RESUMO
Radio-guided localization (RGL) for identifying occult breast lesions has been widely accepted as an alternative technique to other localization methods, including those using wire guidance. An appropriate phantom model would be an invaluable tool for practitioners interested in learning the technique of RGL prior to clinical application. The aim of this study was to devise an inexpensive and reproducible training phantom model for RGL. We developed a simple RGL phantom model imitating an occult breast lesion from inexpensive supplies including a pimento olive, a green pea and a turkey breast. The phantom was constructed for a total cost of less than $20 and prepared in approximately 10 min. After the first model's construction, we constructed approximately 25 additional models and demonstrated that the model design was easily reproducible. The RGL phantom is a time- and cost-effective model that accurately simulates the RGL technique for non-palpable breast lesions. Future studies are warranted to further validate this model as an effective teaching tool.
Assuntos
Doenças Mamárias/diagnóstico por imagem , Radioisótopos do Iodo/farmacocinética , Imagens de Fantasmas/economia , Doenças das Aves Domésticas/diagnóstico por imagem , Compostos Radiofarmacêuticos/farmacocinética , Animais , Doenças Mamárias/economia , Doenças Mamárias/metabolismo , Doenças Mamárias/patologia , Feminino , Humanos , Doenças das Aves Domésticas/economia , Doenças das Aves Domésticas/metabolismo , Doenças das Aves Domésticas/patologia , Cintilografia , Ensino , Distribuição Tecidual , PerusAssuntos
Neoplasias Ósseas , Neoplasias da Mama , Osteossarcoma , Tumor Filoide , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/cirurgia , Transformação Celular Neoplásica , Feminino , Humanos , Osteossarcoma/diagnóstico por imagem , Osteossarcoma/cirurgia , Tumor Filoide/diagnóstico por imagem , Tumor Filoide/cirurgiaRESUMO
Prof. Dr. René Leriche was a famous French surgeon who lived between 1879 and 1955. After working as a vascular surgeon in Lyon, he was appointed professor at the University of Strasbourg in 1924 and later the Paris Collége de France in 1937. Leriche had proposed vascular patches as the ideal treatment for obliterated vascular segments and advocated the necessity of sympathectomy in arterial diseases in the 1920s. He defined "Leriche Syndrome" in 1923 which is known by his name and which develops as a result of incomplete obstruction of the aortic bifurcation. René Leriche wrote a monograph entitled "La Chirurgie de la Douleur-Pain Surgery" in 1940 and he also became a pioneer in the sympathectomy procedure for pain treatment. René Leriche focused on topics that must be remembered again today, including surgery advanced into science, the physiological basis of surgery, research methods, as well as issues such as business technology, humanity in surgery, surgical essence and surgeon's qualifications in the book entitled "La Philosophie de la Chirurgie-Philosophy of Surgery" that he wrote in 1951. In this review, the issues that Prof. Dr. René Leriche addressed in middle of the 20(th) century were revised in the light of contemporary medical ethics.
RESUMO
BACKGROUND: This prospective randomized clinical study was conducted to evaluate the need for drainage after rhomboid excision and a Limberg flap (RELIF) for the treatment of pilonidal sinus. METHODS: One hundred one patients undergoing the RELIF procedure were randomly treated with drainage or not. Operating time, postoperative pain assessed on a visual analogue scale (VAS), total amount of intramuscular analgesic administered, hospital stay, complications, recurrence rate, and patient satisfaction were assessed. RESULTS: The mean operating time (P = 0.036), VAS scores on postoperative day 0 (P = 0.039) and day 1 (P = 0.006), intramuscular analgesic requirement (P = 0.009), mean amount of intramuscular analgesic administered (P = 0.025), complication rate (P = 0.027), and mean hospital stay (P = 0.0001) were significantly reduced in the non-drained group. The recurrence rate was similar in the two groups (P = 0.32). CONCLUSIONS: This study indicates that drain placement after the RELIF procedure might negatively affect the postoperative outcomes of patients with pilonidal sinus. On the basis of these finding, we suggest that the use of drains may not be necessary after the RELIF procedure for the treatment of pilonidal sinus.
