Search PubMed⌕ Search

Biomedical subjects

P Wieczorek

Publications and source records attributed to P Wieczorek.

At least 19 recordsLinked to original sources
PubMed2001

[Comparison of the efficacy of treatment by two laparoscopic techniques combined with medical treatment of endometriosis stage three and four].

20 patients were treated for endometriosis with combined treatment, we have divided prospectively our patients on the 2 groups. One group was operated by laparoscopic marsupialisation of endometrial cyst and coagulation. The second group was operated by stripping of lining. Second-look laparoscopy was performed after six month medical treatment. Two techniques laparoscopic was very efficacy (decrease of AFS score). The difference between them wasn't significant.

Adult↗
PubMed2001

Ultrasound images of thrombosis of caval vein inferior--three selected cases.

Thrombosis of vena cava inferior can occur as complication of numerous diseases. Because of a variety of causes, the clinical signs accompanying thrombosis are often ambiguous, which is the cause of delay in initiation of appropriate treatment. This article presents three interesting cases of thrombosis of vena cava inferior in children accompanying extensive burn, the Budd-Chiari syndrome, and prolonged presence of catheters in vessels. The use of ultrasound in B presentation, Color Doppler and Power Doppler has enabled early diagnosis and application of appropriate treatment.

Adolescent↗
PubMed2001

Supported liquid membrane extraction of peptides.

The application of supported liquid membrane (SLM) extraction for the enrichment of short peptides is presented. The extraction efficiency is dependent on the pH of donor phase and salt concentration in acceptor phase. Moreover, the extraction efficiency is also influenced by the peptide amino-acid sequence and hydrophobicity.

Biochemistry↗
PubMed2000

Determination of optical purity of phosphonic acid analogues of aromatic amino acids by capillary electrophoresis with alpha-cyclodextrin.

A simple and efficient method for the determination of enantiomeric purity of structurally diverse phosphonic and phosphinic acid analogues of phenylalanine and phenylglycine using capillary electrophoresis is presented. These preliminary studies indicated that the enantiomer separation is strongly dependent on the structure of the aminophosphonic acid.

Amino Acids↗
PubMed2000

Extraction of glyphosate by a supported liquid membrane technique.

The possible application of the supported liquid membrane (SLM) technique for the extraction of glyphosate is presented. For the extraction of this compound the SLM system has been applied with utilisation of Aliquat 336 as a cationic carrier incorporated into the membrane phase. The extraction efficiency of glyphosate [N-(phosphonomethyl)glycine] is dependent on the donor phase pH, carrier concentration in the organic phase and NaCl concentration in the acceptor phase. The optimal extraction conditions are: donor phase pH>11, acceptor phase of 2 M NaCl solution and the organic phase composed of 20% (w/w) Aliquot 336 solution in di-hexyl ether. Counter-coupled transport of chloride anions from the acceptor phase to the donor phase is a driving force of the mass transfer in this system.

Clinical Laboratory Techniques↗
PubMed1999

[Ultrasonographic diagnosis of Meckel's diverticulum--case report].

Meckel's diverticulum is the congenital anomaly of the gastrointestinal tract affecting about 2% of the population. It is a true diverticulum containing all layers of the ileum wall. Heterotopic tissue is frequently present (25%): gastric mucosa, duodenal mucosa, jejunal mucosa and pancreatic tissue. Meckel's diverticulum is localized about 50 cm from the ileo-colic valve on the external border of the ileum. Most of Meckel's diverticula are clinically silent; clinical symptoms (19%) are in cases of complications such as: strangulation of the bowel in a ring formed by the diverticulum, intussusception of the diverticulum into the ileum, volvulus, incarceration of the diverticulum in hernia, tumour originating in the diverticulum. The diagnosis of Meckel's diverticulum is very difficult. The most useful in the diagnosis are plain abdominal radiographs, barium studies, CT, sonography and scintigraphy Abdominal sonography shows a tubular fluid structure localized far from the coecum. The wall of the diverticulum is swollen and in the lumen are chyme or fat.

Child, Preschool↗
PubMed1998

Ectopic pregnancy diagnosis in very high risk patients.

The authors analyse the effectiveness of ectopic pregnancy diagnosis in women with clinical history and high psychological motivation for treatment. The effectiveness of the diagnostic algorithm was studied in 21 women with previous history of infertility treatment (including 15 who had undergone tube surgery). The diagnostic process was begun between 20th and 25th days after the suspected conception. The only clinical symptom that the patients complained of was spotting (7 cases). The algorithm used serum HCG determination (EIA); in cases of HCG ranging between 2 mIU/ml and 1500 mIU/ml (or clinical uncertainty)-transvaginal sonography (with colour Doppler) was used. If ectopic pregnancy was suspected, laparoscopy was done. It was found that in 15 cases laparoscopic images agreed with diagnostic results; in 5 cases, the image obtained was false negative; in 1 case it was false positive. The diagnostic efficiency of sonography alone was higher than if it was correlated with HCG, but it, too, did not secure against false positive and false negative results. The conclusion was drawn that despite very high sensitivity (70%) and specificity (93%) of the diagnostic procedures used, in high-risk patients the diagnosis should be verified by laparoscopy.

