Clinical Addresses
760 PARK AVENUENEW YORK, NY 10021
Hours: Mon. 9 - 4; Tue. 9 - 4; Wed. 9 - 4; Thu. 9 - 4; Fri. 9 - 4
Handicap Access: yes
Phone: 212-737-3446
Fax: 212-737-9112
Medical Specialties
GastroenterologyMedical Expertise
Endoscopy, Inflammatory Bowel Disease, Hepatitis, General Gastroenterology, Colonoscopy, Gastro Esophageal Reflux Disease/GERDClinical Responsibilities
Dr. Knapp is an academic Gastroenterologist and Hepatologist whose areas of expertise are advanced/therapeutic Endoscopy (Gastroscopy, Enteroscopy, Colonoscopy) as well Hepatology. Dr. Knapp performs the majority of his endoscopic procedures in his office which is equipped with two state of the art endoscopy suites. Dr. Knapp's consultative Hepatology practice focuses on treatment of Hepatitis B and Hepatitis C.Dr. Knapp is a prolific medical writer and has authored over 20 major academic papers as well as a textbook on Gastroenterolgy. He has lectured on gastroenterological and hepatological topics all over the United States as well as in Europe. Dr. Knapp's other areas of interest include Health Care Policy formulation & analysis. He has served as a Science Advisor to numerous public officials including Senators Paul Tsongas (D/MA) & Bill Bradley (D/NJ) and has testified as an expert witness in front of several United States Senatorial and Congressional Committees. Dr. Knapp is also a member of the Council on Foreign Relations.
Languages
FrenchBoard Certification
1982 — Internal Medicine1987 — Gastroenterology (Internal Med)
Education
1975-1979 — Columbia Univ. Col. of Phy. & Surg., Medical Education1979-1982 — Albert Einstein College of Medicine (Medicine), Residency Training
1982-1985 — Brigham and Women's Hospital (Gastroenterology), Clinical Fellowships
All data from NYU Health Sciences Library Faculty Bibliography — -
Contact:
http://hsl.med.nyu.edu/faculty-bibliography-search#about
The HBV and HCV pandemics: Health, political, and security challenges
Knapp, AB
2005 ;120(2):243-251 SUM, Political science quarterly
—
id: 56286,
year: 2005,
vol: 120,
page: 243,
stat: Journal Article,
A retro disease on the loose. Rise of hepatitis C in prisons may fuel outbreak in general population
Knapp, Albert
2005 Apr 25;35(17):34-34, Modern healthcare
—
id: 52635,
year: 2005,
vol: 35,
page: 34,
stat: Journal Article,
Endoscopic retrieval of a small bowel enteroscopy capsule lodged in a Zenker's diverticulum
Knapp, Albert B; Ladetsky, Lynn
2005 May;3(5):xxxiv-xxxiv, Clinical Gastroenterology & Hepatology
—
id: 56073,
year: 2005,
vol: 3,
page: xxxiv,
stat: Journal Article,
Successful infliximab therapy for a duodenal stricture caused by Crohn's disease
Knapp, Albert B; Mirsky, Felice J; Dillon, Evan H; Korelitz, Burton I
2005 Dec;11(12):1123-1125, Inflammatory bowel diseases
—
id: 65341,
year: 2005,
vol: 11,
page: 1123,
stat: Journal Article,
Foreward
Knapp AB
Totally dairy-free cooking New York : William Morrow, 2000,
—
id: 4454,
year: 2000,
vol: ,
page: ?,
stat: Chapter,
Viral hepatitis
Knapp AB
1999 ;131:159-160, Annals of internal medicine
—
id: 73106,
year: 1999,
vol: 131,
page: 159,
stat: Journal Article,
Hepatic complications of inflammatory bowel disease
Knapp, Albert B
Management of inflammatory bowel disease St. Louis : Mosby Year Book, 1992,
—
id: 4455,
year: 1992,
vol: ,
page: 31,
stat: Chapter,
Figuring out why a patient is yellow
Knapp AB
1990 ;2:35-38, Senior patient
—
id: 73105,
year: 1990,
vol: 2,
page: 35,
stat: Journal Article,
Cirrhosis as a consequence of graft-versus-host disease
Knapp AB; Crawford JM; Rappeport JM; Gollan JL
1987 Feb;92(2):513-519, Gastroenterology
