Nicholas Kadar

Nicholas Kadar is a physician and an attorney who now practices Health Law, and has represented physicians throughout the country in a variety of disputes, mostly with hospitals. Dr. Kadar graduated from Oxford University, England in Medicine and Surgery, did his residency training in Obstetrics and Gynecology at Yale University-New Haven Hospital, and his Fellowship training in Gynecologic Oncology at The Massachusetts General Hospital, Harvard University. He is also a Graduate of the Institute of Statisticians, England. Dr. Kadar has authored two books, more than 20 book chapters, and over 70 peer-reviewed articles. He has lectured widely on laparoscopic surgery and the treatment of ectopic pregnancies, and has been invited to perform live surgery to demonstrate laparoscopic surgical techniques at several centers in this country and abroad.

Dr. Kadar obtained his law degree from Rutgers University School of Law, Newark in 2000, and a LL.M in Health Law from Seton Hall School of Law, Newark in 2005. Dr. Kadar's current research interests are in peer review and the cognitive science of legal and medical decision making.

BOOKS and BOOK CHAPTERS
ARTICLES
AWARDS
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BOOKS and BOOK CHAPTERS

BOOKS and BOOK CHAPTERS
- BOOKS
  
  Diagnosis and treatment of extrauterine pregnancies. Raven Press, New York, 1990.
  
  Reviews PDF
  
  Atlas of Laparoscopic Pelvic Surgery, Blackwell Science, Inc., Oxford 1995.
  
  Reviews PDF
  
  BOOK CHAPTERS
  
  1. Kadar N, Nelson JH: The place of pre-operative investigations in the management of stress urinary incontinence, in, Progress in Gynecology, Vol VII, eds, M Taymor & JH Nelson, Grunne and Stratton, 1983, p 379-401.
  
  2. Kadar N: Ectopic pregnancy: a re-appraisal of aetiology, diagnosis, and treatment, in, Progress in Obstetrics and Gynaecology, Vol III, ed John Studd, Churchill Livingstone, 1983, pp 305-323.
  
  3. Kadar N: The Second Stage, in, The Management of Labour, ed, John Studd, blackwell Scientific Publications, 1985, pp 268-286.
  
  4. Kadar N, Romero R: Ectopic pregnancy, in, Fetal Assessment: Physiological, Clinical and Medico-Legal Principles, eds FH Boehm & RD Eden, Appleton & Lange, Norwalk, Ct 1990, pp 575-599
  
  5. Kadar N: Ectopic and heterotropic pregnancies, in Medicine of the Fetus and its Mother, eds EA Reece, JC Hobbins, MJ Mahoney, R Petrie, J.B. Lippincott, Philadelphia, 1992, pp 234-265
  
  6. Kadar N: Treatment of tubal pregnancies, in, Pelvic Inflammatory Disease: Clinical Diagnosis and Treatment, eds GS Berger, L Westrom, Raven Press, New York, 1992 pp 139-162
  
  7. Kadar N: Laparoscopic dissection of the pelvic retroperitoneum and ureters: relevant surgical anatomy, in Laparoscopic Hysterectomy, eds R. Garry, H. Reich, Blackwell Scientific Publications, London, 1993, pp 153-166.
  
  8. Kadar N: Chapter 39: Laparoscopic management of gynecological malignancies, in Gencologic Surgery, Ed L. Sanz, Blackwell Scientific Publications, Boston, 1994, p 291-307.
  
  9. Kadar N, Reich H: Laparoscopic pelvic and aortic lymphadenectomy. Chapter 16. Atlas of Laparoscopic Techniques, Ed. T. Tulandi, W.B. Saunders, Edinburgh, 1994, p 91-7.
  
  10. Kadar N, Reich H: Laparoscopic ureteric dissection. Chapter 17. Atlas of Laparoscopic Techniques, Ed. T. Tulandi, W.B. Saunders, Edinburgh, 1994 p99-108.
  
  11. Reich H, Kadar N: Laparoscopic pelvic lymphadenectomy, in Laparoscopic Surgery, eds JF Hulka, H Reich, Saunders, Philadelphia, 1994, pp 289-94.
  
