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1.
Langenbecks Arch Surg ; 406(3): 571-585, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33880642

RESUMO

BACKGROUND AND AIMS: The purpose of this review is to provide updated recommendations for the surgical management of primary (pHPT) and renal (rHPT) hyperparathyroidism, formulating a new guideline of the German Association of Endocrine Surgeons (CAEK). METHODS: Evidence-based recommendations for the diagnosis and therapy of pHPT and rHPT were assessed by a multidisciplinary panel using PubMed for a comprehensive literature search together with a structured consensus dialogue (S2k guideline of the Association of the German Scientific Medical Societies, AWMF). RESULTS: During the last 20 years, a variety of new preoperative localization procedures, such as sestamibi-SPECT, 4D-CT, and various PET/CT procedures, were established for pHPT. High-resolution imaging, together with intraoperative parathyroid hormone (IOPTH) measurement, enabled focused or minimally invasive surgery to become the most favored surgical technique. Patients with pHPT and nonlocalizing imaging have a higher risk of multiglandular disease. Surgical therapy provides very high cure rates, with a clear relation to the surgeon's experience in parathyroid procedures. Reoperative parathyroidectomy, children with pHPT or familial forms, and parathyroid carcinoma are addressed and require special surgical expertise. A multidisciplinary team of experienced nephrologists, transplant, and endocrine surgeons should assess the diagnosis and treatment of renal HPT. CONCLUSION: Surgery is the only curative treatment for pHPT and should be considered for all patients with pHPT. For rHPT, a more selective approach is required, and parathyroidectomy is indicated only when conservative treatment options fail. In parathyroid carcinoma, the adequacy of local resection influences local disease control.


Assuntos
Hiperparatireoidismo Primário , Cirurgiões , Criança , Humanos , Hiperparatireoidismo Primário/cirurgia , Procedimentos Cirúrgicos Minimamente Invasivos , Glândulas Paratireoides , Hormônio Paratireóideo , Paratireoidectomia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada
2.
Langenbecks Arch Surg ; 404(4): 385-401, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30937523

RESUMO

BACKGROUND AND AIMS: Previous guidelines addressing surgery of adrenal tumors required actualization in adaption of developments in the area. The present guideline aims to provide practical and qualified recommendations on an evidence-based level reviewing the prevalent literature for the surgical therapy of adrenal tumors referring to patients of all age groups in operative medicine who require adrenal surgery. It primarily addresses general and visceral surgeons but offers information for all medical doctors related to conservative, ambulatory or inpatient care, rehabilitation, and general practice as well as pediatrics. It extends to interested patients to improve the knowledge and participation in the decision-making process regarding indications and methods of management of adrenal tumors. Furthermore, it provides effective medical options for the surgical treatment of adrenal lesions and balances positive and negative effects. Specific clinical questions addressed refer to indication, diagnostic procedures, effective therapeutic alternatives to surgery, type and extent of surgery, and postoperative management and follow-up regime. METHODS: A PubMed research using specific key words identified literature to be considered and was evaluated for evidence previous to a formal Delphi decision process that finalized consented recommendations in a multidisciplinary setting. RESULTS: Overall, 12 general and 52 specific recommendations regarding surgery for adrenal tumors were generated and complementary comments provided. CONCLUSION: Effective and balanced medical options for the surgical treatment of adrenal tumors are provided on evidence-base. Specific clinical questions regarding indication, diagnostic procedures, alternatives to and type as well as extent of surgery for adrenal tumors including postoperative management are addressed.


Assuntos
Neoplasias das Glândulas Suprarrenais/cirurgia , Procedimentos Cirúrgicos Endócrinos/métodos , Técnica Delphi , Medicina Baseada em Evidências , Alemanha , Humanos
3.
Ann R Coll Surg Engl ; 100(1): 33-36, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29022781

RESUMO

Objective To identify and save parathyroid glands during thyroidectomy by displaying their autofluorescence. Methods Autofluorescence imaging was carried out during thyroidectomy with and without central lymph node dissection. After visual recognition by the surgeon, the parathyroid glands and the surrounding tissue were exposed to near-infrared light with a wavelength of 690-770 nm using a modified Karl Storz near infrared/indocyanine green endoscopic system. Parathyroid tissue was expected to show near infrared autofluorescence at 820 nm, captured in the blue channel of the camera. Results We investigated 41 parathyroid glands from 20 patients; 37 glands were identified correctly based on near-infrared autofluorescence. Neither lymph nodes nor thyroid revealed substantial autofluorescence and nor did adipose tissue. Conclusions Parathyroid tissue is characterised by showing autofluorescence in the near-infrared spectrum. This effect can be used to identify and preserve parathyroid glands during thyroidectomy.


