Instytucje i tematyka badań naukowych

 Medical Academy, Warsaw, Poland (IVth Dept. Int. Med, Prof. Z. Askanas) –

- Vectorcardiography - clinical - see

- “Micro-vectorcardiography” - experimental - see

- DC and very low frequency components of the ECG – experimental- see

Paris and Suresnes (Dr Renaud Koechlin); Marseille (Prof. Andre Jouve), France

- vectorcardiography, trans-telephone transmission of the ECG

Geneva, Switzerland (Prof. P.W. Duchosal) – clinical vectorcardiography

Tulane Med. School, New Orleans , LA, USA (Prof. G.E. Burch) –

- Vectorcardiography - see

- Myocardial activation mapping in myocardial ischemia - see

Lovelace Clinic, Bataan Memorial Methodist Hospital, Albuquerque, N.M. –

- clinical training

- D.C. ECG recordings - experimental - see

- “Micro-vectorcardiography” - experimental - see

Cedars-Sinai Med. Ctr., Los Angeles. CA (Prof. E. Corday) –

- Atrial flutter and fibrillation - experimental - see

Bockus Research Institute, Graduate Hosp., Univ. of Pennsylvania (Prof. L.H. Peterson)

- Nervous control of the intrinsic cardiac pacemaker - experimental - see

Veterans Administration Hosp., Wilmington, DE – (WJW – Chief of Cardiology) - 

- new, catheterization laboratory - clinical

- new, echocardiography laboratory - clinical

- new, pacemaker clinic - clinical - see

Sinai Hospital, Wayne State Univ., Detroit, MI - (WJW - Assoc. Prof. Med.) –

- Intra-aortic ballon pumping (IABP) - clinical and experimental - see

- Dynamic aortic patch - clinical and experimental - see

- Myocardal ischemia and IABP - experimental

- see (1)

- see (2)

- Noninvasive external recording of S-A and His activity - clinical - see

- Coronary angioplasty (PTCA) – clinical - see (in preparation)

Research areas and publications

http://www.labmeeting.com/papers/author/wajszczuk-w

Vectorcardiography - Medical Academy, Warsaw, Poland (1954-1964) - see

“Micro”-vectorcardiography (1962-1964) - see

Application of the Vectorcardiographic Method to the Analysis of the Spread of Activation in Small Portions of the Heart Muscle. Waldemar J. Wajszczuk. Proceedings of the Symposium on Biomedical Engineering, Milwaukee, Wisconsin, June 23-25, 1966, vol. I, Cardiovscular Physiology, XVII-3, pp. 373-377.

D.C component of the epicardial ECG (1962-1964) - see

A Method for Experimental Recording of the D.C. and Very Low Frequency Components of the Electrocardiogram. Waldemar J. Wajszczuk and Józef  K. Cywinski. Engineering in Medicine and Biology, Proceedings of the 19^th Annual Conference, San Francisco, CA, 17 November, 1966, p. 245.

The recording of D.C. and very low frequency components of ECG signals from epicardial leads. Cywiński JK, Wajszczuk WJ. Med Biol Eng. 1966 Mar; 4(2):179-83.

Observations on D.C. and very low frequency components of the electrocardiogram.Wajszczuk WJ, Cywinski JK. Proc Soc Exp Biol Med. 1966 Oct;123(1):42-7.

Vectorcardiography - Tulane Med. School, New Orleans, LA, USA (1960-1962) - see

The T sE-loop in congenital ventricular septal defect. BURCH GE, WAJSZCZUK WJ. Am J Med Sci. 1962 Jul;244:75-84.

Analysis of the TsE loop in normal subjects of different ages. WAJSZCZUK WJ, BURCH GE. Am J Cardiol. 1962 Oct;10:507-13.

The TsE loop in congenital atrial septal defect and persistent atrioventricular canal. BURCH GE, WAJSZCZUK WJ. Am Heart J. 1962 Nov;64:600-9.

The TsE loop in tetralogy of Fallot. BURCH GE, WAJSZCZUK WJ. Am J Cardiol. 1963 Jan;11:54-60.

The TsE-loop in isolated congenital patent ductus arteriosus. BURCH GE, WAJSZCZUK WJ. South Med J. 1963 May;56:557-60.

Experimental epicardial and intramyocardial mapping - Tulane Med. School, New Orleans, LA (1964/5)  - see

Spread of activation in the anterolateral papillary muscle of the left ventricle of the dog under normal and pathologic conditions. Burch GE, Wajszczuk WJ, Cronvich JA. Am Heart J. 1970 Jun;79(6):769-88.

