias Pulmonares/complicações , Osteomalacia/etiologia , Síndromes Paraneoplásicas/etiologia , Carcinoma de Pequenas Células do Pulmão/complicações , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Cisplatino/administração & dosagem , Diabetes Mellitus Tipo 2/complicações , Evolução Fatal , Gota/complicações , Humanos , Hiperlipidemias/complicações , Hipertensão/complicações , Hipofosfatemia/etiologia , Síndrome de Secreção Inadequada de HAD/diagnóstico , Síndrome de Secreção Inadequada de HAD/tratamento farmacológico , Irinotecano , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/secundário , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Osteomalacia/diagnóstico , Osteomalacia/tratamento farmacológico , Síndromes Paraneoplásicas/diagnóstico , Síndromes Paraneoplásicas/tratamento farmacológico , Fatores de Risco , Carcinoma de Pequenas Células do Pulmão/diagnóstico , Carcinoma de Pequenas Células do Pulmão/tratamento farmacológico , Carcinoma de Pequenas Células do Pulmão/secundário
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