otorrino 2do parcial Flashcards
INICIO DE MANAGEMENT OF ADENOTONSILLAR DISEAS
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Both the tonsils and adenoids are part of the _____ a circular structure of lymphoid tissue located in the nasopharynx and the oropharynx
Waldeyer ring
largest component of the Waldeyer ring
palatine tonsils
The glossopharyngeal nerve lies deep to the superior pharyngeal constrictor and supplies sensation to the tonsil through the tonsillar branch, true or false
true
Acute pharyngotonsillitis may be caused by viral infection (most common) or bacterial infection. It is often difficult to distinguish between the 2 etiologies based on clinical exam. Patients with acute pharyngotonsillitis present with:
fever, malaise, odynophagia, dysphagia, foul breath, and tender lymphadenitis
Tonsillar enlargement due to infection may also manifest as airway obstruction with symptoms including
mouth breathing, snoring, or sleepdisordered breathing. On physical exam tonsillar enlargement, erythema, and exudates may be present
Approximately 70% to 85% of cases of acute pharyngotonsillitis have a ___ etiology
viral
Common viral pathogens include:
adenovirus,
rhinovirus,
coronavirus,
EpsteinBarr virus (EBV), cytomegalovirus (CMV), Coxsackievirus
, herpes simplex virus, human immunodeficiency virus (HIV)
, and influenza virus
Associated signs and symptoms may help determine the specific virus responsible, for example:
- conjunctival involvement is associated with adenovirus
- he presence of herpangina—or ulcerative vesicles over the tonsils—may be due to Coxsackievirus or herpes virus
- profuse lymphadenopathy is typically seen with EBV, CMV, or HIV
Treatment for most viral infections is generally supportive, including:
hydration, antipyretics, and pain relievers as needed—and management does not require further testing
tx in asymptomatic, px should drink water, antihistamine for posterior mucus discharge,
NSAIDs
antifludes: Amantadina/Clorfenamina/Paracetamol
EBV belongs to the herpes family of viruses and causes acute pharyngitis as a part of infectious mononucleosis. EBV is transmitted orally and manifests as:
high fever, generalized malaise, lymphadenopathy, hepatosplenomegaly, and pharyngitis.
The tonsils are often severely enlarged, sometimes to the point of compromising the airway, and are covered with an extensive grayishwhite exudate.
distinguishing feature of EBV in clinical exam:
lymphoid hypertrophy, especially with involvement of the posterior nodes
Influenza presents with
sore throat, fever, and cough, similar to other viral illnesses.
most common cause of acute bacterial pharyngotonsillitis in children:
Group A betahemolytic streptococcus (GABHS)
“Strep throat” is a very common disease among adolescents and children. Symptoms include:
fever, sore throat, cervical lymphadenopathy, dysphagia, and odynophagia
Group A betahemolytic streptococcus physical examination typically reveals:
tonsillar and pharyngeal erythema with purulent exudate
standard method for establishing the diagnosis of group A streptococcus pharyngitis in children
Throat culture with a blood agar plate (BAP)
The definitive test for GABHS infection measures:
serum titers of antistreptolysin O (ASO)
standard of care to prevent the development of rheumatic fever in patients with GABHS
Early diagnosis and appropriate antimicrobial treatment
treatment regimen of choice for GABHS
10day course of penicillin V.
Amoxicillin is commonly substituted for penicillin
Complications of GABHS infection:
NONSUPPURATIVE COMPLICATIONS
Scarlet fever occurs secondary to endotoxin production by bacteria during acute streptococcal pharyngotonsillitis.
clinical presentation of Scarlet fever
erythematous rash, fever, lymphadenopathy, dysphagia, and erythematous tonsils and pharynx covered with a yellow membranous film. The tongue may become red with desquamation of the papillae, often described as “strawberry tongue.”
Acute rheumatic fever is a complication that can develop 1 to 4 weeks after an episode of pharyngotonsillitis caused by GABHS. Rheumatic fever results from crossreactive antibodies that are produced in reaction to the streptococcal infection that subsequently affect heart muscle, leading to:
endocarditis, myocarditis, or pericarditis. Once heart tissue damage occurs, little can be done to reverse the process.