Pacemakers – Lovelace Clinic,  Albuquerque, NM; V.A. Hospital, Wilmington, DE, Sinai Hosp. Detroit, MI (1965-1975) - see

Deactivation of a demand pacemaker by transurethral electrocautery. Wajszczuk W J; Mowry F M; Dugan N L. The New England journal of medicine, (1969 Jan 2) Vol. 280, No.1, pp. 34-5.

Simulated diagnostic patterns of artificial cardiac pacemaker failure; experimental study. Joseph K. Cywinski and Waldemar J. Wajszczuk. Presented at the Fifth Annual Meeting (Proceedings) of the Association for the Advancement of Medical Instrumentation, Boston, Massachusetts, March 23-25, 1970
 
Importance of oscilloscopic analysis of pacemaker pulse waveshape in pacemaker follow-up. (Abstract). Wajszczuk, Waldemar J. and Joseph K. Cywinski, Medical Instrumentation 7: 83, 1973

Electromechanical suppression of a demand pacemaker associated with electrode perforation. Rubenfire M, Timmis H, Freed P, Evangelista JL, Ginsberg H, Wajszczuk WJ.
J. Electrocardiol. 1973;6(4):367-71.

Implication of a persistent left superior vena cava in transvenous pacemaker therapy and cardiac hemodynamic monitoring. Rubenfire M, Evangelista J, Wajszczuk WJ, Kantrowitz A. Chest. 1974 Feb;65(2):145-7.

Analysis of pacemaker pulse-wave shape. Basic principles and simulated study of  malfunction. Waldemar J. Wajszczuk and Joseph K. Cywinski. Bulletin, Sinai Hospital of Detroit. Vol. 23, No 1, January 1975.  

D.C. (direct current) cardiac potentials – Warsaw, Albuquerque, NM (1962-1966) - see

A Method for Experimental Recording of the D.C. and Very Low Frequency Components of the Electrocardiogram. Waldemar J. Wajszczuk and Józef  K. Cywinski. Engineering in Medicine and Biology, Proceedings of the 19^th Annual Conference, San Francisco, CA, 17 November, 1966, p. 245.

The recording of d.c. and very low frequency components of ECG signals from epicardial leads. Józef K. Cywiński and Waldemar J. Wajszczuk Medical and Biological Engineering and Computing, Volume 4, Number 2 / March, 1966

Observations on D. C. and Very Low Frequency Components of the Electrocardiogram. Waldemar J. Wajszczuk and Józef K. Cywinski. Exp. Biol. Med. 123(1): 42—47; Volume 123 Number 1, October 1966

Experimental Atrial Flutter – Cedars-Sinai Med. Ctr., Los Angeles, CA (1967) - see

New evidence of dual mechanism of electrical activation in experimentally induced atrial flutter. Waldemar J. Wajszczuk and Eliot Corday. Actas del VI Congreso Europeo de Cardiologia, Madrid, Spain, 1972. (Published by Editorial Paz Montalvo, Madrid, 1974, pp. 494-499).

Nervous control of the intrinsic cardiac pacemaker - Bockus Research Institute, Graduate Hosp., Univ. of Pennsylvania (1968-1969) - see

An analoque of the nervous control of intrinsic cardiac pacemaker. J.K. Cywinski, A.C.K. Kutty, W.J. Wajszczuk. Proceedings - 8th ICMBE - Palmer House, Chicago, IL; July 20-25, 1969; Session 20-5, Wednesday, July 23, 1969 - Modeling, Cardiovascular System.

Autonomic Nervous Control of the Intrinsic Cardiac Pacemaker and its electronic Analogue simulator. J.K. Cywinski, W.J. Wajszczuk, A.C.K. Kutty. In The nervous system and electric currents, vol. 2, Edited by Norman L. Wulfsohn and Anthony Sances, Jr.; Plenum Press, 1971, pp. 35-45.

Cardiac Assist Devices - (IABP and other, experimental and clinical) – Sinai Hospital, Detrot, MI (1971-1997)

Experimental Acute Myocardial Ischemia and Chronic Myocardial Infarction – see

Natural history of acute myocardial ischemia: electrocardiographic epicardial mapping and nitroblue tetrazolium studies. Waldemar J. Wajszczuk, Jacek Przybylski, Ryszard J. Zochowski, Edna A. Elfont, Joseph P. Roszka and Melvyn Rubenfire. Progress in Electrocardiology. Edited by Peter W. Macfarlane. Pitman Medical Publ. Co., Kent, England, 1979, pp. 220-224.

