Page 1 of 1: ENT,Quinsy

drada · Credits: 45652 My Scrapbook My Reading List 2 Books

A 7 yr old boy presents with peritonsillar abscess with trismus.The best treatment is
a]immediate abcess drain orally
b]drain externally
c]systemic antibiotics for 48 hrs and drain
d]tracheostomy

here ans given is [c]...BUT according to Dhingra,when ever ,pt presents with abscess it should drained internally...isint it[a]

legaldevil · Credits: 2816 My Scrapbook

Peritonsillar abscess is the most common deep infection of the head and neck that occurs in adults. This infection begins as a superficial infection and progresses into tonsillar cellulitis. A peritonsillar abscess forms at the most advanced stage. Early diagnosis of the abscess allows appropriate treatment to begin before the abscess spreads into the surrounding anatomic structures. A family physician who has appropriate training can diagnose and treat the majority of patients with peritonsillar abscess.

Epidemiology

Peritonsillar abscess is most common in persons 20 to 40 years of age. Young children are seldom affected unless they are immunocompromised, but the infection can cause significant airway obstruction in children.1,2 This infection affects males and females equally. Evidence shows that chronic tonsillitis or multiple trials of oral antibiotics for acute tonsillitis may predispose persons to the development of a peritonsillar abscess.3

The most common organisms associated with peritonsillar abscess are Streptococcus pyogenes (group A beta-hemolytic streptococcus) and Fusobacterium.

Anatomy

The normal Anatomy of the palatine tonsils and their surrounding tissues is depicted in Figure 1. The two tonsillar pillars define the palatine tonsils anteriorly and posteriorly. The glossopalatine and the pharyngopalatine muscles are the major muscles of the anterior and posterior pillars, respectively. The tonsil lays in the depression between the palatoglossal and the palatopharyngeal arches.4

During the embryonic stage, the tonsils arise from the second pharyngeal pouch as buds of endodermal cells.5 Shortly after birth, the tonsils grow irregularly and reach their ultimate size and shape, depending on the amount of lymphoid tissue present.

Each tonsil has an irregular number of ingrowths of the surface epithelium known as tonsillar crypts. The tonsils are surrounded by a capsule, a specialized portion of the intrapharyngeal aponeurosis that covers the medial portion of the tonsils and provides a path for blood vessels and nerves through its fibers.6

Common Organisms Associated with Peritonsillar Abscess

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Aerobic Anaerobic
Streptococcus pyogenes Fusobacterium
Staphylococcus aureus Peptostreptococcus
Haemophilus influenzae Prevotella
Neisseria species
Bacteroides

Common Symptoms and Physical Examination Findings in Patients with Peritonsillar Abscess

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Symptoms
Progressively worsening sore throat, often localized to one side
Fever
Dysphagia
Otalgia
Odynophagia Physical examination
Erythematous, swollen tonsil with contralateral uvular deviation
Trismus
Edema of palatine tonsils
Purulent exudate on tonsils
Drooling
Muffled, "hot potato" voice
Cervical lymphadenopathy

Peritonsillar abscesses form in the area between the palatine tonsil and its capsule. If the abscess progresses, it can involve the surrounding Anatomy , including the masseter muscles and the pterygoid muscle. If severe, the infection can also penetrate the carotid sheath.

Etiology

The most common organisms associated with peritonsillar abscess are listed in Table 1. Streptococcus pyogenes (group A beta-hemolytic streptococcus) is the most common aerobic organism associated with peritonsillar abscess. The most common anaerobic organism is Fusobacterium. For most abscesses, a mixed profile of both aerobic and anaerobic organisms cause the infection.7-9

Diagnosis

The most important information to obtain during the patient's history is the location of the pain in the throat, which suggests the location of the abscess. A thorough history should determine if the patient has a fever, has difficulty swallowing or has possibly ingested foreign objects. During the physical examination, trismus (inability or difficulty in opening the mouth) is often present because of inflammation of the pharyngomaxillary space and pterygoid muscle.1 A distinguishing feature on physical examination is the inferior medial displacement of the infected tonsil with a contralateral deviation of the uvula (Figure 2).3 In addition, many patients will have a thickened, muffled voice often described as having a "hot potato" quality. The most common findings from the history and physical examination are summarized in Table 2.

