PubMed

Are soft echoes really soft? Intravascular ultrasound assessment of mechanical properties in human atherosclerotic tissue.

Hiro T, Leung CY, De Guzman S, Caiozzo VJ, Farvid AR, Karimi H, Helfant RH, Tobis JM.

Am Heart J. 1997 Jan;133(1):1-7.PMID: 9006284 [PubMed - indexed for MEDLINE]Related articles

Timing of surgery for valvular heart disease.

Gray RJ, Helfant RH.

Cardiovasc Clin. 1993;23:209-31. Review. No abstract available. PMID: 8416123 [PubMed - indexed for MEDLINE]Related articles

Fascinating rhythm: a primer on chaos theory and its application to cardiology.

Denton TA, Diamond GA, Helfant RH, Khan S, Karagueuzian H.

Am Heart J. 1990 Dec;120(6 Pt 1):1419-40. Review.PMID: 2248188 [PubMed - indexed for MEDLINE]Related articles

Stable angina pectoris. Risk stratification and therapeutic options.

Helfant RH.

Circulation. 1990 Sep;82(3 Suppl):II66-70. No abstract available. PMID: 2394019 [PubMed - indexed for MEDLINE]Related articles

Postinfarction ventricular tachycardia and fibrillation: reassessing the role of drug therapy and approach to the high risk patient.

Peter CT, Helfant RH.

J Am Coll Cardiol. 1990 Sep;16(3):531-2. No abstract available. PMID: 2387925 [PubMed - indexed for MEDLINE]Related articles

Tumor necrosis factor gene expression in human vascular intimal smooth muscle cells detected by in situ hybridization.

Barath P, Fishbein MC, Cao J, Berenson J, Helfant RH, Forrester JS.

Am J Pathol. 1990 Sep;137(3):503-9.PMID: 1698022 [PubMed - indexed for MEDLINE]Related articlesFree article

Short- and long-term mechanisms of sudden cardiac death in congestive heart failure.

Helfant RH.

Am J Cardiol. 1990 Jun 19;65(23):41K-43K.PMID: 2353668 [PubMed - indexed for MEDLINE]Related articles

Comparative studies of angioscopy and ultrasound for the evaluation of arterial disease.

Siegel RJ, Fishbein MC, Chae J, Helfant RH, Hickey A, Forrester JS.

Echocardiography. 1990 Jul;7(4):495-502.PMID: 10149210 [PubMed - indexed for MEDLINE]Related articles

Induction of insulin-like growth factor I messenger RNA in rat aorta after balloon denudation.

Cercek B, Fishbein MC, Forrester JS, Helfant RH, Fagin JA.

Circ Res. 1990 Jun;66(6):1755-60.PMID: 2188750 [PubMed - indexed for MEDLINE]Related articlesFree article

Intravascular ultrasound cross-sectional arterial imaging.

Siegel RJ, Bessen M, Chae J, Potkin B, Coll G, Fishbein MC, Helfant RH.

Echocardiography. 1990 May;7(3):181-92. Review.PMID: 10171129 [PubMed - indexed for MEDLINE]Related articles

Detection and localization of tumor necrosis factor in human atheroma.

Barath P, Fishbein MC, Cao J, Berenson J, Helfant RH, Forrester JS.

Am J Cardiol. 1990 Feb 1;65(5):297-302.PMID: 2405620 [PubMed - indexed for MEDLINE]Related articles

Effect of postextrasystolic potentiation on systolic bulging of ischemic myocardium.

Noma S, Askenase AD, Helfant RH.

J Am Coll Cardiol. 1989 Mar 1;13(3):723-9.PMID: 2465332 [PubMed - indexed for MEDLINE]Related articles

A non-linear elastic model of contraction of ischaemic segments.

Akaishi M, Schneider RM, Seelaus PA, Klein LW, Agarwal JB, Helfant RH, Weintraub WS.

Cardiovasc Res. 1988 Dec;22(12):889-99.PMID: 3256429 [PubMed - indexed for MEDLINE]Related articles

The effect of ionic contrast medium on the movement of acutely ischemic and nonischemic canine myocardium.

