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1.
Ir J Med Sci ; 186(2): 323-327, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-26911860

RESUMO

INTRODUCTION: Extrahepatic Portal Hypertension (EPH) is defined as extrahepatic hypertension of the portal venous system in the absence of liver cirrhosis. Isolated splenic vein stenosis/occlusion as one of the causes of extrahepatic portal hypertension is uncommon, comprising less than 5 % of all cases of portal hypertension. However, it is an increasingly recognised complication of both acute and chronic pancreatitis, and with the advent of more effective diagnostic methods, interventional radiological methods for its management are also becoming more effective. Often these would negate the need for invasive splenectomy surgery for the treatment of symptomatic hypersplenism and varices. METHODS: A case of a 38 year old gentleman, known to have Crohn's disease, presented with severe acute gallstone pancreatitis with necrosis of the pancreatic neck and body. His course was very complicated, requiring two laparotomies and various interventional drainages of variceal bleeds. As a result of non resolving recurrent variceal haemorrhage, it was decided to proceed with splenic vein stenting to relieve the consequences of splenic vein stenosis. A percutaneous transhepatic splenic vein stent was deployed. RESULTS: Immediate decompression of the varices was noted with no further haemmorrhage. CONCLUSION: There are little data to date on splenic vein stenting in the setting of EPH secondary to non-malignant pancreatic disease. We report a case managed successfully with splenic vein stenting and review the existing literature.


Assuntos
Varizes Esofágicas e Gástricas/terapia , Hemorragia Gastrointestinal/terapia , Veia Esplênica , Stents , Adulto , Constrição Patológica/patologia , Drenagem/métodos , Hemorragia Gastrointestinal/etiologia , Humanos , Hipertensão Portal/etiologia , Masculino , Pâncreas/patologia
2.
Ir Med J ; 106(9): 279-80, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24416852

RESUMO

We report the case of a well-controlled female asthmatic who developed 'multiple pulmonary hamartomas' on three separate occasions over a period of 25 years that necessitated surgical resection. To our knowledge, this is the first report of recurrent hamartomas in a single individual necessitating multiple thoracotomies.


Assuntos
Hamartoma/diagnóstico , Hamartoma/cirurgia , Pneumopatias/diagnóstico , Pneumopatias/cirurgia , Asma/complicações , Biópsia , Feminino , Humanos , Recidiva , Testes de Função Respiratória , Toracotomia , Tomografia Computadorizada por Raios X , Adulto Jovem
3.
Ir Med J ; 105(8): 277-8, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23155917

RESUMO

Laparoscopic Nissen fundoplication post-oesophageal stenting is uncommon and yet to be reported. We report the case of a 57-year-old palliative lady who underwent surgery for symptomatic relief of severe gastrooesophageal reflux post-oesophageal stenting. Surgery was carried out successfully with no complications. On the evening post-surgery she was able to lie supine for the first time in months without symptoms of reflux. In conclusion, surgery is still valuable and may play an important role, even in a palliative setting.


Assuntos
Fundoplicatura , Refluxo Gastroesofágico/cirurgia , Laparoscopia , Stents , Carcinoma de Células Escamosas/complicações , Carcinoma de Células Escamosas/secundário , Neoplasias Esofágicas/complicações , Neoplasias Esofágicas/secundário , Estenose Esofágica/etiologia , Feminino , Refluxo Gastroesofágico/etiologia , Humanos , Pessoa de Meia-Idade
4.
Ir Med J ; 105(5): 150-1, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22803495

RESUMO

We report the case of a 71-year-old gentleman who intially developed cutaneous metastases from gastric carcinoma on his chin and cheek resembling sebaceous cysts.


