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1.
Rozhl Chir ; 102(5): 204-207, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37527947

RESUMO

INTRODUCTION: This case report describes surgical treatment of chronic mesenteric ischemia in a polymorbid patient with the history of an aorto-bifemoral bypass implant. CASE REPORT: The patient suffered from chronic occlusions of the mesenteric arteries. He experienced postprandial pain and significant weight loss. Endovascular repair of the occlusions failed. Open single retrograde bypass from the left branch of the aorto-bifemoral graft to the superior mesenteric artery was implanted successfully. CONCLUSION: The discussion briefly mentions current trends in the treatment of chronic mesenteric ischemia. Despite the development of interventional radiology, surgical treatment remains a relevant alternative for the management of chronic mesenteric ischemia.


Assuntos
Isquemia Mesentérica , Oclusão Vascular Mesentérica , Masculino , Humanos , Isquemia Mesentérica/cirurgia , Resultado do Tratamento , Oclusão Vascular Mesentérica/cirurgia , Procedimentos Cirúrgicos Vasculares , Intestinos , Isquemia/etiologia , Isquemia/cirurgia , Doença Crônica
2.
Rozhl Chir ; 102(4): 154-158, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37344195

RESUMO

INTRODUCTION: Retroperitoneal tumours (RTs) in adults are a rare heterogeneous group of neoplasms arising from the retroperitoneal space. RTs'clinical manifestations are nonspecific and depend on their anatomical positioning and relation with bordering structures. Our study aimed to retrospectively evaluate our patients' diagnosis, length of hospital stay, disease-free period and postoperative metastasis occurrence. METHODS: From 2011 to 2019, fifteen suspected RT resections were performed at our centre. Retrospective analysis of patients' hospital stays, follow-up, histological and immunological tumour profile, and metastasis occurrence/ re-occurrence was performed. RESULT: All of the 15 (100%) patients were males. The average age of our patients was 44 years (SD ± 11.2 years), average hospital stay was 7.4 days (SD±3.4 days) (Tab.1). All resected tumours underwent histological and immunological evaluation. Based on histological examination of the resected tumours, nonseminomatous germ cell tumours were present in 12 (80%) patients - including teratoma in 4 (26.6%) patients, seminoma in 2 (13.3%) patients, and malignant B-cell lymphoma in 1 (6.6%) patient. The average patient follow-up was 42.7 months (SD±31.4.9 months). Complete remission after the surgery was achieved in 11 (76.9%) patients, and 2 (13.3%) patients were lost in follow-up. CONCLUSION: RT is a rare heterogeneous group of neoplasm. The patient's prognosis dramatically depends on the type of tumour, metastasis occurrence and re-occurrence, and the surgeons' ability to resect the tumour completely.


Assuntos
Neoplasias Embrionárias de Células Germinativas , Neoplasias Retroperitoneais , Neoplasias Testiculares , Adulto , Masculino , Humanos , Feminino , Neoplasias Retroperitoneais/cirurgia , Neoplasias Retroperitoneais/patologia , Neoplasias Retroperitoneais/secundário , Espaço Retroperitoneal/patologia , Estudos Retrospectivos , Neoplasias Testiculares/patologia , Neoplasias Testiculares/cirurgia
3.
Rozhl Chir ; 102(2): 75-79, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37185029

RESUMO

Replacing an infected vascular prosthetic conduit with an allograft is a possible solution of this complication given the low recurrence of infection. It is most commonly utilized for cases where the use of autologous tissue is not an option. We present the case of a 70-year-old patient who had undergone repeated vascular reconstructions in the right lower limb. He was admitted to our department due to a progressively growing mass in the right groin and subsequently placed on the waiting list for a fresh allograft. The patient had the infected false aneurysm and prosthetic material of the femoral bifurcation replaced with an arterial allograft. The previous femoral popliteal autovenous bypass graft was reimplanted into the allograft. There were signs of sepsis during the operation; however, the blood culture was negative. Cultures from neither the wound nor the drain revealed the presence of any bacteria. The patient was discharged on the seventh post-operative day with prophylactic antibiotics. An early followup confirmed that there were no signs of recurrent infection and that the reconstruction remained patent. Seven and half months after the surgery, the femoral popliteal bypass graft became occluded and a conservative approach was chosen. A small thrombosed false aneurysm of the graft was revealed two years after the surgery due to transient non-compliance of the patient to immunosuppression therapy. It was treated conservatively. Two and a half years after the surgery, the allograft still remains open and the limb is preserved.