Noma S, Askenase AD, Agarwal JB, Helfant RH.

Am Heart J. 1988 Dec;116(6 Pt 1):1536-41.PMID: 3195438 [PubMed - indexed for MEDLINE]Related articles

Smoking and coronary artery disease.

Shah PK, Helfant RH.

Chest. 1988 Sep;94(3):449-52. No abstract available. PMID: 3409719 [PubMed - indexed for MEDLINE]Related articlesFree article

Augmentation of contraction in remote nonischemic zone during acute ischemia.

Noma S, Askenase AD, Weintraub WS, Klein LW, Agarwal JB, Helfant RH.

Am J Physiol. 1988 Aug;255(2 Pt 2):H301-10.PMID: 3407791 [PubMed - indexed for MEDLINE]Related articles

Surgical revascularization of left main coronary artery stenosis: determinants of perioperative and long-term outcome in the 1980s.

Gomberg J, Klein LW, Seelaus P, Parr GV, Agarwal JB, Helfant RH.

Am Heart J. 1988 Aug;116(2 Pt 1):440-6.PMID: 3261122 [PubMed - indexed for MEDLINE]Related articles

[Myocardial distribution of C-14 lidocaine and C-14 propafenone in relation to regional myocardial blood flow in a model of chronic-phase myocardial infarct]

Naccarella F, Agarwal JB, Weintraub WS, Bracchetti D, Ambrosioni E, Helfant RH.

Cardiologia. 1988 May;33(5):453-8. Italian. No abstract available. PMID: 3167892 [PubMed - indexed for MEDLINE]Related articles

The resolution of coronary collaterals after successful percutaneous transluminal coronary angioplasty.

Klein LW, Agarwal JB, Helfant RH.

Am Heart J. 1988 Mar;115(3):554-8.PMID: 2964184 [PubMed - indexed for MEDLINE]Related articles

Quantification of absolute luminal diameter by computer-analyzed digital subtraction angiography: an assessment in human coronary arteries.

Rosenberg MC, Klein LW, Agarwal JB, Stets G, Hermann GA, Helfant RH.

Circulation. 1988 Feb;77(2):484-90.PMID: 3276411 [PubMed - indexed for MEDLINE]Related articles

Contractile function and reserve during acute ischaemia in the canine lateral border zone.

Askenase AD, Naccarella FF, Weintraub WS, Klein LW, Agarwal JB, Helfant RH.

Cardiovasc Res. 1988 Feb;22(2):122-30.PMID: 3167934 [PubMed - indexed for MEDLINE]Related articles

The effect of changes in afterload on systolic bulging.

Noma S, Askenase AD, Agarwal JB, Helfant RH.

Circulation. 1988 Jan;77(1):221-6.PMID: 3335069 [PubMed - indexed for MEDLINE]Related articles

[Postextrasystolic potentiation as an index of myocardial contractile reserve in coronary stenosis with various degrees of coronary flow reduction]

Naccarella F, Weintraub WS, Agarwal JB, Bracchetti D, Ambrosioni E, Helfant RH.

Cardiologia. 1988 Jan;33(1):55-60. Italian. No abstract available. PMID: 2452690 [PubMed - indexed for MEDLINE]Related articles

Chronic myocardial ischemia and left ventricular function.

Iskandrian AS, Heo J, Helfant RH, Segal BL.

Ann Intern Med. 1987 Dec;107(6):925-7. No abstract available. PMID: 3500662 [PubMed - indexed for MEDLINE]Related articles

Prognosis of symptomatic coronary artery disease in young adults aged 40 years or less.

Klein LW, Agarwal JB, Herlich MB, Leary TM, Helfant RH.

Am J Cardiol. 1987 Dec 1;60(16):1269-72.PMID: 2961240 [PubMed - indexed for MEDLINE]Related articles

Factors affecting exercise left ventricular performance in patients free of obstructive coronary artery disease.

Iskandrian AS, Heo J, Askenase A, Helfant RH, Segal BL.