Complications of GABHS infection:
SUPPURATIVE COMPLICATIONS
peritonsillar abscess, parapharyngeal abscess, retropharyngeal abscess, and cervical lymphadenitis or abscess
Peritonsillar abscess (orms as a result of the spread of infection from the superior pole of the tonsil into the potential space between the tonsillar capsule and the pharyngeal muscle bed. Common pathogens include aerobes such as GABHS, Staphylococcus aureus, and Haemophilus influenzae, and anaerobes) usually occur unilaterally and patients present with:
severe pain, odynophagia, muffled voice (or “hot potato” voice), and dysphagia
Needle aspiration and incision and drainage should be performed to treat the abscess. In patients with recurrent tonsillitis and recurrent peritonsillar abscesses, a _____ is often recommended.
tonsillectomy
Infection from the tonsil or from a peritonsillar abscess can spread through the superior constrictor muscle into a potential space between the superior constrictor muscle and the deep cervical fascia, forming a:
parapharyngeal space abscess
parapharyngeal space abscess
Patients often present with:
trismus and decreased neck range of motion secondary to inflammation of the adjacent pterygoid and paraspinal muscles. If not treated, the abscess can spread down the carotid sheath and into the mediastinum.
A retropharyngeal abscess may result from spread of a peritonsillar abscess or from infection of the lymph nodes in the retropharyngeal space. It is more common in children and symptoms usually include:
fever, dysphagia, muffled speech, noisy breathing, neck stiffness, and cervical lymphadenopathy.
Pharyngotonsillitis can lead to lymphadenitis, the enlargement and infection of the corresponding draining lymph nodes. Patients present with:
enlarged, warm, erythematous, tender lymph nodes that can progress to suppuration and abscess formation and may require surgical drainage.
Non–group A streptococci have never been shown to cause acute rheumatic fever, true or false:
true
Pharyngeal diphtheria, which is caused by
Corynebacterium diphtheria, is now extremely rare due to the widespread use of childhood immunization
Pharyngeal diphtheria
In addition to the usual symptoms of acute pharyngitis, this disease is characterized by the presence of:
a grayish, firmly adherent pseudomembrane that covers the tonsils and may extend to the nares, uvula, soft palate, and pharynx.
Removal of the pseudomembrane reveals bleeding of the underlying surface.
The disease can spread to the larynx and tracheobronchial tree, potentially compromising the airway.
Exotoxins produced by C. diphtheriae may produce cardiac toxicity and neurotoxicity. The diagnosis is confirmed by:
ulturing the pseudomembrane in Loeffler’s or tellurite selective medium.
Treatment for infection by C. diphtheriae:
diphtheria antitoxin and penicillin or erythromycin.
Treatment should be started immediately, even before confirmation with a culture
atients with exposure to sexually transmitted diseases can develop tonsillar infections with:
Neisseria gonorrhoeae or Treponema pallidum
Gonococcal infections may present as:
exudative pharyngitis
Primary oral syphilis manifests as:
painless chancre on the lips, buccal mucosa, or oropharynx.
Patients with secondary syphilis may present with
bilateral tonsillar hypertrophy and painful oropharyngeal and tonsillar ulcers
Oropharyngeal candidiasis, or “thrush,” is caused by overgrowth of Candida albicans and often presents in patients with a history of:
mmunosuppression, radiation, or altered microflora following longterm broadspectrum antibiotic use
Oropharyngeal candidiasis
Physical examination:
white cottage cheeselike plaques over the pharyngeal mucosa, which bleed if removed with a tongue depressor
Oropharyngeal candidiasis
Clinical diagnosis may be confirmed with
potassium hydroxide staining revealing fungal hyphae
Treatment of oropharyngeal candidiasis:
Initial therapy usually consists of oral hygiene and topical treatment. Some of the available agents include oral nystatin preparations, amphotericin lozenges, and clotrimazole troches.
