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Biomedical subjects

H Seiter

Publications and source records attributed to H Seiter.

At least 37 records · Page 2Linked to original sources
PubMed1983

[Modified T-catheter and its use for transvenous hypothermic in situ perfusion in the surgical restoration of the kidney with staghorn calculi].

The operative treatment of kidneys with staghorn calculi requires intraoperative X-ray and fluoroscopic checks and also ischaemia. Regional transvenous hypothermic perfusion of the kidneys is a method which is technically simple to implement and offers advantages over both clamping of the hilum and transarterial perfusion methods. The catheter used by us requires no great expenditure on material: it can be constructed anywhere out of readily available sterile materials.

Catheterization↗
PubMed1980

[A rare case illustrating the persistence of the oviduct in a man with simultaneous transverse testicular dystopia and uterine hernia].

A twenty-years-old man is described who had to undergo an operation because of persisting the oviduct connected with 'dystopia testis transversa et hernia uteri'. All the examinations led to the results of a male sex. The rudimentary uterus situated in the left scrotal cavity was extirpated and the both testicles were placed into the corresponding scrotal cavities. The patient declared that he is able to having a normal sexual life.

Adult↗
PubMed1980

[Advanced malignant kidney tumors with the clinical picture of septic kidney].

At the instance of 4 patients the differential-diagnostic difficulties between advanced malignant renal tumours and the so-called septic kidney are demonstrated. In fever conditions in connection with unclear urographic findings, in particular with the so-called dumb kidney, it is right primarily to search for a septic renal disease. In spite of urgency of diagnosis and above all of the therapeutic consequences resulting from this the presence of an advanced malignant renal tumour must be included in the differential diagnosis also when there are no leading tumour symptoms. This demands the rapid use of a highly specialised radiologico-urologic diagnostics. Many clinical and paraclinical findings are differential-diagnostically without importance, since they may be typical for the two pictures of the disease. A certain preoperative diagnosis should be achieved above all on account of the differentiated operative approach and the operative way of access.

Aged↗
PubMed1979

Ultrastructural and biochemical changes of human papillary heart muscle during different methods of induced cardiac arrest.

To determine the protective effects of different methods of cardioplegia, studies on ATP/lactate levels and ultrastructure were performed in human papillary muscles obtained during mitral valve replacement. In group I (n = 5), plain ischemic arrest in hypothermia (systemic venous temperature = 24 degrees C) was accomplished. In group II (n =12), the heart was arrested by injection cardioplegia using magnesium-aspartate-procaine at systemic venous and myocardial temperatures of 24 degrees C. In group III (n = 12) Bretschneider infusion cardioplegia at systemic venous and myocardial temperatures of 26 degrees C and 19 degrees C respectively was applied. With regard to ultrastructural changes there were no clearcut differences in the three methods of hypothermic cardiac arrest after 60 minutes of ischemia. Ischemic changes tended to be slightest in group III (infusion cardioplegia). ATP decay and lactate increase were significant in group I and moderate to minimal in groups II and III after the same period of time. It is concluded that for aortic cross-clamp times up to 60 minutes, body hypothermia and injection cardioplegia using magnesium-aspartate-procaine at a myocardial temperature of 24 degrees C provide adequate protection of the myocardium. For ischemia times beyond 70 minutes, profound myocardial hypothermia below 20 degrees C is preferred.

Adenosine Triphosphate↗
PubMed1979

[Critical considerations on the production of a pulsating fluid stream].

Two types of gears are used for perfusion of cadaveric kidneys. Electric models are presented for both types and the optimal devices are discussed. Based upon in vivo conditions, the relevant parameters are transferred to the model and an according equipment for pulsatile fall-stream perfusion is presented, which is compared with another gear. The clinical criterion for good initial perfusion is the erythrocyte count in the initial perfusate. Judged from that, the chosen device is significantly better than its predecessor.

Biophysical Phenomena↗
PubMed1979

[Organ preservation in intra- and extracorporeal kidney surgery].

With the help of cases of own patients is reported on the possibility of organ preservation in intra- and extracorporal renal surgery. In 5 patients with tumours, 3 patients with coral calculi and one patient with an extended disease of the ureter five times the extracorporal renal surgery with following autotransplantation and initial pulsatile fall stream perfusion was performed. Four times the in-situ-perfusion with hypothermic Collins solution and in-situ-operation was performed. Indication and advantages for the different methods are demarcated.

Adenocarcinoma↗
PubMed1978

[Enzymatic and morphologic studies on long-term perfused dog kidneys].

21 canine and 12 human kidneys were submitted to long-term perfusion for 24 hours. During that time LDH-activity, histologic, enzyme-histochemic, and ultrastructural examinations were carried out. The findings proved that kidneys with lesser damage from ischemia showed lower activities during the first 4 to 6 hours than kidneys which were more injured before. The latter showed the same ultrastructural alterations as kidneys after perfusion for 24 hours, which suggests an irreversible partial damage of the organ.

Albumins↗
PubMed1978

[Immunologic course of kidney transplants studied by means of cellular and humoral immunity tests].

In 10 human-allo-transplanted persons and evaluation of the postoperative course was done with the help of specific and unspecific, cellular and humoral immune tests which were compared with clinical parameters. While the E-rosette-test did not show any correlation to the typical courses in the immunoglobulins postoperatively after a clear decrease at the time of the clinically diagnosed first set reaction an increase above all of the IgM could be observed. Unspecific tests, such as CRP and FSP may, concerning the rejection diagnostics, confirm the suspicion in as far as other factors, such as infection of the urinary tract were excluded. By choice of a suitable relation system the evidence of the immunoglobulins could possibly be proved, whereas for the cellular demonstration methods the E-rosette test does not seem to be recommendable in the performed way.

Adolescent↗
PubMed1978

[Perfusion technic during clinical intra- and extracorporeal tumor removal from a solitary kidney].

On the basis of own experiences in operations of tumour-carrying kidneys two perfusion techniques for the intra- or extracorporal renal surgery are exolained and weighed one to another. In the in-situ-perfusion the pulsatile mechanical perfusion with supervisable flow, perfusate pressure and under direct measuring of temperature on organs has proved. The disadvantage of the in-situ-perfusion in contrast to the extra-corporal surgery consists in the impossibility of the local after irradiation.

Humans↗