Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 48
Filtrar
1.
Exp Clin Transplant ; 22(Suppl 1): 118-127, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38385385

RESUMO

OBJECTIVES: We investigated the efficacy of a predetermined protocol that consisted of immunosuppressive drug reduction/withdrawal and intravenous immunoglobulin administration for the treatment of polyoma BK virus nephropathy. MATERIALS AND METHODS: Patients with biopsy-proven polyoma BK virus nephropathy received a treatment regimen based on discontinuation of both calcineurin inhibitors and antiproliferative agents and switching to mTOR inhibitors accompanied by intravenous immunoglobulin administration. RESULTS: Our study included 508 patients, with polyoma BK viremia detected in 80 patients. The mean age was 45.3 ± 9.5 years (range, 18-71 y), 64% were male, and mean follow-up was 37 ± 21 months (6-94 mo). All 16 patients who developed polyoma BK virus nephropathy and 9 patients who had highgrade polyoma BK viremia without nephropathy received intravenous immunoglobulin treatment. Compared with patients with viremia, patients with polyoma BK virus nephropathy had significantly higher rates of graft loss due to rejection (18.8% vs 1.6%; P = .024) and all-cause graft loss (31.2% vs 6.3%; P = .014). Histopathologically, viral inclusion bodies disappeared and SV40 became negative after treatment in all 13 patients who underwent protocol biopsies. Unfortunately, histopathologically complete recovery without chronic tubular and interstitial tissue damage was achieved in only 4 patients after treatment. In addition, 3 patients lost their grafts due to acute antibody-mediated or mixed-type rejection (18.8%). CONCLUSIONS: In patients with polyoma BK virus nephropathy, clearance of viremia and SV40 should not be the sole outcomes to obtain. Aggressive reductions in maintenance immunosuppression and switching to double-drug therapy combined with high-dose intravenous immunoglobulin leads to high rates of graft loss/rejection and sequalae of chronic histological changes.


Assuntos
Vírus BK , Transplante de Rim , Nefrite Intersticial , Infecções por Polyomavirus , Infecções Tumorais por Vírus , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Biópsia , Imunoglobulinas Intravenosas/uso terapêutico , Imunossupressores , Transplante de Rim/efeitos adversos , Inibidores de MTOR , Nefrite Intersticial/tratamento farmacológico , Infecções por Polyomavirus/diagnóstico , Infecções por Polyomavirus/tratamento farmacológico , Transplantados , Infecções Tumorais por Vírus/diagnóstico , Infecções Tumorais por Vírus/tratamento farmacológico , Viremia
2.
Breast J ; 2023: 4549033, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36694670

RESUMO

Objective: To evaluate the efficiency and safety of sentinel lymph node biopsy (SLNB) in patients with breast cancer with complete response to neoadjuvant chemotherapy (NAC). Methods: Ninety-two consecutive (T1-4 and N1-2) patients with breast cancer who had pathologic and/or clinical and radiologic axillary lymph node involvement were included. All patients received NAC. Patients with a clinical and radiologic complete response in the axilla after NAC underwent SLNB. Pathologic complete response (ypCR) was defined as the absence of residual invasive and in situ cancer, and near-complete response (ypNCR) represented in situ and/or ≤ 1 mm residual tumor in the breast and/or presence of malignant cell clusters (≤0.2 mm) and/or micrometastases (≤2.0 mm) in the axillary lymph nodes (ALN) (ypTis/T1mi, ypN0i+/pN1mi). Results: The mean age of the 92 patients was 49.6 ± 10.3 years and the mean follow-up was 34.0 ± 17.8 months. With respect to breast tumors, 23 (25.0%) patients had complete and 14 (15.2%) had a near-complete response to NAC. Complete response in ALN was obtained in 39 (42.4%) patients and near-complete in six (6.5%) patients. The overall survival of the 33 patients who achieved ypCR and ypNCR was 100% and the remaining 59 patients with partial or no response to NAC was 83.1% at a mean follow-up of 34 months (p=0.063). Conclusions: In this study, no event developed in cases with ypCR and ypNCR in the breast and axilla. The persistence of the same results in long-termfollow-ups may enable the use of ypNCR as a positive prognostic marker in addition to ypCR.


Assuntos
Neoplasias da Mama , Biópsia de Linfonodo Sentinela , Humanos , Adulto , Pessoa de Meia-Idade , Feminino , Biópsia de Linfonodo Sentinela/métodos , Neoplasias da Mama/patologia , Terapia Neoadjuvante/efeitos adversos , Linfonodos/patologia , Mama/patologia , Axila/patologia , Excisão de Linfonodo
3.
Eur J Breast Health ; 18(4): 375-380, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36248759

RESUMO

Invasive lobular carcinoma (ILC) accounts for almost 15% of all breast carcinomas. The potential of ILC to metastasize to the gastointestinal system is significantly greater than that of invasive ductal carcinoma. Gastric metastasis occurred in the ninth year of the follow-up in a patient who was operated on the right breast due to ILC. The patient was investigated for simultaneous masses in the stomach and colon, and a random mass was found in her right breast.