Am J Cardiol. 1987 Nov 15;60(14):1173-6. No abstract available. PMID: 3687748 [PubMed - indexed for MEDLINE]Related articles

Magnetic resonance imaging to evaluate patency of aortocoronary bypass grafts.

Rubinstein RI, Askenase AD, Thickman D, Feldman MS, Agarwal JB, Helfant RH.

Circulation. 1987 Oct;76(4):786-91.PMID: 3498558 [PubMed - indexed for MEDLINE]Related articles

Thallium imaging with single photon emission computed tomography.

Iskandrian AS, Heo J, Askenase A, Segal BL, Helfant RH.

Am Heart J. 1987 Oct;114(4 Pt 1):852-65. Review.PMID: 3310567 [PubMed - indexed for MEDLINE]Related articles

Dynamic coronary stenosis behavior in classic angina pectoris: active process or passive response?

Klein LW, Segal BL, Helfant RH.

J Am Coll Cardiol. 1987 Aug;10(2):311-3. No abstract available. PMID: 3110238 [PubMed - indexed for MEDLINE]Related articles

An optimal electrocardiographic lead system for post-cardiac surgical monitoring.

Gomberg J, Sisk P, Parr GV, Helfant RH.

Am J Cardiol. 1987 Jun 1;59(15):1417-8. No abstract available. PMID: 3591700 [PubMed - indexed for MEDLINE]Related articles

Role of cardiac testing in an era of proliferating technology and cost containment.

Helfant RH, Klein LW, Agarwal JB.

J Am Coll Cardiol. 1987 May;9(5):1194-8. No abstract available. PMID: 3571758 [PubMed - indexed for MEDLINE]Related articles

Improved survival with coronary bypass surgery in patients with three-vessel coronary disease and abnormal left ventricular function. Matched case-control study in patients with potentially operable disease.

Vigilante GJ, Weintraub WS, Klein LW, Schneider RM, Seelaus PA, Parr GV, Lemole G, Agarwal JB, Helfant RH.

Am J Med. 1987 Apr;82(4):697-702.PMID: 3551604 [PubMed - indexed for MEDLINE]Related articles

Assessment of coronary artery stenoses by digital subtraction angiography: a pathoanatomic validation.

Klein LW, Agarwal JB, Rosenberg MC, Stets G, Weintraub WS, Schneider RM, Hermann G, Helfant RH.

Am Heart J. 1987 Apr;113(4):1011-7.PMID: 3551569 [PubMed - indexed for MEDLINE]Related articles

Absence of coronary vascular reserve in myocardium distal to a fixed coronary stenosis.

Klein LW, Askenase AD, Weintraub WS, Akaishi M, Mercier RJ, Schneider RM, Agarwal JB, Helfant RH.

Cardiovasc Res. 1987 Feb;21(2):99-106.PMID: 3664547 [PubMed - indexed for MEDLINE]Related articles

Myocardial segment motion during regional ischemia--regional contraction and relaxation.

Akaishi M, Weintraub WS, Helfant RH.

Jpn Circ J. 1987 Jan;51(1):74-82.PMID: 3586311 [PubMed - indexed for MEDLINE]Related articles

The significance of underlying coronary stenosis for recovery of myocardial function after transient ischemia in the dog.

Akaishi M, Weintraub WS, Mercier RJ, Agarwal JB, Schneider RM, Helfant RH.

Am Heart J. 1986 Dec;112(6):1226-31.PMID: 3788769 [PubMed - indexed for MEDLINE]Related articles

The Q-wave and non-Q wave myocardial infarction: differences and similarities.

Klein LW, Helfant RH.

Prog Cardiovasc Dis. 1986 Nov-Dec;29(3):205-20. Review. No abstract available. PMID: 3538175 [PubMed - indexed for MEDLINE]Related articles

Medical and surgical survival in coronary artery disease in the 1980s.

Vigilante GJ, Weintraub WS, Klein LW, Schneider RM, Seelaus PA, Parr GV, Agarwal JB, Helfant RH.

