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单词 mastitis
释义

mastitis


mas·ti·tis

M0144500 (mă-stī′tĭs)n. Inflammation of a mammary gland or udder, usually caused by infection.
mas·tit′ic (-tĭt′ĭk) adj.

mastitis

(mæˈstaɪtɪs) n (Pathology) inflammation of a breast or an udder

mas•ti•tis

(mæˈstaɪ tɪs)

n. inflammation of the breast or udder. [1835–45; < Greek mast(ós) breast + -itis] ma•stit′ic (-ˈstɪt ɪk) adj.
Thesaurus
Noun1.mastitis - inflammation of a breast (or udder)mastitis - inflammation of a breast (or udder)inflammation, redness, rubor - a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat
Translations
mastitemastite

mastitis


mastitis

(măstī`tĭs), inflammation of the breast. Mastitis most commonly occurs in nursing mothers between the first and third weeks after childbirth, usually of the first child. It is an infection that results when bacteria enter through cracked nipples; the organisms may already be in the body and attack breast tissue weakened by injury. The breast becomes swollen and painful and a high fever may be present. Mastitis is usually easily treated with antibioticsantibiotic,
any of a variety of substances, usually obtained from microorganisms, that inhibit the growth of or destroy certain other microorganisms. Types of Antibiotics
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. In severe cases, when an abscessabscess,
localized inflamation associated with tissue necrosis. Abscesses are characterized by inflamation, which is due to the accumulation of pus in the local tissues, and often painful swelling.
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 forms within the breast, the suckling baby must be weaned completely. Chronic cystic mastitis is a common, noninfectious but often painful condition in women between 30 and 50 years old, in which cystic nodules develop in the breasts, giving them a lumpy appearance. It sometimes results from a hormonal imbalance. Biopsy may be necessary to distinguish the condition from breast cancer. Another type of mastitis may occur during puberty, and another is associated with other infectious diseases, e.g., mumps and tuberculosis.

Mastitis

 

inflammation of the mammary gland.

Mastitis occurs mainly in primiparas during nursing, but it may also develop before labor or be unrelated to pregnancy and childbirth. Less frequently, it is seen in girls and even men. A particular form is mastitis neonatorum, a coarsening of the breast in the newborn (of either sex) associated with the passage of lactogenic hormones from the mother’s blood.

The course of mastitis is acute (less commonly, chronic). The main causes are stagnation of the milk, poor emptying of the gland during feeding, and cracks in the nipple. Under these conditions microbes penetrate into the gland through the lymphatic and lactiferous ducts and cause its inflammation. The causative agents (staphylococcus or streptococcus, for example) come into contact with the gland by way of the infant’s mouth or dirty linens, or as a result of inadequate breast hygiene during pregnancy and nursing. Cracks form when the skin surrounding the nipples loses its elasticity, owing to poor preparation of the nipples before childbirth or incorrect nursing technique.

The symptoms of mastitis are induration (coarsening) of the breast, reddening of the skin, severe pain, and elevated temperature. As the inflammation progresses, the skin becomes taut and hot to the touch. The formation of an abscess under the skin or within or behind the breast is characterized by softening of the induration (infiltrate) and elevation of the body temperature. Nursing becomes very painful, and pus sometimes appears in the milk. Restricting or halting breast feeding intensifies the inflammation. If the patient’s resistance is low or if treatment is delayed or inappropriate, the process may become phlegmonous or even gangrenous.

Treatment of mastitis in the initial stage involves the application of cold compresses to the breast, the administration of antibiotics and Novocain block, and the complete evacuation of milk from the breast (breast feeding systematically and thoroughly drawing off the milk). In the event of suppuration, the abscess is lanced, nursing from the affected breast is halted, and the milk is drawn off with a breast pump. The condition is prevented by preparing the nipples for nursing and treating cracks when they form. The milk can be kept from stagnating by drawing it off after each feeding. The rules of breast feeding should be strictly observed. The mother’s hands and nipples should be kept clean, and the infant must grasp the nipple completely, together with the skin around it. Mastitis neonatorum disappears in three or four weeks without treatment. Fluid should not be forced from the breasts. The strictest cleanliness is essential.

