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Woldemar Mobitz
Woldemar Mobitz (31 May 1889 – 11 April 1951) was a Russian-German physician. The forms of second degree AV block are named after him for him. Mobitz was born on May 31, 1889 in St. Petersburg, Russia. He attended the local high school in Meiningen (Saxony, Germany) from which he graduated in 1908. He then studied medicine at the Universities of Freiburg and Munich, where he earned his doctorate in 1914 (“Contributions to Basedow disease”). He then worked at the Surgical Hospitals in Berlin and Halle as well as in internal medicine at the University Hospitals of Munich and Freiburg. In Munich, Mobitz was promoted to the position of a senior lecturer thanks to his research on heart block. In 1928, after a 4-year tenure, he accepted a post in Freiburg as Associate Professor and Chief of Staff of the Clinic of Internal Medicine. In 1943, he became Director of the Medical Hospital in Magdeburg-Sudenburg Municipal Hospital until the occupation by the Soviet army in 1945. Mobit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Degree AV Block
Second-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart. It is a conduction block between the atria and ventricles. The presence of second-degree AV block is diagnosed when one or more (but not all) of the atrial impulses fail to conduct to the ventricles due to impaired conduction. It is classified as a block of the AV node and is categorized in between first-degree (slowed conduction) and third degree blocks (complete block). Signs and symptoms Most people with Wenckebach (Type I Mobitz) do not show symptoms. However, those that do usually display one or more of the following: * Light-headedness * Dizziness * Syncope (fainting) Types There are two non-distinct types of second-degree AV block, called ''Type 1'' and ''Type 2''. In both types, a P wave is blocked from initiating a QRS complex; but, in Type 1, there are increasing delays in each cycle before the omission, whereas, in Type 2, there is no such pattern. Typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heart Block
Heart block (HB) is a disorder in the heart's rhythm due to a fault in the natural pacemaker. This is caused by an obstruction – a block – in the electrical conduction system of the heart. Sometimes a disorder can be inherited. Despite the severe-sounding name, heart block may cause no symptoms at all in some cases, or occasional missed heartbeats in other cases (which can cause light-headedness, syncope (fainting), and palpitations), or may require the implantation of an artificial pacemaker, depending upon exactly where in the heart conduction is being impaired and how significantly it is affected. Heart block should not be confused with other conditions, which may or may not be co-occurring, relating to the heart and/or other nearby organs that are or can be serious, including angina (heart-related chest pain), heart attack (myocardial infarction), any type of heart failure, cardiogenic shock or other types of shock, different types of abnormal heart rhythms ( arrhythmias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1951 Deaths
Events January * January 4 – Korean War: Third Battle of Seoul – Chinese and North Korean forces capture Seoul for the second time (having lost the Second Battle of Seoul in September 1950). * January 9 – The Government of the United Kingdom announces abandonment of the Tanganyika groundnut scheme for the cultivation of peanuts in the Tanganyika Territory, with the writing off of £36.5M debt. * January 15 – In a court in West Germany, Ilse Koch, The "Witch of Buchenwald", wife of the commandant of the Buchenwald concentration camp, is sentenced to life imprisonment. * January 20 – Winter of Terror: Avalanches in the Alps kill 240 and bury 45,000 for a time, in Switzerland, Austria and Italy. * January 21 – Mount Lamington in Papua New Guinea erupts catastrophically, killing nearly 3,000 people and causing great devastation in Oro Province. * January 25 – Dutch author Anne de Vries releases the first volume of his children's novel '' Journey Through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1889 Births
Events January–March * January 1 ** The total solar eclipse of January 1, 1889 is seen over parts of California and Nevada. ** Paiute spiritual leader Wovoka experiences a vision, leading to the start of the Ghost Dance movement in the Dakotas. * January 4 – An Act to Regulate Appointments in the Marine Hospital Service of the United States is signed by President Grover Cleveland. It establishes a Commissioned Corps of officers, as a predecessor to the modern-day U.S. Public Health Service Commissioned Corps. * January 5 – Preston North End F.C. is declared the winner of the inaugural Football League in England. * January 8 – Herman Hollerith receives a patent for his electric tabulating machine in the United States. * January 15 – The Coca-Cola Company is originally incorporated as the Pemberton Medicine Company in Atlanta, Georgia. * January 22 – Columbia Phonograph is formed in Washington, D.C. * January 30 – Rudolf, Crown Prince of Austria a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinus Rhythm With 3-to-2 And 2-to-1 Type II A-V Block
Sinus may refer to: Anatomy * Sinus (anatomy), a sac or cavity in any organ or tissue ** Paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: *** Maxillary sinus, is the largest of the paranasal sinuses, under the eyes, in the maxillary bones *** Frontal sinus, superior to the eyes, in the frontal bone, which forms the hard part of the forehead *** Ethmoid sinus, formed from several discrete air cells within the ethmoid bone between the eyes and under the nose *** Sphenoidal sinus, in the sphenoid bone at the center of the skull base under the pituitary gland ** Anal sinuses, the furrows which separate the columns in the rectum ** Dural venous sinuses, venous channels found between layers of dura mater in the brain * Sinus (botany), a space or indentation, usually on a leaf Heart * Sinus node, a structure in the superior part of the right atrium * Sinus rhythm, normal beating on an ECG * Coronary sinus, a vein collecting blood from the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Hay (cardiologist)
