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Z Máthé

Publications and source records attributed to Z Máthé.

18 recordsLinked to original sources
PubMed2005

Improving results of renal transplantation with the use of elderly donors: the Budapest experience.

The use of elderly donors has become a necessity with the increasing demand for deceased donor organs resulting in transplant centers worldwide expanding their donor criteria. We, therefore, thought it appropriate to review our experience using elderly (>60 years) brain-dead donors for kidney transplantation. We investigated the influence of donor parameters on early graft function and survival. A retrospective comparative analysis of three periods was performed: 1994 to 1998 (P1) n = 40; 1999 to 2000 (P2) n = 28; and 2001 to 2002 (P3) with n = 31 donors. Mean donor age in each period was 63.4 +/- 3.3, 64.5 +/- 3.4, and 63.8 +/- 2.7 years; mean diuresis was 473 +/- 450, 307 +/- 316, and 276 +/- 185 mL/hour; and the need for vasopressors during donor management was 81%, 85%, and 70% respectively. The number of kidney recipients was 59, 30, and 37, mean age was 49 +/- 13, 53 +/- 11 and 54 +/- 8 years, the recipient ratio of patients >60 years was 17%, 33%, and 27% respectively, and no differences among the groups in the HLA mismatch. Primary nonfunction occurred in 8.5%, 0%, and 2.8%; acute rejection ratio at 1 year was 35%, 36%, and 32%, the mean serum creatinine at 12 months was 183.7 +/- 66.0, 157.8 +/- 41.2 and 160.7 +/- 46.5 mumol/L. The 1-year graft survival was 71.2%, 91.0% and 92.0% and the 1-year patient survival 88.2%, 96.6%, and 97.2%, respectively, for periods 1, 2, and 3. There has been a considerable improvement in the 1-year graft and patient survivals. With careful donor and recipient evaluation, individualized immunosuppression, and age matching the results of renal transplantation from elderly deceased donors can be comparable to the results of the "optimal" deceased donor kidney transplantation.

Adolescent↗
PubMed2004

Successful islet after kidney transplantations in a distance over 1000 kilometres: Preliminary results of the Budapest-Geneva collaboration.

To overcome critical islet processing and to ensure patient safety and quality care, we have established an international collaboration between two geographically distant transplant centers for islet transplantation. Four pancreata were harvested and immediately preserved by the two-layer method (oxygenated perfluorocarbon+University of Wisconsin) and subsequently transported for the automated method isolation to Geneva. After purification, the islets were cultured overnight and transported the next day back to Budapest. Three consecutive kidney transplant patients with type 1 diabetes mellitus underwent islet transplantation via percutaneous transhepatic portal embolization using the bag-method. The immunosuppression consisted of daclizumab, sirolimus, and low-dose tacrolimus. Mean donor age was 43.7 years, mean body mass index: 26.5. The islet isolation process began within 8 hours from the donor aorta cross-clamp in all cases. The isolation success rate was 80% (4 of 5). In Budapest, the islets were assessed for viability. No complications occurred during the transplantation, and the portal pressure remained within the normal range. The first patient received 12,000 IU/BW from two donors and the insulin requirement decreased from 40 U/d to 10 U/d. The second patient received 7200 IU/BW from a single donor and became immediately insulin free. The third patient was given 7100 IU/BW; the insulin requirement decreased from 39 U/d to 14 U/d. Posttransplant follow-up for the three patients are 7 months, 4 months, and 2 weeks, respectively. All patients achieved metabolic stability. These preliminary results demonstrate the feasibility of an international collaborative islet transplantation program at a distance over 1000 km.

Adult↗
PubMed1998

Attitudes of donors towards organ transplantation in living related kidney transplantations.

The demand for transplantation exceeds the availability of cadaveric organs, which is why the importance of living, related kidney transplantation is increasing. In our study we wanted to evaluate the experiences of living related donors (LRD). Between 1973 and 1996, 1325 kidney transplantations were performed at our Department. Of these 1247 were from cadaver donors while 78 were from LRD. We contacted each living donor by post. We carried out a physical examination, laboratory tests, ultrasound and isotope investigations and they were interviewed and completed a questionnaire. Thirty previous kidney donors came to our Department who were all blood relatives of the recipients. In the recipient group, 16 still have a functioning kidney, the average time since transplantation being 8.92 years. The longest kidney survival time is 18 years. All the donors willingly donated their kidney, none was worried about their own health and their only concern was whether the kidney would function or not. Regarding general attitudes towards living related organ transplantation, all were in favour of blood relative donor transplantation and also husband/wife transplantation. Opinions regarding non-related transplantation were more mixed; 63.3% would have given their kidneys to a friend, only 46.6% to a stranger. Almost two-thirds (63.3%) of donors were not in favour of selling and buying organs but, controversially, they would have bought an organ had one been available. All agreed that the donation did not change their general health. In conclusion, the donors of living, related kidney transplantation all agreed that it was a good thing to donate; All confirmed they would go through the same procedure again in order to help. Apart from one person, who emphasised that he is agnostic, all belonged to a Christian religion.