Assuntos
Falso Aneurisma , Implante de Prótese Vascular , Infecções Relacionadas à Prótese , Masculino , Humanos , Idoso , Falso Aneurisma/cirurgia , Falso Aneurisma/complicações , Prótese Vascular/efeitos adversos , Infecções Relacionadas à Prótese/cirurgia , Infecções Relacionadas à Prótese/microbiologia , Artérias/transplante , Aloenxertos/cirurgia , Artéria Femoral/cirurgia , Resultado do Tratamento , Estudos Retrospectivos , Reoperação/efeitos adversos
4.
Rozhl Chir ; 102(11): 416-421, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38290817

RESUMO

INTRODUCTION: Minimally-invasive surgical methods have been becoming ever more common also in the segment of pancreatic surgery. The aim of this paper was to analyze the current state of minimally-invasive surgery in the Czech Republic and the justification and potential of implementing such procedures. METHODS: Analysis of high volume centers using healthcare providers´ and payers´ data. RESULTS: Thirteen pancreatic surgical centers meet the proposed criteria for being called a high volume center - a center of highly specialized care in pancreatic surgery based on the annual number of at least 17 major resections of the pancreas. According to data from healthcare payers, laparoscopy was used in 0.6%-65.7% of procedures in individual centers. However, these are not resection procedures. The centers themselves report a significantly smaller number of minimally-invasive pancreatic resection procedures. The actual numbers of minimally-invasive resection procedures in the current system are practically impossible to verify. The potential for implementing minimally-invasive pancreatic surgery in the Czech Republic can be estimated based on the identification of candidate patients. CONCLUSION: Due to the fragmentation of this operative segment, its costs and small numbers of patients suitable for minimally-invasive pancreatic surgery even among high volume centers, the implementation rate of these methods is very slow. The need to centralize this segment of care appears to be very urgent from all points of view.


Assuntos
Laparoscopia , Neoplasias Pancreáticas , Procedimentos Cirúrgicos Robóticos , Humanos , República Tcheca , Neoplasias Pancreáticas/cirurgia , Pâncreas , Pancreatectomia/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Laparoscopia/métodos , Procedimentos Cirúrgicos Robóticos/métodos
5.
Physiol Res ; 71(6): 859-868, 2022 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-36426890

RESUMO

The pro-inflammatory status of adipose tissue (AT) has been found to be related to reverse cholesterol transport (RCT) from peritoneal macrophages. However, this finding was made in experimental models using induced peritonitis and isolated peritoneal macrophages of animals. This experimental relationship is in agreement with RCT changes in man in two extreme situations, sepsis or cardiovascular complications. Given the above, we sought to test RTC in relationship to macrophage polarization in the visceral AT (VAT) of living kidney donors (LKDs) and the effect of conditioned media obtained from their AT. The influence of ATCM on CE capacity was first assessed in an experiment where standard plasma was used as cholesterol acceptor from [14C] cholesterol labeled THP-1. Conditioned media as a product of LKDs' incubated AT showed no effect on CE. Likewise, we did not find any effect of individual plasma of LKDs on CE when individual plasma of LKDs were used as acceptors. On the other hand, we documented an effect of LKDs' adipose cell size on CE. Our results indicate that the pro-inflammatory status of human AT is not likely induced by disrupted RCT but might be influenced by the metabolic status of LKDs' adipose tissue.