Epicardial ST-segment mapping in acute myocardial ischemia. Examples of coincidental experimental interventions which may affect interpretation. Waldemar J. Wajszczuk, Jacek Przybylski, Grzegorz Sedek, Ryszard Jacek Zochowski, Tadeusz Palko, Albert Whitty, and Melvyn Rubenfire. Models and Measurements of the Cardiac Electric Field. Edited by E. Schubert, Plenum Publishing Corporation, 1982, pp. 149-163.

Natural history of experimental myocardial ischemia. Observations in acute and chronic studies. Waldemar J. Wajszczuk, Ryszard Jacek Zochowski, Jacek Przybylski, Nicholas Z. Kerin, and Melvyn Rubenfire. Models and Measurements of the Cardiac Electric Field. Edited by E. Schubert, Plenum Publishing Corporation, 1982, pp. 165-173.

IABP in Myocardial Ischemia and Infarction – see

Demonstration of lack of persistence of effectiveness of intra-aortic balloon pumping of short duration in acute myocardial ischemia.  Sedek GS, Zochowski RJ, Wajszczuk WJ, Whitty AJ, Kiso I, Freed PS, Moskowitz MS, Kantrowitz A, Rubenfire M. Trans Am Soc Artif Intern Organs. 1975; 21: 555-65.

Intra-aortic balloon pumping: Experimental relationships between occlusivity and effectiveness. Wajszczuk, W.J., Sedek, G.S., Whitty, A., Kiso, I., Freed. P.S., Moskowitz, M.S., Kantrowitz, A. and Rubenfire, M. Med. Instr., 9:67, 1975.

Intra-aortic balloon pumping in myocardial ischemia: The effect of pumping duration and delay. Zochowski, RJ, Wajszczuk WJ, Przybylski J, Sedek, GS, Kantrowitz A, Rubenfire  M. Trans Am Soc Artif Intern Organs. 1977, 23: 95-101.

Intra-aortic ballon pumping during acute myocardial ischaemia – effects of delaying initiation. Jacek Przybylski, Waldemar J Wajszczuk, Ryszard J Zochowski, Mitchell S Moscowitz, Adrian Kantrowitz and Melvyn Rubefire. Progress in Electrocardiology. Edited by Peter F. Macfarlane. Pitman Medical. Publ. Co., Kent, England. 1979

IABP and Reperfusion – see

Reduction of adverse effects of post-ischaemic reperfusion by intra-aortic balloon pumping: electrocardiographic epicardial mapping and nitroblue terazolium studies. Zochowski, Ryszard J., Wajszczuk, Waldemar J., Sedek, Grzegorz S., Elfont, Edna A., Roszka, Joseph P. and Rubenfire, Melvyn. Progress in Electrocardiology, Edited by Peter W. Macfarlane. Pitman Medical Publ. Co., Kent, England 1979, pp. 473-478.  

Zochowski RJ, Wajszczuk W.  Harmful effect of coronary reperfusion after 5 and 8 hours of experimental myocardial infarct in dogs. Protective role of intra-aortic balloon pumping. Kardiologia Polska. 1981; 24(4):305-14.

IABP and Chronic Myocardial Infarction – see 

Experimental demonstration of the ability of intra-aortic balloon pumping to reduce the infarct size. (Abstract, 26^th Annual Scientific Sessions of the American College of Cardiology). Wajszczuk, W.J., Zochowski, R.J., Sedek, G., Elfont, E.E., Cascade, P., Roszka, J.P., Przybylski, J., Rubenfire, M. and Kantrowitz, A. Am. J. Cardiol., 39: 259, 1977.

Microangiographic demonstration of increased blood flow to areas of myocardial infarction during intraaortic balloon pumping. (Abstract, 43^rd Annual Scientific Assembly of the American College of Chest Physicians, Oct. 30 – Nov. 3, 1977). Cascade, P.N., Wajszczuk, W.J., Kerin. N.Z. and Rubenfire, M., Chest 72, (3), 396, 1977.

Modification of the ultrastructure of myocardium adjacent to chronically infarcted areas by the intra-aortic ballon pump (IABP). Roszka, Joseph P., Elfont, Edna A., Kobernick, Sidney D., Zochowski, R.J. and Wajszczuk, W.J. Micron,1976, vol 7: 293-295, Pergamon Press, Printed in Great Britain.

Other Cardiac Assist Devices – see

Ventricular performance following ablation and prosthetic replacement of right ventricular myocardium. Sawatani, S; Mandell, G; Kusaba, E; Schraut, W; Cascade, P; Wajszczuk, W J; Kantrowitz, A. Trans Am Soc Artif Intern Organs. 20 B: 629-36, 1974.