Assuntos
Drenagem , Seio Pilonidal/cirurgia , Retalhos Cirúrgicos , Adulto , Feminino , Humanos , Masculino , Dor Pós-Operatória/prevenção & controle , Satisfação do Paciente , Estudos ProspectivosRESUMO
OBJECTIVE: To investigate the effect of recurrent laryngeal nerve (RLN) identification on the complications after total thyroidectomy and lobectomy. METHODS: Total 134 consecutive patients undergoing total thyroidectomy or thyroid lobectomy from January 2003 to November 2004 were investigated retrospectively. Patients were divided into two groups: RLN identified (Group A) or not (Group B). The two groups were compared for RLN injury and hypocalcaemia. RESULTS: The numbers of patients and nerves at risk were 71 and 129 in Group A, and 63 and 121 in Group B, respectively. RLN injury in Group A (0) was significantly lower than that in Group B (5 [7.9%]) patients, 7 [5.8%] nerves) for the numbers of patients (P=0.016) and nerves at risk (P=0.006). Temporary hypocalcaemia was significantly higher in Group A than in Group B (14 [24.1%] vs 6 [10.3%], P=0.049). Permanent complications in Group B were significantly higher than those in Group A (13 [20.6%] vs 4 [5.6%], P=0.009). CONCLUSION: RLN injury was prevented and permanent complications were decreased by identifying the whole course and branches of the recurrent laryngeal nerve during total thyroidectomy.
Assuntos
Nervo Laríngeo Recorrente/anatomia & histologia , Tireoidectomia/métodos , Adulto , Dissecação/efeitos adversos , Dissecação/métodos , Feminino , Bócio/cirurgia , Bócio Nodular/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Traumatismos do Nervo Laríngeo Recorrente , Estudos Retrospectivos , Fatores de Risco , Segurança , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/efeitos adversosRESUMO
OBJECTIVE: This prospective randomized clinical trial was conducted to evaluate the necessity of drainage after total thyroidectomy or lobectomy for benign thyroidal disorders. METHODS: A total of 116 patients who underwent total thyroidectomy or lobectomy for benign thyroidal disorders were randomly allocated to be drained or not. Operative and postoperative outcomes including operating time, postoperative pain assessed by visual analogue scale (VAS), total amount of intramuscular analgesic administration, hospital stay, complications, necessity for re-operation and satisfaction of patients were all assessed. RESULTS: The mean operating time was similar between two groups (the drained and non-drained groups). The mean VAS score was found to be significantly low in the non-drained group patients in postoperative day (POD) 0 and POD 1. The mean amount of intramuscular analgesic requirement was significantly less in the non-drained group. One case of hematoma, two cases of seroma and three cases of transient hypoparathyroidism occurred in the non-drained group, whereas one case of hematoma, two cases of seroma, two cases of wound infections and two cases of transient hypoparathyroidism occurred in the drained group. No patient needed re-operation for any complication. The mean hospital stay was significantly shorter and the satisfaction of patients was superior in the non-drained group. CONCLUSION: These findings suggest that postoperative complications cannot be prevented by using drains after total thyroidectomy or lobectomy for benign thyroid disorders. Furthermore, the use of drains may increase postoperative pain and the analgesic requirement, and prolong the hospital stay. In the light of these findings, the routine use of drains might not be necessary after thyroid surgery for benign disorders.
Assuntos
Drenagem/métodos , Complicações Pós-Operatórias/prevenção & controle , Tireoidectomia/métodos , Adulto , Feminino , Hematoma/prevenção & controle , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Dor , Estudos Prospectivos , Procedimentos Cirúrgicos Operatórios/métodos , Doenças da Glândula Tireoide/cirurgia , Resultado do TratamentoRESUMO
The newest development in sentinel lymph node imaging is portable gamma probe imaging. In this case report, results of all SLN detection methods were analyzed. The patient was imaged using a large field-of-view gamma camera with additional blue dye administration and intraoperative localization of sentinel lymph node using both gamma probe and portable gamma camera was performed. In this case report, the value of additional portable gamma camera imaging was analyzed.