Assuntos
Tecido Adiposo , Colesterol , Animais , Humanos , Meios de Cultivo Condicionados/metabolismo , Meios de Cultivo Condicionados/farmacologia , Tecido Adiposo/metabolismo , Colesterol/metabolismo , Macrófagos/metabolismo
6.
Rozhl Chir ; 101(7): 337-341, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36075697

RESUMO

INTRODUCTION: Aggressive fibromatosis, also known as desmoid tumour (DT), is a locally invasive soft tissue malignancy originating from fascial planes, connective tissue, and musculoaponeurotic structures of the muscles. The symptoms greatly depend on the location and size of the tumour. CASE REPORT: A 68-year-old male patient without any comorbidities with a large, palpable mass in the abdomen underwent computed tomography (CT) of the abdomen during diagnostic examination in September 2017 in another centre. The CT scan revealed a giant intraperitoneal 30×40cm tumour without signs of infiltrating the surrounding organs and large vessels. The tumour biopsy revealed an aggressive DT. The patient was scheduled for tumour resection. Midline laparotomy was performed in the supine position under general anaesthesia. After gaining access to the abdominal cavity, 8 litres of clear ascites were evacuated. The tumour was not attached to the abdominal wall. Large omentum was freed from the DT. The perioperative finding confirmed the CT images of DT encapsulation of the medial colic artery, part of the small intestine, and transverse colon. The tumour was resected with part of the mesenteric radix, 30 cm of small intestine, and 2/3 of the transverse colon. After the DT was removed entirely, the small intestine was re-anastomosed end to end. The abdominal cavity and the liver were carefully checked for bleeding. The abdominal cavity was closed in a standard manner. RESULTS: The postoperative hospital stay was uneventful. The patient was discharged on the 7th postoperative day with prophylactic low weight molecular heparin for one month. Currently, we have five months of follow-up with no signs of DT recurrence based on CT examination. The histology of the resected tumour confirmed the diagnosis of a desmoid tumour (aggressive abdominal fibromatosis). CONCLUSION: Desmoid tumours are benign neoplasms with no metastatic potential. However, their treatment is challenging due to their aggressive growth, infiltrative behaviour, and a high tendency to recur.


Assuntos
Parede Abdominal , Fibromatose Agressiva , Parede Abdominal/cirurgia , Idoso , Fibromatose Agressiva/diagnóstico por imagem , Fibromatose Agressiva/cirurgia , Humanos , Laparotomia , Masculino , Mesentério/cirurgia , Tomografia Computadorizada por Raios X
7.
Rozhl Chir ; 101(1): 14-21, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35148612

RESUMO

Pancreatic islets transplantation is an established treatment method for type 1 diabetic patients with the hypoglycemia unawareness syndrome in whom a therapy with modern technologies fails. Islet transplantation is most commonly done using an interventional radiology method: a tissue suspension of pancreatic islets is applied into a branch of the portal vein through a percutaneously installed catheter. Although being minimally invasive unlike pancreas organ transplant, this method is associated with many technical difficulties. Possible complications of the procedure include hemorrhage and portal vein thrombosis. Unlike their natural dispersed localization in exocrine pancreas, isolated pancreatic islets are exposed to hypoxia, toxins and immunosuppressive drugs in the liver parenchyma. Direct contact with the recipients blood causes an instant blood mediated inflammatory reaction (IBMIR) resulting in the death of more than half of the pancreatic islets shortly after their application. Therefore the size of the islet graft is often insufficient and a number of transplanted patients require administration of exogenous insulin. All of these are reasons for seeking an alternative transplantation site with more hospitable conditions for long-term islet survival. Various transplantation sites have been tested in experimental and clinical research. The advantages and disadvantages of some of them are summarized in this paper. Currently, transplantation into the greater omentum seems most promising, which has already been used in clinical practice at several institutions.


Assuntos
Diabetes Mellitus Tipo 1 , Transplante das Ilhotas Pancreáticas , Ilhotas Pancreáticas , Sobrevivência de Enxerto , Humanos , Omento , Pâncreas
8.
Physiol Res ; 71(Suppl 1): S75-S87, 2022 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-36592443