4.
Breast J ; 2022: 2461242, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36237576

RESUMO

Background: Invasive lobular carcinomas (ILC) account for 10-15% of all breast cancers and are the second most common histological form of breast cancer. They usually show a discohesive pattern of single cell infiltration, tend to be multifocal, and the tumor may not be accompanied by a stromal reaction. Because of these histological features, which are not common in other breast tumors, radiological detection of the tumor may be difficult, and its pathological evaluation in terms of size and spread is often problematic. The SSO-ASTRO guideline defines the negative surgical margin in breast-conserving surgeries as the absence of tumor detection on the ink. However, surgical margin assessment in invasive lobular carcinomas has not been much discussed from the pathological perspective. Methods: The study included 79 cases diagnosed with invasive lobular carcinoma by a Tru-cut biopsy where operated in our center between 2014 and 2021. Clinicopathological characteristics of the cases, results of an intraoperative frozen evaluation in cases that underwent conservative surgery, the necessity of re-excision and complementary mastectomy, and consistency in radiological and pathological response evaluation in cases receiving neoadjuvant treatment were questioned. Results: The tumor was multifocal in 37 (46.8%) cases and single tumor focus in 42 (53.2%) cases. When the entire patient population was evaluated, regardless of focality, mastectomy was performed in 27 patients (34.2%) and breast-conserving surgery (BCS) was performed in 52 patients (65.8%). Of the 52 patients who underwent BCS, 26 (50%) required an additional surgical procedure (cavity revision or completion mastectomy). There is a statistical relationship between tumor size and additional surgical intervention (p < 0.05). BCS was performed in 7 of 12 patients who were operated on after neoadjuvant treatment, but all of them were reoperated with the same or a second session and turned to mastectomy. Neoadjuvant treatment and the need for reoperation were statistically significant (p < 0.05). Additional surgical procedures were performed in 20 (44.4%) of 45 patients in BCS cases who did not receive neoadjuvant therapy. Conclusions: Diagnostic difficulties in the intraoperative frozen evaluation of invasive lobular carcinoma are due to the different histopathological patterns of the ILC. In our study, it was determined that large tumor size and neoadjuvant therapy increased the need for additional surgical procedures. It is thought that the pathological perspective is the determining factor in order to minimize the negative effects such as unsuccessful cosmesis, an additional surgical burden on the patient, and cost increase that may occur with additional surgical procedures; for this reason, new approaches should be discussed in the treatment planning of invasive lobular carcinoma cases.


Assuntos
Neoplasias da Mama , Carcinoma Ductal de Mama , Carcinoma Lobular , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/patologia , Carcinoma Lobular/diagnóstico por imagem , Carcinoma Lobular/patologia , Carcinoma Lobular/cirurgia , Feminino , Humanos , Margens de Excisão , Mastectomia/métodos , Mastectomia Segmentar/métodos , Estudos Retrospectivos
5.
Exp Clin Transplant ; 20(Suppl 1): 117-124, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35384820

RESUMO

OBJECTIVES: In this study, we examined the clinical and biochemical features of biopsy-proven acute pyelonephritis among 769 kidney transplant recipients. MATERIALS AND METHODS: This cohort study was performed between January 2003 and December 2019 at the University of Health Sciences (Izmir, Turkey). Acute pyelonephritis refers to urinary tract infection with acute graft dysfunction. All patients with suspected acute pyelonephritis underwent diagnostic biopsy and received antibiotic treatment for an average of 14 to 21 days. Patients with acute pyelonephritis (18/769, 2.3%) were categorized into groups of 9 patients each: group 1 developed acute pyelonephritis in the first 6 months, and group 2 developed acute pyelonephritis >6 months posttransplant. RESULTS: All patients in group 1 had acute graft dysfunction; only 2 (22%) were symptomatic. All patients recovered baseline graft function after treatment. Patients in group 2 had at least 2 laboratory findings that included leukocytosis, neutrophilia, and high C-reactive protein values. Six patients had urine culture positivity. Recurrent pyelonephritis occurred in 3 patients. Four patients had graft loss. Over the mean follow-up of 48.0 ± 28.4 months, 14 patients (78%) were alive with a functioning graft. CONCLUSIONS: Diagnostic biopsy is of great importance in patients with urinary tract infection accompanied by acute graft dysfunction in the first 6 months after transplant.


Assuntos
Transplante de Rim , Pielonefrite , Infecções Urinárias , Aloenxertos , Biópsia , Estudos de Coortes , Rejeição de Enxerto/diagnóstico , Rejeição de Enxerto/etiologia , Humanos , Transplante de Rim/efeitos adversos , Pielonefrite/diagnóstico , Pielonefrite/tratamento farmacológico , Pielonefrite/etiologia , Resultado do Tratamento , Infecções Urinárias/diagnóstico , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/etiologia
6.
Exp Clin Transplant ; 20(Suppl 1): 149-152, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35384827