A 28-yr-old woman with severe idiopathic aplastic anemia received an HLA-identical mixed lymphocyte culture nonreactive bone marrow transplant from her brother. In the months after successful engraftment, she developed cutaneous and hepatic graft-versus-host disease, associated with marked cholestatic jaundice. Despite a series of therapeutic maneuvers, cholestasis persisted but remained relatively stable over the ensuing 10 yr. However, serial liver biopsies revealed progressive biliary-type fibrosis culminating in cirrhosis. Subsequently, her clinical course deteriorated and she developed signs of hepatic failure, and ultimately died 10.5 yr after bone marrow transplantation. The evolution of chronic graft-versus-host disease to cirrhosis may be a limiting factor in the long-term survival of this group of bone marrow transplant recipients. The lack of correlation between the stable clinical or biochemical indices and the progressive hepatic disease underscores the need for sequential liver biopsies in patients with sustained liver function abnormalities after bone marrow transplantation
—
id: 20460,
year: 1987,
vol: 92,
page: 513,
stat: Journal Article,
A NONSURGICAL APPROACH TO THE TREATMENT OF PANCREATITIS SECONDARY TO PANCREAS DIVISUM
KNAPP, AB; ZIMMON, DS
1986 MAY ;90(5):1495-1495, Gastroenterology
—
id: 73165,
year: 1986,
vol: 90,
page: 1495,
stat: Journal Article,
ENDOSCOPIC STENTS AS DIAGNOSTIC AIDS IN PATIENTS WITH PANCREATITIS SECONDARY TO PANCREAS DIVISUM
KNAPP, AB; ZIMMON, DS
1986 APR ;32(2):159-159, Gastrointestinal endoscopy
—
id: 73164,
year: 1986,
vol: 32,
page: 159,
stat: Journal Article,
Bilirubin metabolism and congenital jaundice
Gollan JL; Knapp AB
1985 Feb;20(2):83-7, 90, 92, Hospital practice (office edition)
—
id: 20462,
year: 1985,
vol: 20,
page: 83,
stat: Journal Article,
The cimetidine-lidocaine interaction: an observation in search of an explanation
Knapp AB
1985 Nov-Dec;25(8):562-563, Journal of clinical pharmacology
—
id: 20461,
year: 1985,
vol: 25,
page: 562,
stat: Journal Article,
Nonsurgical (spontaneous) spleno-renal shunt presenting as an abdominal mass: case report and review of the literature
Knapp AB; Chopra S; Jay ME
1985 Feb;80(2):103-106, American journal of gastroenterology
A case of an unusually large nonsurgical (spontaneous) spleno-renal shunt presenting as an abdominal mass is described. The diagnosis was first suggested by the finding of a lobulated, serpiginous, contrast-enhancing mass in the left upper quadrant of the abdomen by body CT scanning, and then confirmed by selective abdominal angiography. This represents the first report of the use of body CT scanning with contrast enhancement in the diagnosis of nonsurgical (spontaneous) spleno-renal shunts
—
id: 20463,
year: 1985,
vol: 80,
page: 103,
stat: Journal Article,
Gastroenterology
Knapp, Albert B; Farkas, Paul S
Baltimore : Williams & Wilkins, 1985,
—
id: 1336,
year: 1985,
vol: ,
page: ,
stat: ,
Cotton-wool spots as a sign in leptospirosis (Weil's disease)
Gutman I; Walsh JB; Knapp AB
1983 ;187(3):133-136, Ophthalmologica
A 44-year-old black male presented with fever, myalgia and weakness. He had elevated blood urea nitrogen, creatine phosphokinase and serum glutamic-oxaloacetic transaminase. During the first 6 days of this undiagnosed illness azotemia increased, a pericardial friction rub occurred, and hematuria was present. On the 7th day bilateral subconjunctival hemorrhages, anterior uveitis, and peripapillary cotton-wool spots were noted. This combination of findings suggested leptospirosis, which was subsequently confirmed by specific antibody titers. Therapeutic response was achieved with high-dose systemic steroids
—
id: 20466,
year: 1983,
vol: 187,
page: 133,
stat: Journal Article,
Widespread cytomegalovirus gastroenterocolitis in a patient with acquired immunodeficiency syndrome
Knapp AB; Horst DA; Eliopoulos G; Gramm HF; Gaber LW; Falchuk KR; Falchuk ZM; Trey C
1983 Dec;85(6):1399-1402, Gastroenterology
