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T Biehl

Publications and source records attributed to T Biehl.

18 recordsLinked to original sources

Is stenting necessary for a successful pancreatic anastomosis?

The effect of stenting on pancreaticojejunostomy has not been studied in a prospective randomized trial. In 34 dogs, the left pancreatic lobe was anastomosed to a Roux-Y jejunal limb using a two-layer mucosa-to-mucosa technique. In one group (n = 12), the anastomosis was constructed over a 3F polytetrafluoroethylene (PTFE) stent, and the stent was left in situ. A second group (n = 12) had the stent removed at the completion of the anastomosis. A control group (n = 10) had the anastomosis constructed without a stent. After 1 month, autopsies were performed, and anastomoses were examined for evidence of leak, occlusion, or stenosis. No anastomotic leaks occurred when a stent was used, whereas one (10%) occurred when no stent was used. No occlusions occurred in the two groups with stents, but two (20%) occurred in the no-stent group. Stenosis rates were 0% in the stent-in group, 25% in the stent-out group, and 30% in the no-stent group. Although no comparisons were statistically significant, there was a trend. Anastomoses performed over a stent, whether or not the stent was left in situ, had lower rates of leak, occlusion, and stenosis. We believe, but cannot prove, that a stent improves anastomotic integrity and patency by facilitating exact placement of mucosal sutures.

Anastomosis, Roux-en-Y

MR in the diagnosis of bone tumours.

Forty-two patients with benign as well as malignant bone tumours or with tumour-like lesions of bone were evaluated using MR tomography. The appropriate choice of examination parameters is an essential prerequisite for the adequate visualisation and the definitive verification of the presence of a tumour. By means of its multi-planar display, MR provides definite advantages in the determination of tumour localisation and extension as well as in differentiating intra-tumoural haemorrhage from surrounding, non-involved tissue. In addition, the clear delineation of neighbouring structures such as muscular compartments and blood vessels achieved in MR can be useful in the planning of an eventual surgical approach. This new technique has proved itself superior to other available imaging modalities in the differentiation of residual or recurrent tumour from post-operative changes. A characterisation of the nature or histology of a suspicious lesion on the basis of relaxation-times or signal intensities, however, is not yet possible.

Adolescent

[Normal findings and pathological changes of the patellar ligament in the computer tomogram].

In the computer tomogram, the normal patellar ligament appears as a flat band with an average density of 110 HE. After trauma and also after chronic overloading, the cross-section increases, whereas the density decreases. CT is superior to conventional x-ray diagnosis and to sonography in respect of detecting and differentiating of circumscript changes in the patellar ligament.

Adult

[Meniscus ganglia. Diagnosis and differential diagnosis].

3% of isolated meniscectomies were performed on patients with cysts of the meniscus. The etiology is not yet fully elucidated. The problems in clinical and radiological diagnosis are discussed using the examples of two operatively verified cases. In computerized tomography the density values of these lesions range from 20 to 35 Hounsfield units thus allowing specific diagnosis. Localization and extent of the cyst can be shown exactly by computerized tomography.

Adolescent

[Pelvic chondroma].

Chondroma as a cartilage forming tumor ist localized in up to 50% of the cases in the small bones of the hands and feet, where it is considered a benign tumor. The closer the localization is towards the trunk, the more probable is potential malignancy. The problem is discussed describing two cases with chondroma of the pelvis, which developed into chondrosarcoma. As there could not be achieved any therapeutical success with radiation and chemotherapy, therapy must consist in excochleation, i.e. en-bloc-resection, special alloarthroplasty or hemipelvectomy. The more radical and the sooner the operation is performed, the higher is the chance of survival.

Adult

[Malignant bone tumors of the pelvis and of the extremities--in conventional radiography, arteriography and computed tomography (author's transl)].

Bone tumors of the extremities are usually diagnosed by conventional radiography. A good angiogram may render information not only about intra- and extraosseous extension of the tumor, but often also about the biological dignity. CT is usually not necessary, especially since it is sometimes difficult to define the extraosseous borders of these extremity tumors with this method. In bone tumors of the pelvis, however, neither conventional radiography nor angiography render reliable information about the extent of the tumor, which CT is very well able to do. Therefore CT is primarily indicated for evaluation of bone tumors in this region. Angiography is done only for preoperative evaluation of the vascular architecture or for potential therapeutic embolisation.

Adolescent

[The congenital club foot].

The congenital clubfoot of infancy to-day is curable in 90% of cases. Aim of the treatment is normalization of form, function and growth. With combined therapy according to Imhäuser optimal results are possible: 1. Immediately after birth--depending on the general condition of the newborn--reposition of all components without the talipes equinus component; plastercasts are changed frequently till the third or fourth month of life; 2. surgical development of the heel; calcaneal equinus is corrected by elongating the tendocalcaneus combined with arthrolysis of the ankle joint; 3. intensive clinical treatment by physiotherapy; 4. ambulant orthopedic controls at regular intervals till the end of skeletal growth.

Achilles Tendon

[Pharmacokinetics of rifampicin in gastrectomized persons (author's transl)].

A laboratory method was developed whereby the presence of Rifampicin in the blood is determined microbiologically by means of a diffusion test. The organism used was Sarcina lutea. The tests established that the Rifampicin levels in the blood of pylorogastrectomized persons were significantly higher then they were in a normal control group. The daily changes in the Rifampicin levels were simulated and checked by analogue computer. The findings indicated that the increased absorption in gastrectomized persons cannot be due to accelerated passage and that it is presumably attributable to chemical and physical factors. The results are analysed statistically and summarized in graphs.

Gastrectomy

Intranuclear undulating membranous structures in cells of a human parosteal osteosarcoma.

Large numbers of paracrystalline undulating membranous structures (UMS) were observed in the nuclei of dense cells in a human parosteal osteosarcoma. The electron-dense walls of the structures were 15-20 nm thick, and circular profiles had an outer diameter of 60-70 nm and an inner diameter of 25-30 nm. The UMS-containing cell nuclei displayed a number of other characteristic features, including vermicellar bodies, large numbers of interchromatin granules, and prominent perichromatin granules. The possible significance of these features is discussed.

Adult