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Biomedical subjects

H Fröhlich

Publications and source records attributed to H Fröhlich.

At least 19 recordsLinked to original sources
PubMed2005

[Peranal passage of a surgical sponge: fortunate outcome of an intraoperative oversight].

Four years after cholecystectomy and recurrent epigastric pain, a surgical sponge passed per anum in a 39-year-old man. Diagnostic procedures including clinical and laboratory examinations, ultrasound, coloscopy, and abdominal CT did not reveal any noteworthy residual changes by the foreign body. After 4 years in situ, the surgical sponge showed no alterations in structure. The representatives of the hospital concerned had to satisfy the patient's claims for damages. Pathology, technical diagnostic methods, and prognosis in cases of retained gauzes are presented. It is essential to count instruments and towels and advisable to use only single sponges in forceps in order to prevent intraoperative loss.

Adult↗
PubMed1998

[Acute heart arrest during urologic routine interventions in 2 cases. Interdisciplinary crisis management assures tumor-free survival despite fulminant lung embolism with acute heart arrest during thoraco-abdominal tumor nephrectomy and radical cystoprostatovesiculectomy].

Intraoperative pulmonary embolism with acute cardiac arrest can successfully be managed by immediate open cardiac massage followed by rt-PA injection, an inter-disciplinary approach is mandatory. The scheduled tumor nephrectomy was performed 6 weeks after the initial event. The tumor was embolised with intravascular coils placed in a supraselective manner by the radiologist. During the secondary procedure it was found to be necrotic. In the second case the event occurred at the end of a radical cystectomy. Instead of an ileal conduit cutaneous ureterostomies were used for urinary drainage after cardiac output had been restored and rt-PA had been administered.

Aged↗
PubMed1991

[Decreasing the surgical risk of laparoscopy by using a newly developed, blunt trocar].

Laparoscopy is one of the most frequent interventions used in operative gynaecology. Because of the possible, occasionally grave complications through the use of the trocar forms applied so far, we have developed a new blunt trocar. By using this trocar throughout 1889 interventions, we have had no complications which could be ascribed to the use of this blunt instrument. The advantage of this trocar lies in the avoidance of the possible and feared injuries to the intestines and vessels. Even though overall complication rates in laparoscopy are low and there is no evidence of a statistically significant reduction compared with the use of the sharp trocar, the advantages of the blunt trocar are obvious. There is only one disadvantage, namely the slightly prolonged training time of the younger colleagues, as well as the theoretical possibility of a prolapse of the omentum. Nevertheless, in our opinion, the use of the blunt trocar is advisable to reduce the complication rate in laparoscopy.

Aorta, Abdominal↗
PubMed1990

[A realistic cardiovascular model for evaluating clinical applicability of duplex and color-Doppler equipment].

To evaluate the accuracy and reliability of colour-coded Doppler devices (CCDD) for practical use, a circulatory phantom with in vivo characteristics was developed. The experimental design consists of a piston-diaphragm metering pump with an adjustable piston volume and frequency of stroke as well as silicone tubings with different elasticity and diameters comparable with cadaver arteries. Depending on physiological conditions, blood as a circulating fluid and the surrounding soft tissues of the artery near the Doppler probe should be employed. The transducer should be manually guided. Thus, comparable to physiological frequency spectral displays, different types of wave forms (e.g. monophasic, triphasic) were initiated to analyze the reliability of CCDDs for practical use.

Blood Flow Velocity↗
PubMed1990

[Computed tomographic detection of a polypous form of eosinophilic gastroenteritis in the duodenum].

The eosinophilic granuloma of the intestine is a relatively uncommon lesion which is unrelated to the eosinophilic granuloma of lung or bone. We describe one case of this disease in the duodenum evaluated by hypotonic duodenography and computed tomography (CT). The radiographs showed sharply delineated circular intra-luminal filling defect. CT demonstrated a homogeneous soft tissue mass and excluded an extraluminal extension of the lesion. Histological examination is essential for confirming the diagnosis.

Aged↗
PubMed1990

[The spontaneous regression of a dissection of the descending aorta].