RESUMO

Uterus transplantation (UTx) is a promising treatment option for women who wish to give birth but suffer from absolute uterine factor infertility. This paper presents an interim analysis of a trial focusing on the causes, prevention, diagnosis, and management of graft thrombosis. Our team analyzed 10 cases of UTx (recipients numbered 1 to 10). Early thrombosis developed in 2 of 10 (20 %) recipients, and thrombectomy and temporary viability preservation were achieved in both cases. However, re-thrombosis developed in both cases, and a graft hysterectomy was carried out. In recipient number 2, vascular changes might have contributed to graft thrombosis. The histopathological finding of the explant revealed subintimal excentric fibrosis with focal sclerotic changes. In recipient number 8, thrombosis was facilitated by external compression of the vascular pedicles by the hematoma as well as production of de novo donor-specific antibodies. Thrombosis led to graft loss in both cases despite an attempt at a thrombectomy. Therefore, the focus must be on prevention including a thorough evaluation of the donor candidate. In the postoperative course, perfusion is closely followed-up with an ultrasound, Doppler flow monitoring, and macroscopic evaluation of the cervix. In the event that findings are unclear, a relaparotomy should be promptly indicated. If thrombosis is revealed, a thrombectomy and an attempt to salvage the graft are indicated; however, the role of this strategy is questionable due to the low chance of long-term success. The indication of upfront graft removal and early re-transplantation in the treatment of uterine graft remains debatable.


Assuntos
Trombose , Transplantes , Humanos , Feminino , Útero/transplante , Trombose/etiologia , Trombose/prevenção & controle , Doadores de Tecidos , Fibrose
9.
Physiol Res ; 71(Suppl 1): S89-S97, 2022 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-36592444

RESUMO

Arterial blood to the human uterus is provided by a pair of uterine arteries (UA) and supported by terminal branches of ovarian (OA) and vaginal arteries (VA). Literature reports the existence of ipsilateral and contralateral anastomoses between these arteries and the UA, but data on the prevalence of such anastomoses are discrepant. The aim of this trial is to study whether contralateral and ipsilateral anastomoses exist. We studied nine human uterine specimens, which were obtained from (i) human cadavers (n = 6), (ii) uterine transplant recipients (n = 2), and (iii) one altruistic uterine donor (n = 1). We injected India ink into the graft through the UA of each specimen (n = 8) or OA (n = 1). We semiquantitatively observed and evaluated the extent of the injection on horizontal, vertical, and transmural levels. The dye permeated beyond the midline in 9/9 (100 %) cases. Near-complete/complete permeation to the contralateral side was observed in 6/9 (66 %) cases. The dye permeated ipsilaterally throughout all uterine levels in 8/8 cases (100 %) of UA injection. The entire wall of the myometrium was permeated in 2/9 (22 %) cases. In 7/9 (78 %) cases, the wall of the myometrium was permeated less than halfway through. In conclusion, the preliminary results of this study prove the existence of ipsilateral and contralateral anastomoses. Complete transmural injection was observed in only 22 % of cases; however, this finding does not provide information about the functional capacity of these anastomoses. More data and studies are necessary to make definitive conclusions.


Assuntos
Ovário , Útero , Feminino , Humanos , Útero/irrigação sanguínea , Artérias , Pelve , Fluxo Sanguíneo Regional
10.
Rozhl Chir ; 100(9): 445-451, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34649454

RESUMO

INTRODUCTION: Thrombolysis has been suggested as a feasible method to treat arterial renal transplant thrombosis under conditions of short duration of ischemia. Data on maximal duration of ischemia that are still feasible to treat are scarce. METHODS: We retrospectively analysed our experience involving three attempts to utilize thrombolysis to treat transplant renal artery thrombosis. We searched through literature on PubMed and compared the data we found with our own experience. RESULTS: In case number 1 of our cohort, thrombolysis was initiated 12 hours after the onset of thrombosis and had to be ceased after five hours due to the formation of a haematoma. Perfusion of the graft was restored but it did not regain function, most likely due to long ischemia time. In case number 2, an attempt to use thrombolysis was unsuccessful due to failure to cross the graft artery occlusion with a guidewire. Thrombosis was most likely caused by chronic rejection of the graft. In case number 3, thrombolysis restored arterial patency but, due to an onset of ischemia, which lasted 2 to 3 days, did not lead to restoration of graft function. The prolonged ischemia period in case three occurred, at least in part, due to failure to perform an ultrasound scan when the patient was first admitted. CONCLUSION: We can confirm that thrombolysis for transplant renal artery thrombosis seems to be feasible only when the condition has a short duration. In the event of sudden deterioration of graft function, the absence of perfusion must always be ruled out by ultrasound scan.


