ISSN:0098-6569    

DOI:10.1002/ccd.1810100602

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100603

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractTo clarify the etiology of elevations in plasma MB creatine kinase (CK) in patients after cardiac catheterization, we studied 32 consecutive patients undergoing cardiac catheterization and coronary arteriography. Total CK and MB CK were within the normal range in all patients prior to catheterization. Total CK activity rose from a mean of 61.46 ± 33.8 IU/1 (SD) to 141 ± 105 in the first sample after catheterization (p<.005) and 121.6 ± 92.4 in the second catheterization sample (p<.0005). The MB CK activity also rose from a mean of 3.2 ± 1.6 IU/1 prior to catheterization to a maximum value of 5.0 ± 2.9. The mean increase in MB CK, though statistically significant (p12) likely due to cardiac injury. Thus, our data document that marked elevations in MB CK after cardiac catheterization are unusual. They likely represent cardiac muscle injury rather than MB CK released due to skeletal muscle injury induced by the catheterization it

ISSN:0098-6569    

DOI:10.1002/ccd.1810100604

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractThe determinants of outcome after left ventricular aneurysmectomy are not well understood. We analyzed preoperative follow‐up information on 38 patients who had undergone left ventricular aneurysmectomy. At a mean follow‐up of 39 months (range 6 to 68), 25 patients (66%) improved by at least one functional class (New York Heart Association) (Group I), and 13 patients (Group II) either died (n: 8) or had persistent congestive heart failure (n: 5). Patients in Group I had significantly higher left ventricular ejection fraction before surgery than patients in Group II (38 ± 12% vs. 29 ± 14% P<0.04). The volume of the aneurysm at end‐diastole was smaller among patients in Group I than Group II (42 ± 32 ml vs. 73 ± 47 ml, P<0.04).The contractile indices of the nonaneurysm segment, contractile segment ejection fraction, basilar half ejection fraction, and basilar fractional area shortening were not significantly different between the two groups. There was no difference between the two groups in the preoperative left ventricular end‐diastolic pressure, cardiac index, pulmonary artery wedge pressure, pulmonary artery pressure, extent of coronary artery disease, number of bypass grafts inserted, or aortic cross‐clamp times.Conclusion: (1) The ejection fraction and volume of the aneurysm are more important predictors of outcome after left ventricular aneurysmectomy than the contractile indices of the nonaneurysmal left ventricle and (2) symptomatic improvement occurs in 66% of patients after left ventricular a

ISSN:0098-6569    

DOI:10.1002/ccd.1810100605

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractInterobserver reproducibility of single plane contrast angiographic measurements of end‐diastolic volume (EDV/m2), end‐systolic volume (ESV/m2), stroke volume (SV m2), and ejection fraction (EF) was studied in two groups of patients. The first group (n = 42) was an unselected, consecutive series of patients in which the calculations of volume were performed manually, representing day‐to‐day results from a clinical quantitative angiographic laboratory. The second group (n = 31) was selected on the basis of optimal filming technique and volume calculations were performed digitally with the aid of a computer. This group characterizes the reproducibility that could be attained for investigational purposes. In the selected group, interobserver reproducibility of four regional ejection fractions was determined. The correlation coefficient (r), standard error of the estimate (Sy.x), average difference, and 95% confidence limits are given. Measurement variation accounted for 9–15% of the variance in this study for EDV/m2(consecutive series), indicating that caution is needed when relating contrast angiographic measurements to other (e.g., noninvasive) measures of volume by simple linear r

ISSN:0098-6569    

DOI:10.1002/ccd.1810100606

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractThe change in cardiac output during upright exercise in patients with aortic regurgitation (AR) is not well known. We measured left ventricular (LV) ejection fraction (EF) and volume, regurgitant fraction (RF), total cardiac output and forward cardiac output at rest, and peak upright exercise by means of radionuclide angiography in ten normal subjects and 15 patients with AR.In the normal subjects, there was no significant change in the end‐diastolic volume but there was a significant decrease in the end‐systolic volume (p = 0.0001) and a significant increase in EF (p = 0.0001). The increase in cardiac output during exercise was due to increases in both stroke volume and heart rate.In patients with AR, there was a significant decrease during exercise in RF (53 ± 15% at rest, and 45 ± 15% during exercise; p = 0.03), and in end‐diastolic and endsystolic volume (p = 0.02, and p = 0.003, respectively). The EF increased during exercise (p = 0.003). The total stroke volume did not change (68 ± 19 ml/m2at rest, and 67 ± 14 ml/m2during exercise; p, NS).Thus, in patients with AR, individual changes in EF, RF, and volume are quite variable, but as a group a decrease in RF and an increase in heart rate contribute to the increase in forward flow. The total stroke volume may not increase during exercise, despite an increase in EF and a decrease in end‐systolic volume because of a concomitant decrease in end‐dia

ISSN:0098-6569    

DOI:10.1002/ccd.1810100607

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractCoronary artery aneurysms have been reported to occur in 1–2% of most large angiographic series. However, aneurysms of the left main coronary artery (LMCA) are extremely rare. Only eight previous cases of LMCA aneurysms have been reported, and only one of these cases was felt to be atherosclerotic in etiology. The clinical findings in three hypertensive females with LMCA aneurysm diagnosed at angiography are presented, along with a review of the literatur

ISSN:0098-6569    

DOI:10.1002/ccd.1810100608

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractThe percutaneous internal jugular vein approach is now a commonly performed procedure for central venous catheterization. Iatrogenic arteriovenous fistulae are a very infrequent complication. We report an asymptomatic subclavian artery to internal jugular vein fistula following two percutaneous internal jugular vein catheterization attempts.

ISSN:0098-6569    

DOI:10.1002/ccd.1810100609

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

摘要:

AbstractA 44‐year‐old white male who developed third‐degree heart block during cardiac catheterization is presented. Right heart catheterization precipitated bifascicular block, right bundle branch block with left posterior hemiblock, and resulted in thirddegree heart block during the left heart procedure. It is recommended that multiple electrocardiographic lead monitoring be considered during cardiac catheterization in order to recognize more easily high‐risk conduction disturbances, ie a bifascicular block pattern with frontal plane axis

ISSN:0098-6569    

DOI:10.1002/ccd.1810100610

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100611

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1984

数据来源: WILEY