The outcome of an aortic dissection is either endothelialisation of the false lumen forming a so-called double aorta, or thrombosis of the sack leading to fibrosis. Healing of an aortic dissection, particularly if thrombosis and organisation have obliterated the dissected segment, is rare and there are only a few case reports on this finding. We report on a case where spontaneous resolution of the false lumen of Type B aortic dissection was demonstrated by serial contrast enhanced computed tomography after antihypertensive medical treatment.

Aortic Dissection↗
PubMed1990

[A new computer-controlled device for stress images of the upper ankle joint].

A new apparatus has been developed for stress roentgenograms of the ankle joint to demonstrate rupture of the fibular collateral ligaments possible. The disadvantages of well-known techniques, such as manual application of stress and the use of holding devices are eliminated. The inversion stress is applied by a foot support driven by an electric motor. A microcomputer controls the force of inversion in dependence on reactive muscle splinting; i.e. the apparatus simulates the application of the inversion force by a physician acting according to feeling. In contrast to the radiography technique with manual holding, the patient is not able to press the foot against the inversion force if a pain-reflexive muscle contraction occurs. Other holding devices generate the inversion force with a threaded shank or traction weight; with the new device the patient's discomfort lasts only 2 s. In the last 5 years the new holding device has shown its reliability in about 1500 examinations.

Ankle Injuries↗
PubMed1989

Tethered cord syndrome: progressive symptomatology in adults. Case report: symptoms, diagnosis, treatment.

Medical history and symptoms of a 37 year old woman showing progressive conus syndrome for nine months after a symptomless interval of 20 years are reported. NMR, myelography, and computed tomographic myelography verify a filum terminale with a paramedian fixation at the level of the lumbosacral angel and a further fixation at the caudal end of the dural sac at the lower end of the sacrum. The operative findings and procedures are described. The importance of control by neuro-stimulation of the filum terminale during surgery is stressed. The post-operative remission of most of the symptoms proves the success of the treatment.

Adult↗
PubMed1989

Prolongation of pregnancy and survival of twin B after loss of twin A at 21 weeks' gestation.

At 21 weeks' gestation premature rupture of the membranes led to unavoidable delivery of an immature first twin (390 gm) who died shortly after birth. The placenta was left undisturbed. Twin B was confirmed to be alive within an intact second sac. Directly after delivery of twin A tocolysis was begun and cervical cerclage was undertaken. Pregnancy was successfully prolonged, which enabled the second fetus to remain in utero and grow for another 12 weeks. Onset of active labor resulted in delivery of a healthy 1750 gm female infant at the beginning of 33 weeks' gestation. The neonatal care was benign and the infant left the hospital in excellent condition after 4 weeks. The case is presented in detail and discussed with respect to the aggressive approach undertaken to prolong gestation.

Adult↗
PubMed1988

[Prostaglandins for termination of pregnancy in the 2d and 3d trimester].

38 abnormal pregnancies in the second and third trimenon have been terminated by a combined therapy of natural prostaglandine, locally applied for ripening the cervix, followed by systemic application of synthetic prostaglandine of the third generation Sulproston. 8 pregnancies have been terminated only after ripening the portio with prostaglandine vaginal tablets. The other 30 women were injected with 500 micrograms Sulproston intramuscular after local priming. All the pregnancies were terminated by this procedure. In 25 cases the effective dose was 500 micrograms, three times 1000 micrograms, once 1500 and 2000 micrograms. 13 women suffered from side effects like vomiting and pain, which could be treated easily. In 27 cases the abortion took place within 20 hours after the first application of Sulproston. Our procedure obviously has a very good labour inducing effect and seems to be the ideal method for inducing artificial abortion.

Abortifacient Agents↗
PubMed1987

[Upper Austria model study to assess the prevalence and incidence of congenital abnormalities].

Among the 15.998 live births recorded in Upper Austria in the year 1985, a representative malformation rate of 1.79, respectively a representative incidence of 17.94 in 1000 live births is reported. The incidences of characteristic malformations and of single malformations combined in malformation groups are determined. An instrument of investigation, especially developed for and successfully used in this examination in form of an illustrated questionnaire is introduced.

Austria↗