Assuntos
Imagem Óptica/métodos , Glândulas Paratireoides/diagnóstico por imagem , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Tireoidectomia/métodos , Estudos de Coortes , Humanos , Glândulas Paratireoides/cirurgia , Glândula Tireoide/diagnóstico por imagem , Glândula Tireoide/cirurgia
4.
Int J Surg Oncol ; 2016: 4785394, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27190644

RESUMO

BACKGROUND: Paratesticular liposarcomas are almost always mistakenly diagnosed as inguinal hernias subsequently followed by inadequate operation. METHODS: 14 consecutive patients with paratesticular liposarcoma were retrospectively reviewed. Preoperative management was evaluated. Disease-free and overall survival were determined. RESULTS: In 11 patients primary and in 3 patients recurrent liposarcoma of the spermatic cord were diagnosed. Regarding primary treatment in primary surgical intervention resection was radical (R0) in 7 of 14 (50%) patients, marginal (R1) in 6 (43%) patients, and incomplete with macroscopic residual tumour (R2) in 1 (7%) patient. Primary treatment secondary surgical intervention was performed in 4 patients: resection was radical (R0) in 3 (75%) patients and marginal (R1) in 1 (25%) patient. Regarding secondary treatment in recurrent disease resection was marginal (R1) in 3 patients (100%). Final histologic margins were negative in 10 patients with primary disease (71%) and positive in 4 patients with subsequent recurrent disease. After radical resection disease-free survival rates at 3 years were 100%. Overall survival at 4.5 years (54 (18-180) months) was 64%. CONCLUSION: An incomplete first surgical step increases the number of positive margins leading to local recurrences and adverse prognoses. Aggressive surgery should be attempted to attain 3-dimensional negative margins.


Assuntos
Neoplasias dos Genitais Masculinos/cirurgia , Lipossarcoma/cirurgia , Recidiva Local de Neoplasia/cirurgia , Neoplasia Residual/cirurgia , Cordão Espermático/cirurgia , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Neoplasias dos Genitais Masculinos/diagnóstico , Neoplasias dos Genitais Masculinos/mortalidade , Humanos , Lipossarcoma/diagnóstico , Lipossarcoma/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/mortalidade , Neoplasia Residual/diagnóstico , Neoplasia Residual/mortalidade , Orquiectomia/métodos , Prognóstico , Estudos Retrospectivos , Cordão Espermático/patologia , Taxa de Sobrevida
5.
Chirurg ; 87(5): 416-22, 2016 May.
Artigo em Alemão | MEDLINE | ID: mdl-26661948

RESUMO

BACKGROUND: Optical coherence tomography (OCT) is a high-resolution imaging technique that allows the identification of microarchitectural features in real-time. OBJECTIVE: Can OCT be used to differentiate parathyroid tissue from other cervical tissue entities? MATERIAL AND METHODS: All investigations were carried out during cervical operations. Initially, ex vivo images were analyzed to define morphological imaging criteria for each tissue entity. These criteria were used to evaluate a first series of ex vivo images. In a second phase the practicability of the technique was investigated in vivo and in the third phase backscattering intensity measurements were analyzed employing linear discriminant analysis (LDA). RESULTS: In the ex vivo series parathyroid tissue could be differentiated from other tissue entities with a sensitivity and specificity of 84  % and 94  %, respectively. Parathyroid tissue was correctly identified in the in vivo series in only 69.2 %. The analysis of backscattering intensity profiles employing LDA reliably distinguished between the different tissue types. CONCLUSION: The OCT images displayed typical characteristics for each tissue entity. Due to technical problems in handling the probe the in vivo OCT images were of much poorer quality. Backscattering intensity measurements illustrated that OCT images provide an individual profile for each tissue entity independent of the defined morphological assessment criteria. The results show that OCT is fundamentally suitable for intraoperative differentiation of tissues.


