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Biomedical subjects

Z Pápai

Publications and source records attributed to Z Pápai.

12 recordsLinked to original sources
PubMed2001

Bilateral bronchial stenting and esophageal intubation for advanced bronchial carcinoma with esophageal invasion.

Successive bilateral bronchial stenting (Dumon type) and minimally invasive pull-through esophageal intubation for accompanying malignant bronchial and esophageal involvement was undertaken. External radiation and afterloading brachytherapy for localized endobronchial overgrowth was used. A 13-month survival was achieved using mainly out-patient facilities. During such esophageal intubation, bronchoscopic control is mandatory. Extended complex palliation was obtained using this combined treatment, even in the high-risk stage of advanced tracheobronchial carcinoma with associated esophageal stricture.

Aged↗
PubMed2000

[Results of limb-saving surgery and prognostic factors in patients with osteosarcoma].

Ninety six patients with high-grade osteosarcoma of the extremities were treated between 1986 and 1997 in the authors institution. They were divided into three groups: in group I, all of 75 patients with non-metastatic OS received intensive chemotherapy and underwent surgery. In group II, 9 patients already had metastases at the time of referral. In group III, 12 patients received chemotherapy in delayed or suboptimal form. In group I, local recurrences occurred in 7 per cent (3 patients), metastases in 20 per cent of the patients with limb-saving, whereas these numbers were 3 per cent and 38 per cent in the amputation group. The 5-year disease free survival (DFS) was 72% v 69% in the limb-saving and amputation group, respectively. In groups II and III, 5-year DFS was extremely poor, 10 and 20% only. With univariate analysis, factors having a positive influence on the survival were: tumor volume < 60 cm3, wide or radical surgical margin, distal location of osteosarcoma, cartilagineous ground substance less than 20% and response to chemotherapy. The last 4 variables maintained their significance in the multivariate Cox model as well. Age > 30 showed indirect negative influence on the final outcome (enhanced intolerability to the drugs and less co-operability of the patients etc.). This data confirm the competence of the limb-saving surgery at certain indications beside the amputation.

Adolescent↗
PubMed2000

The efficacy of a combination of etoposide, ifosfamide, and cisplatin in the treatment of patients with soft tissue sarcoma.

BACKGROUND: Successful chemotherapy for patients with soft tissue sarcoma (STS) has been limited by a lack of active drugs. The most effective single agents are doxorubicin, dacarbazine, and, more recently, ifosfamide. Previously the most widely used combination has been CYVADIC (cyclophosphamide, vincristine, doxorubicin, and dacarbazine). In one randomized trial, ifosfamide was superior to cyclophosphamide; two nonrandomized studies also reported favorable results. Etoposide monotherapy was successful in 8%; the effectiveness of cisplatin was 5-23%. In view of these findings, the authors treated STS patients with an etoposide, cisplatin, and ifosfamide (VIP) combination. METHODS: The eligibility criteria included histologically confirmed, inoperable, metastatic or locally recurrent STS; a World Health Organization (WHO) performance status of 0-2; a maximum age of 75 years; and progressive, measurable disease. A total of 104 patients were treated from January 1990 to June 1997. The median age of the patients was 42.4 years. The patients were treated with a combination of etoposide (100mg/m(2) for 5 days), ifosfamide (2000 mg/m(2) for 2 days), and cisplatin (20mg/m(2) for 5 days) once a month via a peripheral vein. The treatment response and the toxicity were assessed according to WHO criteria. RESULTS: Of 104 evaluable patients, 47 responded. The overall response rate was 46% (complete response: 10%; partial response: 36%). In 43 patients the disease remained stable (41%). Remission duration was 4.6 months. Toxicity was moderate. The main adverse events were alopecia (100%), nausea and vomiting (73%), and leukopenia (29%). CONCLUSIONS: This new combination is promising for the treatment of patients with advanced STS.

Adult↗
PubMed2000

Limb-saving surgery, survival, and prognostic factors for osteosarcoma: the Hungarian experience.