Assuntos
Bochecha , Queixo , Neoplasias Cutâneas/secundário , Neoplasias Gástricas/patologia , Idoso , Biópsia , Diagnóstico Diferencial , Cisto Epidérmico/diagnóstico , Humanos , Masculino , Neoplasias Cutâneas/cirurgia , Neoplasias Gástricas/cirurgia
5.
Surgeon ; 9(6): 300-4, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22041640

RESUMO

BACKGROUND: Laparoscopic adrenalectomy is an attractive alternative to the traditional open approach in the surgical excision of an adrenal gland. It has replaced open adrenalectomy in our institution and we review our experience to date. METHODS: All cases of laparoscopic adrenalectomies in our hospital over eight years (from 2001 to May 2009) were retrospectively reviewed. Patient demographics, diagnosis, length of hospital stay, histology and all operative and post-operative details were evaluated. RESULTS: Fifty-five laparoscopic adrenalectomies (LA) were performed on 51 patients over eight years. The mean age was 48 years (Range 16-86 years) with the male: female ratio 1:2. Twenty-three cases had a right adrenalectomy, 24 had a left adrenalectomy and the remaining four patients had bilateral adrenalectomies. 91% were successfully completed laparoscopically with five converted to an open approach. Adenomas (functional and non functional) were the leading indication for LA, followed by phaeochromocytomas. Other indications for LA included Cushing's disease, adrenal malignancies and rarer pathologies. There was one mortality from necrotising pancreatitis following a left adrenalectomy for severe Cushing's disease, with subsequent death 10 days later. CONCLUSION: Laparoscopic adrenalectomy is effective for the treatment of adrenal tumours, fulfilling the criteria for the ideal minimally invasive procedure. It has replaced the traditional open approach in our centre and is a safe and effective alternative. However, in the case of severe Cushing's disease, laparoscopic adrenalectomy has the potential for significant adverse outcomes and mortality.


Assuntos
Adrenalectomia , Laparoscopia , Adolescente , Adrenalectomia/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Laparoscopia/efeitos adversos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
6.
Surgeon ; 9(4): 191-4, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21672658

RESUMO

INTRODUCTION: Obtaining a place in an Irish medical school is extremely competitive, a situation mirrored in many other countries. We aimed to determine the factors influencing school students in deciding to study medicine in university. We further determined what level of interest exists in pursuing a surgical career after completion of medical school. METHODS: The Royal College of Surgeons in Ireland hosts an annual "Introduction to Medicine" programme for senior school children. Attendees were surveyed using a Likert scale to examine the factors influencing the group in choosing to study medicine, and pursue surgery as their ultimate career choice. RESULTS: A total of 128 completed the survey, giving a response rate of 100%. The opportunity to help others was most the most influential factors cited by students (97%). Males were significantly more likely to have an interest in a career in surgery rather than medicine (p = 0.003), and ranked "financial reward" (p = 0.036) as a more significant factors in influencing career choice than did females. CONCLUSIONS: A clear understanding of these factors influencing our students in their career choices and a strategy of recruitment based on these is imperative in order to optimize recruitment of students most suited to working as doctors.


Assuntos
Escolha da Profissão , Educação de Graduação em Medicina/estatística & dados numéricos , Cirurgia Geral/educação , Faculdades de Medicina , Estudantes de Medicina/estatística & dados numéricos , Adolescente , Feminino , Humanos , Irlanda , Masculino , Inquéritos e Questionários
7.
Ir J Med Sci ; 180(2): 553-5, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21365317

RESUMO

BACKGROUND: Delayed presentation of splenic trauma is a well described entity. METHOD: We report two patients who presented with splenic abnormality found incidentally on imaging for other medical problems. A remote history of splenic trauma was elicited during clinical evaluation; 18 months in one patient and 11 years in the second patient. Both patients underwent surgical exploration. CONCLUSIONS: Radiological investigations could not reassure us that the splenic abnormalities were benign, and their management was the subject of some debate.