REFERENCE

Voino-Iasenetskii, V. F. Ocherki gnoinoi khirurgii, 3rd ed. Moscow-Leningrad, 1956.A. B. GALITSKIIIn animals. The females of all animal species—especially cows and goats during steaming up and in the first few weeks after parturition—are vulnerable to mastitis. Predisposing factors include bruises, injuries to the udder, misuse of milking machines, and diseases of the gastrointestinal tract and birth canal. Clinical symptoms vary with the severity of the condition and include systemic inhibition, elevated body temperature, sharp decline in milk yields, and induration and tenderness of the affected part of the udder. When the affected quarters of the udder are milked, clots and flakes of casein appear in the milk. In severe cases there is a watery exudate with flaky clots (sometimes a mixture of pus and blood).
Sick animals should be allowed to rest. The quantity of succulent fodder in their diet should be reduced. Antimicrobial agents should be administered internally and topically. Cold and hot applications, iontophoresis, and massage may be prescribed. Animal mastitis may be prevented by breeding cows suitable for milking by machine. Other preventive measures include a balanced diet, a proper milking schedule, timely and correct steaming up, and regular examinations for the latent condition.
Sheep and goats also suffer from infectious mastitis, caused by the specific pathogens Bad mastidis ovis and Bact. mastidis capri and affecting primarily dams giving birth for the first time. Sick and convalescent animals are the sources of the causative agent. Lactating animals become infected after the pathogen enters the teat canal or injured udder tissue. The disease has severe clinical symptoms and often ends in death. Animals that recover acquire permanent immunity.

REFERENCE

Heidrich, H., and W. Renk. Mastity sel’skokhoziaistvennykh zhivotnykh i bor’ba s nimi. Moscow, 1968. (Translated from German.)

mastitis

[ma′stīd·əs] (medicine) Inflammation of the breast.

mastitis

inflammation of a breast or an udder

mastitis


Mastitis

 

Definition

Mastitis is an infection of the breast. It usually only occurs in women who are breastfeeding their babies.

Description

Breastfeeding is the act of allowing a baby to suckle at the breast to drink the mother's milk. In the process, unaccustomed to the vigorous pull and tug of the infant's suck, the nipples may become sore, cracked, or irritated. This creates a tiny opening in the breast, through which bacteria can enter. The presence of milk, with high sugar content, gives the bacteria an excellent source of nutrition. Under these conditions, the bacteria are able to multiply, until they are plentiful enough to cause an infection within the breast.Mastitis usually begins more than two to four weeks after delivery of the baby. It is a relatively uncommon complication of breastfeeding mothers, occurring in only approximately 3% to 5% of nursing women.

Causes and symptoms

The most common bacteria causing mastitis is called Staphylococcus aureus. In 25-30% of people, this bacteria is present on the skin lining normal, uninfected nostrils. It is probably this bacteria, clinging to the baby's nostrils, that is available to create infection when an opportunity (crack in the nipple) presents itself.Usually, only one breast is involved. An area of the affected breast becomes swollen, red, hard, and painful. Other symptoms of mastitis include fever, chills, and increased heart rate.

Diagnosis

Diagnosis involves obtaining a sample of breast milk from the infected breast. The milk is cultured, allowing colonies of bacteria to grow. The causative bacteria then can be specially prepared for identification under a microscope. At the same time, tests can be performed to determine what type of antibiotic would be most effective against that particular bacteria. Sometimes, women and their physicians confuse mastitis with breast engorgement, or the tenderness and redness that appears when milk builds up in the breasts. Mastitis often can be distinguished if symptoms are accompanied by fever.

Treatment

A number of antibiotics are used to treat mastitis, including cephalexin, amoxicillin, azithromycin, dicloxacillin, and clindamycin. Breastfeeding usually should be continued, because the rate of abscess formation (an abscess is a persistent pocket of pus) in the infected breast goes up steeply among women who stop breastfeeding during a bout with mastitis. Most practitioners allow women to take acetaminophen while nursing, to relieve both fever and pain. As always, breastfeeding women need to make sure that any medication they take is also safe for the baby, since almost all drugs they take appear in the breastmilk. Warm compresses applied to the affected breast can be soothing.

Prognosis

Prognosis for uncomplicated mastitis is excellent. About 10% of women with mastitis will end up with an abscess within the affected breast. An abscess is a collection of pus within the breast. This complication will require a surgical procedure to drain the pus.