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BACKGROUND: l-Carnitine is the essential endogenous factor for the transport of long-chain fatty acids from the cytoplasm to within the mitochondrion where the ß-oxidation process takes place. l-Carnitine is a superoxide scavenger and an antioxidant that possesses an anti-ischemic action and a stabilizing effect on cell membranes. It may be of help in liver ischemia reperfusion injury. RESULTS regarding the effects of l-carnitine on liver ischemia and reperfusion injury are few and conflicting. OBJECTIVE: The aim of this study was to investigate the efficacy of exogenous l-carnitine on lipid peroxidation and protecting liver at different stages of experimental total warm hepatic ischemia-reperfusion (TWHIR) procedure in rats. METHODS: This experimental study in healthy, weanling, male Wistar rats (weighing 180-200 g) was conducted at the Experimental Animal Research Laboratory of the Faculty of Medicine of Mersin University, Mersin, Turkey. Rats were randomly divided into 5 groups: (A) Control group; (B) TWHIR procedure only; (C) l-carnitine administered 2 hours before the TWHIR procedure; (D) l-carnitine administered just before the TWHIR procedure; and (E) l-carnitine administered after total warm hepatic ischemia but just before the reperfusion procedure. Total warm hepatic ischemia (via the Pringle maneuver) and reperfusion were performed for 45 and 30 minutes, respectively. l-Carnitine (200 mg/kg) was administered intravenously. At the end of each procedure a blood sample was drawn and total hepatectomy was performed following reperfusion. Malondialdehyde (MDA) and myeloperoxidase (MPO) levels of both plasma and liver tissue, total antioxidant capacity (TAOC), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in plasma, and histopathologic examination were analyzed to assess lipid peroxidation and damage in liver tissue. RESULTS: Thirty-four rats (mean [SD]age, 59.26 [1.2]days; mean [SD] weight, 194.1 [5.1] g) were used in the study. There was a significant difference observed between groups A (n = 5) and B (n = 5) for all evaluation parameters. The TWHIR procedure performed in group B was associated with significant increases versus baseline in ALT, AST, MDA, and MPO in plasma, and MDA and MPO in liver tissue, but a significant decrease of TAOC in plasma. ALT, AST, serum and liver MDA, and MPO levels of group B were significantly higher than all groups administered l-carnitine. l-Carnitine administration between total warm hepatic ischemia and reperfusion was associated with a significant attenuation in all parameters. The liver MDA levels of groups C (n = 8) and D (n = 8) were significantly lower than that of group E (n = 8) (mean [SD]: C, 16.53 [3.32] and D, 18.28 [1.67] vs E, 23.05 [3.52]; P = 0.001 and P = 0.016, respectively). The mean (SD) liver MPO level of group C (1.09 [0.16]) was significantly lower than that of groups D (2.12 [0.25]) and E (2.11 [0.28]) (both, P = 0.001). The TAOC of group B (0.77 [0.12]) was significantly lower than that of groups C (1.34 [0.19]) and D (1.08 [0.20]) (P = 0.001 and P = 0.015, respectively). The TAOC of group C was significantly higher than that of the other l-carnitine groups (E, 0.94 [0.13]) (P = 0.023 vs group D; and P = 0.001 vs group E). Histopathologic scores of groups A, C, and E were significantly lower than that of group B, but the difference between groups B and D was not statistically significant. CONCLUSIONS: In this experimental study, administration of exogenous l-carnitine was associated with significantly decreased lipid peroxidation in plasma and liver tissue when administered prior to a TWHIR procedure. In addition, l-carnitine seemed to be more effective with regard to decreasing lipid peroxidation in liver tissue when administered before warm hepatic ischemia. l-Carnitine was associated with significantly decreased leukocyte sequestration in plasma and liver tissue. A significant increase in TAOC was associated with l-carnitine administered prior to ischemia. These observations suggest that l-carnitine might have a protective effect against ischemia-reperfusion injury in rat liver tissue.