RESUMO

OBJECTIVES: In this study, we examined the graft and patient survival outcomes in patients with end-stage kidney disease who received 6 HLA-mismatched incompatible living donor kidney transplant. MATERIALS AND METHODS: Patients who underwent living donor kidney transplant between January 2010 and March 2020 were evaluated retrospectively. Group A included kidney transplant recipients with 6 HLA mismatches, and group B included kidney transplant recipients with 0 to 5 HLA mismatches. Patients with <1 year of follow-up were excluded. All rejection episodes were diagnosed via Tru-Cut biopsy and histopathological evaluation. RESULTS: There were 15 patients in group A and 176 patients in group B. The mean follow-up was 54.1 ± 30 months. The number of patients who underwent pretransplant immune desensitization and received tacrolimus-based triple maintenance immunosuppression therapy was significantly higher in group A. In group A, there were 13 acute rejections seen in 9 patients (81<); in group B, there were 67 acute rejections seen in 51 patients (28.9<; P = .019). No differences were observed between the groups in terms of baseline glomerular filtration rate (60 ± 16 vs 61.6 ± 20 mL/min/1.72 m2; P = .76), final control glomerular filtration rate (60.7 ± 15 vs 58 ± 19 mL/ min/1.72 m2; P = .59), graft loss (0< vs 4<; P = .94), and mortality (6.6< vs 3<; P = .39). CONCLUSIONS: The presence of 6 HLA mismatches was associated with higher rates of biopsy-proven acute rejection. However, 6 HLA-mismatched incompatible living donor kidney transplant can be safely performed in centers where posttransplant followup is supported by indication and protocol biopsies and where there is a pathological infrastructure with extensive knowledge and experience.


Assuntos
Transplante de Rim , Biópsia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Antígenos HLA , Antígenos de Histocompatibilidade Classe II , Humanos , Transplante de Rim/efeitos adversos , Transplante de Rim/métodos , Doadores Vivos , Estudos Retrospectivos , Resultado do Tratamento
7.
Acta Chir Belg ; 122(5): 357-360, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33274692

RESUMO

INTRODUCTION: Lower gastrointestinal tract (GIT) bleeding originating from the appendix is rare and may be difficult to diagnose. PATIENTS AND METHODS: In this case report, we present an 88-year-old male patient who was admitted with hematochezia due to appendiceal bleeding. A colonoscopy revealed bleeding in the appendix orifice so an appendectomy was performed, and bleeding did not recur in the postoperative period. RESULTS: The results of the microscopic examination showed low-grade mucinous neoplasm (LGMN) of the appendix. CONCLUSION: It should be kept in mind that bleeding may originate from the appendix in patients presenting with GIT bleeding. Our patient is the first to present with an acute lower GIT bleed who was diagnosed as having LGMN in the appendectomy specimen.


Assuntos
Neoplasias do Apêndice , Apêndice , Neoplasias , Doença Aguda , Idoso de 80 Anos ou mais , Apendicectomia/efeitos adversos , Neoplasias do Apêndice/complicações , Neoplasias do Apêndice/diagnóstico , Neoplasias do Apêndice/cirurgia , Apêndice/cirurgia , Colonoscopia , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/cirurgia , Humanos , Masculino
8.
Sci Rep ; 11(1): 20175, 2021 10 11.
Artigo em Inglês | MEDLINE | ID: mdl-34635748

RESUMO

In this study, we planned to investigate the clinical course of patients with breast cancer with oligometastatic bone disease (OMBD). The patients were grouped according to the characteristics and the sites of metastases. Group I included 928 patients without metastasis. Group II, the OMBD group, included 68 patients. Group III, the widespread metastasis group, comprised 185 patients with multiple bone metastases and/or solid organ metastases. The mean overall survival of the groups was 16.7 ± 0.3 years in group 1, and 7.8 ± 0.8 and 5.9 ± 0.4 years in groups 2 and 3, respectively (p < 0.001 for the comparison of all three groups together; p < 0.001 for group 1 vs. 2 and 3) and (p = 0.037 for group 2 vs. group 3). In the subgroup survival analysis of patients in group 2 (OMBD), the mean and median survival was 5.5 ± 0.8 and 4.0 ± 0.8 years vs. 9.2 ± 0.98 and 9.0 ± 1.05 years in patients with more than one bone metastasis and single bone metastasis, respectively (p = 0.019). OMBD seems to be a different disease than breast cancer with isolated bone metastases. The high risk of developing OMBD, especially following locoregional recurrence, increases the importance of locoregional therapy in large T and N stage tumors.


Assuntos
Neoplasias Ósseas/mortalidade , Neoplasias da Mama/mortalidade , Recidiva Local de Neoplasia/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Ósseas/secundário , Neoplasias Ósseas/terapia , Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Terapia Combinada , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/terapia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
9.
Clin Transplant ; 35(6): e14309, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33813772

RESUMO

BACKGROUND: The efficacy of anti-interleukin-1 (IL-1) drugs in kidney transplant patients with FMF-AA who developed colchicine resistance has not been clearly demonstrated. METHOD: Thirty nine kidney transplant recipients with FMF-AA were evaluated. Group 1 consisted of patients who were in remission after transplantation with colchine and Group 2 included those who developed colchicine resistance. RESULTS: The mean follow-up of the patients was 88.5 ± 61.9 months. Following the treatment with IL-1 antagonists; serum Amyloid A (SAA) averages (79.4 ± 35.3 mg/L) as well as the average number of hospitalizations per month due to FMF episodes (1.4 ± 0.5 times/month) decreased significantly (26.6 ± 25.9 mg/L and 0.1 ± 0.3 times/month) (p < .001). Rates of death with a functional graft were 30% and 0% in group 1 and 2 (p = .086). Biopsy-proven AA amyloidosis recurrence in the allograft was observed in 11 of 19 (58%) and seven of nine (78%) patients in group 1 and 2, respectively. Interestingly, glomerular amyloid deposition was not present in the vast majority of biopsies. De novo vasculer amyloid deposition was observed during treatment. CONCLUSION: IL-1 antagonist drug and colchicine combination almost completely prevented acute FMF attacks in kidney transplant patients with colchicine resistance. However, amyloid accumulation did not cease during IL-1 antagonist drug treatment.


