Dilatation and the Expanding Balloon Catheter. Advantages of the Expanding Balloon Catheter

Olbert, F; Muzika, N.

doi:10.1007/978-3-642-69278-9_9

Cited by 3 publications

(2 citation statements)

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“…The idea behind this treatment is to change a long into a short occlusion or even a stenosis by means of local lysis, in order to add an angioplasty for the remaining lesion. [2][3][4][5][6][7][8] It is well known that the primary and long-term results of angioplasty are better the shorter the occluding lesion. 9,10 When performing catheter lysis, the proximal end of the occlusion is localized by fluoroscopy and the catheter advanced into the core of the occluding substance in order to perfuse the thrombotic material with the fibrinolytic drug directly.…”

Section: Methodsmentioning

confidence: 99%

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Intra-Arterial Fibrinolytic Therapy of Chronic Arterial Occlusions

Roth¹,

Rieser²,

Scheffler³

et al. 1991

Semin Thromb Hemost

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Section: Methodsmentioning

confidence: 99%

“…According to Martin and Fiebach 17 the absolute contraindications are: less than that of surgery. 3,[5][6][7] We evaluated (Table 1) 304 patients, in whom we mostly achieved catheter lysis without aspiration embolectomy. Our overall success rate in this group was 67.8%.…”

Section: Fibrinolytic Drugsmentioning

confidence: 99%

Intra-Arterial Fibrinolytic Therapy of Chronic Arterial Occlusions

Roth¹,

Rieser²,

Scheffler³

et al. 1991

Semin Thromb Hemost

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Use of a modified angioplasty balloon catheter in the dilatation of tight biliary strictures.

Rao

Blake

Theodossi

1990

Gut

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Nineteen biliary strictures were dilated using a modified angioplasty balloon catheter to allow insertion of a IOF prosthesis. In each instance biliary strictures were successfully dilated which had previously been too tight to widen with standard endoscopic biliary dilating catheters. Eleven patients had malignant hilar strictures, four malignant distal common bile duct strictures, and four benign strictures. There were no complications as a result of the procedure and satisfactory biliary drainage was established in all patients. We conclude that tight biliary strictures can be successfully dilated using a modified angioplasty balloon catheter.Endoscopic insertion of a prosthesis to drain a malignant biliary obstruction appears to be just as effective as a surgical bypass procedure.' In addition a recent trial indicates that the endoscopic approach may be safer.' In addition to the usual endoscopic difficulties experienced in selectively cannulating the biliary tree,4 we have found that one of the major obstacles to successful insertion of a biliary prosthesis is the resistance to dilatation of very tight biliary strictures despite the use of standard biliary dilators. In the past year we have investigated the value of the Olbert endoscopic balloon dilating catheter* for dilating biliary strictures which we found impossible to dilate using standard biliary dilators. Methods PATIENTSOver a 12 month period we dilated very tight biliary strictures in 19 patients (13 women). The mean age was 68 years, range 31 to 93. All patients were shown to have mechanical obstruction of the biliary tree by ultrasound examination. The nature and the site of the obstruction were further clarified by detailed cholangiography during endoscopic retrograde cholangiopancreatography (ERCP). Of the 15 patients with malignant biliary obstruction 11 had hilar lesions and the remaining four had lower common bile duct strictures. Four patients had benign strictures.The patients were admitted the day before the procedure. After obtaining informed consent from each patient, the platelet count, white cell count, and prothrombin time were measured and 2 U blood were cross matched. Ampicillin

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Assessment of angioplasty balloon catheters: further studies

Jeans

Henson²,

Holloway³

et al. 1989

The British Journal of Radiology

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Eight millimetre diameter angioplasty balloon catheters of both the Gruntzig and Olbert types from five manufacturers have been tested in vitro to establish bursting pressures and the changes in maximum and deflated diameters following repeated inflations, both when free and within a restraining sleeve. Maximum inflated diameters were within 10% of that stated and all types of balloon except one burst at a pressure greater than the recommended value. Deflated diameters were approximately 1 mm greater than insertion diameters, which are much smaller in the Olbert type. All balloons became a little larger with each of the first few distensions, and became stiffer. The maximum diameter was reached and remained constant after 10-15 distensions. Distension within a latex sleeve did not change bursting pressures, and it is considered that results from unconstrained testing can be extrapolated to behaviour in vivo. Computer modelling and calculation of maximum stress resultants also showed that calculated longitudinal and circumferential stresses are unaffected by applied restrictions. It is concluded that balloon technology is steadily improving and it is suggested that British Standards should be established for dilatation balloon catheters. Amongst other factors these Standards should include maximum recommended inflation pressures that are at least 2 atm less than bursting pressures, whilst the stated maximum diameter should be for fully extended balloons, and should have a tolerance of more than +/- 10%.

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Dilatation and the Expanding Balloon Catheter. Advantages of the Expanding Balloon Catheter

Cited by 3 publications

References 1 publication

Intra-Arterial Fibrinolytic Therapy of Chronic Arterial Occlusions

Intra-Arterial Fibrinolytic Therapy of Chronic Arterial Occlusions

Use of a modified angioplasty balloon catheter in the dilatation of tight biliary strictures.

Assessment of angioplasty balloon catheters: further studies

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