  12. Kadar N. Laparoscopic pelvic and aortic lymphadenectomy. Balliere's Clinical Obstetrics and Gynecology. International Practise and Research. Ed C. Sutton 1995;9(4):651-73.
  
  13. Kadar N: Chapter 30.13: Laparoscopic management of gynecologic malignancies, in Principles of Laparoscopic Surgery, Basic and Advanced Techniques. Ed. M. Arregui, R. Fitzgibbons, N. Katkahda, B. McKiernan, H. Reich, Springer-Verlag 1995, pp 652-71.
  
  Review PDF
  
  14. Reich H, Kadar N. Chapter 30.5: Ectopic Pregnancy, in Principles of Laparoscopic Surgery, Basic and Advanced Techniques. Ed. M. Arregui, R. Fitzgibbons, N. Katkahda, B. McKiernan, H. Reich, Springer-Verlag 1995, pp 578-94.
  
  15. Kadar N: Chapter 2. Laparoscopic surgical anatomy of the pelvis, in Laparoscopic Hysterectomy, ed C.Y. Liu, Blackwell Scientific Publications, 1996, p 11-27.
  
  16. Liu CY, Kadar N: Chapter 8. Identification and dissection of the ureter, in Laparoscopic hysterectomy, ed C.Y. Liu, Blackwell Scientific Publications, 1996, p 126-145.
  
  17. Kadar N: Chapter 14. Laparoscopic hysterectomy in the management of gynecological malignancies: extraperitoneal laparoscopic hysterectomy, in Laparoscopic hysterectomy, ed C.Y. Liu, Blackwell Scientific Publications, 1996, p 256-76.
  
  18. Kadar N. Present and future role of laparoscopic surgery in gynecologic oncology: efficiency, limits and possible developments in Laparoscopic Surgery in Gynecologic Oncology, Eds D. Queleu, D. Dargent, J. Childers, Blackwell Scientific Publication (1999).
  
  19. Kadar N. Laparoscopic aortic lymphadenectomy. Chapter 40. Endoscopic Surgery for Gynaecologists, Ed C. Sutton & M. Diamond, W.B. Saunders, London, 1997.
  
  20. Kadar N. Laparoscopic anatomy and dissection of the pelvis. Balliere's Clinical Obstetrics and Gynecology. International Practise and Research. Ed C. Wood & P. Maher 1997;11(1): 37-60.
  
  21. Kadar N: Ectopic and heterotropic pregnancies, in Medicine of the Fetus and its Mother, eds EA Reece, JC Hobbins, MJ Mahoney, R Petrie, J.B. Lippincott, Philadelphia, 2nd Edition, 1998.
  
  22. Kadar N: Laparoscopic pelvic and aortic lymphadenectomy. Chapter 19. Laparoscopic Techniques, Ed. T. Tulandi, W.B. Saunders, Edinburgh, 2d Ed. p 129.
ARTICLES

ARTICLES
- Legal and Peer Review
  
  LEGAL and PEER REVIEW
  
  1. Kadar N. Peer Review of Medical Practices: Missed Opportunities to Learn. Am. J. Obstet Gynecol 2014; 256: 596-601. PDF
  
  2. Romero R, Kadar N, Miranda J., et al. The diagnostic performance of Mass Restricted (MR) score in the identification of microbial Invasions of the amniotic cavity or intra-amniotic inflammation is not superior to amniotic fluid interleukin-6. J. Maternal-Fetal & Neonatal Medicine 2014; 27: 757-769. PDF
  
  3. Kadar N. How Courts Are Protecting Unjustified Peer Review Actions Against Physicians. 16 JAAPS 17 (2011). PDF
  
  4. Kadar N. Systemic Bias in Peer Review: Suggested Causes, Potential Remedies. 20 J. Laparoendosc & Adv. Surg. Tech. 123 (2010). PDF
  
  5. Kadar N. The Health Care Quality Improvement Act: Time to Rethink Outdated and Ineffective Approaches. 28 Assoc. Healthcare Int. Aud. 16 (2009). PDF
  
  6. Kadar N.   Mitan v. Campbell: The Michigan Supreme Court’s Analysis Changes Common Law of Republication And Protects Repetitions of Defamation That Have No Social Value. 54 Wayne Law Review 1707 (2008) PDF
  