Assuntos
Glândulas Paratireoides/patologia , Tomografia de Coerência Óptica/métodos , Tecido Adiposo/patologia , Diagnóstico Diferencial , Análise Discriminante , Humanos , Período Intraoperatório , Tecido Linfoide/patologia , Sensibilidade e Especificidade , Glândula Tireoide/patologia
6.
Int J Surg ; 23(Pt A): 62-7, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26369863

RESUMO

BACKGROUND: In most pelvic malignancies radiation therapy is a main part of the treatment concept. The main dose limiting organ is the small intestine. Different mechanical methods to prevent radiation damage to the small intestine have been described. We herein report a retrospective study of laparoscopic placement of an absorbable vicryl mesh in patients requiring pelvic radiotherapy displacing the bowel out of the radiation field. PATIENTS/METHODS: The study included 6 consecutive patients requiring definitive radiotherapy due to locally advanced prostate cancer. All patients had small intestine within the radiation fields despite the use of non-invasive displacement methods. RESULTS: All patients underwent laparoscopic small bowel displacement from the pelvis and closure of the pelvic floor entrance using vicryl mesh placement. Peri- or postoperative complications were not seen. Postoperative radiotherapy planning CT scans confirmed displacement of the small intestine allowing all patients to receive the planned radiotherapy volume. CONCLUSION: Laparoscopic mesh placement represents a safe and efficient procedure in patients requiring high-dose pelvic radiation, presenting with unacceptable small intestine volume in the radiation field. As an alternate to native tissue, the vicryl mesh is a safe, effective substitute for small bowel exclusion from external-beam radiation therapy.


Assuntos
Intestino Delgado/efeitos da radiação , Tratamentos com Preservação do Órgão/métodos , Diafragma da Pelve/cirurgia , Lesões por Radiação/prevenção & controle , Telas Cirúrgicas , Implantes Absorvíveis , Idoso , Humanos , Intestino Delgado/lesões , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Órgãos em Risco/efeitos da radiação , Poliglactina 910 , Neoplasias da Próstata/radioterapia , Doses de Radiação , Lesões por Radiação/etiologia , Radioterapia/efeitos adversos , Dosagem Radioterapêutica , Estudos Retrospectivos
7.
Int J Surg ; 12(10): 1025-30, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25192805

RESUMO

INTRODUCTION: The standard treatment concept in patients with locally advanced adenocarcinoma of the esophagogastric junction is neoadjuvant chemotherapy, followed by tumor resection in curative intent. Response evaluation of neoadjuvant chemotherapy using histopathological tumor regression grade (TRG) has been shown to be a prognostic factor in patients with esophageal cancer. METHODS: We assessed the impact of the various methods of response control and their value in correlation to established prognostic factors in a cohort of patients with adenocarcinoma at the gastroesophageal junction treated by neoadjuvant chemotherapy. RESULTS: After neoadjuvant chemotherapy, in 56 consecutive patients with locally advanced (T2/3/4 and/or N0/N1) esophageal adenocarcinoma an oncologic tumor resection for curative intent was performed. Median follow-up was 44 months. Histopathological tumor stages were stage 0 in 10.7%, stage I in 17.9%, stage II in 21.4%, stage III in 41.1% and stage IV 8.9%. The 3-year overall survival (OS) rate was 30.3%. In univariate analysis, ypN-status, histopathological tumor stage and tumor regression grade correlated significantly with overall survival (p = 0.022, p = 0.001, p = 0.035 respectively). Clinical response evaluation could not predict response and overall survival (p = 0.556, p = 0.254 respectively). CONCLUSION: After preoperative chemotherapy, outcomes of esophageal carcinoma are best predicted utilizing pathological tumor stage and histologic tumor regression. Clinical response assessments were not useful for guidance of treatment.


Assuntos
Adenocarcinoma/mortalidade , Adenocarcinoma/terapia , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/terapia , Junção Esofagogástrica/patologia , Adenocarcinoma/patologia , Idoso , Anastomose Cirúrgica , Quimioterapia Adjuvante , Estudos de Coortes , Neoplasias Esofágicas/patologia , Esofagectomia , Junção Esofagogástrica/cirurgia , Feminino , Gastrectomia , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Recidiva Local de Neoplasia , Prognóstico , Estudos Retrospectivos
8.
Z Gastroenterol ; 52(1): 50-4, 2014 Jan.
Artigo em Alemão | MEDLINE | ID: mdl-24420799

