12451
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Kitamura K, Gobel FL, Wang Y. Dissection of the left coronary artery complicating retrograde left heart catheterization. Chest 1970; 57:587-90. [PMID: 5509642 DOI: 10.1378/chest.57.6.587] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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12452
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Amplatz K, Jeffery RF, Gobel FL, Wang Y, Gathman GE, Moller JH, Lucas RV. The freon test. A new sensitive technic for the detection of small cardiac shunts. Circulation 1969; 39:551-6. [PMID: 4888144 DOI: 10.1161/01.cir.39.4.551] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A new, sensitive, qualitative technic is described for detecting small left-to-right and right-to-left circulatory shunts. Advantages over other sensitive shunt detection devices are: (1) the use of a readily available, nonradioactive, nonexplosive, nontoxic gas, namely Freon 22; (2) the ability to sample through standard cardiac catheters as small as 5F; (3) an immediate answer due to recording of the gas concentration in blood; and (4) extremely high sensitivity allowing the detection of the smallest left-to-right and right-to-left shunts.
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12453
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Gobel FL, Andrew DJ, Witherspoon JM, Lillehei RC, Castaneda A, Wang Y. The hemodynamic results of instrumental and digital valvotomy in patients with mitral stenosis. Circulation 1969; 39:317-25. [PMID: 5766801 DOI: 10.1161/01.cir.39.3.317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In order to evaluate the postoperative results from mitral valvotomy when patients were selected according to age, sex, cardiac rhythm, and mode of operation, the mitral valve area (MVA) was determined by cardiac catheterization in 32 patients before and 1 year following closed mitral valvotomy. There was a significantly greater increase in MVA in female patients, younger patients, and patients with sinus rhythm than in males, patients over 45 years of age, and patients with atrial fibrillation. Patients who had an instrumental valvotomy (20 patients) did not have a greater postoperative increase in MVA than patients who had a digital valvotomy (12 patients); however, patients with the largest postoperative MVA had instrumental valvotomy. The incidence of postoperative mitral insufficiency was similar in patients with digital and instrumental valvotomy. Small flecks of mitral valve calcification, as determined by preoperative image-intensification fluoroscopy, did not influence the postoperative MVA.
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12454
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12455
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Gobel FL, Medina JR, Guenter CA, Wang Y. Immediate hemodynamic response of patients with atrioventricular block and cardiac failure to transvenous pacing. Circulation 1969; 39:64-71. [PMID: 4882514 DOI: 10.1161/01.cir.39.1.64] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Immediate hemodynamic improvement in patients with complete heart block occurs when the ventricular rate is increased by electrical pacing. During pacing, there is reduction in the pulmonary artery wedge, right atrial, and left and right ventricular filling pressures. The mean rate of ejection, stroke volume, and stroke work decreased following pacing, whereas the ejection time per minute increased, and dye curves assumed a more normal configuration. Very little change was noted in the resting cardiac output.
The paced heart is able to obtain greater increases in cardiac output, stroke volume, and mean rate of ejection during exercise than when unpaced. In addition, pacing tends to return elevated exercising filling pressures in the right and left ventricles toward normal.
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12456
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Gobel FL, Hawkins HM, Hanson R, Wang Y. Acute myocardial infarction secondary to thromboembolism from a fractured prosthetic aortic valve. Circulation 1968; 38:672-7. [PMID: 5677951 DOI: 10.1161/01.cir.38.4.672] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A case of coronary artery embolism from thrombus in a fracture in an aortic Starr-Edwards prosthesis was documented at necropsy. This 40-year-old white man had replacement of the aortic and mitral valves by ball-valve prostheses 5 years prior to his death. Following surgery, he was able to return to full-time work. He did not return for follow-up for 2 years, and when next seen he had an acute myocardial infarction and left ventricular failure. An embolus to the left anterior descending coronary artery was demonstrated at the postmortem examination. The mitral ball was intact, but the aortic ball had two large fractures which contained thrombi.