Assuntos
Febre Familiar do Mediterrâneo , Transplante de Rim , Preparações Farmacêuticas , Anticorpos Monoclonais Humanizados , Colchicina/uso terapêutico , Febre Familiar do Mediterrâneo/tratamento farmacológico , Humanos , Proteína Antagonista do Receptor de Interleucina 1 , Interleucina-1
10.
Medicine (Baltimore) ; 100(1): e24164, 2021 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-33429799

RESUMO

ABSTRACT: The most common site for metastasis in patients with breast cancer is the bone. In this case series, we investigated patients whose surgical and medical treatment for primary breast cancer was conducted at our center and first disease recurrence was limited to only 1 bone.We analyzed 910 breast cancer patients, 863 had no metastasis and 47 cases had a single bone metastasis ≥ 6 months after their first diagnosis. Demographic, epidemiological, histopathological and intrinsic tumor subtype differences between the non-metastatic group and the group with solitary bone metastases and their statistical significance were examined. Among established breast cancer risk factors, we studied twenty-nine variables.Three variables (Type of tumor surgery, TNM Stage III tumors and mixed type (invasive ductalcarsinoma + invasive lobular carcinoma) histology) were significant in multivariate logistic regression analysis. Accordingly, the risk of developing single bone metastasis was approximately 15 times higher in patients who underwent mastectomy and 4.8 and 2.8 times higher in those with TNM Stage III tumors and with mixed type (invasive ductal carcinoma + invasive lobular carcinoma) histology, respectively.In conclusion, the risk of developing single bone metastasis is likely in non-metastatic patients with Stage III tumors and possibly in mixed type tumors. Knowing this risk, especially in patients with mixed type tumors, may be instrumental in taking measures with different adjuvant therapies in future studies. Among these, treatment modalities such as prolonged hormone therapy and addition of bisphosphonates to the adjuvant treatments of stage III and mixed breast cancer patients may be considered.


Assuntos
Neoplasias Ósseas/classificação , Osso e Ossos/patologia , Neoplasias da Mama/complicações , Metástase Neoplásica/fisiopatologia , Adulto , Idoso , Neoplasias Ósseas/patologia , Osso e Ossos/fisiopatologia , Feminino , Humanos , Pessoa de Meia-Idade
11.
Rev. Assoc. Med. Bras. (1992, Impr.) ; 66(2): 153-159, Feb. 2020. tab, graf
Artigo em Inglês | Sec. Est. Saúde SP, LILACS | ID: biblio-1136178

RESUMO

SUMMARY OBJECTIVES To prospectively investigate the alterations and normal ranges of ureteral jet dynamics after double-J-stent (DJS) removal in patients who underwent renal transplantation (RTx). METHODS Patients who underwent RTx were prospectively evaluated between November 2017 and June 2018. After RTx, Doppler ultrasonography (D-US) was performed on all patients after DJS removal. Renal artery resistive index (RA-Ri), renal pelvis anterior-posterior diameter (RP-APD), pelvicalyceal system dilation (PCSD), and ureteral jet flow dynamics (maximum and average velocity; JETmax and JETave) were measured by D-US. Also, patients' demographics, estimated glomerular filtration rate (eGFR) levels, and acute rejection were investigated in the study. Patients were assessed two different times by D-US, about 6 and 12 weeks after DJS removal, and the two different measurements were compared with the Wilcoxon test and Chi-square test. RESULTS A total of 25 patients were evaluated in the study. Nonobstructive PCSD rate (12% vs 8%), JETave (18.8 vs 12.9 cm/sec), and JETmax (29.2 vs 20 cm/sec) levels were significantly decreased (p values are 0.01, 0.010 and 0.014, respectively). In addition, monophasic and square pattern rates were significantly observed to increase over time (p=0.035); however, ureteral jet patterns were correlated between the two different D-US measurements (R=0.225, p=0.032). CONCLUSION After RTx, dilation rate and ureteral jet flow velocities were significantly decreased, and monophasic and square JETpattern rates were significantly increased over time. Ureteral jet dynamics can provide useful information about the follow-up of peristaltic activity in the pelvic-ureteric system.


RESUMO OBJETIVOS Investigar prospectivamente as alterações e as variações normais da dinâmica do jato ureteral após a remoção do J-stent duplo (DJS) em pacientes submetidos a transplante renal (RTx). MÉTODOS Pacientes submetidos a RTx foram avaliados prospectivamente entre novembro de 2017 e junho de 2018. Após o RTx, o D-US foi realizado em todos os pacientes após a remoção do DJS. Índice de resistência da artéria renal (RA-Ri), diâmetro ântero-posterior da pelve renal (AP-DPR), dilatação do sistema pelvicaliceal (PCSD) e dinâmica do jato ureteral (velocidade máxima e média; JETmax e JETave) foram medidos por D-US. Além disso, a demografia dos pacientes, os níveis estimados de taxa de filtração glomerular (eGFR) e a rejeição aguda foram investigados no estudo. Os pacientes foram avaliados em dois momentos diferentes pelo D-US, cerca de 6 e 12 semanas após a remoção do DJS, e as duas medidas diferentes foram comparadas com o teste de Wilcoxon e o teste do qui-quadrado. RESULTADOS Um total de 25 pacientes foi avaliado no estudo. Taxa de PCSD não obstrutiva (12% vs. 8%), JETave (18,8 vs. 12,9 cm/seg) e JETmax (29,2 vs. 20 cm/seg), os níveis foram significativamente diminuídos (valores de p são 0,01, 0,010 e 0,014, respectivamente). Além disso, as taxas de padrão monofásico e quadrado foram significativamente observadas para aumentar ao longo do tempo (p=0,035); no entanto, padrões de jato ureteral foram correlacionados entre as duas diferentes medidas D-US (R=0,225, p=0,032). CONCLUSÃO Após o RTx, a velocidade de dilatação e as velocidades de fluxo do jato ureteral foram significativamente diminuídas e as taxas de JET padrão monofásico e quadrado foram significativamente aumentadas ao longo do tempo. A dinâmica do jato ureteral pode fornecer informações úteis sobre o acompanhamento da atividade peristáltica no sistema pélvico-ureteral.