RESUMO

The size of the primary tumour is considered the most important risk factor for the development of metastasis or local recurrence in case of gastrointestinal stromal tumour (GIST). Until now no prospective data are available in the literature about the role of neadjuvant therapy with Imatinib. Between 2009 and 2012 seven patients with a giant GIST > 20 cm underwent a neadjuvant treatment with Imatinib, a radical operation, followed by an adjuvant therapy. These patients were controlled with regard to peri- and postoperative morbidity and disease-free survival. Two patients were considered not resectable and one patient showed liver metastasis at the time of diagnosis. RECIST responses to the neoadjuvant Imatinib were: 2/7 patients with stable disease, 3/7 partial response, 2/7 partial response with down-staging (resectable disease). Because of the following tumour localisations (6 gastric and 1 rectal), six gastrectomies (one en-bloc with left pancreas) and one Holm operation were performed. The patient with simultaneous liver metastasis developed a tumour progression during the follow-up but the others are still tumour free after 2 years. We detected a significant tumour volume regression due to the neadjuvant chemotherapy in cases of GIST > 20 cm (30 %). Our series showed good results for a neadjuvant therapy in cases of giant GIST with the achievement of 100 % R0 resection without a high morbidity rate (in the literature a tumor size > 10 cm and poor localisation is associated to a high risk of R1 - 2 and high morbidity). Peri- and postoperative morbidity are acceptable and the tumour free survival at 2 years is 85 %.


Assuntos
Benzamidas/administração & dosagem , Neoplasias Gastrointestinais/tratamento farmacológico , Neoplasias Gastrointestinais/patologia , Tumores do Estroma Gastrointestinal/tratamento farmacológico , Tumores do Estroma Gastrointestinal/patologia , Piperazinas/administração & dosagem , Pirimidinas/administração & dosagem , Idoso , Antineoplásicos/administração & dosagem , Feminino , Humanos , Mesilato de Imatinib , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante/métodos , Projetos Piloto , Resultado do Tratamento , Carga Tumoral
9.
Infection ; 41(4): 875-9, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23546999

RESUMO

In solid organ transplantation, human cytomegalovirus (HCMV) is considered to be the most important viral pathogen. We report a case of a CMV R-/D+ small intestine transplant recipient with a primary CMV infection on valganciclovir prophylaxis. Sequencing of the HCMV DNA for drug resistance-associated mutations revealed the UL97 mutation N510S. This mutation has been initially reported to confer ganciclovir resistance. Based on in vitro recombinant phenotyping, this assumption has recently been questioned. Switching the antiviral treatment to an intravenous regimen of ganciclovir eliminated HCMV DNAemia, showing the in vivo efficacy of ganciclovir for the UL97 mutation N510S. Hence, knowledge of drug efficacy is crucial for an adequate choice of antiviral medication, carefully balancing antiviral potency versus the risk of harmful side effects.


Assuntos
Antivirais/uso terapêutico , Infecções por Citomegalovirus/tratamento farmacológico , Citomegalovirus/efeitos dos fármacos , Farmacorresistência Viral , Ganciclovir/uso terapêutico , Hospedeiro Imunocomprometido , Transplante , Antivirais/farmacologia , Quimioprevenção/métodos , Citomegalovirus/genética , Citomegalovirus/isolamento & purificação , Infecções por Citomegalovirus/diagnóstico , DNA Viral/genética , Ganciclovir/análogos & derivados , Ganciclovir/farmacologia , Humanos , Masculino , Pessoa de Meia-Idade , Mutação de Sentido Incorreto , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/tratamento farmacológico , Fosfotransferases (Aceptor do Grupo Álcool)/genética , Análise de Sequência de DNA , Resultado do Tratamento , Valganciclovir
10.
Transpl Int ; 24(10): e89-92, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21884552

RESUMO

Heparin-induced thrombocytopenia (HIT) type II is caused by an immune-mediated side effect of heparin anticoagulation resulting in a clotting disorder. In the setting of urgent liver transplantation, the question arises whether a graft from a heparinized donor can be safely transplantated in a recipient with even acute heparin-induced thrombocytopenia type II. We report on a patient with end-stage liver disease and acute HIT II waiting for liver transplantation. Despite the risk of life-threatening complications, an organ procured from a heparinized donor was accepted. Assuming heparin residuals within the graft, the donor organ was flushed backtable with increased amounts of Wisconsin solution. The subsequent transplantation and the postoperative course were uneventful; neither thromboses nor graft dysfunction occurred. Even in acute episode of HIT II with circulating antibodies, a patient may receive an organ from a heparin-treated donor, if adequate precautions during organ preparation are observed.