Assuntos
Artéria Renal , Trombose , Humanos , Estudos Retrospectivos , Terapia Trombolítica , Trombose/diagnóstico por imagem , Trombose/tratamento farmacológico , Trombose/etiologia , Resultado do Tratamento
11.
Rozhl Chir ; 100(7): 348-352, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34465111

RESUMO

INTRODUCTION: Mesh migration is one of the least common complications that arise after inguinal hernia repair with a mesh. Only small case series have been reported, and an understanding of this issue is limited due to a lack of data. Most of the cases were treated surgically. In this paper, we wish to present the potential of treating this condition using endoscopic techniques. CASE REPORT: A male patient underwent transabdominal preperitoneal repair of a primary inguinal hernia in 1999. In 2003, the patient required the same procedure for a recurrent inguinal hernia. Twenty years after the primary hernia repair, the patient had a positive faecal occult blood test but was completely asymptomatic. A colonoscopy revealed mesh migration into the sigmoid colon. Despite multiple attempts to remove the mesh endoscopically, endoscopic treatment was unsuccessful. The migrated mesh was surgically removed and obligatory resection of the sigmoid colon was carried out. Apart from wound infection (Clavien-Dindo IIIb), the postoperative course was uneventful. CONCLUSION: In our case, the mesh that had penetrated the colon could not be removed endoscopically. Despite our experience, it is advisable to attempt endoscopic removal of mesh that has migrated into a hollow intra-abdominal viscus.


Assuntos
Hérnia Inguinal , Laparoscopia , Colo Sigmoide , Hérnia Inguinal/cirurgia , Herniorrafia/efeitos adversos , Humanos , Masculino , Complicações Pós-Operatórias/cirurgia , Telas Cirúrgicas/efeitos adversos
12.
Rozhl Chir ; 99(9): 391-396, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33242967

RESUMO

INTRODUCTION: Liver transplantation is established as a lifesaving procedure for patients with acute and chronic liver failure, as well as certain selected malignancies. Due to a continuing organ shortage and ever-growing patient waiting lists, donation after cardiac death (DCD) is becoming more frequently utilized in order to close the gap between “supply and demand”. METHODS: A retrospective analysis of DCD and subsequent liver transplantations was performed. RESULTS: From May 2016 to September 2019, a total of 9 DCD liver transplantations were performed in our institution. All cases except one were primary liver transplantations. The recipients comprised 5 (56%) males and 4 (44%) females. The mean DCD donor age was 41±12 (22-57) years, with ventilation duration of 7±1 days and warm ischemia time 19±3 minutes. The average recipient age was 51±22 (4-73) years, with an average cold ischemia 3h:59m±27m and manipulation time of 23±5 minutes. Periprocedural mortality was 1 (11%). Hepatitis C recurrence was documented in 1 (11%) patient. The mean follow-up time was 19±13 (7-37) months. Until now, we have not observed any signs of ischemic cholangiopathy. CONCLUSION: DCD liver transplantation allows us to enlarge the pool of potential liver grafts, thus decreasing the time spent on the liver recipient waiting list. This paper documents the first series of DCD liver transplantations in the Czech Republic.


Assuntos
Transplante de Fígado , Obtenção de Tecidos e Órgãos , República Tcheca , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Estudos Retrospectivos , Doadores de Tecidos
13.
Rozhl Chir ; 99(9): 403-407, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33242969

RESUMO

INTRODUCTION: Bile duct injuries (BDIs) that occur after a laparoscopic cholecystectomy (LC) are among the most serious iatrogenic injuries and have high morbidity and mortality. They significantly impact the quality of life of the patient. They are one of the most common causes of benign biliary strictures, which can result in serious complications such as recurrent cholangitis or secondary biliary cirrhosis. Although LC is a common operation today, the incidence of BDIs associated with LC is twice that of BDIs resulting from open cholecystectomies. CASE REPORT: In this paper, we present a case report of a patient after LC with the Class III-D injury according to the Stewart-Way classification. The injury was a result of a misleading description from a preoperative ultrasonography and a subsequent misunderstanding of the anatomical conditions of a patient with congenital gallbladder agenesis. The BDI was recognised first day after surgery. Thanks to a prompt transfer to our centre the patient was in a good condition. Biliary reconstruction could be done because there was no serious inflammation or biliary peritonitis at the time of reoperation. Due to the extent of the injury a Roux-en-Y tri-hepaticojejunostomy combined with external transhepatic biliary drains was performed. CONCLUSION: Iatrogenic BDI after a LC is a rare, but potentially life-threatening complication. The main risk factor is the presence of anatomical variants of the biliary tract. Early recognition and treatment in a department with adequately experienced hepatobiliary specialists are crucial for a positive outcome. The most frequent surgical treatment is a Roux-en-Y hepaticojejunostomy.


