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Biomedical subjects

A Balint

Publications and source records attributed to A Balint.

6 recordsLinked to original sources
PubMed2004

[Results of laparoscopic repair of abdominal wall hernias using an ePTFE-polypropylene composite mesh].

BACKGROUND: The standard technique for laparoscopic ventral hernioplasty (peritoneal onlay) reduces the recurrence rate and the rate of other complications, in particular the risk of infections. However, the procedure requires a special mesh to mitigate the risk of visceral adhesions. For this purpose an ePTFE mesh is generally used. There are limited reported clinical data regarding the long-term results and benefits of other biomaterials. STUDY DESIGN: Bard Composix mesh was used for laparoscopic ventral hernia repair. This biomaterial combines two different clinically proven materials--polypropylene with a thin layer of ePTFE--to maximize ingrowth of surrounding tissue, while mitigating the risk of visceral adhesions. Demographic, operative and postoperative data were collected and analyzed. Follow-up clinical evaluations were conducted 6-10 days, 4 weeks, and every 6 (th) month after surgery in all patients. RESULTS: Fifteen patients were involved in the study. The mean operating time was 101.2 min (64-190 min). There were no intraoperative complications or conversion to open procedure. Postoperative complications were 1 seroma, 4 cases of prolonged ileus, one tacks-site pain requiring second-look laparoscopy. Hospital discharge occurred on average 6 days (3-10 days) after surgery. The mean follow-up was 12.4 months (range 5-29 months). No late complications or hernia recurrence were observed. CONCLUSIONS: Laparoscopic prosthetic ventral hernioplasty using the composite polypropylene/ePTFE mesh offers short hospital stay and acceptable complications for primary and recurrent ventral hernias. Disadvantage of the composite mesh is the difficulty to roll this product into a sufficiently small size to permit its easy introduction into the abdominal cavity.

Adult↗
PubMed1995

[Experience in 735 cases of laparoscopic cholecystectomy].

In the period from December, 1991 to December, 1993, 735 successful operations of laparoscopic cholecystectomy (LC) were conducted in the III Surgical Clinic of the Semmelweis Medical University, Budapest, Hungary. Among the patients were 154 females and 581 males 14 to 82 years of ago. Conversion of laparotomy was undertaken in 58 (7.9%) patients because of technical difficulties and the development of complications. Intraoperative complications were encountered in 197 (26.8%) and postoperative complications in 38 (5.17%) patients.

Adolescent↗
PubMed1995

[Video thoracoscopic sympathectomy].

Twenty operations of video thoracoscopic sympathectomy (VTS) were performed on 17 patients in 1992-1994. The indications for the operation are Raynaud's disease and some obliterating occlusions of the upper limb arteries in which a reconstructive operation is not possible. The VTS operation is technically simple and atraumatic. Its effectiveness is determined by the disappearance of pain, warmer hands, and the results of histological study. The authors experience has shown that VTS does not need special instruments. At the same time, they believe that cooperation with specialists in thoracic and vascular surgery is very important and obligatory in development of complications.

Adolescent↗
PubMedDate not supplied

Transcutaneous electrogastrography: a non-invasive method to evaluate post-operative gastric disorders?

BACKGROUND/AIMS: With the development of high-performance computer programs, transcutaneous electrogastrography has experienced a renaissance in the last few years and is widely recommended as a non-invasive diagnostic tool to evaluate functional gastric disorders. We assessed the clinical value of electrogastrography in symptomatic and asymptomatic patients after a variety of procedures of the upper gastrointestinal (GI) tract. METHODOLOGY: Electrogastrography tracings were recorded with a commercially available data logger using a recording frequency of 4 Hz. A standard meal was given between a 60 min preprandial and a 60 min postprandial period. The following parameters were analyzed pre- and postprandially utilizing Fourier and spectral analysis: Regular gastric activity (2-4 cycles/minute), bradygastria (0.5-2 cycles/minute), tachygastria (4-9 cycles/minute), dominant frequency and power of the dominant frequency. Nineteen asymptomatic healthy volunteers served as a control group. Forty-nine patients, who had undergone upper intestinal surgery, were included in the study (cholecystectomy n = 10, Nissen fundoplication n = 10, subtotal gastrectomy n = 8, truncal vagotomy, and gastric pull-up as esophageal replacement n = 6). Twenty of these patients complained of epigastric symptoms post-operatively, while 12 of these 20 patients also had a scintigraphic gastric emptying study with Tc99m labeled semisolid meal. RESULTS: Preprandial gastric electric activity was between 2 and 4 cycles/minute in 60-90% of the study time in healthy volunteers. In all study groups the prevalence and power of normal electric activity increased significantly after the test meal (p < 0.001). After cholecystectomy, Nissen fundoplication, subtotal gastrectomy or vagotomy and gastric pull-up pre- and postprandial gastric electric activity showed a greater variability compared to normal volunteers (p < 0.05), but no typical electrogastrography pattern could be identified for the different surgical procedures. There was no significant difference in the electrogastrography pattern between asymptomatic and symptomatic patients and patients with normal or abnormal scintigraphic gastric emptying curves. CONCLUSIONS: There is no specific electrogastrography pattern to differentiate between typical surgical procedures or epigastric symptoms. To date, electrogastrography does not contribute to the diagnosis and analysis of gastric motility disorders after upper intestinal surgery.

Adult↗