Assuntos
Doença Hepática Terminal/terapia , Heparina/metabolismo , Transplante de Fígado/métodos , Trombocitopenia/induzido quimicamente , Doença Aguda , Anticoagulantes/uso terapêutico , Feminino , Heparina/uso terapêutico , Humanos , Testes de Função Hepática , Pessoa de Meia-Idade , Contagem de Plaquetas , Risco , Trombocitopenia/terapia , Trombose , Fatores de Tempo , Resultado do Tratamento , Trombose Venosa/prevenção & controle
11.
World J Surg ; 35(11): 2428-31, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21879423

RESUMO

BACKGROUND: Surgery as definitive treatment of pediatric Graves' disease is recommended for children and adolescents experiencing adverse effects of thionamides or disease relapse after at least 2 years of medical treatment. In addition, it is indicated in patients with a large goiter or with suspicious nodules. Total or near-total thyroidectomy should be performed, since subtotal thyroidectomy is associated with a high risk of relapse in this group. Patients should be referred to surgeons experienced in thyroid surgery because studies show that children and adolescents have a higher complication rate than adults. METHODS: This is a retrospective matched case-control study. To analyze postoperative morbidity of children and adolescents (mean age = 15 ± 3 years) with Graves' disease who underwent total thyroidectomy between 2000 and 2010 in our department, a statistically identical group of adults (mean age = 46 ± 3) who also underwent total thyroidectomy for Graves' disease was matched as a control. End points were surgical complications like postoperative bleeding, transient and permanent recurrent laryngeal nerve palsy, and transient and permanent hypoparathyroidism. RESULTS: There was no significant difference in the mean operation time (137 ± 33 min), the rate of intraoperative parathyroid gland autotransplantation (9.5%), postoperative bleeding (4.8%), transient and permanent recurrent laryngeal nerve palsy (4.8 and 0%), and transient and permanent hypocalcemia (28.6 and 0%). CONCLUSION: Total thyroidectomy in children and adolescents with Graves' disease performed in a department that specializes in endocrine surgery is a safe procedure with no higher complication rates than total thyroidectomy in adults with Graves' disease.


Assuntos
Doença de Graves/cirurgia , Tireoidectomia , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Resultado do Tratamento
12.
Chirurg ; 82(4): 375-80; quiz 381, 2011 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-21424289

RESUMO

Cytoreductive surgery followed by hyperthermic intraperitoneal chemotherapy (HIPEC) is now an established therapy with a curative option for patients with gastrointestinal and gynecological peritoneal carcinomatosis as well as for primary peritoneal carcinomatous tumors. Decisive for the prognosis is a complete cytoreduction, which in most cases necessitates multi-organ resection in addition to a partial or subtotal parietal peritonectomy (PE). The highest priority is given to maintain an adequate quality of life for the patient while performing maximum tumor resection. The morbidity following PE and HIPEC in experienced centers lies between 25% and 35% with a mortality risk of <5%. Consideration must be given not only to the technical surgical aspects and the intraoperative decision-making but also to the intraoperative management, intensive care therapy, pain therapy, management of complications, physiotherapy and many more. The greatest challenge in the management of peritoneal carcinomatosis is still patient selection. Computed tomography imaging together with (18)fluorodeoxyglucose positron emission tomography (FDG-PET) plays an important role in the assessment of operability.


Assuntos
Neoplasias Gastrointestinais/cirurgia , Neoplasias dos Genitais Femininos/cirurgia , Neoplasias Peritoneais/secundário , Neoplasias Peritoneais/cirurgia , Quimioterapia Adjuvante , Quimioterapia do Câncer por Perfusão Regional , Terapia Combinada , Feminino , Neoplasias Gastrointestinais/tratamento farmacológico , Neoplasias Gastrointestinais/mortalidade , Neoplasias Gastrointestinais/patologia , Neoplasias dos Genitais Femininos/tratamento farmacológico , Neoplasias dos Genitais Femininos/mortalidade , Neoplasias dos Genitais Femininos/patologia , Humanos , Hipertermia Induzida , Masculino , Estadiamento de Neoplasias , Neoplasias Peritoneais/tratamento farmacológico , Neoplasias Peritoneais/mortalidade , Peritônio/cirurgia , Prognóstico , Qualidade de Vida , Taxa de Sobrevida , Carga Tumoral
13.
Surg Endosc ; 24(12): 3156-60, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20490562