Assuntos
Humanos , Masculino , Feminino , Adulto , Adulto Jovem , Ureter/fisiopatologia , Urodinâmica/fisiologia , Cateterismo Urinário/efeitos adversos , Stents/efeitos adversos , Transplante de Rim/efeitos adversos , Fatores de Tempo , Ureter/diagnóstico por imagem , Estudos Prospectivos , Seguimentos , Ultrassonografia Doppler/métodos , Estatísticas não Paramétricas , Taxa de Filtração Glomerular , Pessoa de Meia-Idade
12.
Clin Nephrol ; 93(2): 85-90, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31670649

RESUMO

BACKGROUND: The aim of this study is to evaluate the efficacy of a treatment protocol for the management of acute antibody-mediated rejection (AAMR) and mixed-type rejection (MTR), both histopathologically and clinically. MATERIALS AND METHODS: Of the 362 cases undergoing kidney transplantation from January 2010 to January 2018, patients with AAMR or MTR in the first 3 months after transplantation were included. All patients had follow-up biopsy (Bx) after treatment. RESULTS: 33 (9.1%) patients had diagnosis of AMR. Mean follow-up was 35 ± 20 months. 28.5% of patients had poor clinical progression at the last follow-up. Of the 25 patients with functional grafts, the mean serum creatinine was 1.6 ± 0.6 mg/dL for live and 2.1 ± 1.0 mg/dL for deceased transplant recipients. In diagnostic biopsies, there were 61% MTR. In follow-up Bx, after treatment, both C4d positivity and the severity of rejection had decreased while the mean chronic allograft damage index (CADI) score and transplant glomerulopathy showed an increase. CONCLUSION: With effective antibody mediated rejection (AMR) therapy, renal function parameters were significantly improved. Histologically, improvement in tubulointerstitial inflammation may be responsible for this process. However, progressive chronic changes, particularly in the glomeruli, are noteworthy.


Assuntos
Anticorpos/sangue , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/patologia , Glomérulos Renais/patologia , Transplante de Rim/efeitos adversos , Doença Aguda , Adulto , Biópsia , Complemento C4b/metabolismo , Creatinina/sangue , Progressão da Doença , Feminino , Seguimentos , Rejeição de Enxerto/imunologia , Sobrevivência de Enxerto , Humanos , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Fragmentos de Peptídeos/metabolismo
13.
Medicine (Baltimore) ; 98(23): e15926, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31169711

RESUMO

The normal distribution of parathyroid glands is well documented. However, this study aims to evaluate the efficacy of total parathyroidectomy (TPTx) and bilateral cervical thymectomy (BCTx) for the treatment of secondary hyperparathyroidism (SHPT) through identifying the location of parathyroid glands with attention to the pattern and frequency of orthotopic and ectopic glands.Between 2013 and 2018, sixty chronic hemodialysis patients with medically refractory SHPT underwent TPTx & BCTx. The adequacy of the operation was defined by the pathological confirmation of at least 4 parathyroid glands, accompanied by an intact parathormone (iPTH) value of <60 pg/mL on postoperative day 1(POD1). Based on their anatomical localizations, four distinct sites were identified for both the upper (Zone I-IV) and lower parathyroid glands (Zone V-VIII).The mean follow-up was 15.2 ±â€Š14.6 months. The mean iPTH values on POD1 were normal in 50 patients, with an average of 11.7 ±â€Š14.4 pg/mL. Ten patients (16.6%) had persistent HPT after the operation, three of whom underwent complementary parathyroidectomy. The surgical success rates after first and second operations were both 83.3%. A total of 235 parathyroid glands were detected. Ninety-two percent of the upper parathyroids were located in Zones I and II. However, almost 28% of the lower parathyroids were ectopic and located in Zones VII and VIII.At least one fourth of the lower parathyroids are ectopic; for this reason, Zones VII and VIII require careful investigation during surgery. For upper parathyroids not found in Zone I-III, total thyroidectomy on the same side is recommended.