  LAPAROSCOPIC SURGERY and ONCOLOGY
  
  1. Kadar N, Kohorn EI, LiVolsi VA, Kapp DS: Histological variants of cervical involvement by endometrial carcinoma. Obstet Gynecol 59:85,1982 PDF
  
  2. Barnard N, Hall PA, Le Moine NR, Kadar N: A proliferative index in breast carcinoma determined in situ by Ki-67 immunostaining, and its relationship to clinical and pathological variables. J Clin Path 152:287, 1987
  
  3. Kadar N: Laparoscopic pelvic lymphadenectomy for the treatment of
  
  gynecological malignancies: Description of a technique. Gynaecol Endosc 1992;1:79-83.
  
  4. Kadar N, Homesley HD, Malfetano JH: Positive peritoneal cytology is an adverse factor in endometrial carcinoma only if there is other evidence of extrauterine disease. Gynecol Oncol 1992;46:145.
  
  5. Kadar N, Malfetano JH, Homesley HD: Determinants of survival in endometrial carcinoma histologically confined to the uterus. Obstet Gynecol 1992;80:655.
  
  6. Kadar N: Laparoscopic resection of fixed and enlarged para-aortic lymph nodes in patients with advanced cervix cancer. Gynaecol Endosc 1993;2:217-221 PDF
  
  7. Kadar N. The laparoscopic surgery debate: technology assessment or statistical Jezebel? Biochem Pharmacol 1993;47:201-6.
  
  8. Kadar N, Reich H: Laparoscopically assisted radical Schauta hysterectomy and bilateral pelvic lymphadenectomy for the treatment of stage IB carcinoma of the cervix. Gynaecol Endosc 1993;2:135-142.
  
  9. Kadar N, Reich H, Liu CY, Manco GF, Gimpleson R: Incisional hernias following major laparoscopic gynecological procedures. Am J Obstet Gynecol 1993;168:1493 PDF
  
  10. Kadar N, Malfetano J, Homesley H: Cytoplasmic steroid receptors in endometrial carcinoma: effect on survival in surgically staged patients. Gynecol Oncol 1993;50:281-6.
  
  11. Homesley HD, Kadar N, Barrett RJ, Lentz SS: Selective pelvic and periaortic lymphadenectomy does not increase morbidity in surgical staging of endometrial carcinoma. Am J Obstet Gynecol 1993;167;1225.
  
  12. Pelosi MA, Kadar N, Pelosi M: The electronic video operative laparoscope. J American Assoc Gyn Laparoscopists 1993;1;54-7.
  
  13. Kadar N: An operative technique for laparoscopic hysterectomy using a
  
  retroperitoneal approach. J Am Assoc Gynecol laparoscopists 1994;1:365-77 PDF
  
  14. Kadar N: Laparoscopic radical vaginal hysterectomy: an operative technique and its evolution. Gynaecol Endosc 1994;3:109-122.
  
  15. Kadar N: Radomized trials for laparoscopic surgery: valid research strategy or academic gimmick? (Editorial) Gynaecol Endosc 1994;3:69-74 PDF
  
  16. Kadar N, Lemmerling L. Urinary tract injuries during laparoscopically assisted hysterectomy: causes and prevention. Am J Obstet Gynecol 1994;170:47-8.
  
  17. Kadar N, Homesley H, Malfetano J. Prognostic factors in surgical stage III and IV carcinoma of the endometrium. Obstet Gynecol 1994;84:983-6.
  
  18. Kadar N, Pelosi MA. Laparoscopically assisted hysterectomy in women weighing 200 pounds or more. Gynaecol Endosc 1994;3:159-62.
  
  19. Kadar N, Pelosi MA: Can cervix cancer be adequately staged by laparoscopic aortic lymphadenectomy? Gynecol Endosc 1994;3:213-6 PDF
  
  20. Pelosi MA, Kadar N. Laparoscopically assisted hysterectomy for uteri weighing 500 grams or more. J Am Assoc Gynecol laparo 1994;1:405-9.
  
