All articles starting with E

Esophagectomy

Esophagectomy is an operation that removes part or all of the esophagus, usually to treat esophageal cancer, rebuilding continuity with a stomach tube or a segment of intestine.

Esophagitis is inflammation of the esophagus, the tube carrying food from mouth to stomach, causing difficulty swallowing and chest pain, with causes including acid reflux, allergy, pills, and infection.

Esophagogastric anastomosis

Esophagogastric anastomosis is a surgical connection between the remaining esophagus and a stomach fashioned into a conduit, restoring upper gastrointestinal continuity after esophagectomy; it may be hand-sewn or stapled, in the neck or chest.

Esophagogastroduodenoscopy

Esophagogastroduodenoscopy (EGD, upper endoscopy): endoscopic examination of the esophagus, stomach, and duodenum through the mouth. Over 7.4 million performed yearly in the US; developed from the 1932 Wolf-Schindler gastroscope and 1957 Hirschowitz fiberoscope.

Esophagography

Esophagography, commonly called a barium swallow or barium esophagram, is a fluoroscopic study in which the patient swallows barium to outline the esophagus, evaluating dysphagia, motility disorders, rings, strictures, and reflux.

Esophagojejunostomy

Esophagojejunostomy is a surgical anastomosis joining the esophagus to the jejunum, performed chiefly to restore digestive tract continuity after total gastrectomy, usually in the Roux-en-Y configuration.

Esophagoplasty

Esophagoplasty is surgical reconstruction of the esophagus, typically after esophagectomy, using gastric, jejunal, colonic, or ileocolonic conduits when the stomach is unavailable; first jejunal replacement by Roux in 1907, first colonic by Kelling and Vulliet in 1911.

Esophagoscopes

Esophagoscopes are thin, lighted tube instruments, rigid or flexible, for examining the esophagus. Includes Chevalier Jackson's 1890 rigid design, LoPresti's 1964 fiberscope, and 4.5–5.1 mm transnasal office scopes.

Esophagoscopy

Esophagoscopy is an endoscopic examination in which a flexible or rigid scope is passed through the mouth to inspect the esophagus lining, detecting strictures, tumors, varices, and foreign bodies.

Esophagostomy

Esophagostomy, also known as cervical esophagostomy, is a surgical procedure creating an opening between the esophagus and the skin, usually in the lower neck, for salivary diversion or feeding.

Esophagus

Esophagus: muscular tube (~25 cm in humans) between pharynx and stomach with upper and lower sphincters; striated muscle proximally, smooth distally; peristalsis 2–8 cm/s; foregut-derived; site of GERD, achalasia, EoE, Barrett's, and cancer.

Oct 22, 2026

Esoteric Buddhism in Goryeo

Esoteric Buddhism in Goryeo (고려 밀교) is the tantric, mantra-based Buddhism practiced in Korea's Goryeo dynasty (918–1392), which organized it into the Shinin and Chongji schools.

Esoteric Ebb

Esoteric Ebb is a 2026 isometric CRPG by solo Swedish developer Christoffer Bodegård, published by Raw Fury. A Disco Elysium-inspired, D&D dice-driven political mystery about a cleric investigating a tea shop bombing before a city's first election.

Esoteric programming language

An esoteric programming language, or esolang, is a programming language designed not for practical software development but to entertain, to be beautiful, or to make a point about computation.

Esoteric Warfare

Esoteric Warfare is Mayhem's fifth studio album, released June 6, 2014 on Season of Mist. It is the band's first album in seven years and first with guitarist Teloch, a Cold War military-experiments concept with lyrics by Attila Csihar.

Esotropia

Esotropia, also known as cross-eye or convergent strabismus, is a form of strabismus in which one eye deviates inward toward the nose, affecting about 0.67% of people worldwide.

Esox

Esox, the pikes, is a genus of freshwater Esocidae fishes including northern pike (E. lucius), muskellunge (E. masquinongy), pickerels, Amur pike, and southern European species; elongate Holarctic ambush predators.

ESP

ESP, or extrasensory perception, is the parapsychology term for claimed perception without the known senses, including telepathy, clairvoyance, and precognition, studied at Duke from 1930.

ESP Guitars

ESP Guitars is a Japanese guitar and bass manufacturer founded in Tokyo in 1975, known for its ESP and LTD lines and metal artist signature models.

ESP trial

ESP trial: randomized clinical trials of the erector spinae plane block (ESPB) for pain after laparoscopic sleeve gastrectomy in obesity; mixed results, not recommended by 2025 PROSPECT guidelines.

ESP32

The ESP32 is a low-cost, low-power system-on-chip microcontroller from Espressif Systems, launched in September 2016, combining 2.4 GHz Wi-Fi and Bluetooth with one or two 32-bit processor cores.

ESP8266

ESP8266, a low-cost Wi-Fi system on chip from Espressif Systems, launched in May 2014, is now marked as Not Recommended for New Designs in favor of the ESP8664.

Oct 22, 2026

Espaço

Espaço is the short title by which Espaço espanhol, a prose book by Brazilian modernist poet Murilo Mendes, is known in bibliographies; it was written from 1966 to 1969.

Sep 19, 2026

Espaço das Américas

Espaço das Américas is a large concert and events venue in the Barra Funda district of São Paulo, Brazil, opened in 2002 with capacity for up to 8,000 people.

Oct 15, 2026

Espadarte Oil Field

The Espadarte Oil Field is a deepwater Petrobras field in Brazil's Campos Basin, about 110 km off Rio de Janeiro, discovered in 1988 with an estimated 428 million barrels.

Espadrille

The espadrille, also known as the alpargata, is a light casual shoe with a canvas upper and a flexible sole of braided jute, laced around the ankle.

Espagnole sauce

Espagnole (sauce espagnole, brown sauce) is one of Escoffier's five French mother sauces: brown roux, brown stock, mirepoix, and tomato, simmered for hours. Base of demi-glace and brown derivatives such as bordelaise.

Oct 22, 2026

España Boba

España Boba ("Foolish Spain") is the period from 1809 to 1821 when Spain again ruled Santo Domingo, but neglected it until the colony fell into economic ruin.

Espaniola brigade

Espaniola brigade, or "Española," is a Russian volunteer military formation largely made up of football fans fighting in Ukraine on Russia's side, unconnected to the Spanish Civil War's International Brigades.