BACKGROUND AND OBJECTIVES: There are many factors thought to have an influence on the prognosis of osteosarcoma that have been reported in the literature. Their significance, however, still remains controversial in most cases. Experience with osteogenic sarcoma (OS) was reviewed in order to evaluate surgical results and survival and to determine the prognostic factors. METHODS: Ninety-six patients with high-grade osteosarcoma of the extremities were treated between 1986 and 1997 in the authors' institution. They were divided into 3 groups: In group I, all 75 patients with nonmetastatic OS received intensive chemotherapy (high-dose methotrexate, doxorubicin, ifosfamide, and cisplatin) and underwent surgery. In group II, 9 patients already had metastases at the time of referral. In group III, 12 patients received chemotherapy in delayed or suboptimal form. Results and Conclusions In group I, there were local recurrences in 3 patients (7%) and metastases in 8 patients (20%) with limb-saving, whereas these numbers were 1 (3%) and 14 (38%) in those who had amputation. The 5-year disease-free survival (DFS) was 72% and 69% in the limb-saving and amputation groups, respectively. In groups II and III, 5-year DFS was extremely poor, 10% and 20% only, underlining the importance of stage and intensity of chemotherapy, respectively. With univariate analysis, sex, duration of symptoms, and radiographic appearance of OS had no prognostic value, whereas tumor volume <60 cm(3), wide or radical surgical margin, distal location of OS, cartilagineous ground substance <20%, and response to chemotherapy were positive prognostic factors. The last 4 variables maintained their significance in the multivariate Cox model as well. Age >30 years showed indirect negative influence on the final outcome through enhanced intolerability to the drugs and less cooperability of the patients. The results on survival with limb-saving surgery were well comparable with those of amputation.

Adolescent↗
PubMed1997

[Congenital broncho-esophageal fistula manifesting in adult age].

Congenital bronchoesophageal fistula manifesting in adulthood is an infrequent disorder. Presenting a successfully treated case, the authors review the clinicopathological features of the disease regarding the data of literature. The long-standing, non-specific respiratory symptoms recurring in the same pulmonary location call the attention to the fistula, which should be verified by esophagography and endoscopy. The adequate treatment consisting of fistulectomy and resection of the destroyed lung parenchyma lead to prompt recovery.

Age Factors↗
PubMed1996

[Fiberoptic bronchoscopy in intensive care units].

The authors have retrospectively analysed 161 bedside fiberoptic bronchoscopies performed at intensive care units and demonstrate its' main indications, results and influences on the patients' condition. In 35.4% of cases immediate improvement was observed, in 31.6% the examination contributed to choose the proper treatment. Due to the safe method only one serious complication occurred because of bronchoscopy. The results justify-according to the literature-that fiberoptic bronchoscopy is an indispensable method to check airways and for diagnostical and therapeutic interventions of critically ill patients.

Bronchoscopes↗
PubMed1994

[Experience with transbronchial lung biopsy].

The histological results of transbronchial lung biopsies have been analysed in 109 patients with diffuse or localised lung diseases. This diagnostic procedure is relatively safe, well tolerable and can be carried out in outpatients. In diffuse lung diseases its use can replace the open lung biopsy. The efficacy of this method depends on the availability of biplanar fluoroscopy, the quality of the excisors, the quantity and size of the biopsy material and the technique of the histological handling.

Aged↗
PubMed1994

[The role of Nd-YAG in the management of tracheobronchial stenosis].

122 patients with the main airway stenosis were treated with Nd-YAG laser phototherapy. The endobronchial laser treatment was performed either with flexible bronchoscope (64%), or with rigid instrument (36%). This method can result a final recovery of the patients with benign tumors, or inflammatory processes, at the patients with malignant tumors can be achieved an effective palliation. Taking account the generally accepted indications and contraindications of the endobronchial laser phototherapy the number of the complications can be reduced.

Aged↗