  21. Kadar N: A laparoscopic technique for dissecting the pelvic retroperitoneum and identifying the ureters. J Reprod Med 1995;40:116-122.
  
  22. Kadar N: Laparoscopic pelvic lymphadenectomy in obese women with
  
  gynecologic malignancies. J Am Assoc Gyn Laparoscopists 1995;2:81-5 PDF
  
  23. Kadar N: Suprapubic microceliotomy: an aid to the morcellation of fibroid uteri weighing 2000 grams. Gynaecol Endosc 1995;4:63-5.
  
  24. Kadar N: Transient ureteric obstruction following ureteric stent placement during laparoscopic hysterectomy. Gynaecol Endosc 1995;4:289-91.
  
  25. Kadar N, Krummerman: Metaplastic origin of lymph node "metastases" in serous bordeline tumor of the ovary. Gynecol Oncol 1995;59:394-7.
  
  26. Kadar N: Laparoscopic surgery for gynecologic malignancies in women aged 65 years or more. Gynaecol Endosc 1995;4: 173-6.
  
  27. Kadar N, Homesley H, Malfetano J: New perspectives on the indications for pelvic and aortic lymphadenectomy in the management of endometrial carcinoma and their relevance to surgical staging. Gynaecol Endosc 1995;4:109-18 PDF
  
  28. Kadar N. Extraperitoneal laparoscopic hysterectomy for the large uterus. Gynaecol Endosc 1996;5:271-6 PDF
  
  29. Kadar N. A new technique of primary trocar insetion for laparoscopy. J Am Assoc Gyn Laparoscopists 1997;4:485-9 PDF
  
  30. Kadar N. Two-stage laparoscopic surgical approach to the management of Endometrial Carcinoma. J Am Assoc Gyn Laparoscopists 1997;4:443-8 PDF
  
  31. Kadar N. Laparoscopic management of gynecologic malignancies - time to quit? Gynaecol Endoscopy 1997;6:135-42.
  
  32. Kadar N. Mechanism and prevention of port-site recurrences following laparoscopic treatment of gynecologic malignancies. Br. J Obstet Gynaecol 1997;104:1308-13 PDF
  
  33. Kadar N. The quasi-randomized trial: a technique for eliminating bias resulting from treatment preferences and the inability to "blind". Gynaecol Endosc 1997;4:197 PDF
  
  34. Kadar N. Proceedings of the First International conference on the Role of Laparoscopy in Gynecologic Malignancies. Gynaecol Endosc 1998;7:171
  
  35. Kadar N. The laparoscopic management of ovarian carcinoma: preliminary observations and suggested protocols. Gynaecol Endosc 1998;7:151-6 PDF
  
  36. Kadar N: Implementation of laparoscopic hysterectomy in a community hospital: initial results compared with abdominal hysterectomy. Gynecol Endosc 1998;7:145-149 PDF
  
  37. Kadar N. Endometrial cancer and fibroids: should they be managed laparoscopically? Gynaecol Endosc 1999;8:25-8.
  
  38. Kadar N. Laparoscopic anatomy & pelvic dissection. Current Opinion in Obstetrics & Gynecology 1996;8:1-14 (Review Article) PDF
  
  39. Kadar N. Laparoscopic management of gynaecological malignancies? Current Opinion in Obstetrics & Gynecology 1997;9:247-255 (Review Article) PDF
  
  UROGYNECOLOGY
  
  1. Kadar N, Saliba N, Nelson JH: The frequency, causes and prevention of severe urinary dysfunction after radical hysterectomy. Br J Obstet Gynaecol 90:858, 1983 PDF
  
  2. Kadar N, Nelson JH: Treatment of urinary incontinence after radical hysterectomy. Obstet Gynecol 64:400,1984 PDF
  
  3. Kadar N, Nelson JH: Sling Operation for total incontinence following radical vulvectomy. Obstet Gynecol 64:85S, 1984. PDF
  
  4. Kadar N: Permanent retention after radical hysterectomy. Neurourology &  Urodynamics1989;8:11 PDF
  
  5. Kadar N: The value of bladder filling in the clinical detection of urine loss and selection of patients for urodynamic testing. Br J Obstet Gynaecol 95:698, 1988 PDF
  