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12457
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Lillehei CW, Anderson RC, Wang Y. Clinical and hemodynamic changes after closure of ventricular septal defects. JAMA 1968; 205:822-7. [PMID: 5695504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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12458
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Layman TE, Wang Y. Idiopathic cystic medionecrosis and aneurysmal dilatation of the ascending aorta. Med Clin North Am 1968; 52:1145-56. [PMID: 4233767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12459
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Wang Y. Radioisotope scanning of superior mediastinal masses. THE AMERICAN JOURNAL OF ROENTGENOLOGY, RADIUM THERAPY, AND NUCLEAR MEDICINE 1968; 103:766-71. [PMID: 5677563 DOI: 10.2214/ajr.103.4.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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12460
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Wang Y, Korns ME, Edwards JE. Mycotic aneurysms of the left ventricle and ascending aorta. MINNESOTA MEDICINE 1968; 51:395-403. [PMID: 5694717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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12461
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Edds GT, Kirkham WW, Wang Y, Holden CA. Viability of bovine rumen bacteria. VETERINARY MEDICINE, SMALL ANIMAL CLINICIAN : VM, SAC 1968; 63:50-2. [PMID: 5183529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12462
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Bonnabeau RC, Mantini EL, Wang Y, Lillehei CW. Replacement of the aortic valve with the Starr-Edwards and sutureless (Magovern) prosthesis. Comparative recatherization results. Am J Cardiol 1967; 20:314-23. [PMID: 6072022 DOI: 10.1016/0002-9149(67)90052-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12463
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Dietzman RH, Peter ET, Wang Y, Lillehei RC. Mitral insufficiency in Marfan's syndrome. A case report of surgical correction. Calif Med 1967; 51:650-3. [PMID: 6027037 DOI: 10.1378/chest.51.6.650] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12464
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Jorgensen CR, Zimmerman TS, Wang Y. Serum lactate dehydrogenase elevation in ambulatory cardiac patients. Evidence for chronic hemolysis. Circulation 1967; 35:79-89. [PMID: 6015859 DOI: 10.1161/01.cir.35.1.79] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Activity of total lactate dehydrogenase (LDH) and that of the heat-stable isozyme (LDH-1) was measured by the method of Strandjord and Clayson in the serum of 62 cardiac patients with congenital and valvular heart disease before and after cardiac catheterization and at follow-up examination after cardiac surgery. A universal elevation of both total and heat-stable LDH was found in patients with prosthetic heart valves of several types. Lesser degrees of abnormalities were seen in a number of the patients without prosthetic devices. Some patients had a small increase in serum enzyme activity the day after cardiac catheterization. The evidence presented implicates hemolysis in the production of these abnormalities. It is suggested that all patients with prosthetic valves and a significant percentage of patients with severe hemodynamic abnormalities have chronic, usually compensated, intravascular hemolysis secondary to mechanical damage to red blood cells. These findings must be kept in mind in interpreting serum LDH determinations in patients with valvular prostheses or congenital and valvular heart disease who present with complaints of chest pain.
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12465
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Karnegis JN, Wang Y. Obstruction to left ventricular outflow. Functional and clinical considerations. MINNESOTA MEDICINE 1966; 49:1545-9. [PMID: 5950666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12466
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Karnegis JN, Wang Y. Mitral stenosis. Functional and clinical manifestations. MINNESOTA MEDICINE 1966; 49:1369-73. [PMID: 5966647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12467
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Wang Y. Thyroid scanning using the gamma camera. THE AMERICAN JOURNAL OF ROENTGENOLOGY, RADIUM THERAPY, AND NUCLEAR MEDICINE 1966; 97:869-73. [PMID: 5915274 DOI: 10.2214/ajr.97.4.869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12468
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Wang Y, Kazal LA. Effects of protein fractions on erythrocyte uptakes of I-131-labeled thyroid hormones. THE AMERICAN JOURNAL OF PHYSIOLOGY 1966; 210:715-7. [PMID: 4956012 DOI: 10.1152/ajplegacy.1966.210.4.715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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12469
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12470
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Goldfarb B, Wang Y. Mitral stenosis and left to right shunt at the atrial level. A broadened concept of the Lutembacher syndrome. Am J Cardiol 1966; 17:319-26. [PMID: 5908381 DOI: 10.1016/0002-9149(66)90214-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12471
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Lillehei CW, Gannon PG, Levy MJ, Varco RL, Wang Y. Valve replacement for tricuspid stenosis or insufficiency associated with mitral valvular disease. Circulation 1966; 33:34-42. [PMID: 5901757 DOI: 10.1161/01.cir.33.1.34] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12472
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Girod DA, Raghib G, Adams P, Anderson RC, Wang Y, Edwards JE. Cardiac malformations associated with ventricular septal defect. Am J Cardiol 1966; 17:73-82. [PMID: 5900341 DOI: 10.1016/0002-9149(66)90263-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12473
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Wang Y, Westerman MP, Heinle EW. Spleen-function study with 1-mercuri-2-hydroxypropane labeled with mercury 197. JAMA 1965; 194:1254-6. [PMID: 5897756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12474
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Wang Y, Shea FJ, Rosen JA. Comparison of the accuracy of brain scanning and other procedures used for brain tumor detection. Neurology 1965; 15:1117-9. [PMID: 5295495 DOI: 10.1212/wnl.15.12.1117] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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12475
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Wang Y, Hsu JZ, Chang WC, Cheng LL, Li HS. Partial synthesis of crystalline bovine insulin from synthetic A-chain and natural B-chain. SCIENTIA SINICA 1965; 14:1887-90. [PMID: 5894035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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