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Transseptal catheterization with the aid of a dilating catheter
Annotations
Transseptal catheterization aid of a dilating catheter
‘lhe speed and ease of advancing a transseptal catheter to the inferior vena cnva and right atrium can be enhanced by first using a dilating catheter. \\:e make a 60 cm. dilating catheter from gra) i.idnian-Leden material over a 0.045 inch guide wire ,~nd form a Cournand bend near the tip. Once the guide wire has heen placed percutaneouslyinto the right iliac vein, the dilating catheter is advanced ovei- it to dilate the entrance tr.lct into the femoral vein and to aid in maneuvering the guide wire into the inferior ven;r cava or the right atrium. The dilating catheter is then removed, leaving the guide {\-ire in place, and the ti-;in\qeptal catheter can be easily .~dvanced over the guide wire through the previoli\]!. dilated entr,iiice tract. thu5 preserving its
The
electrocardiographic
The exercise tolerance test is the most commonly employed stress test for earl) recognition of coronary
with
the
tip for tran~septal placemeiit. and on to the inierior vena cava and right atriiim. This aI50 avoids the problems encountered with maneuvering the tran+ septnl catheter with its oval-type bend through the ilinc vein.
ice
water
test*
In the past 1.5 years, very little study has been done regarding the use of ice water (either by drinking or by immersion) as d provocative test for demonstrating myorardinl isrhemia. In 1973, Wilson and Finch” gave 600 cc. of ice water to 6 normal humaii subjects and they observed transiently increased negativity of the -1‘ wave in Leads II and III. Dowling and Hellerstein, 7 in 1951, gave 800 c.c. of ice water to 34 subjects and they found an increase in ‘I wave negativit!in Leads II, III, and ~VF in patients with and without heart disease. Jt has been observed that cooling of the ml ocardium will result in changes in ventricular repolarization.7 Jt may be assumed that the cooling effect on the in> ocardium may berome more prominent and more prolonged in patient> w-ith coronary disease in view of the myoc~~rdial ischemia. The purpose of this study is to report our findings in the use of ice water as a means of detecting eat-ly coronary artery disease. :\ total of 11 normal healthy hospital employees were used as the control group. The age range of this group was 21 to 69 J ears of age. Of this group, 5 were men and 16 lverc women. All of the control group
Transseptal catheterization aid of a dilating catheter
‘lhe speed and ease of advancing a transseptal catheter to the inferior vena cnva and right atrium can be enhanced by first using a dilating catheter. \\:e make a 60 cm. dilating catheter from gra) i.idnian-Leden material over a 0.045 inch guide wire ,~nd form a Cournand bend near the tip. Once the guide wire has heen placed percutaneouslyinto the right iliac vein, the dilating catheter is advanced ovei- it to dilate the entrance tr.lct into the femoral vein and to aid in maneuvering the guide wire into the inferior ven;r cava or the right atrium. The dilating catheter is then removed, leaving the guide {\-ire in place, and the ti-;in\qeptal catheter can be easily .~dvanced over the guide wire through the previoli\]!. dilated entr,iiice tract. thu5 preserving its
The
electrocardiographic
The exercise tolerance test is the most commonly employed stress test for earl) recognition of coronary
with
the
tip for tran~septal placemeiit. and on to the inierior vena cava and right atriiim. This aI50 avoids the problems encountered with maneuvering the tran+ septnl catheter with its oval-type bend through the ilinc vein.
ice
water
test*
In the past 1.5 years, very little study has been done regarding the use of ice water (either by drinking or by immersion) as d provocative test for demonstrating myorardinl isrhemia. In 1973, Wilson and Finch” gave 600 cc. of ice water to 6 normal humaii subjects and they observed transiently increased negativity of the -1‘ wave in Leads II and III. Dowling and Hellerstein, 7 in 1951, gave 800 c.c. of ice water to 34 subjects and they found an increase in ‘I wave negativit!in Leads II, III, and ~VF in patients with and without heart disease. Jt has been observed that cooling of the ml ocardium will result in changes in ventricular repolarization.7 Jt may be assumed that the cooling effect on the in> ocardium may berome more prominent and more prolonged in patient> w-ith coronary disease in view of the myoc~~rdial ischemia. The purpose of this study is to report our findings in the use of ice water as a means of detecting eat-ly coronary artery disease. :\ total of 11 normal healthy hospital employees were used as the control group. The age range of this group was 21 to 69 J ears of age. Of this group, 5 were men and 16 lverc women. All of the control group