RESUMO

BACKGROUND: The availability of intraoperative intact parathyroid hormone monitoring allows the success of minimally invasive parathyroidectomy to be ensured during the operation. However, false-negative results leading to unnecessary explorations and difficulties in interpreting the data raise concern about the effectiveness of the method. METHODS: Patients with primary hyperparathyroidism (pHPT) and one unequivocally enlarged parathyroid gland on preoperative ultrasound or (99m)Tc-SestaMIBI scintigraphy underwent minimally invasive video-assisted parathyroidectomy according to the technique initially described by Miccoli. Intraoperatively, rapid electrochemiluminescence immunoassay was used to measure intact parathyroid hormone (iPTH) levels before the operation, after complete mobilization of the adenoma (preexcision value), and 5, 10, and 15 min after the excision. The operation was considered successful when more than a 50% decrease in preexcision iPTH levels and subsequent attainment of the normal range within 15 min were observed. RESULTS: Between November 1999 and November 2009, 235 (43%) of 546 patients with pHPT were eligible for a minimally invasive approach. Intraoperative iPTH monitoring showed 221 true-positive, 1 false-positive, 6 false-negative, and 7 true-negative results. This calculated to a sensitivity of 97% and a specificity of 88%. CONCLUSIONS: Despite the availability of high-resolution ultrasound and (99m)Tc-SestaMIBI scintigraphy, the presence of multiple glandular disease cannot be ruled out completely. Although the authors observed six false-negative results, they believe that intraoperative iPTH monitoring represents a valuable asset for minimally invasive parathyroidectomy because it identifies sporadic hyperplasia.


Assuntos
Monitorização Intraoperatória/métodos , Hormônio Paratireóideo/sangue , Paratireoidectomia/métodos , Cirurgia Vídeoassistida , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Hiperparatireoidismo Primário/sangue , Hiperparatireoidismo Primário/cirurgia , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos , Reprodutibilidade dos Testes , Fatores de Tempo
14.
Abdom Imaging ; 35(2): 224-31, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19305941

RESUMO

BACKGROUND: To non-invasively identify incisional hernia repair implanted synthetic meshes with MRI, and also focusing on the evaluation of postsurgical complications such as adhesions. METHODS: A total of 43 patients underwent either laparoscopic intraperitoneal onlay-mesh or open abdominal wall repair using preperitoneal layers. The patients were examined using a true-fast-imaging-with-steady-state-precession (trueFISP)-sequence in transverse/sagittal orientation with a section-by-section dynamic depiction of induced visceral slide. A 9-segment-abdominal-map was used to document the adhesion location/type. The MR-images were analysed regarding hernia relapse, layer-morphology, rectus-abdominis muscle-condition, and abdominal wall mobility. In 12 patients pre- and postsurgery-MRI was performed. RESULTS: Time range between surgery and examination was 6-36 months. In all laparoscopy-patients the meshes were identified. For open surgery the mesh was not visualized in 20, but was seen in 6 cases. A total of 11 cases showed a recurrent hernia. Seventy intraabdominal adhesions were detected. Fifteen patients had restricted mobility. 20 patients showed an rectus-abdominis-muscle-asymmetry. Comparing pre- and post-op-MRI, 6 out of 8 patients with open repair showed thick scar-plaques. Three patients with open repair had new adhesion-formations postoperatively. CONCLUSION: Functional cine MRI is suitable for follow-up studies in patients after hernia repair to detect and evaluate the implanted meshes. Typical complications like intestinal adhesions and abdominal wall dysmotility can be assessed as well.


Assuntos
Hérnia Abdominal/diagnóstico , Hérnia Abdominal/cirurgia , Imagem Cinética por Ressonância Magnética/métodos , Complicações Pós-Operatórias/diagnóstico , Telas Cirúrgicas , Aderências Teciduais/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Laparoscopia , Masculino , Pessoa de Meia-Idade , Polipropilenos , Politetrafluoretileno , Recidiva
15.
HPB Surg ; 2009: 835965, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19794827

RESUMO

OBJECTIVE: The minimal amount of liver mass necessary for regeneration is still a matter of debate. The aim of the study was to analyze liver regeneration factors after extended resection with or without portosystemic shunt. METHODS: An extended left hemihepatectomy was performed in 25 domestic pigs, in 15 cases after a portosystemic H-shunt. The expression of Ki-67, VEGF, TGF-alpha, FGF, and CK-7 was analyzed in paraffin-embedded tissue sections. RESULTS: The volume of the remnant liver increased about 2.5-fold at the end of the first week after resection. With 19 cells/10 Glisson fields versus 4/10, Ki-67-expression was significantly higher in the H-shunt group. VEGF- and CK-7-expressions were significantly higher in the control group. No significant change was found in FGF-expression. The expression of TGF-alpha was higher, but not significantly, in the control group. CONCLUSIONS: The expression of Ki-67, and therefore hepatocyte regeneration, was increased in the shunt group. The expression of CK-7 on biliary epithelium and the expression of VEGF, however, were stronger in the control group.