Assuntos
Colecistectomia Laparoscópica , Ductos Biliares/diagnóstico por imagem , Ductos Biliares/cirurgia , Colecistectomia , Colecistectomia Laparoscópica/efeitos adversos , Vesícula Biliar , Humanos , Qualidade de Vida
14.
Physiol Res ; 69(5): 835-845, 2020 11 16.
Artigo em Inglês | MEDLINE | ID: mdl-32901492

RESUMO

Acute liver failure (ALF) is a clinical syndrome with high mortality rate, resulting from widespread hepatocyte damage. Its pathophysiological background is still poorly understood and preclinical studies evaluating pathophysiology and new potential therapeutic measures are needed. The model of ALF induced by administration of thioacetamide (TAA) in Lewis rats is recommended as optimal; however, the limitation of previous studies was that they were performed predominantly in male rats. In view of the growing recognition that sex as a biological variable should be taken into consideration in preclinical research, we examined its role in the development of TAA-induced ALF in Lewis rats. We found that, first, intact male Lewis rats showed lower survival rate than their female counterparts, due to augmented liver injury documented by higher plasma ammonia, and bilirubin levels and alanine aminotransferase activity. Second, in female rats castration did not alter the course of TAA-induced ALF whereas in the male gonadectomy improved the survival rate and attenuated liver injury, reducing it to levels observed in their female counterparts. In conclusion, we found that Lewis rats show a remarkable sexual dimorphism with respect to TAA-induced ALF, and male rats display dramatically poorer prognosis as compared with the females. We showed that testosterone is responsible for the deterioration of the course of TAA-induced ALF in male rats. In most general terms, our findings indicate that in the preclinical studies of the pathophysiology and treatment of ALF (at least of the TAA-induced form) the sex-linked differences should be seriously considered.


Assuntos
Falência Hepática Aguda/induzido quimicamente , Falência Hepática Aguda/metabolismo , Testosterona/metabolismo , Tioacetamida/toxicidade , Animais , Carcinógenos/toxicidade , Modelos Animais de Doenças , Feminino , Falência Hepática Aguda/patologia , Masculino , Ratos , Ratos Endogâmicos Lew , Fatores Sexuais
15.
Physiol Res ; 69(1): 113-126, 2020 02 19.
Artigo em Inglês | MEDLINE | ID: mdl-31852203

RESUMO

Acute liver failure (ALF) is known for extremely high mortality rate, the result of widespread damage of hepatocytes. Orthotopic liver transplantation is the only effective therapy but its application is limited by the scarcity of donor organs. Given the importance in the liver biology of Wnt/beta-catenin signaling pathway, we hypothesized that its stimulation could enhance hepatocyte regeneration and attenuate the course of thioacetamide (TAA)-induced ALF in Lewis rats. Chronic treatment with Wnt agonist was started either immediately after hepatotoxic insult ("early treatment") or when signs of ALF had developed ("late treatment"). Only 23 % of untreated Lewis rats survived till the end of experiment. They showed marked increases in plasma alanine aminotransferase (ALT) activity and bilirubin and ammonia (NH3) levels; plasma albumin decreased significantly. "Early" and "late" Wnt agonist treatment raised the final survival rate to 69 % and 63 %, respectively, and normalized ALT, NH3, bilirubin and albumin levels. In conclusion, the results show that treatment with Wnt agonist attenuates the course of TAA-induced ALF in Lewis rats, both with treatment initiated immediately after hepatotoxic insult and in the phase when ALF has already developed. Thus, the pharmacological stimulation of Wnt/beta-catenin signaling pathway can present a new approach to ALF treatment.