Am J Cardiol. 1986 Nov 1;58(10):926-31.PMID: 3490782 [PubMed - indexed for MEDLINE]Related articles

Heterogeneous fate of the left ventricle after acute myocardial infarction.

Weintraub WS, Helfant RH.

J Am Coll Cardiol. 1986 Oct;8(4):986-90. No abstract available. PMID: 3760373 [PubMed - indexed for MEDLINE]Related articles

Videodensitometric quantitation of aortic regurgitation by digital subtraction aortography using a computer-based method analyzing time-density curves.

Klein LW, Agarwal JB, Stets G, Rubinstein RI, Weintraub WS, Helfant RH.

Am J Cardiol. 1986 Oct 1;58(9):753-6.PMID: 3532753 [PubMed - indexed for MEDLINE]Related articles

Effects of previous myocardial infarction on measurements of reactive hyperemia and the coronary vascular reserve.

Klein LW, Agarwal JB, Schneider RM, Hermann G, Weintraub WS, Helfant RH.

J Am Coll Cardiol. 1986 Aug;8(2):357-63.PMID: 3734256 [PubMed - indexed for MEDLINE]Related articles

Prognostic significance of severe narrowing of the proximal portion of the left anterior descending coronary artery.

Klein LW, Weintraub WS, Agarwal JB, Schneider RM, Seelaus PA, Katz RI, Helfant RH.

Am J Cardiol. 1986 Jul 1;58(1):42-6.PMID: 3728330 [PubMed - indexed for MEDLINE]Related articles

Multistage analysis of exercise radionuclide angiography in coronary artery disease.

Schneider RM, Weintraub WS, Klein LW, Seelaus PA, Katz RI, Agarwal JB, Helfant RH.

Am J Cardiol. 1986 Jul 1;58(1):36-41.PMID: 3728329 [PubMed - indexed for MEDLINE]Related articles

Analysis of phases of contraction during graded acute myocardial ischemia.

Akaishi M, Schneider RM, Mercier RJ, Agarwal JB, Helfant RH, Weintraub WS.

Am J Physiol. 1986 May;250(5 Pt 2):H778-85.PMID: 3706553 [PubMed - indexed for MEDLINE]Related articles

Hypokalemia and arrhythmias.

Helfant RH.

Am J Med. 1986 Apr 25;80(4A):13-22.PMID: 3706349 [PubMed - indexed for MEDLINE]Related articles

Rate of left ventricular functional recovery by radionuclide angiography after exercise in coronary artery disease.

Schneider RM, Weintraub WS, Klein LW, Seelaus PA, Agarwal JB, Helfant RH.

Am J Cardiol. 1986 Apr 15;57(11):927-32.PMID: 3962894 [PubMed - indexed for MEDLINE]Related articles

Digital ventriculographic demonstration of ventricular septal defect after myocardial infarction.

Klein LW, Weinberg FM, Agarwal JB, Helfant RH.

Am Heart J. 1986 Apr;111(4):791-2. No abstract available. PMID: 3513508 [PubMed - indexed for MEDLINE]Related articles

Prospective evaluation of the severity of coronary artery disease with exercise radionuclide angiography and electrocardiography.

Weintraub WS, Schneider RM, Seelaus PA, Wiener DH, Agarwal JB, Helfant RH.

Am Heart J. 1986 Mar;111(3):537-42.PMID: 3953363 [PubMed - indexed for MEDLINE]Related articles

Analysis of systolic bulging. Mechanical characteristics of acutely ischemic myocardium in the conscious dog.

Akaishi M, Weintraub WS, Schneider RM, Klein LW, Agarwal JB, Helfant RH.

Circ Res. 1986 Feb;58(2):209-17.PMID: 3948340 [PubMed - indexed for MEDLINE]Related articlesFree article

Value of noninvasive techniques in assessing prognosis following acute myocardial infarction.

Klein LW, Helfant RH.

Cardiovasc Clin. 1986;17(1):289-300. No abstract available. PMID: 3768923 [PubMed - indexed for MEDLINE]Related articles