RESUMO
BACKGROUND: Environmental habitat may play a role in clinical disparities of primary hyperparathyroidism (pHPT) patients. AIMS: To compare preoperative clinical symptoms and associated conditions and surgical findings in patients with pHPT, living in different geographical regions from the Black Sea, Mediterranean and Anatolia regions. STUDY DESIGN: Retrospective, clinical-based multi-centric study of 694 patients with pHPT. METHODS: Patients from 23 centers and 8 different geographical regions were included. Data related to baseline demographics, clinical, pathologic and treatment characteristics of 8 regions were collected and included age, gender, residential data, symptoms, history of fracture, existence of brown tumor, serum total Ca and p levels, serum parathormone (PTH) levels, serum 25-OH vitamin D levels, bone mineral density, size of the resected abnormal parathyroid gland(s), histology, as well as the presence of ectopia, presence of dual adenoma, and multiple endocrine neoplasia (MEN)- or familial-related disease. RESULTS: The median age was 54. Asymptomatic patient rate was 25%. The median PTH level was 232 pg/mL and serum total Ca was 11.4 mg/dL. Eighty-seven percent of patients had an adenoma and 90% of these had a single adenoma. Hyperplasia was detected in 79 patients and cancer in 9 patients. The median adenoma size was 16 mm. Significant parameters differing between regions were preoperative symptoms, serum Ca and p levels, and adenoma size. All patients from South-East Anatolia were symptomatic, while the lowest p values were reported from East Anatolia and the largest adenoma size, as well as highest Ca levels, were from Bulgaria. CONCLUSION: Habitat conditions vary between geographical regions. This affects the clinicopathological features of patients with pHPT.
Assuntos
Fenômenos Bioquímicos , Sistemas de Distribuição no Hospital/estatística & dados numéricos , Hiperparatireoidismo Primário/fisiopatologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Mar Negro/epidemiologia , Cálcio/análise , Cálcio/sangue , Feminino , Humanos , Hiperparatireoidismo Primário/epidemiologia , Hiperparatireoidismo Primário/patologia , Masculino , Região do Mediterrâneo/epidemiologia , Pessoa de Meia-Idade , Hormônio Paratireóideo/análise , Hormônio Paratireóideo/sangue , Estudos Retrospectivos , Turquia/epidemiologia , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/epidemiologiaRESUMO
Rho/Rho-kinase-mediated pathway has been involved in a variety of physiological processes, including Ca2+ sensitization, which enhances smooth muscle contraction. In this study, first of all we investigated the expression of Rho-kinase (ROCK-2) and then the role of this protein in the control of smooth muscle contraction in the isolated human gallbladder. For this purpose, we examined the effects of a selective Rho-kinase inhibitor, (+)- (R)-trans-4-(1-aminoethyl)-N-(4-pyridyl) cyclohexanecarboxamide dihydrochloride monohydrate (Y-27632, 10(-8)-3x10(-5) M) on carbachol (10(-8)-10(-4) M), cholecystokinin-8 (10(-8) M), endothelin-1 (10(-8) M), histamine (10(-5) M), neurokinin A (10(-7)-10(-6) M), 5-hydroxytryptamine (10(-6)-10(-5) M) and potassium chloride (KCl, 25-50 mM)-induced contractions as well as spontaneous contractile activity. Y-27632 (10(-5) M) significantly reduced 5-hydroxytryptamine, neurokinin A and KCl-induced contractions. Moreover, this Rho-kinase inhibitor (10(-8)-3x10(-5) M, cumulatively) relaxed the contractions produced by cholecystokinin-8, endothelin-1 and histamine in a concentration-dependent manner, being the pEC50 values for Y-27632 5.74+/-0.12, 5.33+/-0.09 and 5.95+/-0.18, respectively. Carbachol (10(-8)-10(-4) M) produced concentration-dependent contractions, which were also inhibited significantly by Y-27632. In addition, the spontaneous contractile activity was suppressed in the presence of Y-27632 (10(-6)-10(-5) M). Moreover, Western blot analysis has revealed that Rho-kinase is expressed in homogenates of the human gallbladder. Taken together, these results show that Rho-kinase is expressed in the human gallbladder, and it has an essential role in agonists and depolarization-induced contractions as well as spontaneous contractile activity.