Assuntos
Coristoma/patologia , Hiperparatireoidismo Secundário/cirurgia , Glândulas Paratireoides/patologia , Paratireoidectomia/métodos , Timectomia/métodos , Adulto , Idoso , Feminino , Humanos , Hiperparatireoidismo Secundário/patologia , Hiperparatireoidismo Secundário/fisiopatologia , Masculino , Pessoa de Meia-Idade , Pescoço , Glândulas Paratireoides/fisiopatologia , Período Pós-Operatório , Adulto Jovem
14.
Nephron ; 142(1): 26-33, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30739116

RESUMO

BACKGROUND: Fabry disease (FD) is an X-linked lysosomal storage disorder resulting from lack of alpha-galactosidase A (AGALA) activity in lysosomes. OBJECTIVE: In this multicenter study, we aimed to evaluate the prevalence of FD in renal transplant (Tx) recipients in Turkey. We also screened dialysis patients as a control group. METHODS: All Tx and dialysis patients were screened regardless of the presence of a primary disease. We measured the AGALA activity in all male patients as initial analysis. Mutation analysis was performed in male patients with decreased AGALA activity and in female patients as the initial diagnostic assay. RESULTS: We screened 5,657 patients. A total of 17 mutations were identified. No significant difference was observed between the groups regarding the prevalence of patients with mutation. We found FD even in patients with presumed primary kidney diseases. Seventy-one relatives were analyzed and mutation was detected in 43 of them. We detected a patient with a new, unknown mutation (p.Cys223) in the GLA gene. CONCLUSIONS: There are important implications of the screening. First, detection of the undiagnosed patients leads to starting appropriate therapies for these patients. Second, the transmission of the disease to future generations may be prevented by prenatal screening after appropriate genetic counseling. In conclusion, we suggest screening of kidney Tx candidates for FD, regardless of etiologies of chronic kidney disease.


Assuntos
Doença de Fabry/epidemiologia , Terapia de Substituição Renal , Adulto , Estudos de Casos e Controles , Doença de Fabry/genética , Doença de Fabry/terapia , Feminino , Testes Genéticos , Humanos , Transplante de Rim , Masculino , Pessoa de Meia-Idade , Mutação , Turquia/epidemiologia , alfa-Galactosidase/genética
15.
Int J Artif Organs ; 42(1): 3-8, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30182796

RESUMO

Late ureteral stenosis following kidney transplantation needs immediate correction in order to protect allograft function and requires a complicated surgical procedure. In this study, we present the long-term results of tubular bladder reconfiguration and cystopyelostomy (tubular vesicopyelostomy), an innovative and practical procedure for the management of long-segment ureteric stenosis (types 2 and 3) after transplantation. Between 2002 and 2017, 722 kidney transplant patients were monitored at the University of Medical Sciences, Bozyaka Organ Transplantation and Research Center. Twenty-eight of these patients underwent tubular vesicopyelostomy operation; 17 male and 11 female patients with a mean age of 45.6 ± 10.5 years. Time to surgical intervention for urinary tract obstruction was 122.5 ± 114.7 months. The mean serum creatinine values previous to and 3 days following the tubular vesicopyelostomy operation were 3.46 ± 1.5 mg/dL and 1.75 ± 0.7 mg/dL, respectively (p < 0.0001). Within a mean follow-up period of 55.1 ± 40.9 months, functional grafts were recorded in 22 patients with a mean serum creatinine value of 1.92 ± 0.8 mg/dL. Only one patient developed anastomotic stenosis after the tubular vesicopyelostomy procedure, giving an overall success rate for tubular vesicopyelostomy of 96.4%. Six patients returned to hemodialysis. In five, the underlying etiology was not related to recurrent obstruction or surgical complications. Sixteen patients underwent allograft biopsy after the operation, but features of tubulointerstitial nephritis were seen in only one. Tubular vesicopyelostomy operation is a safe and successful method for the surgical treatment of late and complicated ureteral obstructions with excellent long-term results. It may be a good, practical alternative to other more sophisticated surgical options.


Assuntos
Anastomose Cirúrgica/métodos , Transplante de Rim/efeitos adversos , Complicações Pós-Operatórias , Obstrução Ureteral , Bexiga Urinária/cirurgia , Adulto , Creatinina/análise , Feminino , Sobrevivência de Enxerto , Humanos , Testes de Função Renal/métodos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Turquia , Obstrução Ureteral/diagnóstico , Obstrução Ureteral/etiologia , Obstrução Ureteral/cirurgia
16.
Turk J Surg ; 34(3): 178-183, 2018 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-30216172

RESUMO

OBJECTIVES: The literature about the frequency of metabolic syndrome in patients with multinodular goitre and a new onset of metabolic syndrome after total thyroidectomy is limited. The aim of this study was to investigate the effects of total thyroidectomy and thyroid hormones on a new onset of metabolic syndrome in patients who underwent total thyroidectomy and have received thyroid hormone replacement. MATERIAL AND METHODS: Fifty-nine patients who underwent total thyroidectomy for multinodular goitre were included in this prospective study. Patients' height, weight, and waist circumference were measured, and the body mass index was calculated. Peripheral blood samples were obtained preoperatively and at the 12th and 24th month after total thyroidectomy to examine the lipid profile, glucose homeostasis, and thyroid function tests. RESULTS: The lipid profile and blood pressure parameters deteriorated, and the mean body mass index and waist circumference with the metabolic syndrome rates significantly increased at the 12th and 24th months follow-up. Preoperative body mass index (Exp[B] 1.60; p=0.003) was independently associated with metabolic syndrome at the 2nd year after total thyroidectomyin a multivariate regression analysis. CONCLUSION: The frequency and severity of MetS is high in adult patients with non-toxic multinodular goitre after total thyroidectomy. The frequency of metabolic syndrome increased in patients with a high body mass index after total thyroidectomy.