Adult↗
PubMed1997

The ability of soil-borne fungi to degrade organophosphonate carbon-to-phosphorus bonds.

The ability of a wide variety of soil-borne fungal strains to degrade four structurally different compounds containing P-C bonds, namely the naturally occurring amino acid ciliatine, the popular herbicide glyphosate, phosphonoacetic acid and 2-amino-3-phosphonopropionic acid, was studied in order to show that soil fungi may play an important role in the biodegradation of organophosphonates. Most of the strains appeared to utilize ciliatine as the sole source of phosphorus for growth. Only a limited number of strains were able to grow on the other phosphonates used in this work. The strains of Trichoderma harzianum, Scopulariopsis sp. and Aspergillus niger chosen for more detailed study show the ability to degrade ciliatine, glyphosate and also amino(3-methoxyphenyl)methylphosphonic acid effectively.

Alanine↗
PubMed1997

[A case of developmental cerebral cortex disorder with epilepsy resistant to treatment].

Developmental disorders of the cerebral cortex were described as a local lesion in the right frontal lobe. Wide gyruses with increased density of cortical brain were observed. Changes in the cerebral cortex were correlated with clinical symptoms and EEG results and were responsible for the epilepsy resistant to any treatment. CT examination made possible the precise localisation of the lesion and then proper conservative or operative therapy.

Adolescent↗
PubMed1997

[Porencephaly in infants and children imaged with tomography].

On the basis of current bibliography verum and spurum porencephaly have been distinguished. Verum porencephaly originates in prenatal life and is defined as disorder of brain tissue development. Its main characteristic is that cave borders are covered with grey matter often connected with lateral ventricle. Spurum porencephaly is term for lack of brain tissue caused by its disintegration. Five cases of cysts in infants and children diagnosed in CT examination were presented with the description of the patients' clinical condition. 3 cases were diagnosed as verum porencephaly, the remaining 2 cases turned out to be spurum porencephaly.

Adolescent↗
PubMed1997

[Endometrial changes in the ovaries during full-term pregnancy: a case report].

The authors described case of 27 years old female patient treated due to infertility of unknown etiology. The female was pregnant after series of intrauterine insemination. During caesarean section due to pelvic longitudinal lie the chocolate cyst and endometriosis of the ovary were found. The authors did not find any information in the literature about coincidence of endometriosis of female reproductive organs and full-term pregnancy.

Adult↗
PubMed1996

Marfan's syndrome and surgical repair of ascending aortic aneurysms.

Marfan's syndrome is an inherited, degenerative connective tissue disorder that affects many body systems (eg, skeletal, ocular, cardiovascular, cutaneous, pulmonary, abdominal, neurologic). The cause of Marfan's syndrome is unknown, but recent genetic studies have linked this disorder to chromosome 15q15-q21.3. The characteristics associated with Marfan's syndrome require a multidisciplinary approach to patient care. This article discusses one serious complication of Marfan's syndrome-aortic root dilatation- and composite graft repairs of ascending aortic aneurysms. Physicians and nurses must be more aware of Marfan's syndrome so that life-threatening medical conditions can be evaluated and followed by health care providers.

Adolescent↗
PubMed1995

Developing critical pathways for the operating room.

Case management and managed care systems are emerging in the 1990s as ways to deliver quality, cost effective patient cae. The essential tool of managed care systems is a critical pathway, which is developed through the collaboration of health care team members. The critical pathway is an abbreviated version of the patients hospital course according to his or her medical diagnosis or case type and it allows health care team members to continually evaluate the patients care. It has helped team members at Johns Hopkins Hospital, Baltimore, identify more effective and cost-efficient ways to deliver patient care.

Aged↗
PubMed1995

Organophosphonate Utilization by the Wild-Type Strain of Penicillium notatum.

We studied the biodegradation of compounds containing phosphorus-to-carbon bonds by using a wild-type strain of Penicillium notatum. The substrate specificity of this strain was studied, and we found that it is able to utilize structurally diverse organophosphonates as sole sources of phosphorus. This ability seems to be inducible, as indicated by the presence of a lag phase during growth. A popular herbicide, glyphosate, inhibited fungal growth, but it was also degraded by the fungus if it was applied in sublethal doses. This indicates that P. notatum may play an important role in biodegradation of organophosphonates. The strain which we used did not metabolize any of the phosphonates which we tested when they were used as sole carbon or nitrogen sources.

Journal Article↗