This case report documents extensive gastrointestinal cytomegalovirus infection in a patient with acquired immunodeficiency syndrome, presenting as diarrhea and involving stomach, duodenum, and colon. Endoscopic biopsy specimens and cultures were essential to make the diagnosis and to distinguish the illness from inflammatory bowel disease. A careful search for other potential pathogens was made as well. The discussion includes a review of literature regarding cytomegalovirus involvement of the gastrointestinal tract
—
id: 20464,
year: 1983,
vol: 85,
page: 1399,
stat: Journal Article,
The cimetidine-lidocaine interaction
Knapp AB; Maguire W; Keren G; Karmen A; Levitt B; Miura DS; Somberg JC
1983 Feb;98(2):174-177, Annals of internal medicine
Lidocaine is a widely used antiarrhythmic agent whose plasma clearance varies with changes in hepatic blood flow. Cimetidine, an H2-receptor antagonist, has been shown to decrease hepatic blood flow. To ascertain whether cimetidine affected serum lidocaine concentration, we studied 21 patients receiving lidocaine infusions and divided them into two groups. Fifteen patients received cimetidine, 300 mg every 6 hours, in addition to lidocaine; six patients received only lidocaine. In 14 of the 15 patients receiving both lidocaine and cimetidine, a rise in serum lidocaine levels was seen, whereas no change was noted in the control group. Six of the 15 patients were found to have levels in the toxic range and two had symptoms. An additional three patients on lidocaine received diphenhydramine, an H1-receptor antagonist. No elevation in serum lidocaine levels was noted after administration of diphenhydramine. We conclude that there exists an interaction between lidocaine and cimetidine and that the rise in serum lidocaine levels may be mediated by cimetidine's inhibition of the H2 receptor
—
id: 20465,
year: 1983,
vol: 98,
page: 174,
stat: Journal Article,
Epistaxis: an overlooked diagnosis in presumed variceal bleeding
Farkas PS; Knapp AB; Das KM
1982 Feb;4(1):49-51, Journal of clinical gastroenterology
—
id: 20469,
year: 1982,
vol: 4,
page: 49,
stat: Journal Article,
Treatment of sarcoid meningitis with radiotherapy
Grizzanti JN; Knapp AB; Schecter AJ; Williams MH Jr
1982 Oct;73(4):605-608, American journal of medicine
—
id: 20467,
year: 1982,
vol: 73,
page: 605,
stat: Journal Article,
Cimetidine-induced anaphylaxis
Knapp AB; Grimshaw RS Jr; Goldfarb JP; Farkas PS; Rubin M; Rosenstreich DL
1982 Sep;97(3):374-375, Annals of internal medicine
—
id: 20468,
year: 1982,
vol: 97,
page: 374,
stat: Journal Article,
THE EFFECTS OF CIMETIDINE AND DIPHENHYDRAMINE ON SERUM LIDOCAINE LEVELS IN MAN
KNAPP, AB; MAGUIRE, W; KEREN, G; KARMEN, A; LEVITT, B; MIURA, DS; SOMBERG, JC
1982 ;82(5):1102-1102, Gastroenterology
—
id: 73162,
year: 1982,
vol: 82,
page: 1102,
stat: Journal Article,
THE EFFECT OF CIMETIDINE ADMINISTRATION ON SERUM LIDOCAINE LEVELS IN MAN
KNAPP, AB; MAGUIRE, W; KEREN, G; KARMEN, A; MIURA, DS; SOMBERG, JC
1982 ;49(4):1026-1026, American journal of cardiology
—
id: 73163,
year: 1982,
vol: 49,
page: 1026,
stat: Journal Article,
Markedly elevated creatinine phosphokinase, cotton wool spots, and pericarditis in a patient with leptospirosis
Farkas PS; Knapp AB; Lieberman H; Guttman I; Mayan S; Bloom AA
1981 Mar;80(3):587-589, Gastroenterology
We are reporting a patient with acute leptospirosis whose creatinine phosphokinase was markedly elevated secondary to an associated myositis. In patients presenting with acute hepatitis, an elevated creatinine phosphokinase should suggest the diagnosis of leptospirosis. Our patient's course of illness was made unusual by the appearance of cotton wool spots, previously unreported in leptospirosis as well as by pericarditis in the absence of uremia. This illustrates our ever widening recognition of the clinical manifestations of leptospirosis
—
id: 20470,
year: 1981,
vol: 80,
page: 587,
stat: Journal Article,
Diabetic ketoacidosis and invasive aspergillosis
Grizzanti, J N; Knapp, A
1981 ;159(1):43-49, Lung
—
id: 73102,
year: 1981,
vol: 159,
page: 43,
stat: Journal Article,