The most common bacteria isolated in recurrent tonsillitis are
Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae
Current recommendations suggest tonsillectomy for patients with
6 to 7 episodes of acute tonsillitis in 1 year, 5 episodes per year for 2 consecutive years, or 3 episodes per year for 3 consecutive years.
Tonsilloliths are microbial biofilms that form within tonsillar crypts and are associated with halitosis and chronic cryptic tonsillitis. Patients may present
foreign body sensation in the throat and expressible, hard white masses on their tonsils.
Complete or intracapsular tonsillectomy is a treatment option for chronic cryptic tonsillitis in adults.
Paradise criteria for tonsillectomy
PREGUNTA DE EXAMEN!!
Chronic tonsillitis is diagnosed when a sore throat is present for at least __ months and is associated with:
3 months
onsillar inflammation, halitosis, and persistent tender cervical adenopathy
A polymicrobial population—including _________—is responsible for most cases of chronic tonsillitis
Staphylococcus aureus, Haemophilus influenza, and Bacteroides species
treatment for chronic tonsillitis
Antibiotics effective against anaerobes and betalactamase producing organisms, such as clindamycin or amoxicillin clavulanate, can be used for treatment.
***In patients with chronic tonsillitis unresponsive to appropriate antimicrobial therapy, tonsillectomy is indicated.
3 big indications for tonsillectomy
● Infections (paradise criteria)
● Obstructive (p ej adenoid hypertrophy)
● Neoplasia
Indications for tonsillectomy
○ Never take a biopsy of the tonsils
*Centro criteria para saber si es viral o bacteriano
Hypertrophy of lymphoid tissue can occur in response to colonization with normal flora, exposure to pathogenic microorganisms, or as a reaction to environmental factors. Adenoid hypertrophy usually presents as:
nasal obstruction, rhinorrhea, and hyponasal speech. Tonsillar enlargement can cause snoring, dysphagia, and either a hypernasal or muffled voice
*Lateral neck soft tissue radiography can be helpful in evaluating hypertrophic adenoids.
Chronic adenotonsillar hypertrophy is commonly associated with
sleepdisordered breathing in children, with symptoms ranging from upper airway obstruction to obstructive sleep apnea syndrome (OSAS). Upper airway obstruction can manifest as loud snoring, chronic mouth breathing, and secondary enuresis.
A history of witnessed apneic episodes, hypersomnolence or hyperactivity, frequent nighttime awakenings, poor school performance, and a general failure to thrive are common manifestations of _____ in children
obstructive sleep apnea syndrome (OSAS)
A tonsil grading system is often used to describe tonsillar size
Tonsil grades.
( A ) Grade 0 tonsils.
( B ) Grade I tonsils.
( C ) Grade II tonsils.
( D ) Grade III tonsils.
( E ) Grade IV tonsils.
ESTUDIAR FOTO
Symptomatic asymmetric tonsillar hypertrophy is a physical finding that should raise concern for possible:
tonsillar neoplasm
The likelihood of a malignant process is increased when tonsillar asymmetry is associated with:
rapid enlargement, constitutional symptoms, atypical tonsillar appearance, ipsilateral cervical lymphadenopathy, or a history of previous malignant growths.
tonsillar lymphoma should be considered when unilateral tonsillar enlargement is present in an:
immunocompromised child or when acute asymmetric tonsillitis is unresponsive to medical therapy.
Management when asymmetry is accompanied by a suspicious clinical course or history:
tonsillectomy should be performed to provide tissue for biopsy
most common primary tonsillar neoplasms:
Lymphoma and squamous cell carcinoma (SCC)
Benign tumors of the tonsil are rare and include:
lipomas, fibromas, and schwannomas
indications for tonsillectomy and adenoidectomy
estudiar del libro
one of the important complications of tonsillectomy:
Bleeding
There must be a good hemostasis/cauterization
Herpangina
Coxsackie → (hand, teeth and mouth), frequent in children
Characteristics
- Ulcers on the soft palate it’s an effect from the fever
- 5-7 days
- red with circles gray
Everytime we have ulcers we have to think in a viral infection (bacterial not usually causes ulcers)
Do NOT give aciclovir