17.
Turk J Surg ; 34(2): 125-130, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30023977

RESUMO

OBJECTIVE: D2 lymphadenectomy (D2-LND) with curative resection (R0) is the cornerstone of gastric cancer treatment. In this study, we compared survival outcomes of D2-LDN with D1-LDN in patients who had undergone curative resection for Stages II and III primary gastric adenocarcinoma. MATERIAL AND METHODS: Between April 1996 and March 2014, 153 consecutive patients with adenocarcinoma of the stomach underwent total gastrectomy with D1-LND or D2-LND. Among those, 118 patients (38 D1 vs. 80 D2) with a complete history and having been followed for at least 1 year after surgery were enrolled. Both groups were compared in terms of demographic and clinico-pathologic characteristics. RESULTS: The mean follow-up was 42.6±52.5 months (mo.). The demographic characteristics of the groups were similar. The Tumor, Node and Metastases (TNM) stage distribution was 25% for Stage II and 75% for Stage III for both groups. Eighteen patients (47.4%) in the D1 and 47 patients (58.8%) in the D2 group were free from locoregional recurrence. The median disease-free survival was 22.0±4.1 mo. for the D1 and 28.0±4.3 mo. for the D2 group (p=0.36). Eight patients (21%) in the D1 and 39 patients (49%) in the D2 group were alive at the last follow-up. The median overall survival (OS) was 22.0±3.7 mo. for the D1 and 31.0±5.4 mo. for the D2 group (p=0.13). The 5-year disease-free survival and OS by the Kaplan-Meier estimates were 41% vs. 51% and 30% vs. 42% in the D1 and D2 groups, respectively. The median 5-year OS for patients with Stages IIIB and IIIC tumors was 14.0±2.2 mo. for the D1 and 20.0±5.0 mo. for the D2 group, respectively (p: 0.048). CONCLUSION: When compared to D1-LND, D2-LND with R0 resection have yielded a trend toward a better outcome in patients with primary gastric adenocarcinoma.

18.
Exp Clin Transplant ; 15(Suppl 1): 236-239, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-28260475

RESUMO

OBJECTIVES: We evaluated patients with nonmelanoma skin cancer after kidney transplant and the effects of immunosuppression reduction and switching to a mammalian target of rapamycin inhibitor drugs. MATERIALS AND METHODS: Kidney transplant recipients were evaluated retrospectively from patient medical records (between January 2000 and December 2014). A 30% increase in serum creatinine was accepted as indicating renal failure progression. RESULTS: Of 18 patients included (mean follow-up 98 ± 66 mo), 7 (38.8%) had squamous cell carcinoma, 7 (38.8%) had Kaposi sarcoma, and 4 (22.2%) had basal cell carcinoma. At cancer diagnosis, average serum creatinine was 1.6 ± 0.7 mg/dL and proteinuria was 410 ± 766 mg/d. Immunosuppression regimen was changed in 15 patients (83.3%), with new regimen being a single-drug (only prednisolone) in 4 patients, double-drug in 6 patients, and triple-drug protocol in 8 patients. Eight patients were switched to a mammalian target of rapamycin inhibitor-based double (4 patients) or triple (4 patients) regimen. During follow-up after starting new treatment (average 46 ± 50 mo), 6 patients (33.3%) had progressive kidney failure (0 were receiving triple regimen). Those that progressed were using mammalian target of rapamycin inhibitor-based drugs relatively less (33% vs 50%), although often receiving a single-drug immunosuppression treatment (50% vs 8.3%). Three patients (33.3%) had acute rejection (2 receiving double and 1 receiving single immunosuppression treatment). Five patients (27.7%) had local recurrence of the primary tumor. Mammalian target of rapamycin inhibitor use was relatively less common in patients with tumor relapse (20% vs 46%). One patient died (heart failure), and 1 with chronic rejection returned to dialysis. CONCLUSIONS: Mammalian target of rapamycin inhibitorbased drugs could reduce local recurrence rate in kidney transplant recipients with nonmelanoma skin cancers. Aggressive reduction and/or cessation of immunosuppressive drugs after skin cancer can lead to graft rejection.


Assuntos
Carcinoma Basocelular/induzido quimicamente , Carcinoma de Células Escamosas/induzido quimicamente , Imunossupressores/efeitos adversos , Transplante de Rim/efeitos adversos , Inibidores de Proteínas Quinases/efeitos adversos , Sarcoma de Kaposi/induzido quimicamente , Neoplasias Cutâneas/induzido quimicamente , Serina-Treonina Quinases TOR/antagonistas & inibidores , Carcinoma Basocelular/economia , Carcinoma Basocelular/imunologia , Carcinoma Basocelular/prevenção & controle , Carcinoma de Células Escamosas/economia , Carcinoma de Células Escamosas/imunologia , Carcinoma de Células Escamosas/prevenção & controle , Análise Custo-Benefício , Custos de Medicamentos , Substituição de Medicamentos , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Humanos , Imunossupressores/economia , Transplante de Rim/economia , Prontuários Médicos , Recidiva Local de Neoplasia , Estudos Retrospectivos , Fatores de Risco , Sarcoma de Kaposi/economia , Sarcoma de Kaposi/imunologia , Sarcoma de Kaposi/prevenção & controle , Neoplasias Cutâneas/economia , Neoplasias Cutâneas/imunologia , Neoplasias Cutâneas/prevenção & controle , Fatores de Tempo , Resultado do Tratamento
19.
Exp Clin Transplant ; 15(Suppl 1): 240-243, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28260476