Assuntos
Fraturas das Costelas/complicações , Costelas/lesões , Esplenopatias/diagnóstico , Esplenopatias/etiologia , Adulto , Cistos/etiologia , Diagnóstico Diferencial , Feminino , Hematoma/etiologia , Humanos , Pessoa de Meia-Idade , Esplenopatias/cirurgia , Fatores de Tempo
8.
Ir J Med Sci ; 180(3): 655-9, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21298492

RESUMO

BACKGROUND: Post-splenectomy infection has a mortality rate of up to 70%. Previously we have published data confirming the poor adherence to best practice guidelines with relation to management of the asplenic patient. A defined protocol of care was established, staff education commenced and a 'patient information leaflet' made available. AIM: To ascertain whether management of the asplenic patient has improved since the implementation of a structured programme of care. METHOD: Retrospective chart review of all splenectomies performed in Beaumont Hospital between 2002 and 2008. RESULTS: Overall, 75.9% of patients were documented as having received the recommended vaccinations. Of these, 48.7% were not timed according to recommended guidelines. Prophylactic antibiotics were documented as prescribed in all but five patients discharged. CONCLUSIONS: These results demonstrate an improvement in post-splenectomy care between 2002 and 2008. However, further improvements are necessary.


Assuntos
Complicações Pós-Operatórias/terapia , Esplenectomia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibioticoprofilaxia , Protocolos Clínicos , Feminino , Hospitais de Ensino , Humanos , Irlanda , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Púrpura Trombocitopênica Idiopática/cirurgia , Estudos Retrospectivos , Baço/lesões , Esplenectomia/efeitos adversos , Vacinação/estatística & dados numéricos , Adulto Jovem
9.
Br J Anaesth ; 104(3): 292-7, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20124282

RESUMO

BACKGROUND: Perioperative epidural analgesia provides continuous pain control and may have advantages over parenteral opiate administration. This study assessed the impact of epidural analgesia on quality of life (QOL) of patients undergoing major surgery. METHODS: Sixty patients undergoing thoracic or thoraco-abdominal surgery were studied prospectively. Patients were randomly assigned to receive either thoracic epidural analgesia or patient-controlled i.v. opiate analgesia (PCA) after operation. Visual analogue pain and sedation scores were recorded for the period of the study. QOL health surveys at 24 h (SF-8 acute form) and at 1 week (SF-36) were recorded. Results were examined by uni- and multivariate analyses corrected for the effect of multiple comparisons. RESULTS: Mean pain scores were significantly lower in the epidural group at most time points. Physical and mental scores in the epidural group were significantly better than the PCA group for both SF-8 and SF-36 QOL health surveys (P<0.001). CONCLUSIONS: Epidural analgesia with local anaesthetic and opioid improves QOL and delivers better analgesia compared with PCA in patients undergoing major thoraco-abdominal surgery.


Assuntos
Analgesia Epidural/métodos , Analgesia Controlada pelo Paciente/métodos , Dor Pós-Operatória/prevenção & controle , Qualidade de Vida , Abdome/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Analgésicos Opioides/administração & dosagem , Atitude do Pessoal de Saúde , Esofagectomia/reabilitação , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Medição da Dor/métodos , Dor Pós-Operatória/psicologia , Dor Pós-Operatória/reabilitação , Satisfação do Paciente , Estudos Prospectivos , Psicometria , Toracotomia/reabilitação , Adulto Jovem
10.
Surgeon ; 7(2): 101-13, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19408803