  ECTOPIC PREGNANCY
  
  1. Kadar N, DeVore G, Romero R: Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy. Obstet Gynecol 58:156, 1981 PDF
  
  (Reviewed and voted one of the classic articles published by the journal in the  last 50 years PDF)
  
  2. Kadar N, Caldwell BV, Romero R: A method of screening for ectopic pregnancy and its indications. Obstet Gynecol 58:162, 1981 PDF
  
  3. Kadar N, DeCherney AH, Romero R: Receiver Operating Characteristic (ROC) curve analysis of the relative efficacy of single and serial chorionic
  
  gonadotrophin determinations in the early diagnosis of ectopic pregnancy. Fertil Steril 37:542, 1982 PDF
  
  4. Kadar N, Romero R: Timing of a repeat ultrasound examination in the evaluation for ectopic pregnancy. J Clin Ultrasound 10:403,1982 PDF
  
  5. Kadar N, Romero R: Grey-Scale findings in ectopic pregnancy resembling molar pregnancy and missed abortion. J Clin Ultrasound 10:251,1982.
  
  6. Kadar N, Taylor KW, Rosenfield AT, Romero R: Combined use of chorionic gonadotrophin beta-subunit assay and ultrasound in the evaluation for ectopic pregnancy. Am J Roentgenol 141:609,1983 PDF
  
  7. Romero R, Copel J, Kadar N, DeCherney AH, Hobbins JC: The value of culdocentesis in the diagnosis of ectopic pregnancy. Obstet Gynecol 65:519, 1985.
  
  8. Romero R, Horgan JG, Kohorn EI, Kadar N,Hobbins JC: New Criteria for the diagnosis of gestational trophoblastic disease. Obstet Gynecol 66:553, 1985
  
  9. Romero R, Kadar N, Jeanty P, Copel JA, Chervenak FA, DeCherney AH, Hobbins JC: A prospective study of the value of the discriminatory hCG zone in the diagnosis of ectopic pregnancy. Obstet Gynecol 66:357, 1985
  
  10. Romero R, Kadar N, Copel JA, DeCherney AH, Hobbins JC: The influence of the sensitivity of the hCG assay on pregnancy testing and screening for ectopic pregnancy. Am J Obstet Gynecol 153:72, 1985
  
  11. Romero R, Kadar N, Copel JA, DeCherney AH, Hobbins JC: Serial hCG testing as a diagnostic tool in ectopic pregnancy. Am J Obstet Gynecol 155:392, 1986
  
  12. Kadar N, Romero R: Observations on the log-hCG time relationship in early pregnancy and their practical implications. Am J Obstet Gynecol 157:73, 1987 PDF
  
  13. Romero R, Kadar N, Castro D, Jeanty P, Hobbins JC, DeCherney AH: The value of adnexal sonographic findings in the diagnosis of ectopic pregnancy. Am J Obstet Gynecol 158:52, 1988
  
  14. Kadar N, Romero R: Further Observations on Serial hCG Patterns in Ectopic Pregnancy and Missed Abortion. Fertil Steril 50:367, 1988 PDF
  
  15. Kadar N. Early recourse to laparoscopy in the management of suspected ectopic pregnancy: accuracy and morbidity. J Reprod Med 1990;35:1153.
  
  16. Kadar N, Freedman M, Zacher M: Further observations on serial hCG testing in early pregnancy among asymptomatic women with a prior history of infertility. Fertil Steril 1990;54:783.
  
  17. Kadar N, Blumenthal S: Serum progesterone levels in ectopic pregnancy. Infertility 1992;15:7-17
  
  18. Kadar N, Bohrer M, Kemman E, Sheldon R: A prospective, randomized study of the hCG-time relationship in early gestation: clinical implications. Fertil Steril 1993;60:409-12 PDF
  
  19. Kadar N, Bohrer M, Kemman E, Shelden R: The discriminatory hCG Zone for endovaginal sonography: a prospectice, randomized study. Fertil Steril 1994;61:1016-1020
  
  OBSTETRICS
  
  1.  Kadar N, Romero R: Prognosis for future childbearing after mid- cavity  instrumental deliveries in primidravidas. Obstet Gynecol 62:166,1983 PDF
  
  2.  Romero R, Kadar N, Govea F, Hobbins JC: The pharmacokinetics of theophylline in pregnant women in labor at term. Am J Perinatol 1:31, 1983.
  