Assuntos
Falência Hepática Aguda/tratamento farmacológico , Fígado/efeitos dos fármacos , Proteínas Wnt/agonistas , Via de Sinalização Wnt/efeitos dos fármacos , beta Catenina/metabolismo , Animais , Avaliação Pré-Clínica de Medicamentos , Fígado/metabolismo , Falência Hepática Aguda/induzido quimicamente , Falência Hepática Aguda/metabolismo , Masculino , Ratos Endogâmicos Lew , Tioacetamida
16.
Rozhl Chir ; 98(7): 268-272, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31398985

RESUMO

INTRODUCTION: The publication of new guidelines in recent years shows that surgical treatment of inguinal hernia remains topical. The main goal is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain. The main purpose of this article is to summarize the latest recommendations in surgical treatment of the groin hernias, especially in the case of strangulation. METHODS: The authors made literature review of all the guidelines published by the hernia societies, including related articles, in the last ten years. RESULTS: The use of the EHS classification system is suggested. In elective operations, mesh repair is recommended. The Lichtenstein technique is the standard in open inguinal hernia repair. Transabdominal preperitoneal and totally extraperitoneal approach have comparable outcomes. Their clear advantages include minimal invasiveness. Mesh repair is recommended also in the case of strangulation, but only in clean and clean-contami-nated operations. A laparoscopic approach should be considered as well. Inter alia, it allows an assessment of bowel viability during the whole procedure. The need of bowel resection is hence lower compared to open surgery. If it is not possible to use the mesh, the Shouldice method is regarded as the best non-mesh repair technique. If there is concern about bowel viability, visualization, either by formal laparoscopy, hernia sac laparoscopy or laparotomy, is recommended. Hernioscopy is a simple and safe procedure that uses the hernia sac for insertion of a port following insufflation and diagnostic examination. It requires less advanced laparoscopic skills than does emergency laparoscopic hernia repair. It can be performed even by surgeons who lack sufficient experience with laparoscopy. CONCLUSION: In elective procedures, the mesh repair is recommended. It is recommended also in the case of strangulation, but not in a contaminated-dirty surgical field. If there is concern about bowel viability, visualization, either by formal laparoscopy, hernia sac laparoscopy or laparotomy, is needed.


Assuntos
Hérnia Inguinal , Laparoscopia , Procedimentos Cirúrgicos Eletivos , Hérnia Inguinal/cirurgia , Herniorrafia , Humanos , Telas Cirúrgicas , Resultado do Tratamento
17.
Case Rep Transplant ; 2019: 2172163, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30963017

RESUMO

INTRODUCTION: A 27-year-old female patient with known tuberous sclerosis complex (TSC), polycystic kidneys with multiple large bilateral angiomyolipomas, and failing renal functions with prehemodialysis values (urea: 19 mmol/L; creatinine: 317 µmol/L; CKD-EPI 0,27) was admitted to our department for pre-renal transplant evaluation. The patient was placed on the transplant waiting list as the living donor did not pass pretransplant workup and was subsequently contraindicated. Patient was placed on the "cadaverous kidney transplant waiting list". METHOD: Computed tomography angiography revealed symptomatic PSA in the right kidney angiomyolipoma (AML). The patient underwent urgent transarterial embolisation of the PSA's feeding vessel in the right kidney AML. Based on the "kidney transplant waiting list" order patient underwent a bilateral nephrectomy combined with transperitoneal renal allotransplantation of a cadaverous kidney graft through midline laparotomy, appendectomy, and cholecystectomy. RESULTS: Postoperative period was complicated by delayed graft function caused by acute tubular necrosis requiring postoperative hemodialysis. The patient was discharged on the 17th postoperative day with a good renal graft function. Patient's follow-up is currently 23 months with good graft function (urea: 9 mmol/L; creatinine: 100 µmol/L). CONCLUSION: Renal transplantation combined with radical nephrectomy provides a definitive treatment for TSC renal manifestations.