Assuntos
Vesícula Biliar/fisiologia , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Contração Muscular/fisiologia , Proteínas Serina-Treonina Quinases/metabolismo , Idoso , Amidas/farmacologia , Western Blotting , Carbacol/farmacologia , Colecistocinina/farmacologia , Relação Dose-Resposta a Droga , Endotelina-1/farmacologia , Inibidores Enzimáticos/farmacologia , Feminino , Vesícula Biliar/efeitos dos fármacos , Histamina/farmacologia , Humanos , Técnicas In Vitro , Peptídeos e Proteínas de Sinalização Intracelular/antagonistas & inibidores , Masculino , Pessoa de Meia-Idade , Contração Muscular/efeitos dos fármacos , Neurocinina A/farmacologia , Fragmentos de Peptídeos/farmacologia , Cloreto de Potássio/farmacologia , Proteínas Serina-Treonina Quinases/antagonistas & inibidores , Piridinas/farmacologia , Serotonina/farmacologia , Quinases Associadas a rhoRESUMO
In this study, we aimed to investigate the postoperative pain relief effect of preoperative tenoxicam usage in patients who undergo elective laparoscopic cholecystectomy or groin hernia repair. Eighty patients undergoing laparoscopic cholecystectomy or groin hernia repair procedures were randomized to receive either physiologic serum at 100 mL (group I, n = 40) or 20 mg iv tenoxicam (group II, n = 40) immediately before induction. Postoperative analgesic requirement, peroperative side effects and complications of drugs, operating time, post-operative mobilization time and pain score, hospitalization time, and patient pleasure were recorded. Postoperative pain was assessed by the visual analogue scale (VAS) on the recovery unit (RU), at 4, 8, and 24 h and every day at the same times in the morning. The RU median VAS score was also not different when Group 1 was compared with Group 2 (p = .97). However, the postoperative 4-h and 8-h median VAS score was significantly less (p = .01 and p = .03, respectively); first postoperative mobilization time was earlier in group 2 (p = .32). The median pain score and intramuscular analgesic requirement of patients were also reduced in Group 2 in postoperative day 1 (p = .015). The median duration of intramuscular analgesic requirement and total amount of intramuscular analgesic used in patients were also significantly less in Group 2 (p = .0001 and p = .0001, respectively). Thus, this study showed that preoperative use of iv tenoxicam is safe, simple, and effective for postoperative pain relief after laparoscopic cholecystectomy or inguinal hernia repair.
Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Piroxicam/análogos & derivados , Piroxicam/uso terapêutico , Analgésicos/uso terapêutico , Anti-Inflamatórios não Esteroides/administração & dosagem , Índice de Massa Corporal , Colecistectomia , Método Duplo-Cego , Procedimentos Cirúrgicos Eletivos , Feminino , Hérnia Inguinal/cirurgia , Humanos , Laparoscopia , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/prevenção & controle , Piroxicam/administração & dosagem , Placebos , Cuidados Pré-OperatóriosRESUMO
BACKGROUND: Because controversy still continuous to surround use of total thyroidectomy for the management of benign multinodular goiter, the present study aims to prospectively compare the safety and efficacy of total thyroidectomy with subtotal thyroidectomy. METHODS: A total of 200 consecutive patients with benign multinodular goiter were assigned to have either total thyroidectomy (n = 105) or subtotal thyroidectomy (n = 95) based on preoperative evaluation, intraoperative macroscopic findings and nodular dissemination. The patients with no healthy tissue or nodules localized in the dorsal part of the gland, which are usually left during normal subtotal resection, were assigned to the total thyroidectomy group. Demographic details, biochemical findings, indications for operation, operating time, specimen weight, complications and hospital stay were noted. RESULTS: There was no significant difference in the sex, hormonal status or duration of goiter between the two groups (P = 0.74, P = 0.59 and P = 0.59, respectively). The mean operating time was longer (148.52 min +/- 51.10 vs 135.10 min +/- 32.47, P = 0.03), and the mean weight of the specimens was greater (228.40 g +/- 229.91 vs 157.01 g +/- 151.23, P = 0.01) for total rather than subtotal thyroidectomy. Either temporary recurrent laryngeal nerve (RLN) palsy or hypoparathyroidism occurred in 10 (9.3%) or 12 (11.4%) of the patients undergoing total compared with six (6.3%) or nine (9.5%) of the patients undergoing subtotal thyroidectomy (P = 0.40 and P = 0.65, respectively). Either permanent RLN palsy or hypoparathyroidism was observed in one patient undergoing total thyroidectomy (P = 0.34 for each comparison). The mean hospital stay was longer in the total thyroidectomy group (2.24 days +/- 1.18 vs 1.89 days +/- 0.72 for subtotal thyroidectomy, P = 0.01). CONCLUSIONS: The present study shows that total thyroidectomy can be performed without increasing risk of complication, and it is an acceptable alternative for benign multinodular goiter, especially in endemic regions, where patients present with a huge multinodular goiter.