  3.  Moya F, Grannum P, Pinto K, Bracken M, Kadar N, Hobbins JC: Ultrasound
  assessment of the post dates pregnancy. Obstet Gynecol 65:319, 1985.
  
  4.   Kadar N, Cruddas M, Campbell S: Estimating the probability of spontaneous delivery conditional on time spent in the second stage. Br J Obstet Gynaecol 93:568, 1986 PDF
  
  5.  Romero R, Kadar N, Hobbins JC, Duff GW: Infection and labor: The detection of endotoxin in Amniotic fluid. Am J Obstet Gynecol 157:815,1987
  
  6. Romero R, Kadar N, Lafreniere D, Durum S, Hobbins JC, Duff GW: Do blood and Meconium affect the detection of endotoxin in Amniotic fluid by the Limulus Amoebocyte Gel Clot Assay? Am J Perinatol 4:356, 1987
  
  7. Romero R, Lafreniere D, Duff GW, Kadar N, Durum S, Hobbins JC: Failure of endotoxin to cross the chorioamniotic Membranes in Vitro. Am J Perinatol 4:360, 1987
  
  8. Kadar N, Tapp A, Wong A: A randomised trial of nipple stimulation in the reduction of post-datism. J Perinatol 1990;10:164.
  
  9. Feld SM, Aikman NM, Laubach GE, Harrigan JT, Kadar N: Efficacy of gram stain and a rapid ELISA test in screening for Group B Streprococcus. J Maternal-Fetal Med 1993;2:21-4
  
  10. Hux CH, Trolice MP, Kadar N: The value of fetal fibronectin as a screen for preterm labor and delivery. J Perinatol 1995; 4: 100-4.
  
  11. Pacora P, Chaiworapongsa T, Maymon E, Kim YM, Gomez R, Yoon BH, Ghezzi F, Berry SM, Qureshi F, Jacques SM, Kim JC, Kadar N, Romero R. Funisitis and chorionic vasculitis: the histological counterpart of the fetal inflammatory response syndrome. 11 J Matern Fetal Neonatal Med. 18 (2002).
  
  12. Romero R, Kalache KD, Kadar N. Timing the delivery of the preterm severely growth-restricted fetus: venous Doppler, cardiotocography or the biophysical profile? 19 Ultrasound Obstet Gynecol. 118 (2002).
  
  13. Romero R, Kadar N, Vaisbuch E, Hassan SS. Maternal death following cardiopulmonary collapse after delivery: amniotic fluid embolism or septic shock due to intrauterine infection? 64 Am J Reprod Immunol 113 (2010)
  
  14. Kadar N. TORCH infections: A significant Health hazard to pregnant women (Review Article). J Mat & Child Health, November 1979.
  
  15. Kadar N. Early-onset neonatal sepsis: A changing disease requiring changes in management (Review Article). J Mat & Child Health November 1990.
AWARDS

AWARDS
- Veress Medal, Hungarian Gynecologic Endoscopy Society, Budapest, August, 2000.
  
  First Prize for Best Surgical Video 1996, International Society for Gynecologic Endoscopy, Chicago, April 14-17, 1996.
  
  Best of the Best -1995, Video Journal of Obstetrics & Gynecology, Laparoscopic Aortic Lymphadenectomy.
  
  Best Creative Video Award, 2nd International Gynecologic Endoscopic Film Festival & Instrumentation Exhibition. San Diego, Ca, July 8-9, 1994.
  
  First Prize & Olympus Golden Laparoscope Award for Best Surgical Videos 1994, International Congress of Gynecologic Endoscopy, New York, NY, October 18-23, 1994.
  
  Research Paper, 1st Prize, Jersey Shore Medical Center, May 1994.
  
  Boston Obstetrical Society Research Prize, February, 1981.
  
  Open (Merit) Scholarship to Oxford University (Exeter College), September, 1967.
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