Table 3 outlines the differential diagnosis of peritonsillar abscess. Peritonsillar cellulitis is present when the area between the tonsil and its capsule is erythematous but lacks pus. The presence of mononucleosis can be determined by obtaining a complete blood count and a heterophile screen. During the physical examination, the physician should perform a thorough intraoral inspection to rule out an infection of the salivary glands, teeth, and mastoid bone, as well as neoplasms, cervical adenitis, and aneurysm of the internal carotid artery.

A thorough history and physical examination can often determine a diagnosis of peritonsillar abscess, but radiologic tests may be helpful in differentiating peritonsillar abscess from other diagnoses. Ultrasonography is the easiest and most useful tool. The ultrasound can be obtained transcutaneously by placing the transducer over the submandibular gland and scanning the entire tonsillar area.

If there is a peritonsillar abscess, the abscess formation will be demonstrated as an echo-free cavity with an irregular, well-defined circumference.10 The ultrasound can also be performed intraorally by placing the patient in a sitting position. With the use of a tongue blade, the probe can be used to scan the tonsils for echo-free areas. The presence of trismus may limit the ability to use intraoral sonography.11,12

The use of computed tomographic (CT) scanning may also be helpful in identifying an abscess formation. The CT scan should be obtained with contrast to allow for optimal viewing of the abscess. An area of low attenuation on a contrast-enhanced CT scan is suggestive of abscess formation. Other indications of a peritonsillar abscess that are present on CT scanning include diffuse swelling of the soft tissues with loss of the fat planes and the presence of edema in the surrounding area.13,14

NEEDLE ASPIRATION

The gold standard for diagnosis of peritonsillar abscess remains the collection of pus from the abscess through needle aspiration. To obtain this sample, the area should be anesthetized with 0.5 percent benzalkonium (Cetacaine spray) followed by a gargle of 2 percent lidocaine (Xylocaine) with epinephrine. A no. 18-gauge spinal needle attached to a 10-mL syringe can be used to obtain material from the suspected abscess. Figure 3 illustrates this procedure being performed. The fluid obtained should be sent to the laboratory for gram stain and culture to determine the appropriate treatment regimen.

A needle aspiration of a peritonsillar abscess should only be performed by properly trained physicians. Complications of performing the aspiration can include aspiration of pus and blood, and hemorrhage. If the abscess is located in the distal part of the tonsil, puncture of the carotid artery can occur.

Treatment

TABLE 3
Differential Diagnosis of Peritonsillar Abscess

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Peritonsillar cellulitis
Tonsillar abscess
Mononucleosis
Foreign body aspiration
Neoplasms (lymphoma, leukemia) Cervical adenitis
Dental infections
Salivary gland infection
Mastoid infection
Aneurysm of internal carotid artery

The treatment of peritonsillar abscess requires both the selection of appropriate antibiotics and the best procedure to remove the abscessed material. Individualized treatment modalities will result in more successful outcomes.

The choice of antibiotics is highly dependent on both the gram stain and culture of the fluid obtained from the needle aspiration. Penicillin used to be the antibiotic of choice for the treatment of peritonsillar abscess, but in recent years the emergence of beta-lactamase-producing organisms has required a change in antibiotic choice.15 Results of studies16,17 suggest that 500 mg of clindamycin administered twice daily or a second- or third-generation oral cephalosporin be used instead of penicillin.

Another study1 recommends using penicillin as the first-line agent, and, if there is no response within the first 24 hours, adding 500 mg of metronidazole administered twice daily to the regimen. All specimens should be examined by culture for antibiotic sensitivity to ensure appropriate antibiotic coverage.

Three main surgical procedures are available for the treatment of peritonsillar abscess: needle aspiration, incision and drainage, and immediate tonsillectomy. Three recent studies have compared needle aspiration with incision and drainage for the treatment of peritonsillar abscess.16-18

In one study,16 52 consecutive patients who had a positive needle aspiration of a peritonsillar abscess were randomized into two groups comparing needle aspiration alone with incision and drainage.8 There were no significant differences between the two groups in duration of symptoms or initial treatment failure. The results indicated that no further surgical management for peritonsillar abscess was required following the initial needle aspiration. Another study17 conducted in 1991 reported similar results.

