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Biomedical subjects

J Ammann

Publications and source records attributed to J Ammann.

At least 37 records · Page 2Linked to original sources
PubMed1979

[Paraganglioma of the glomus caroticum].

Extra-adrenal paraganglioma (chemodectoma) is a rare tumor; the tumor of the carotid body is the most frequently observed chemodectoma. Histochemical analysis of the glomus cell shows catecholamine in all cases, but functional activity of those tumors is an exception. The diagnosis of carotid body tumor can be confirmed by carotid arteriography. Surgery is the treatment of choice. Malignant degeneration of chemodectoma has been observed in a few cases.

Carotid Arteries↗
PubMed1979

[The value of Adams and de Weese's technic of cava clipping].

Indications and methods of inferior vena cava interruption in the management of recurrent pulmonary embolism are discussed. The results of a collected series are analyzed with special regard to the partial interruption technique using the Adams and de Weese clip. Five of our own cases, followed up 1 year postoperatively, are presented.

Aged↗
PubMed1979

[Deep venous thrombosis of the lower limb: experiences of thrombectomy within and outside the iliacofemoral segment].

A series of 23 venous thrombectomies of the lower limb is presented. In 19 instances indirect thrombectomy of the iliacofemoral segment was performed. 1 direct thrombectomy of the v. cava inferior led to full lumen restoration. Direct thrombectomy of the popliteal vein was attempted in 3 cases, resulting in phlebographic and clinical normalization in 2 instances. In no instance did pulmonary embolism occur during or after venous thrombectomy.

Adult↗
PubMed1977

Congenital duodenal membrane as cause for hiatus hernia, stricture of the oesophagus, and stricture carcinoma in an adult with Down's syndrome.

The case of a 31 year old male mongoloid patient is reported, where a congenital duodenal membrane, asymptomatic in childhood, had led to hiatal hernia, stricture of the oesophagus, and finally to carcinoma of the stricture (Fig. 1). Observation time until death was 26 months. In a first operation, the membrane was resected (Fig. 2) and Nissen's fundoplication performed. 31/2 months after that stricture, carcinoma was diagnosed. In the second operation, carcinoma was resected and continuity reestablished by oesophagogastrostomy. The patient died 8 months after the second intervention.

Adult↗
PubMed1977

[Choice of transplant in cranial defects. Analysis of 73 cases].

In many of the increasing number of primary or secondary calotte defects resulting from traumatic cranial injuries, plastic reconstruction of the cranium is required. Between 1965 and 1975 in the Surgical Department of Lucerne's Canton Hospital 73 posttraumatic defects of the cranium were repaired. In 69 cases autoplastic transplants and in 4 cases alloplastic transplants were used. The calotte plate (Elliot and Scott), pieces of pelvic bone (Converse), rib (Longacre and De Stefano), as well as costal cartilage (Peer) provided autoplastic material. Alloplasty for the cranium was carried out only in selected cases where special indications were present. Our results in the selection of autologous transplants for the reconstruction of secondary cranial defects is discussed and the surgical procedure is presented.

Adolescent↗
PubMed1976

Delayed arterial embolectomy: a plea for a more active surgical approach.

In a series of 18 patients delayed embolectomy of the limb was performed 8-63 days after embolism had occurred. Three patients died (2 of them after amputation), and 7 limbs were amputated after surgery. In 10 instances blood flow was fully restored by the operation. Analysis of the 18 cases leads to the conclusion that the success of delayed embolectomy where neuromuscular function is intact depends primarily on surgical technique. Direct embolectomy by local or regional exposure of the obstructed arterial level is shown to produce better results than conventional (distant) balloon catheter embolectomy by proximal incision. This is thought to be due to increased mural adherence of the embolus, with secondary thrombus formation after a delay of 8 days or more. A plea is therefore made for a more aggressive surgical attitude to delayed arterial embolization. Provided that preoperative arteriography has localized the obstructive level and that the patient's general condition allows major vascular surgery, direct removal of the embolus and secondary thrombi by open exposure of the obstructed artery is recommended.

Aged↗
PubMed1975

[Ulcerating duplication of the ileum as rare cause of massive intestinal hemorrhage in the adult].

In this paper is presented the case of a 27 year old woman in whom a congenital duplication of the distal ileum led to a massive hemorrhage. Heterotopic gastric mucosa was found in the ileal lesion and ulcer formation histologically proven. This case shows that congenital lesions of this sort may not come to the attention of the pediatrician or pediatric surgeon but become the concern of the surgeon in adult life.

Abnormalities, Multiple↗