Assuntos
Hepatectomia , Regeneração Hepática , Derivação Portossistêmica Cirúrgica , Animais , Feminino , Fatores de Crescimento de Fibroblastos/metabolismo , Queratina-7/metabolismo , Antígeno Ki-67/metabolismo , Fígado/metabolismo , Masculino , Suínos , Fator de Crescimento Transformador alfa/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo
16.
Eur J Med Res ; 14(6): 231-9, 2009 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-19541582

RESUMO

OBJECTIVE: Pneumatosis intestinalis has been increasingly detected in recent years with the more frequent use of computed tomography for abdominal imaging of the intestine. The underlying causes of the gas found during radiographic studies of the bowel wall can vary widely and different hypotheses regarding its pathophysiology have been postulated. Pneumatosis intestinalis often represents a benign condition and should not be considered an argument for surgery. However, it can also require life-threatening surgery in some cases, and this can be a difficult decision in some patients. METHODS: The spectrum of pneumatosis intestinalis is discussed here based on various computed tomographic and surgical findings in patients who presented at our University Medical Centre in 2003-2008. We have also systematically reviewed the literature to establish the current understanding of its aetiology and pathophysiology, and the possible clinical conditions associated with pneumatosis intestinalis and their management. RESULTS: Pneumatosis intestinalis is a primary radiographic finding. After its diagnosis, its specific pathogenesis should be ascertained because the appropriate therapy is related to the underlying cause of pneumatosis intestinalis, and this is sometimes difficult to define. Surgical treatment should be considered urgent in symptomatic patients presenting with an acute abdomen, signs of ischemia, or bowel obstruction. In asymptomatic patients with otherwise inconspicuous findings, the underlying disease should be treated first, rather than urgent exploratory surgery considered. Extensive and comprehensive information on the pathophysiology and clinical findings of pneumatosis intestinalis is provided here and is incorporated into a treatment algorithm. CONCLUSIONS: The information presented here allows a better understanding of the radiographic diagnosis and underlying aetiology of pneumatosis intestinalis, and may facilitate the decision-making process in this context, thus providing fast and adequate therapy to particular patients.


Assuntos
Intestinos/patologia , Pneumatose Cistoide Intestinal , Humanos , Intestinos/diagnóstico por imagem , Intestinos/fisiopatologia , Pneumatose Cistoide Intestinal/diagnóstico , Pneumatose Cistoide Intestinal/etiologia , Pneumatose Cistoide Intestinal/cirurgia , Tomografia Computadorizada por Raios X/métodos
17.
Eur J Med Res ; 13(11): 517-24, 2008 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-19073388

RESUMO

INTRODUCTION: In trauma patients, injury of solid abdominal organs secondary to blunt trauma is a major source of morbidity and mortality. Different diagnostic options such as FAST sonography or CT scan have been described. METHODS: Our trauma registry was used to identify multiple injured patients with blunt abdominal trauma during 2001 to 2006. Patient demographics, diagnostic and operative findings, treatment, complications, length of stay and mortality were reviewed. RESULTS: Of 438 multiple injured patients, 58 patients were diagnosed with blunt abdominal trauma. During examination, free fluid or organ injury could be seen in 72.4% during sonography and in 84.3% of the patients who received CT scan, giving a sensitivity of 92% for initial FAST Sonography. Nevertheless, CT scan showed a higher sensitivity in detecting bowel (84%) or mesenteric (75%) injuries, if compared to FAST. 30 (51.7%) of the 58 patients had to undergo laparotomy because of blunt abdominal trauma, giving a laparotomy rate of 6.8% because of blunt abdominal trauma in multiple injured patients. CONCLUSION: Sonography is the method of choice for initial screening and CT scan in detecting bowel or mesenteric injuries. A large intraperitoneal fluid accumulation during initial sonography in combination with unstable vital signs should lead to an immediate exploratory laparotomy.