A retrospective study18 of 160 patients compared patients who received needle aspiration alone with patients who had undergone incision and drainage. In this study, only eight patients (0.5 percent) required incision and drainage after multiple failed needle aspirations. The authors concluded that needle aspiration alone was an appropriate treatment regimen, but a higher rate of recurrence occurred that could ultimately require incision and drainage.

The gold standard for diagnosis of peritonsillar abscess is the collection of pus from the abscess through needle aspiration.

Controversy remains over the necessity of incision and drainage versus needle aspiration alone. However, most otolaryngologists consider incision and drainage to be the gold standard for treatment. An otolaryngologist should usually be consulted to perform this procedure unless the treating physician has the appropriate experience and training. A review of the incision and drainage technique for peritonsillar abscess is beyond the scope of this article.

Most experts agree that immediate tonsillectomy is not required for treatment of peritonsillar abscess. Tonsillectomy should be performed three to six months after the abscess in patients who have recurrent tonsillitis or peritonsillar abscess. If the family physician is inexperienced in treating peritonsillar abscess, an otolaryngologist should be consulted at the time of the diagnosis to determine the appropriate surgical treatment.

Members of various medical faculties develop articles for "Practical Therapeutics." This article is one in a series coordinated by the Department of Family Medicine at the University of Michigan Medical School, Ann Arbor. Guest editor of the series is Barbara S. Apgar, M.D., M.S., who is also an associate editor of AFP.

The author wishes to thank Barbara Apgar, M.D., M.S., and Tara Hogue for assistance in the preparation of the manuscript and Clark Malcolm for editorial assistance.

The author indicates that he does not have any conflicts of interest. Sources of funding: none reported.

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drsmita_s · Credits: 18609 My Scrapbook

this question is from AIPGE '[snip] and mudit khanna has given the answer as option a) immediate drainage of abscess orally. the reference is from harri 15th. harri 16th does not give the same specific lines. will try to find some more reference.

BRAVO · Credits: 45310 My Scrapbook

but the guy is having trismus how will you drain it orally best will be to give systemic antibiotics for 48 hrs,let the trismus decrease and then drain.

legal devil please try to make ur answer short and sweet...

drsmita_s · Credits: 18609 My Scrapbook

after doing some net search, i've found that :
Trismus (due to involvement of the internal pterygoid muscles) is reported in up to two thirds of cases. (from E medicine).

Wikipedia says:
Peritonsillar abscess, also called PTA or Quinsy, is a recognised complication of tonsillitis and consists of a collection of pus beside the tonsil (peritonsillar space).

It causes great pain, fever, malaise and is associated with tender, swollen lymph nodes. Whilst these signs may be present in tonsillitis itself, a PTA should be specifically considered if there is limited ability to open the mouth (trismus).Treatment is, as for all abscesses, through surgical incising and drainage of the pus, thereby relieving the pain of the stretched tissues. Antibiotics are also given to treat the infection.

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Trismus is often severe and may preclude a complete examination unless a sphenopalatine block is employed.
Treatment -
Needle aspiration or incision and drainage of the peritonsillar space.
Antibiotic coverage (penicillin) parenterally followed by p.o. administration for at least ten days.

drsmita_s · Credits: 18609 My Scrapbook

the crux is that trismus may be present in a patient of quinsy ,but it does not mean that we do not drain the abscess immediately.
ordinarily, without any trismus ,the procedure followed is - give anaesthetic spray , then infiltration block with 2% lidocaine with adrenaline and then go ahead with needle aspiration or I&D.

in case trismus is present, go for nerve block and then drain the abscess.

however there is controversy over needle aspiration alone or combined with incision and drainage. the gold standard is surely incision and drainage by an otolaryngologist under antibiotic cover.

BRAVO · Credits: 45310 My Scrapbook

its definately incision and drainage thats what we do routinely,but in a operation theatre and with a thick suction tip.

jabby · Credits: 3703 My Scrapbook

INCISION AND DRAINGE

captainprasun · Credits: 1641 My Scrapbook

incision and drainage ...no doubts

hariompriyom · Credits: 1815 My Scrapbook

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