Adolescent↗
PubMed1997

Our preliminary results in application of Stoppa technique for recurrent groin hernia.

In 1994 we have started the Stoppa technique which was only used for the recurrent groin hernia repair, when Mersilene mesh was implanted in preperitoneal position from a lower midline incision. From March, 1994 to March, 1996 seventeen Stoppa procedures were performed in our department (14 men, 3 women, mean age of 66 years). Type of hernias: 13 unilaterale, 3 bilaterale recurrent groin hernias and 1 primary bilaterale groin hernia combined with a lower midline incisional hernia. Operations were performed by 7 surgeons. The mean time of the surgery was 85 min. (35-165). The mean postoperative stay in the hospital was 9 days (7-19). The Stoppa technique could be performed in all patients. Serious early postoperative complications didn't occur. The two late recurrences were observed amongst the first five patients. All implanted mesh were well tolerated by the patients. Author believe, this procedure has some advantages: the site of the incision is located in a new place from where the dissection is easier than in the previous incision, the stich fistulas from the previous operation can be avoided, furthermore this method could be applicated for combined hernias located in the lower part of abdomen and it is cheaper than the laparoscopic hernioplasty.

Aged↗
PubMed1996

[Experience gained from the organization of the first group of patients who benefited from liver transplantation].

The authors report in this ciency in the majority of the cases was alcohol abuse or article about their experiences, how could they select a small group of patients awaiting liver transplantation since September 1994. The cause of the liver insuffiHCV infection. During 37 weeks 3 liver transplantations were performed and 5 patients died on the waiting list. (15,6% of the patients on the waiting list.)

Adult↗
PubMed1996

[Availability of livers from cadaver donors in Hungary].

The availability of cadaver livers for transplantation have been studied based on data recorded prospectively by authors. Between January 1, 1995 and August 31, 1995, 98 cadaver kidney donors were accepted in Hungary. Using well established selection criteria 52 of them could have been suitable for liver donation. Steatosis or cirrhosis of the donor livers have been considered most frequent causes of unsuitability for transplantation. Based on these data 70-75 cadaver livers could be transplanted yearly in Hungary that's enough to start a transplant program. The treatment of acute hepatic failure with transplantation seems to be uncertain because of unequal time and blood group distribution of donors. There are just few available cadaver livers for children therefore transplantation of reduced sized liver is needed.

Blood Group Incompatibility↗
PubMed1996

[Transfusion problems in liver transplantation].

Requirement of blood supplementation is especially high in liver transplantation. Authors demonstrate the quantity and quality of blood and blood preparates used in the Transplantation and Surgical Department in Budapest during liver transplantation. Praxis of transfusion and the mode in the sustain of coagulation are shown. Dates in Hungary are compared to those in abroad. They conclude that these dates are comparable to each others.

Blood Banks↗
PubMed1982

Isolated granulomatous disease of the stomach.

A case of isolated granulomatous gastritis observed in a 66-year-old female patient is reported. The gastric granulomatosis gave rise to pyloric stenosis, and at the first explorative laparotomy the change was misdiagnosed for an inoperable tumour. Gastroscopy then revealed the presence of a peptic ulcer, which healed completely on drug therapy. At the second surgical intervention undertaken on account of a relapse after 2 years, Billroth II type resection of the stomach led to complete recovery; the patient has been free from complaints ever since. It is suggested that in addition to peptic ulcer and tumour, isolated gastric granulomatosis should be taken into consideration as the underlying mechanism of pyloric stenosis.

Aged↗
PubMed1978

[Gastrointestinal bleeding and emergency endoscopy in portal hypertension (author's transl)].

Portal hypertension is found in about one quarter of the cases with upper gastrointestinal bleeding. 57 patients with portal hypertension underwent endoscopy for gastrointestinal haemorrhage. Despite visible varices in all cases varice rupture underlies only 50% of the bleeding episodes. Conditions other than rupture were found to bleed in 50%. Superficial mucosal erosions, which escape radiological detection, were the most frequent other bleeding sources.

Adult↗
PubMed1976

[Emergency endoscopy in acute upper gastrointestinal bleeding (author's transl)].

A report is given of 135 panendoscopic examinations in acute upper gastrointestinal bleeding. The importance of endoscopy is underlined by the high incidence of erosions and potential bleeding sources, since these lesions are not detected by radiological examination. Nor is it possible by means of X-rays to distinguish actual sources of haemorrhage from potential sources. The case history is only of limited value in pin-pointing the source of the haemorrhage. Endoscopy yields the best results in the diagnosis of the cause of gastrointestinal bleeding.

Duodenal Diseases↗