18.
Rozhl Chir ; 98(12): 476-480, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31958960

RESUMO

Thanks to an increased number of living-donor kidney transplants the IKEM transplant program offers the possibility of obtaining adipose tissue for scientific purposes from patients with varying degrees of atherosclerosis. Surgery mainly addresses vascular complications of this disease. On the other hand, surgery may also be the reason for the development and acceleration of atherosclerosis - for instance, acceleration of atherosclerosis in the living kidney donor, particularly if, although meeting internationally recognized donation criteria, the donor actually suffers from metabolic syndrome. The effort to refine the examinations of living kidney donors in terms of eliminating the risk of developing atherosclerosis is a long-term project. The aims are to determine the risk factors for living kidney donors and to prevent long-term complications after donation. The paper gives a detailed description of the technique of adipose tissue collection from a living kidney donor and of the experimental model for the research of atherosclerosis.The project has the potential to increase the safety of living kidney donation and to enhance our present knowledge of atherosclerosis development mechanisms.


Assuntos
Tecido Adiposo , Aterosclerose , Transplante de Rim , Doadores Vivos , Obtenção de Tecidos e Órgãos , Humanos , Modelos Teóricos
19.
Transplant Proc ; 50(5): 1305-1309, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29880350

RESUMO

ABO-incompatible (ABOi) kidney transplantation represents a viable tool to increase the donor pool for kidney transplantation, however, increased alloimmune response has been debated. The early outcomes of 25 low-risk ABOi kidney transplant recipients were compared with thoroughly matched 50 ABO-compatible (ABOc) ones. The matching process was based on gender and age of recipients and immunologic parameters, such as panel reactive antibodies, number of human leukocyte antigen mismatches, and transplantation era. Three-month protocol kidney graft biopsy Banff scores and 1-year clinical outcomes were compared. Apart from C4d positivity, no statistically significant differences were found regarding the Banff scores between the two groups. Similarly, microvascular inflammation and tubulointerstitial injury revealed no differences either. The eGFR at 3 months and 1 year was similar in both groups. In conclusion, blood group incompatibility yields no additional microvascular and tubulointerstitial graft injury if desensitization protocol was applied to low-risk kidney transplant recipients.


Assuntos
Sistema ABO de Grupos Sanguíneos/imunologia , Aloenxertos/imunologia , Incompatibilidade de Grupos Sanguíneos/complicações , Rejeição de Enxerto/imunologia , Transplante de Rim/métodos , Vasculite/imunologia , Adulto , Aloenxertos/provisão & distribuição , Biópsia , Incompatibilidade de Grupos Sanguíneos/imunologia , Dessensibilização Imunológica , Feminino , Taxa de Filtração Glomerular , Histocompatibilidade/imunologia , Humanos , Rim/irrigação sanguínea , Rim/imunologia , Masculino , Microvasos , Pessoa de Meia-Idade
20.
Ceska Gynekol ; 83(1): 62-68, 2018.
Artigo em Tcheco | MEDLINE | ID: mdl-29510643

RESUMO

OBJECTIVE: Evaluation of pregnancies and deliveries in women after solid organ transplantations with respect to the maternal and fetal risks. DESIGN: Overview article. SETTING: Department of Obstetrics and Gynaecology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague. METHODS: Literature search using the Web of Science, Ovid, Cochrane, Google Scholar and Medline databases with keywords (transplantation, pregnancy, immunosuppression) and analysis of articles published in impact and reviewed journals from 1958 to 2017. RESULTS: Pregnancy in patients after solid organ transplantions is associated with the higher risk of complications, particularly preeclampsia, and high incidence of comorbidities. Women after transplantation have an increased risk of premature deliveries and low birth weight newborns. The highest risk of complications is documented after lung transplantation. For immunosuppression in pregnancy inhibitors of calcineurin, azathioprine and prednisone are used. CONCLUSION: Pregnancies and deliveries in women after solid organ transplants are in a high risk. With early transplantation, adequate patient health compensation, properly planned pregnancy, adequate immunosuppressive therapy and specialized prenatal and obstetric care, women can give birth to healthy newborns after transplantation.


Assuntos
Transplante de Órgãos , Resultado da Gravidez , Nascimento Prematuro , Parto Obstétrico , Feminino , Humanos , Recém-Nascido de Baixo Peso , Recém-Nascido , Pré-Eclâmpsia , Gravidez , Complicações na Gravidez
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