John Hay (25 November 1873 – 21 April 1959) was a British cardiologist. He was born in Birkenhead, Lancashire, the son of a Scottish architect and educated at the Liverpool Institute and the Victoria University of Manchester, qualifying M.B. in 1896. From 1900 to 1903 he was medical tutor and registrar at the Liverpool Royal Infirmary. In 1905 he identified a form of second degree AV block. In 1907 he was appointed Assistant Physician and set up the first specialised heart department in the north of England. During World War I he served at the 1st Western General Hospital, becoming a lieutenant-colonel in the Royal Army Medical Corps The Royal Army Medical Corps (RAMC) is a specialist corps in the British Army which provides medical services to all Army personnel and their families, in war and in peace. The RAMC, the Royal Army Veterinary Corps, the Royal Army Dental Corps a .... He was elected a Fellow of the Royal College of Physicians in 1915 and in 1923 delivered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wenckebach
Karel Frederik Wenckebach (; March 24, 1864 – November 11, 1940) was a Dutch anatomist who was a native of the Hague. He studied medicine in Utrecht, and in 1901 become a professor of medicine at the University of Groningen. Later he was a professor at the Universities of Strasbourg (1911–14) and Vienna (1914–29). Contributions in cardiology Wenckebach is primarily remembered for his work in cardiology. In 1899 he provided a description of irregular pulses due to partial blockage of atrioventricular conduction, creating a progressive lengthening of conduction time in cardiac tissue. The condition was referred to as a "second degree AV block" and later named the "Wenckebach phenomenon" and reclassified as Mobitz type I block in Mobitz's 1924 paper. A similar phenomenon can also occur in the sinoatrial node where it gives rise to type I second degree SA block, and this is also known as a Wenckebach block; the two have distinct features on an ECG however. Wenckebach is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PR Interval
In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200 ms in duration. The PR interval is sometimes termed the PQ interval. Interpretation Variations in the PQ interval can be associated with certain medical conditions: * Duration ** A long PR interval (of over 200 ms) indicates a slowing of conduction between the atria and ventricles, usually due to slow conduction through the atrioventricular node (AV node). This is known as first degree heart block. Prolongation can be associated with fibrosis of the AV node, high vagal tone, medications that slow the AV node such as beta-blockers, hypokalemia, acute rheumatic fever, or carditis associated with Lyme disease. ** A short PR interval (of less than 120ms) may be associated with a Pre-excitation syndr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AV Dissociation
Av (also Menachem Av, ; from Akkadian ''ʾAbū'' "father") is the eleventh month of the civil year and the fifth month of the ecclesiastical year on the Hebrew calendar. The name comes from Araḫ Abu, "month of Abu", from the Babylonian calendar. The name ''Ab'' ( ar, آﺏ) also appears in the Arabic language for the month of August in the Levant (see Arabic names of calendar months).The name first appears in Second Temple literature, such as Megillat Taanit. It is one of several months which are not explicitly named in the Hebrew Bible (Tanakh). It is a month of 30 days. ''Av'' usually occurs in July–August on the Gregorian calendar. The Babylonian Talmud, Taanit 29a, states that "when we enter he month of''Av'', our joy is diminished". This is because the darkest events in Jewish history occurred during the first week and a half of this month, particularly the Nine Days which culminate in ''Tisha B'Av'', the 9th of ''Av''. However, there is a minor and largely unknown hol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meiningen
Meiningen () is a town in the southern part of the state of Thuringia, Germany. It is located in the region of Franconia and has a population of around 25,000 (2021)." target="_blank" class="mw-redirect" title="City of Meiningen, citizen service">City of Meiningen, citizen service Jahresrückblick 2021 (year review), PDF (4,4 MB). Meiningen is the capital and the largest town of the district. From 1680 to 1920, Meiningen was the capital of the Duchy (and briefly of the Free State) of . Meiningen is consider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiology
Cardiology () is a branch of medicine that deals with disorders of the heart and the cardiovascular system. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine. Pediatric cardiologists are pediatricians who specialize in cardiology. Physicians who specialize in cardiac surgery are called cardiothoracic surgeons or cardiac surgeons, a specialty of general surgery. Specializations All cardiologists study the disorders of the heart, but the study of adult and child heart disorders each require different training pathways. Therefore, an adult cardiologist (often simply called "cardiologist") is inadequately trained to take care of children, and pediatric cardiologists are not trained to treat adult heart disease. Surgical aspects are not included in ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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