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Biomedical subjects

K H Leitz

Publications and source records attributed to K H Leitz.

At least 37 records · Page 2Linked to original sources
PubMed1978

[Retroperitoneal vascular injuries (author's transl)].

From 1973-1977, 21 retroperitoneal vascular injuries were seen at the Medical School of Hannover. Vascular lesions of polytraumatized patients were treated 12 times. The rest were iatrogenic traumas after laminectomy, herniotomy, and hip replacement as well as after urologic and gynecologic operations. The overall mortality was 43%. Surgical treatment of the different vascular regions is discussed.

Abdominal Injuries↗
PubMed1978

[Reconstruction of the aorta in mycotic aortic aneurysm--report of two cases of salmonella infection (author's transl)].

Two patients with infected aortic aneurysm underwent surgical treatment. When using autologous tissue in place of the infected aorta a recurrent aneurysm was observed four months later. Extraanatomical bypass of the infected area with prosthetic material and consecutive removal of all infected tissue seems to be the only successful management. This is confirmed by another patient who was treated successfully in this way. Prolonged antibiotic therapy after resection of infected aneurysms seems to be mandatory.

Aneurysm, Infected↗
PubMed1978

[Left ventricular dynamics with exercise after revascularization in advanced coronary heart disease (author's transl)].

66 patients with 2 and 3 vessel coronary heart disease were studied before and after complete successful revascularization. Hemodynamic measurements and biplane left ventricular angiograms were obtained at rest and during supine bicycle exercise.--After operation a significant overall decrease of LVEDP with exercise was seen; exercise LVEF increased in cases with left main disease and in most cases with double vessel disease and double bypass. Inconsistant response was present in 3 vessel disease. Improvement of left ventricular dynamics with exercise in advanced coronary disease after complete revascularization can be expected mainly in 2 vessel disease and left main coronary disease.

Angiocardiography↗
PubMed1978

[Efficiency of sequential aorta-coronary vein-bypass (author's transl)].

From 1976 to 1977 308 patients were treated with multiple aorto-coronary vein-bypass. Fiftytwo patients receiving sequential bypasses were compared with 256 patients in whom conventional multiple anastomoses were performed. The rate of postoperative bypass failure did not differ significantly in the two types of anastomoses: 16 per cent in sequential as compared to 18 per cent in conventional bypass. In both cases the circumflex-system was afflicted by bypass failure more frequently (20 per cent each). The practical and theoretical advantages and disadvantages of the two procedures are discussed. Sequential aortocoronary vein-bypass is considered the method of choice for certain combinations of coronary stenoses and also if an adequate length of vein can not be obtained.

Angiocardiography↗
PubMed1978

[Embolization of a Mobin-Uddin filter].

A case of Mobin-Uddin-Filter embolisation (28 mm filter) into the right pulmonary artery is presented. Via a right thoracotomy filter and thrombi could easily be extracted. Indication, avoidance of malposition, and the question of whether the filter should be extracted after embolisation are discussed.

Filtration↗
PubMed1978

[Unstable angina pectoris from surgical view (author's transl)].

UNLABELLED: Between January 1974 and September 1977 37 patients with unstable angina pectoris have been treated (7,6% of the patients operated upon). 49% suffered from an old myocardial infarct, 86% had a 2 or more coronary vessel disease, and only 4 patients showed critical stenoses on the left main stem. We preferred a combined medical and surgical treatment. By means of medical treatment all patients but one became painfree. At the same time coronary angiography had been performed without any complications. 37 patients received 67 vein bypasses (graft-patient-relation of 1,8). The surgical degree of revascularization was 80%. The hospital mortality came to 2,7%, the late mortality to 2,8%. Perioperatively 3 patients underwent a myocardial infarction. 84% of the patients were painfree and clinically improved. 41% went back to work in their old jobs. 84% of the vein bypasses were open. The effective degree of revascularization was 67%. CONCLUSION: There is no difference between patients with stable and unstable angina referring to coronary morphology, rate of survival and of surgical complications as well as to clinical and objective improvement. We recommend an early but not emergency angiography and we prefer an elective surgical treatment and not an emergency procedure.

Adult↗
PubMed1975

[Infected groin following vascular surgery].

From August 1972 to July 1973 174 vascular reconstructions in the iliac and femoro-popliteal region were performed. All infections of the groin incision were classified according to Szilagyi. 22% class I and II infections, 2% class III infections were found (3 patients). In two of these patients the bleeding was managed by the following method: The infected piece of the artery was resected. The vascular continuity was reconstructed by autologous vein. The anastomoses were burried in uninfected surrounding muscles. Both patients left the clinic with open leg arteries. Unfortunately we lost the third patient doing an extraanatomical bypass. The reasons for the high incidence of groin infections are discussed.

Arterial Occlusive Diseases↗
PubMed1975

[Paraplegia following acute infrarenal aortic occlusion (author's transl)].

The clinical syndrome of paraplegia following acute occlusion of the infrarenal aorta may be caused by either ischemic spinal cord damage or ischemia of the cauda equina and sacral nerve roots and ganglia. The neurologic manifestations are similar and therefore specific anatomic diagnosis is difficult. From October 1972 to February 1975 a total of 31 patients with infrarenal aortic occlusion were treated at the Medizinische Hochschule in Hannover. In nine cases the occlusion up to the renal arteries was acute. Three of these patients presented beside acute ischemic manifestations on both legs and the lower abdominal wall, neurologic symptoms of paraplegia. The anatomic and hemodynamic aspects of ischemic spinal cord damage and those of ischemic lesions of the cauda equina and peripheral nerves are discussed. There appear to be three main mechanisms responsible for vascular paraplegia following acute infrarenal occlusion of the aorta: 1. it may be caused by thrombotic occlusion of a major radicular artery which arises below the level of occlusion. 2. it may be produced by thrombosis of a lumbar collateral acting as major supply to the cord when arteriosclerotic narrowing of the major radicular artery is present. Especially in states of severe hypotension critical interference of blood supply to the spinal cord will result. 3. Paraplegia by ischemia of the cauda and peripheral nervous tissue may also follow prolonged interruption of circulation to this area supplying spinal vessels from low lumbar and sacral arteries.

Aged↗