Long-term in vivo testing of an auxiliary ventricle. Kiso I, Schraut W, Wajszczuk W, Moskowitz MS, Freed P, Kantrowitz A. Transactions - American Society for Artificial Internal Organs. 1974; 20 B:637-42.

SIMULTANEOUS   INTRA-VENTRICULAR   AND   INTRA-AORTIC COUNTERPULSATION   IN   TREATMENT   OF   EXPERIMENAL  CARDIOGENIC SHOCK. R. J. Zochowski, M. J. Stopczyk, W. Wajszczuk. Kardiologia Polska, vol. 21, No. 4, 349-357, 1978

IABP Assistance – Clinical - see

Initial Clinical Experience with a New Permanent Mechanical Auxiliary Ventricle: The Dynamic Aortic Patch. Kantrowitz, Adrian, Joseph S. Krakauer, Melvyn Rubenfire, Dov Jaron, Paul S. Freed, W. Welkowitz, Philip N. Cascade, Waldemar J. Wajszczuk, Marc Lipsius, M. Ciborski, Steven J. Phillips, and M. T. Hayden. Transactions - American Society for Artificial Internal Organs 18 (1972): 159-167

GOLD VOLUME OF ASAIO JOURNAL 

(American Society of the Artificial Internal Organs)        

 

List of Best and Most Important ASAIO Papers (Draft)

Cardiopulmonary Bypass for Cardiac Surgery

Cardiac Assist Devices

Kantrowitz, A., Krakauer, J., Rubenfire, M., Jaron D., Freed, P.S., Welkowitz, W., Cascade, P., Wajszczuk, W.J., Lipsius, M., Ciborski, M., Phillips, S.J., Hayden, M.T.: Initial clinical experience with a new permanent mechanical auxiliary ventricle: The dynamic aortic patch. Trans Amer Soc Artif Int Organs, 1972;18:159-67

Treatment of Cardiogenic shock by Intraaortic Balloon Pumping. Results in 42 patients. A. Aris, J. Krakauer, S. Phillips, M. Ciborski, W .J. Wajszczuk, M. Rubenfire, Dov Jaron and A. Kantrowitz.. Actas del VI Congreso Europeo de Cardiologia, Madrid, Spain, 1972, (Published by Editorial Paz Montalvo, Madrid,  pp. 971-972, 1974).

Intra-aortic phase-shift balloon pumping. Clinical applications. Aris A, Krakauer J, Phillips SJ, Ciborski MG, Rubenfire M, Wajszczuk WJ, Kantrowitz A. J Cardiovasc Surg (Torino). 1973;Spec No:647-50.

Current indications for mechanical circulatory assistance on the basis of experience with 104 patients. (abstr) Wajszczuk WJ, Krakauer J, Rubenfire M, Ciborsky M, Malinowski E, Kantrowitz A: Am J Cardiol 33: 176, 1974

Neurological Abnormalities in the Leg(s) After Use of Intraaortic Balloon Pump. Honet, Joseph C., Waldemar J. Wajszczuk, Melvyn Rubenfire, Adrian Kantrowitz, and James A. Raikes. Archives of Physical Medicine and Rehabilitation 56, (August 1975): 346-352.

Patient Selection for Cardiac Surgery in Left Ventricular Power Failure.  Philip N. Cascade, MD; Waldemar J. Wajszczuk, MD; Melvyn Rubenfire, MD; Stewart E. Pursel, MD; Adrian Kantrowitz, MD.  (Arch Surg 110 (11):1363-1367, 1975)

Physiologic and angiographic evaluation of severe left ventricular power failure to determine feasibility of cardiac surgery. Cascade PN, Wajszczuk WJ, Rubenfire M, Pursel S, Kantrowitz A. J Cardiovasc Surg (Torino). 1976 Jan-Feb;17(1):88.

The chest X-ray in acute left ventricular power failure: an aid to determining prognosis of patients supported by intraaortic balloon pumping.  Philip N. Cascade, Adrian Kantrowitz, Waldemar J. Wajszczuk and  Melvyn Rubenfire. Am J Roentgenol 116:1147-1154, 1976

Intraaortic Balloon Pumping - 1967 Through 1982: Analysis of Complications in 733 Patients.  Kantrowitz, Adrian, Tarik Wasfie, Paul S. Freed, Melvyn Rubenfire, Waldemar J. Wajszczuk, and M. Anthony Schork. "The American Journal of Cardiology 57 (15 April 1986): 976-983