Assuntos
Bócio Nodular/cirurgia , Tireoidectomia , Adulto , Estudos de Casos e Controles , Feminino , Bócio Nodular/epidemiologia , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Estudos Prospectivos , Tireoidectomia/métodos , Fatores de Tempo , Turquia/epidemiologiaRESUMO
The aim of this study was to compare laparoscopic totally extraperitoneal approach (TEP) repair with tension-free open mesh repair in inguinal hernia. One hundred thirty-four patients were allocated randomly to undergo TEP repair (n = 67) or open mesh repair (n = 67). Operative and postoperative outcomes were determined. The mean of operating time (49.67 +/- 14.11 vs. 56.64 +/- 12.32; P = 0.001), visual analog scale score (2.73 +/- 1.69 vs. 4.61 +/- 1.77; P = 0.001), hospital stay (1.8 +/- 0.7 vs. 2.7 +/- 1.6; P = 0.001), and duration of recovery (10.8 +/- 7.4 vs. 15.2 +/- 8.5; P = 0.001) was significantly less for TEP repair when compared with open mesh repair. The incidence of complications (13.4% vs. 16.4%; P = 0.631) and recurrence (2.9% vs. 5.9%; P = 0.407) was approximately equal in each group. Our results showed that laparoscopic TEP repair is superior to open mesh repair.
Assuntos
Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Hérnia Inguinal/cirurgia , Laparoscopia/efeitos adversos , Avaliação de Resultados em Cuidados de Saúde , Dor Pós-Operatória/etiologia , Peritônio/cirurgia , Telas Cirúrgicas/efeitos adversos , Adolescente , Adulto , Idoso , Analgésicos/administração & dosagem , Analgésicos/uso terapêutico , Relação Dose-Resposta a Droga , Feminino , Hérnia Inguinal/patologia , Hérnia Inguinal/fisiopatologia , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Medição da Dor , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/patologia , Peritônio/patologia , Peritônio/fisiopatologia , Estudos Prospectivos , Recuperação de Função Fisiológica/fisiologia , Recidiva , Fatores de TempoAssuntos
Obstrução Intestinal/cirurgia , Intestino Delgado/cirurgia , Peritonite/cirurgia , Diagnóstico Diferencial , Humanos , Obstrução Intestinal/diagnóstico , Obstrução Intestinal/etiologia , Intestino Delgado/patologia , Masculino , Pessoa de Meia-Idade , Peritonite/complicações , Peritonite/diagnósticoRESUMO
PURPOSE: This study was designed to investigate the effect of octreotide on side effects of immediate usage of 5-fluorouracil after colonic anastomosis. METHODS: Forty male Wistar rats were randomly assigned into four groups and underwent standardized left colonic anastomosis. The rats served as control or received intraperitoneal 5-fluorouracil (20 mg/kg daily), subcutaneous octreotide (20 mug/kg daily), or both. Diarrhea and wound complications were noted during the experiment. The colonic anastomoses were assessed for healing on postoperative Day 7 by determining the anastomotic bursting pressure, performing histologic examination, and measuring the tissue hydroxyproline content, serum malondialdehyde, and nitric oxide levels. Intraperitoneal adhesions and anastomotic leakage were also noted. RESULTS: No statistical significant difference was found between the control and octreotide groups for each of the parameters measured. Immediate 5-fluorouracil use resulted with higher adhesion score (P = 0.002), significant depression in anastomotic bursting pressure (P = 0.0001), histopathologic score (P = 0.0001), hydroxyproline content (P = 0.0001), and increasing nitric oxide (P = 0.0001) and malondialdehyde levels (P = 0.0001) compared with the control group. Diarrhea was seen in 80 percent of the 5-fluorouracil group but in neither the control nor octreotide groups (P = 0.0001 for each comparison). However, all these parameters were ameliorated by use of concomitant octreotide and 5-fluorouracil (P = 0.019, P = 0.023, P = 0.0001, P = 0.006, P = 0.0001, and P = 0.013, respectively). In addition, diarrhea was found to be prevented (P = 0.0001). CONCLUSIONS: The results of this study showed that concomitant octreotide use might prevent the side effects of 5-fluorouracil, such as diarrhea, postoperative adhesion, and delaying the anastomotic healing parameters. In addition, it might reduce tissue damage and inflammation.