Assuntos
Traumatismos Abdominais/diagnóstico por imagem , Laparotomia , Tomografia Computadorizada por Raios X , Ferimentos não Penetrantes/diagnóstico por imagem , Traumatismos Abdominais/cirurgia , Adulto , Serviços Médicos de Emergência , Humanos , Pessoa de Meia-Idade , Traumatismo Múltiplo/diagnóstico por imagem , Traumatismo Múltiplo/cirurgia , Valor Preditivo dos Testes , Cuidados Pré-Operatórios , Sistema de Registros , Sensibilidade e Especificidade , Ultrassonografia , Ferimentos não Penetrantes/cirurgia
19.
Transplant Proc ; 40(4): 981-2, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18555095

RESUMO

UNLABELLED: The short cold ischemic tolerance of the gut is a major problem in small bowel transplantation. We have shown that intestinal lipid administration is beneficial during systemic inflammation like sepsis. METHODS: Rats were intestinally infused with either water or 1% olive oil for 12 hours. The small bowel was removed and stored in HTK solution on ice. At t = 0, t = 60, t = 120, t = 180, t = 240, t = 300, t = 360, t = 420, and t = 480 minutes, a tissue sample of the gut was fixed, stained, and analyzed by three independent observers. Damage score was calculated (0 = no damage, 1 = minor damage, 2 = major damage, 3 = loss of structure) for integrity of the mucosa, integrity of the basal membrane of the mucosa, and integrity of villy. The damage score was allocated when all three observers agreed on the same or a higher damage score. RESULTS: In all control animals minor damage for the integrity of the basal membrane occurred within 60 minutes, but in only 50% of the lipid-treated rats. In all control rats, major damage for both integrity of mucosa and villi occurred within 300 minutes or less, but only in 50% of the lipid-treated rats. In all control rats, the structure of the villi was completely lost within 480 minutes or less, whereas only 50% of the lipid treated animals reached maximal damage scores for either mucosa or villi. CONCLUSION: Intestinal lipid administration before cold storage clearly decreases histologic damage of the small bowel and might increase the tolerance for cold ischemia. Lipids or their metabolites stored in enterocytes may act as an antiinflammatory. Intestinal lipid administration in organ donors might be useful to increase cold ischemic tolerance of the small bowel.


Assuntos
Absorção Intestinal , Intestino Delgado/fisiopatologia , Isquemia/fisiopatologia , Lipídeos/fisiologia , Óleos de Plantas/farmacologia , Animais , Mucosa Intestinal/efeitos dos fármacos , Intestino Delgado/irrigação sanguínea , Intestino Delgado/efeitos dos fármacos , Masculino , Azeite de Oliva , Soluções para Preservação de Órgãos , Ratos , Ratos Sprague-Dawley
20.
Eur J Med Res ; 13(4): 182-4, 2008 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-18504175

RESUMO

Ischemic colitis results from insufficient blood supply to the large intestine and is often associated with hypercoagulable states. The condition comprises a wide range presenting with mild to fulminant forms. Diagnosis remains difficult because these patients may present with non-specific abdominal symptoms. We report a 51- year-old female patient with known Leiden factor V mutation as well as systemic lupus erythematous along with antiphospholipid syndrome suffering from recurrent ischemic colitis. At admission, the patient complained about abdominal pain, diarrhea and rectal bleeding lasting for 24 hours. Laboratory tests showed an increased C-reactive protein (29.5 mg/dl), while the performed abdominal CT-scan revealed only a dilatation of the descending colon along with a thickening of the bowel wall. Laparotomy was performed showing an ischemic colon and massive peritonitis. Histological examination proved the suspected ischemic colitis. Consecutively, an anti-coagulation therapy with coumarin and aspirin 100 was initiated. Up to the time point of a follow up examination no further ischemic events had occurred. This case illustrates well the non-specific clinical presentation of ischemic colitis. A high index of suspicion, recognition of risk factors and a history of non-specific abdominal symptoms should alert the clinicians to the possibility of ischemic disease. Early diagnosis and initiation of anticoagulation therapy or surgical intervention in case of peritonitis are the major goals of therapy.


Assuntos
Síndrome Antifosfolipídica/complicações , Colite/complicações , Fator V/genética , Isquemia/complicações , Lúpus Eritematoso Sistêmico/complicações , Síndrome Antifosfolipídica/genética , Síndrome Antifosfolipídica/imunologia , Colite/genética , Colite/imunologia , Feminino , Humanos , Isquemia/genética , Isquemia/imunologia , Lúpus Eritematoso Sistêmico/genética , Lúpus Eritematoso Sistêmico/imunologia , Pessoa de Meia-Idade , Mutação , Recidiva
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