Prevention

The most important aspect of prevention involves good handwashing to try to prevent the infant from acquiring the Staphylococcus aureus bacteria in the first place. Keeping the breast clean before breastfeeding also helps prevent infection. Keeping the breasts from becoming engorged may help prevent mastitis by preventing plugging of milk ducts.

Resources

Periodicals

Hager, W. David. "Managing Mastitis: Antibiotics Can Prove Invaluable in the Treatment of Mastitis, but Before You Prescribe Them, It's Important to Distinguish Breast Engorgement from Infectious Mastitis." Contemporary OB/GYN January 2004: 32-41.

Organizations

La Leche League International. 1400 N. Meacham Rd., Schaumburg, IL 60173-4048. (800) 525-3243. http://www.lalecheleague.org.

mastitis

 [mas″ti´tis] inflammation of the breast, occurring in a variety of forms and degrees of severity. fibrocystic disease of the breast" >fibrocystic disease of the breast (called also chronic cystic mastitis) is the most common disorder of the breast resulting from hormonal imbalance. It generally occurs in women between the ages of 35 and 50, is probably related to the activity of the ovaries, and is rare after menopause. Occasionally mastitis becomes so severe as to require a mastectomy" >mastectomy.
Young girls whose breasts are maturing sometimes experience a painful swelling and hardness of the breast, known as puberty mastitis; this is rarely serious and usually resolves within a few weeks. Occasionally a cloudy liquid may be squeezed from the nipples. It is best to wear a brassiere that gives mild support but does not irritate.
A mild inflammation known as stagnation mastitis, or caked breast, may occur during the early lactation period. Glands of the breast can become congested with milk, with formation of painful lumps.
Acute mastitis may occur after childbirth, when it is known as puerperal mastitis. This is an infection that usually results from the presence of staphylococci, or occasionally streptococci, which enter through cracks in the skin of the breast, particularly of the nipples. The breasts are tender, red, and warm and become swollen and painful. The inflammation responds quickly to sulfonamide medicines or other antibiotics, but in some cases an abscess may develop which must be incised and drained.
A galactocele, or milk cyst, sometimes develops during lactation. It is probably caused by obstruction of a duct and can be removed after the baby has been weaned.
There are other types of infectious mastitis not related to lactation. Inflammation of the breast sometimes accompanies mumps, particularly in adults. Tuberculous mastitis usually occurs in young women and accompanies tuberculosis of the lungs or of the cervical lymph nodes. Treatment is with antibiotics, although surgery is sometimes necessary.
A condition that may occur at the time of menopause or later in women who have had children is ectasia" >mammary duct ectasia, or comedomastitis" >comedomastitis, which is distention of the milk-producing ducts caused by the caking of secretions; some of the material may be discharged from the nipple. Eventually this may develop into plasma cell mastitis. The breast may be tender and painful, with lump formation, nipple retraction, change in contour, and possibly a cloudy discharge from the nipple.
chronic cystic mastitis fibrocystic disease of the breast.

mas·ti·tis

(mas-tī'tis), Inflammation of the breast. Synonym(s): mastadenitis [masto- + G. -itis, inflammation]

mastitis

(mă-stī′tĭs)n. Inflammation of a mammary gland or udder, usually caused by infection.
mas·tit′ic (-tĭt′ĭk) adj.

mastitis

Inflammation of breast tissue, which is most often due to bacterial infection—most commonly Staphylococcus aureus, less commonly S epidermidis and streptococci—typically in a background of breast-feeding.
 
Management
Warm wet compresses, oral antibiotics.

mastitis

Breast inflammation, often bacterial, often staphylococcal, often during breast-feeding Management Warm wet compresses, oral antibiotics. See Breast abscess, Plasma cell mastitis.

mas·ti·tis

(mas-tī'tis) Inflammation of the breast.
Synonym(s): mastadenitis.
[masto- + G. -itis, inflammation]

mastitis

Inflammation of the breast. This is commonest during LACTATION and is usually caused by infection with organisms such as Staphylococcus aureus entering through cracks or abrasions in the nipples. There is high fever, redness, hardening and tenderness. Treatment is with antibiotics but an abscess may form which may have to be drained surgically.

mastitis


Related to mastitis: granulomatous mastitis
  • noun

Words related to mastitis

noun inflammation of a breast (or udder)

Related Words

  • inflammation
  • redness
  • rubor
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更新时间:2024/12/23 22:33:46