Ottomar Ernst Felix Rosenbach (4 January 1851 in Krappitz,

Silesia Silesia (, also , ) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Republic and Germany. Its area is approximately , and the population is estimated at around 8,000,000. Silesia is split ...

– 20 March 1907) was a German

physician A physician (American English), medical practitioner (Commonwealth English), medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through th ...

. Krappitz was a Silesian city where his father, Samuel Rosenbach, practised medicine. He received his education at the universities of

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...

and Breslau (

M.D. Doctor of Medicine (abbreviated M.D., from the Latin ''Medicinae Doctor'') is a medical degree, the meaning of which varies between different jurisdictions. In the United States, and some other countries, the M.D. denotes a professional degree. ...

1874). His studies were interrupted by the Franco-Prussian war, in which he took an active part as a

volunteer Volunteering is a voluntary act of an individual or group freely giving time and labor for community service. Many volunteers are specifically trained in the areas they work, such as medicine, education, or emergency rescue. Others serve ...

. From 1874 to 1877 he was assistant to Wilhelm Olivier Leube (1842-1922) and Carl Wilhelm Hermann Nothnagel (1841-1905) at the medical hospital and dispensary of the

University of Jena The University of Jena, officially the Friedrich Schiller University Jena (german: Friedrich-Schiller-Universität Jena, abbreviated FSU, shortened form ''Uni Jena''), is a public research university located in Jena, Thuringia, Germany. The un ...

; in 1878 he was appointed assistant at the Allerheiligen-Hospital at Breslau, and became ''

privatdozent ''Privatdozent'' (for men) or ''Privatdozentin'' (for women), abbreviated PD, P.D. or Priv.-Doz., is an academic title conferred at some European universities, especially in German-speaking countries, to someone who holds certain formal qualific ...

'' at the university of that city; in 1887 he became chief of the medical department of the hospital, which position he resigned in 1893; and in 1888 he was appointed

assistant professor Assistant Professor is an academic rank just below the rank of an associate professor used in universities or colleges, mainly in the United States and Canada. Overview This position is generally taken after earning a doctoral degree and general ...

. In 1896 he resigned his

professorship Professor (commonly abbreviated as Prof.) is an academic rank at universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who professes". Professors ...

and removed to Berlin, where he practised until his death. He discovered unusual eye tremors when the

eyelid An eyelid is a thin fold of skin that covers and protects an eye. The levator palpebrae superioris muscle retracts the eyelid, exposing the cornea to the outside, giving vision. This can be either voluntarily or involuntarily. The human eyel ...

s are closed in patients with

Graves disease Graves' disease (german: Morbus Basedow), also known as toxic diffuse goiter, is an autoimmune disease that affects the thyroid. It frequently results in and is the most common cause of hyperthyroidism. It also often results in an enlarged thyro ...

, now known as " Rosenbach's sign (eye)". He also described a clinical sign for

aortic regurgitation Aortic regurgitation (AR), also known as aortic insufficiency (AI), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular diastole, from the aorta into the left ventricle. As a conseq ...

(involving systolic pulsations of the

liver The liver is a major Organ (anatomy), organ only found in vertebrates which performs many essential biological functions such as detoxification of the organism, and the Protein biosynthesis, synthesis of proteins and biochemicals necessary for ...

) that too is referred to as " Rosenbach's sign (liver)".

Literary works

Rosenbach wrote many essays for the medical journals, and is one of the collaborators on

Albert Eulenburg Albert Eulenburg (10 August 1840 – 3 July 1917) was a German neurologist born in Berlin. Education Born into a Jewish family, he studied medicine at the Universities of Berlin, Bern and Zurich, earning his doctorate in 1861. Among his inst ...

's "''Realencyclopädie der Gesammten Heilkunde''" () (all three editions) and on

Carl Nothnagel Carl Wilhelm Hermann Nothnagel (28 September 1841 – 7 July 1905) was a German internist born in Alt-Lietzegöricke ( pl, Stare Łysogórki), near Bärwalde in der Neumark ( pl, Mieszkowice), Neumark, Brandenburg. Career The son of a pha ...

's "''Spezielle Pathologie und Therapie''" (). Of his works may be mentioned: * "''Studien über den Nervus Vagus''", Berlin, 1877; () * "''Grundlagen, Aufgaben und Grenzen der Therapie''",

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

, 1891; () * "''Die Entstehung und Hygienische Behandlung der Bleichsucht''",

Leipzig Leipzig ( , ; Upper Saxon: ) is the most populous city in the German state of Saxony. Leipzig's population of 605,407 inhabitants (1.1 million in the larger urban zone) as of 2021 places the city as Germany's eighth most populous, as wel ...

, 1893; () * "''Die Grundlagen der Lehre vom Kreislauf''", Vienna, 1894; () * "''Die Seekrankheit als Typus der Kinetosen''", ib. 1896; () * "''Die Krankheiten des Herzens und Ihre Behandlung''", Berlin and Leipzig, 1897; () * "''Grundriss der Pathologie und Therapie der Herzkrankheiten''", Berlin, 1899; () * "''Arzt Contra Bacteriologe''", Vienna, 1902 (translated into English by Achille Rose,

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

, 1904) ()

Bibliography

* Pagel, J. L., ''Biog. Lex.'' :JewishEncyclopedia.com - ROSENBACH, OTTOMAR ERNST FELIX:
at www.jewishencyclopedia.com ::By

Isidore Singer Isidore Singer (10 November 1859 – 20 February 1939) was an American encyclopedist and editor of ''The Jewish Encyclopedia'' and founder of the American League for the Rights of Man. Biography Singer was born in 1859 in Weisskirchen, M ...

& Frederick T. Haneman

Notes

External links

* {{DEFAULTSORT:Rosenbach, Ottomar 1851 births 1907 deaths 19th-century German physicians Silesian Jews People from Krapkowice