Assuntos
Anastomose Cirúrgica , Colo/cirurgia , Fluoruracila/efeitos adversos , Octreotida/farmacologia , Análise de Variância , Animais , Fluoruracila/administração & dosagem , Hidroxiprolina/metabolismo , Peroxidação de Lipídeos , Masculino , Óxido Nítrico/metabolismo , Octreotida/administração & dosagem , Pressão , Distribuição Aleatória , Ratos , Ratos Wistar , Estatísticas não Paramétricas , Resultado do TratamentoRESUMO
BACKGROUND: We aimed to investigate the potential protective effect of remote ischemic preconditioning (IPC) on delayed colonic anastomotic healing induced by remote ischemia and reperfusion (I/R) injury. MATERIALS AND METHODS: Forty male Wistar rats were randomly assigned into four groups, each consisting of 10 rats: the control group (C), the remote I/R group [I/R, 40 min of superior mesenteric artery (SMA) occlusion], the preconditioned I/R group (IPC, two cycles of 5 min temporary occlusion of SMA before an ischemic insult of 40 min), and the preconditioned group (PC, two cycles of 5 min temporary occlusion of SMA). Colonic anastomosis was performed immediately after the ischemic insult. Anastomotic healing was assessed on postoperative day 7 by determining anastomotic bursting pressure (ABP), tissue hydroxyproline content, histopathological examination, malondialdehyde (MDA), and nitric oxide levels. RESULTS: Remote I/R injury resulted with significant impairment in anastomotic healing in terms of mean ABP (P = 0.004), hydroxyproline content (P = 0.002), histopathological healing score (P = 0.001), nitric oxide level (P = 0.010), and MDA levels (P = 0.0001) when compared with the control group, but remote IPC did not improve all above mentioned parameters (P = NS for all), except MDA level (P = 0.011) when compared with I/R group. PC alone impaired the ABP (P = 0.0001), but it did not significantly change the other parameters measured (P = NS). CONCLUSIONS: The results of this study showed that remote IPC did not prevent I/R-induced delaying in colonic anastomotic healing.
Assuntos
Anastomose Cirúrgica , Colo/cirurgia , Isquemia/terapia , Precondicionamento Isquêmico/métodos , Cicatrização , Animais , Arteriopatias Oclusivas/complicações , Colo/irrigação sanguínea , Colo/metabolismo , Hidroxiprolina/metabolismo , Isquemia/metabolismo , Isquemia/patologia , Masculino , Malondialdeído/metabolismo , Artéria Mesentérica Superior , Óxido Nítrico/metabolismo , Complicações Pós-Operatórias/prevenção & controle , Pressão , Ratos , Ratos WistarRESUMO
Wegener's granulomatosis is a disease characterized by a necrotizing vasculitis and granulomatous inflammation. The localized form involves the upper and/or lower respiratory tracts while in the common generalized form there is a widespread necrotizing vasculitis and renal involvement. Although gastrointestinal involvement which has been detected at necropsy in 24% of the cases is an uncommon finding, it might cause severe complications. We report a patient with clinical Wegener's granulomatosis who subsequently developed gastrointestinal perforation. Gastrointestinal perforation was treated with surgical resection and the patient survived under the treatment of cyclophosphamide and prednisolone with no further gastrointestinal complications. The present case indicates that the gastrointestinal complications might be considered in natural history of Wegener's granulomatosis.
