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Vomiting is a common condition affecting about 50% of pregnant women, with another 25% having nausea. [48] However, the incidence of HG is only 0.3–1.5%. [4] After preterm labor, hyperemesis gravidarum is the second most common reason for hospital admission during the first half of pregnancy. [16]
The vomiting act encompasses three types of outputs initiated by the chemoreceptor trigger zone: Motor, parasympathetic nervous system (PNS), and sympathetic nervous system (SNS). They are as follows: Increased salivation to protect tooth enamel from stomach acids. [12] (Excessive vomiting leads to dental erosion.) This is part of the PNS output.
Esophagitis, esophageal varices, gastritis, cirrhosis or gastric ulcers for example, may bleed and produce coffee-ground vomitus. When unaccompanied by melena, hematemesis or a fall in hemoglobin with corresponding urea rises and creates an unstable reaction, and other causes of coffee ground vomitus need to be elucidated; for example, gastric stasis, bowel obstruction or ileus, that can cause ...
The average age at onset is 3–7 years, with described cases as young as 6 days and as old as 73 years. [20] Typical delay in diagnosis from onset of symptoms is 3 years. [20] Females show a slight predominance over males. [20] One study found that 3 in 100,000 five-year-olds are diagnosed with the condition. [21]
Morning sickness, also called nausea and vomiting of pregnancy (NVP), is a symptom of pregnancy that involves nausea or vomiting. [1] Despite the name, nausea or vomiting can occur at any time during the day. [ 2 ]
Postoperative nausea and vomiting (PONV) is the phenomenon of nausea, vomiting, or retching experienced by a patient in the post-anesthesia care unit (PACU) or within 24 hours following a surgical procedure. PONV affects about 10% of the population undergoing general anaesthesia each year. PONV can be unpleasant and lead to a delay in ...
Cannabinoid hyperemesis syndrome (CHS) is recurrent nausea, vomiting, and cramping abdominal pain that can occur due to prolonged, high-dose cannabis use. [4] [5]CHS is associated with frequent (weekly or more often), long-term (several months or longer) cannabis use; synthetic cannabinoids can also cause CHS.
Gastroenteritis is the main reason for 3.7 million visits to physicians a year in the United States [1] and 3 million visits in France. [81] In the United States gastroenteritis as a whole is believed to result in costs of US$23 billion per year, [82] with rotavirus alone resulting in estimated costs of US$1 billion a year. [1]