RESUMO

INTRODUCTION: Achalasia is a primary oesophageal motility disorder resulting from damage to the ganglion cells of the myenteric plexus. Impaired relaxation of the lower oesophageal sphincter and aperistalsis causes its cardinal symptoms of dysphagia, chest pain and reflux-type symptoms. Management is somewhat controversial, with options including systemic and local pharmacotherapy, dilatation and oesophagomyotomy. We review the presentation, investigation and management of oesophageal achalasia and make an argument for primary surgical management. METHODS: We performed a Medline search of the term 'achalasia', limiting the search to clinical trials and meta-analyses. We then selected articles based on their abstracts using four main criteria: previously unreported findings, previously unreported techniques, size of patient cohort and journal impact factor. References in selected articles were manually searched for other relevant articles. FINDINGS: Achalasia has been managed using a variety of techniques including systemic and local pharmacotherapy, forced dilatation and oesophagomyotomy. Success rates vary widely between techniques. Mechanical disruption ofthe lower oesophageal sphincter is most successful. DISCUSSION: In achalasia, mechanical disruption of the lower oesophageal sphincter using forced dilatation or surgical myotomy offers the only realistic prospect of long-term symptom relief. Recent evidence suggests that previous medical treatment or dilatation makes oesophagomyotomy more difficult and increases the risk of complications. As the morbidity associated with surgery continues to decrease with improvements in minimal access techniques, the argument for primary management of achalasia with oesophagomyotomy becomes more compelling.


Assuntos
Acalasia Esofágica/cirurgia , Dilatação , Endoscopia , Acalasia Esofágica/diagnóstico , Acalasia Esofágica/tratamento farmacológico , Esfíncter Esofágico Inferior , Humanos
11.
Ir J Med Sci ; 177(4): 385-7, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18820990

RESUMO

In automobile accidents, the "seatbelt syndrome" (SBS) consists of a constellation of injuries, predominantly involving thoraco-lumbar vertebral fractures and intraabdominal organ injury. A recent amendment to Irish legislation has made the wearing of seatbelts mandatory for all rear seated passengers in an effort to protect children. Whilst rear seatbelts result in a significant reduction in morbidity and mortality following road traffic accidents (RTA), we present a case in which the rear lap seatbelt caused severe abdominal injuries. It is evident that the current rear seat lapbelt system is an inferior design associated with a significant morbidity and mortality when compared to three-point harness system and consideration should be given to replacing them in all motor vehicles.


Assuntos
Traumatismos Abdominais/etiologia , Acidentes de Trânsito , Automóveis , Pelve , Segurança , Cintos de Segurança/efeitos adversos , Traumatismos Abdominais/diagnóstico , Traumatismos Abdominais/cirurgia , Anastomose Cirúrgica , Colo Sigmoide/lesões , Colo Sigmoide/cirurgia , Humanos , Escala de Gravidade do Ferimento , Perfuração Intestinal/etiologia , Perfuração Intestinal/cirurgia , Jejuno/lesões , Jejuno/cirurgia , Síndrome
12.
Ir J Med Sci ; 174(4): 39-41, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16445159

RESUMO

BACKGROUND: Laparoscopic adrenalectomy is an attractive alternative to open surgery, but making the transition can be difficult. AIM: To evaluate the initial experience of a general surgical team at a single institution at making the transition. METHODS: The details of 15 patients undergoing laparoscopic adrenalectomy were prospectively recorded over a 21-month period. RESULTS: Fifteen glands were removed from fifteen patients. Nine of these were left-sided. The mean gland size was 3.4 cm. Pathology included six non-functioning adenomas, four Conn's syndrome, two Cushing's syndrome and three phaeochromocytomas. Mean operating time was 74 minutes (range 31-172 minutes), with one conversion to open procedure. There were no morbidities and no mortality. CONCLUSION: Our initial experience demonstrates this approach to be the ideal technique for removal of benign adrenal tumours with significant advantages for the patient.


Assuntos
Doenças das Glândulas Suprarrenais/cirurgia , Adrenalectomia/métodos , Laparoscopia/métodos , Doenças das Glândulas Suprarrenais/patologia , Neoplasias das Glândulas Suprarrenais/patologia , Neoplasias das Glândulas Suprarrenais/cirurgia , Adrenalectomia/efeitos adversos , Adulto , Idoso , Feminino , Seguimentos , Humanos , Irlanda , Laparoscopia/efeitos adversos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/diagnóstico , Dor Pós-Operatória/epidemiologia , Satisfação do Paciente , Complicações Pós-Operatórias/epidemiologia , Estudos Prospectivos , Estudos de Amostragem , Resultado do Tratamento
13.
Ir Med J ; 97(6): 178-9, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15305621

RESUMO

Retroperitoneal liposarcoma is a rare tumour that often presents late due to its indolent nature and large potential growing space. Total resection is the aim, including adjacent organs if necessary. Recurrence is common, and 5-year disease-free interval is not regarded as a cure. We present a case of a 57 year old man who had a 17 kg liposarcoma surgically excised.