Assuntos
Granulomatose com Poliangiite/patologia , Perfuração Intestinal/etiologia , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: We aimed to investigate the effect of N-acetylcysteine (NAC) on pulmonary lipid peroxidation and tissue damage in experimental obstructive jaundice (OJ) stimulated by lipopolysaccharide (LPS) in this study. MATERIALS AND METHODS: We randomized 40 rats into five groups. Group A: Sham (n = 8); group B: OJ (n = 8); group C: OJ + lipopolysaccharide (LPS; n = 8); group D: OJ + NAC + LPS (n = 8); group E: OJ + LPS + NAC (n = 8). OJ was performed by common bile duct ligation and division in all groups except the sham group. At the fifth day, the rats were jaundiced. At the fifth day of OJ, LPS was injected 10 mg/kg intraperitoneally to the rats and at the tenth day, the rats were sacrificed in group C. In group D; at the fifth day of OJ, NAC was started 100 mg/kg subcutaneously and the same dose NAC injection repeated every day for 5 days. At the tenth day of OJ, LPS was injected 10 mg/kg intraperitoneally to the rats and then after 6 h they were sacrificed. In group E; 10 mg/kg LPS was administered intraperitoneally at fifth day of OJ and after then NAC was started 100 mg/kg subcutaneously and the same dose NAC injection repeated every day for 5 days and at the tenth day, the rats were sacrificed. Tissue samples were harvested through a midline incision, and lungs were resected and examined histopathologically and immunohistochemically for tissue damage scoring. The blood was taken by cardiac puncture and malondialdehyde (MDA), myeloperoxidase (MPO), and levels of total antioxidant status were detected with biochemical methods to evaluate lung tissue damage. RESULTS: Increase in lung and serum MDA and MPO levels, as well as decrease in total antioxidant status, were observed in groups B and C when compared with the sham group (P = 0.0001, for each comparison). Furthermore, the lung tissue damage was observed in the same groups by histopathological examination when compared with sham group. There was significant decrease at serum and lung MPO and MDA levels after the NAC application in groups D and E, when compared with group C (P = 0.0001, for each comparison). Antioxidant status in groups D and E were increased in the presence of NAC (P = 0.0001, for each comparison). Lung histology was prevented relatively in group D when compared with groups B and C. CONCLUSION: Results of the study indicate that NAC has protective effect on pulmonary lipid peroxidation and tissue damage before and after LPS administration.
Assuntos
Acetilcisteína/farmacologia , Icterícia Obstrutiva/metabolismo , Icterícia Obstrutiva/patologia , Peroxidação de Lipídeos/efeitos dos fármacos , Pulmão/metabolismo , Pulmão/patologia , Acetilcisteína/administração & dosagem , Animais , Antioxidantes/análise , Ducto Colédoco/cirurgia , Modelos Animais de Doenças , Injeções Intraperitoneais , Icterícia Obstrutiva/etiologia , Ligadura , Lipopolissacarídeos/administração & dosagem , Masculino , Malondialdeído/análise , Peroxidase/análise , Peroxidase/sangue , Ratos , Ratos WistarRESUMO
PURPOSE: We conducted a prospective randomized controlled study to evaluate the effect of micronized flavonoid fractions (MFF) on pain after hemorrhoidectomy. METHODS: The subjects were 112 consecutive patients randomly assigned either to receive MFF (group 1) for 1 week or not to receive MFF, as a control (group 2), after hemorrhoidectomy, The severity of pain and the number of intramuscular analgesic injections required were recorded for the first 3 days, then 1 week after hemorrhoidectomy. The number of days that intramuscular analgesic injections were required, hospital stay, and patient satisfaction were also assessed. RESULTS: On postoperative day (POD) 1, there were no significant differences between the parameters of the two groups, but on PODs 2 and 3, both the pain score ( P = 0.033 and P = 0.011, respectively) and the number of patients who required intramuscular analgesic injections were significantly less in group 1 ( P = 0.022 and P = 0.007, respectively). Moreover, the hospital stay was shorter and patient satisfaction was superior in group 1 ( P = 0.001 and P = 0.001, respectively). After 1 week, the pain score and number of intramuscular analgesic injections given were significantly less in group 1 ( P = 0.001 and P = 0.021). CONCLUSION: Using MFF after hemorrhoidectomy reduced the severity of pain and intramuscular analgesic requirement.