Risks associated with intraaortic balloon pumping in patients with and without diabetes mellitus. Wasfie, T : Freed, P S : Rubenfire, M : Wajszczuk, W : Reimann, P : Brozyna, W : Schork, M A : Kozlowski, J : Kantrowitz, A.  Am-J-Cardiol. 1988 Mar 1; 61(8): 558-62 

Non-invasive, external recording from the cardiac conduction system. (Signal averaging technique) – Sinai Hospital, Detroit, MI (1973-1979)  - see

Noninvasive Real-Time Recording of Cardiac Conduction System Activity. Instrumentation and Method Used in QRS-Triggered Averaging. W. Wajszczuk, T. Palko, M.J. Stopczyk, T. Bauld, M.S. Moskowitz, J. Przybylski, R.J. Zochowski, and M. Rubenfire. Non-invasive Cardiovascular Diagnosis – Current Concepts, Edited by Edward B. Dietrich, Chapter 35, pp. 337-359, Copyright 1978, University Park Press, Baltimore.

Noninvasive recording of His-Purkinje activity in man by ORS-triggered signal averaging. Wajszczuk WJ,  Stopczyk MJ, Moskowitz MS, Zochowski RJ, Bauld T, Dabos PL, Rubenfire M. Circulation. 1978 Jul; 58(1):95-102. 

Noninvasive external recording of cardiac conduction system (His bundle) activity. Wajszczuk WJ, Moskowitz MS, Bauld T, Dabos P, Weiss R, Rubenfire M. Med Instrum. 1978, Sep-Oct;12(5):282-7. 

Sinus node activity in man and animal studies recorded intraatrially by an on-line pre-memorized averaging technique. Mariusz J. Stopczyk, Marian Pieniak, Waldemar J. Wajszczuk and Melvyn Rubenfire. Excerpta Medica International Congress Series No. 395. CARDIAC PACING, Proceedings of the Vth International Symposium, Tokyo, March 14-18, 1976, pp. 13-18. Excerpta Medica, Amsterdam, ISBN 90 219 0326 1.

Pre-P (Sino-Atrial Node Region) Activity Recording from the Right Atrial Cavity by Signal Averaging*. MARIUSZ J. STOPCZYK, WALDEMAR J. WAJSZCZUK, RYSZARD J. ZOCHOWSKI, MELVYN RUBENFIRE. Pacing Clin Electrophysiol. 1979 Mar;2 (2):156-61.

*Presented in part at the Vth International Symposium on Cardiac Pacing. Tokyo, Japan. March 14–18, 1976. Copyright 1979. Official journal of the International Cardiac Pacing and Electrophysiology Society

Feasibility of non-invasive recording of the cardiac conduction system activity. Experimental correlations.  Waldemar J. Wajszczuk, Tadeusz Pałko, Jacek Przybylski, Mariusz J. Stopczyk, Osami Hamada, Thomas Bould, Mitchell S. Moskovitz and Melvyn Rubenfire. In: Progress in Cardiology (Proceedings of the 5^th International Congress on Electrocardiology, Glasgow, Scotland, September 5-8, 1978). Edited by P.W. Macfarlane, Pitman Medcal Publishing Co., Ltd., Kent, England, 1979.

Non-invasive studies of cardiac conduction system. W.J.Wajszczuk, M.S. Moskowitz, T. Bauld, T. Palko, J. Przybylski, P. Dabos, R. Weiss, M. Stopczyk, R. Żochowski, M. Rubenfire. Proceedings of “BIOSIGMA 78”, International Conference on Signals and Images in Medicine and Biology, Paris, April 24-28, 1978. Session C.IV: Non-aggressive methods for data acquisition, Communication C.IV.2 – see

NEW DEVELOPMENTS AND EXPERIMENTAL OBSERVATIONS ON EXTERNAL (NON-INVASIVE) RECORDING FROM THE CARDIAC CONDUCTION SYSTEM * W.J. WAJSZCZUK,  J. PRZYBYLSKI, T. PAŁKO, M. WORPELL, TH. BAULD AND M.   RUBENFIRE. Electrocardiology '81, Budapest, Hungary, 1981.  Z. Antaloczy, and I. Preda (eds.), pp. 89-94. – see

United States Patent 4261369 - His bundle cardiography.

• http://www.freepatentsonline.com/4261369.html

• http://www.patentstorm.us/patents/4261369/fulltext.html

Coronary Angioplasty – Sinai Hospital of Detroit, MI (1981-1997)
see separate page (PDF) Wysłano kilka streszczeń referatów na zjazdy kardiologiczne - nie zostały zaakceptowane do wygłoszenia.

Stypendia i współpraca z kolegami z Polski - zobacz