Assuntos
Lipossarcoma/cirurgia , Neoplasias Retroperitoneais/cirurgia , Humanos , Lipossarcoma/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Neoplasias Retroperitoneais/diagnóstico por imagem , Tomografia Computadorizada por Raios X
14.
Ir J Med Sci ; 173(3): 136-40, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15693382

RESUMO

INTRODUCTION: Overwhelming post-splenectomy infection (OPSI) has a 50-70% mortality rate and carries a lifetime risk for the asplenic patient. Specific British guidelines have been developed to reduce its incidence. AIMS: To determine whether British guidelines were being followed in our own institution and what impact they had on overwhelming post-splenectomy infection. METHODS: Retrospective chart review of 100 splenectomies performed by Department of Surgery, Beaumont Hospital from January 1990 to January 2000. RESULTS: Twenty per cent of patients were discharged without any recommended vaccinations. Prophylactic antibiotics were not prescribed in 53% of patients. Just 12% of charts document a verbal explanation of the complications and management of asplenia to the patient. Overall septic mortality was 12%, of whom 8% died in hospital and 4% after discharge. CONCLUSION: Management of the asplenic patient has improved but is far from complete. A central register of asplenic patients and national asplenic guidelines should be established in Ireland to ensure optimum patient care.


Assuntos
Infecções Bacterianas/prevenção & controle , Fidelidade a Diretrizes , Infecções Oportunistas/prevenção & controle , Cuidados Pós-Operatórios/normas , Complicações Pós-Operatórias/prevenção & controle , Esplenectomia/efeitos adversos , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Infecções Bacterianas/epidemiologia , Infecções Bacterianas/imunologia , Feminino , Hospitais de Ensino/normas , Humanos , Hospedeiro Imunocomprometido , Incidência , Irlanda , Masculino , Pessoa de Meia-Idade , Infecções Oportunistas/epidemiologia , Infecções Oportunistas/microbiologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/imunologia , Guias de Prática Clínica como Assunto , Sistema de Registros , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Distribuição por Sexo , Esplenectomia/métodos , Taxa de Sobrevida
15.
Ir J Med Sci ; 173(3): 164-5, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15693389

RESUMO

BACKGROUND: Dieulafoy's lesion is a rare cause of gastrointestinal haemorrhage. It has traditionally been treated either endoscopically or with open surgery. AIM: To describe a case treated by arterial embolization. RESULTS: Initially the patient was embolized with Gelfoam pledgets but re-bled at 7 days, the procedure was repeated with fibre coils, there was no further bleeding. CONCLUSION: Arterial embolization is being used increasingly as a first line of treatment as it is fast and minimally invasive with few complications.


Assuntos
Malformações Arteriovenosas/terapia , Embolização Terapêutica/métodos , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/terapia , Idoso , Malformações Arteriovenosas/diagnóstico , Seguimentos , Mucosa Gástrica/patologia , Hemostase Endoscópica/métodos , Humanos , Masculino , Medição de Risco , Índice de Gravidade de Doença , Resultado do Tratamento
16.
J Clin Pathol ; 56(6): 478-9, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12783979

RESUMO

This report describes a case of well differentiated fetal adenocarcinoma of the lung in a 29 year old female smoker. The histological pattern and immunohistochemical profile were consistent with well differentiated fetal adenocarcinoma and the patient made an uneventful postoperative recovery with no recurrence after 18 months. This neoplasm is a rare lung tumour that is composed of glycogen rich neoplastic glands and tubules that resembles fetal lung at 10 to 15 weeks of gestation. It is important to identify this rare variant of adenocarcinoma because it is a low grade malignancy with low associated mortality.


Assuntos
Adenocarcinoma/patologia , Neoplasias Pulmonares/patologia , Adulto , Diferenciação Celular , Diagnóstico Diferencial , Feminino , Feto/patologia , Seguimentos , Humanos , Prognóstico , Blastoma Pulmonar/diagnóstico
17.
Cancer ; 92(10): 2648-57, 2001 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-11745200

RESUMO

BACKGROUND: Lung carcinoma usually is advanced at the time of presentation and frequently shows metastatic spread. In recent times, prognostic factors such as c-erbB-2 in patients with breast carcinoma have provided useful information and beneficial therapeutic targets. The objective of this study was to evaluate angiogenesis, immune function, and telomerase expression in patients with nonsmall cell lung carcinoma (NSCLC) to determine their prognostic significance. METHODS: Immunohistochemistry was used to evaluate the expression of human telomerase reverse transcriptase (hTERT; n = 115 patients), interleukin-2r (IL-2r; n = 40 patients), microvessel density (MVD; n = 81 patients), and vascular endothelial growth factor (VEGF; n = 61 patients). Three-year survival follow-up information was available for most patients, and a comprehensive review of clinicopathologic features was carried out. RESULTS: Fifty percent of tumors showed nuclear staining for hTERT, 55% of tumors showed some degree of lymphocyte IL-2r expression, 33% of tumors were recorded with an MVD that was higher than average, and VEGF staining was detected in 85% of tumors. None of the parameters measured had an impact on survival. hTERT expression was correlated with lymph node status. Lymph node status and tumor size were identified as independent prognostic factors. CONCLUSIONS: This study failed to identify a marker of prognosis for patients with NSCLC other than tumor size and lymph node status in this population. Telomerase expression was associated with metastases, raising the possibility that this enzyme is involved in the metastatic process. Tumor cell VEGF expression was identified frequently: This growth factor may have potential as a target for antiangiogenic therapy. Lung carcinoma typically is the result of large numbers of mutations. Further understanding of the biologic implications of these mutations will lead to the development of effective prognostic markers and treatments for patients with NSCLC.


Assuntos
Biomarcadores Tumorais/análise , Carcinoma Pulmonar de Células não Pequenas/patologia , Neoplasias Pulmonares/patologia , Neovascularização Patológica , Telomerase/biossíntese , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/imunologia , Proteínas de Ligação a DNA , Feminino , Seguimentos , Humanos , Imuno-Histoquímica , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/imunologia , Metástase Linfática , Masculino , Microcirculação , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Receptores de Interleucina-2/biossíntese , Análise de Sobrevida
18.
Br J Biomed Sci ; 58(3): 177-83, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11575741

RESUMO

Cellular response to treatment is dependent on the metabolic preconditioning of individual cells, which is a reflection of environmental conditions. Within solid tumours there are areas of different oxygen tension, which, we hypothesise, may indicate that cells are exposed to conditions that change continually. Other characteristics of the solid-tumour microenvironment include the production of growth factors, one of which is transforming growth factor (TGF)-beta1. As part of this study, we measured TGF-beta1 and found it raised in the serum of breast cancer patients compared with controls (98.24+/-13.25 vs. 48.87+/-12.14 ng/mL; P < 0.05; n = 7), and in the conditioned medium of breast tumour explant tissue compared with matched normal tissue (21.1+/-5.3 vs. 4.7+/-1.2 ng TGF-beta1/gram of tissue; P < 0.05; n = 11). Nitric oxide (NO) is a cytotoxic molecule produced by a large number of cells and thought to have antimetastatic properties. In order to observe the effect of conditions within breast tumours on NO production, we exposed macrophages, endothelial cells and tumour cells to hypoxia re-oxygenation in vitro, both in the presence and absence of TGF-beta1. Hypoxia stimulated increased NO production in both macrophages (normoxia: 0.34+/-0.04 nmol/L nitrite vs. hypoxia: 1.04+/-0.18 nmol/L nitrite; P < 0.05) and endothelial cells (normoxia: 0.02+/-0.01 nmol/L nitrite vs. hypoxia: 0.21+/-0.07 nmol/L nitrite; P < 0.05). NO production in macrophages, endothelial cells and tumour cells was reduced significantly following hypoxia in the presence of TGF-beta1 in a concentration-dependent manner. These results suggest that, within breast tumours, tumour-derived TGF-beta1 in combination with environmental conditions may result in decreased local NO production, which could have implications for tumour growth.


Assuntos
Neoplasias da Mama/metabolismo , Óxido Nítrico/biossíntese , Fator de Crescimento Transformador beta/biossíntese , Hipóxia Celular/fisiologia , Feminino , Humanos , Macrófagos/metabolismo , Células Tumorais Cultivadas
19.
Eur J Gastroenterol Hepatol ; 13(8): 993-5, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11507371

RESUMO

Wegener's granulomatosis is a rare necrotizing vasculitis usually affecting the respiratory tract and kidneys. The aetiology is unknown and it usually occurs in patients over the age of 40. Involvement of the gastrointestinal tract in Wegener's granulomatosis is relatively rare and usually occurs long after the onset of initial symptoms. Acute colitis as a presenting feature of Wegener's granulomatosis is very rare with only a few reports in the literature. We describe a young woman who presented initially to hospital with gastrointestinal features and then developed a severe colitis and severe gastrointestinal haemorrhage. This preceded the development of respiratory tract features with severe pulmonary haemorrhage, haemoptysis and the development of rapidly progressive renal failure and nasal septal perforation. Following treatment with intravenous steroids and cyclophosphamide, gastrointestinal symptoms and signs improved dramatically, as did her pulmonary disease. She still remains dialysis dependent, due to end-stage renal disease secondary to glomerulonephritis.


Assuntos
Colite/etiologia , Hemorragia Gastrointestinal/etiologia , Granulomatose com Poliangiite/complicações , Doença Aguda , Adulto , Feminino , Granulomatose com Poliangiite/diagnóstico , Granulomatose com Poliangiite/tratamento farmacológico , Humanos
20.
Ir J Med Sci ; 168(1): 10-2, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10098335

RESUMO

Surgical myotomy is the mainstay of treatment for oesophageal achalasia. Minimally invasive surgical techniques, if feasible, reduce patient morbidity and mortality. In this study we review our experience of thoracoscopic Heller's myotomy. Thoracoscopic myotomy was undertaken in 9 patients (male = 3; female = 6, mean age = 37). All patients presented with dysphagia of 1 to 8 yr duration. Diagnosis was based on barium swallow and manometry. Two patients had previous dilatations and 1 had a transabdominal myotomy. All patients had a 5 port thoracoscopic technique. Thoracoscopic Heller's myotomy was completed in 8 out of 9 patients. In 1 patient extensive oesophagitis and peri-oesophagitis precluded both a thoracoscopic and an open myotomy, and oesophagectomy was subsequently performed. The mean duration of surgery was 142 min. Completion of myotomy and mucosal integrity was confirmed by intraoperative gastroscopy. All patients had an uneventful post-operative recovery. The mean hospital stay was 4 days. All patients are now asymptomatic, with documented weight gain. No patients have reflux oesophagitis symptoms. Our preliminary experience would suggest that thoracoscopic Heller's myotomy is a safe alternative to open surgery, with satisfactory results and reduced hospital stay.


Assuntos
Acalasia Esofágica/cirurgia , Junção Esofagogástrica/cirurgia , Laparoscopia/métodos , Adulto , Idoso , Acalasia Esofágica/diagnóstico , Esôfago/cirurgia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Liso/cirurgia , Toracoscopia/métodos , Resultado do Tratamento
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