RESUMO

OBJECTIVES: We evaluated long-term results and infections requiring hospitalization in kidney transplant patients with Familial Mediterranean Fever (associated amyloidosis-type). MATERIALS AND METHODS: We retrospectively reviewed medical records of patients with familial Mediterranean fever with at least 1-year posttransplant follow-up. Kidney transplant recipients with primary glomerulonephritis and equivalent demography, immunity status, and follow-up comprised the control group. RESULTS: In 32 patients with familial Mediterranean fever versus 25 control patients (mean follow-up 82 ± 57 vs 79 ± 54 mo; P = .82), average serum creatinine values were 1.7 ± 0.9 versus 1.5 ± 1.0 mg/dL (P = .41) at discharge, 1.4 ± 0.4 versus 1.3 ± 0.5 mg/dL (P = .44) at 1 year, 1.4 ± 0.6 versus 1.3 ± 0.5 mg/dL (P = .63) at 3 years, and 2.0 ± 1.5 versus 2.1 ± 1.5 mg/dL (P = .92) at last follow-up. Groups were not statistically different regarding average inpatient and number of hospitalizations due to infections at 1 year; however, at last follow-up, 26 patients with familial Mediterranean fever (81%) had 8.6 average admissions and 13 control patients (52%) had 2.8 average admissions (P = .02, P < .01). Early posttransplant, both groups were taking a triple drug immunosuppression regimen. However, at 1 and 3 years posttransplant, withdrawal and/or minimization occurred in 40.6% and 83.3% of patients with familial Mediterranean fever and 28% and 55.5% of control patients (P < .05, P < .05). During follow-up, 6 familial Mediterranean fever patients (18.7%) and 2 control patients (8%) died (P = .23). CONCLUSIONS: Although renal transplant patients with associated amyloidosis-type familial Mediterranean fever and those with glomerulonephritis have similar rejection and/or graft loss rates, hospital admissions due to infection and increased mortality are more common in the familial Mediterranean fever group, with immunosuppression drug withdrawal.


Assuntos
Doenças Transmissíveis/etiologia , Febre Familiar do Mediterrâneo/complicações , Transplante de Rim/efeitos adversos , Insuficiência Renal/cirurgia , Adulto , Doenças Transmissíveis/imunologia , Doenças Transmissíveis/mortalidade , Doenças Transmissíveis/terapia , Substituição de Medicamentos , Febre Familiar do Mediterrâneo/imunologia , Febre Familiar do Mediterrâneo/mortalidade , Feminino , Hospitalização , Humanos , Hospedeiro Imunocomprometido , Imunossupressores/administração & dosagem , Imunossupressores/efeitos adversos , Transplante de Rim/mortalidade , Masculino , Prontuários Médicos , Pessoa de Meia-Idade , Insuficiência Renal/etiologia , Insuficiência Renal/mortalidade , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
20.
Exp Clin Transplant ; 15(Suppl 1): 261-264, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28260482

RESUMO

Fever of unknown origin is a rare condition after solid organ transplant and is generally associated with atypical infections (eg, tuberculosis, fungal infections) and/or lymphoproliferative disorders. Here, we present a kidney transplant patient with a late diagnosis of E148Q mutation-positive familial Mediterranean fever as the cause of fever of unknown origin. A 22-year-old female patient with a previous history of 4 years of hemodialysis and unknown primary renal disease received a deceased-donor kidney transplant at our center 5 years previously. She had an uneventful course in the first 3 years following transplant. After this period, she was hospitalized 3 times during a 4-month period with fever, nausea, vomiting, and atypical abdominal pain. At that time, hemogram results were unremarkable, except for mild leukocytosis and slightly elevated acute-phase reactants; blood, urine, and throat cultures were negative, and there were no remarkable findings on imaging tests. Fever was controlled within 48 hours by administering empiric ampicillin-sulbactam therapy and discontinuing immunosuppressive treatment except steroids. Three successive hospital admissions owing to similar complaints suggested periodic fever syndrome, and therapy with 1 g/day colchicine led to an excellent clinical response with no recurrence of fever or other symptoms. An FMF gene mutation analysis revealed heterozygous E148Q mutation positivity. Continuing the current treatment regimen, the patient did well during at approximately 1.5 years of follow-up. In the Mediterranean region population, familial Mediterranean fever should be considered in the diagnosis of fever of unknown origin in patients who have undergone renal transplant. E148Q mutation-positive familial Mediterranean fever has a subclinical course and renal manifestations that differ from AA amyloidosis during childhood and may be responsible for de novo familial Mediterranean fever after renal transplantation.


Assuntos
Febre Familiar do Mediterrâneo/genética , Febre de Causa Desconhecida/genética , Transplante de Rim/efeitos adversos , Mutação , Pirina/genética , Colchicina/uso terapêutico , Análise Mutacional de DNA , Febre Familiar do Mediterrâneo/diagnóstico , Febre Familiar do Mediterrâneo/tratamento farmacológico , Feminino , Febre de Causa Desconhecida/diagnóstico , Febre de Causa Desconhecida/tratamento farmacológico , Predisposição Genética para Doença , Humanos , Fenótipo , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA