Tonsillectomy

Tonsillectomy is mainly undertaken for sleep apnea and recurrent or chronic tonsillitis. A randomised controlled trial of tonsillectomy versus medical treatment (antibiotics and pain killers) in adults with frequent tonsillitis found that tonsillectomy was more effective and cost effective. It resulted in fewer days with sore throat. Sore throat Surgery is not recommended for those with fewer than seven documented throat infections in the last year, fewer than five each year for the last two years, or fewer than three each year for three years. Specifically one review of five randomized controlled trials, found a decrease from 3.6 to 3.0 episodes in the year following surgery. Obstructive sleep apnea Tonsillectomy improves obstructive sleep apnea (OSA) in most children. Other There is no good evidence for other uses such as tonsil stones, bad breath, trouble swallowing, and an abnormal voice in children. ==Complications==

While generally safe, tonsillectomy may result in several complications, some of which are serious. In rare cases, tonsillectomy may also cause damage to the teeth (because of the clamp that is placed in the mouth during surgery), larynx and pharyngeal wall, aspiration, respiratory compromise, laryngospasm, laryngeal edema and cardiac arrest. Also in veterinary surgery, bleeding was a common complication. A meta-analysis reported that frequency of bleeding after tonsillectomy across different techniques did not differ. It does not appear to affect the long-term risk of infections in other areas of the body. Some studies have found small changes in immunoglobulin concentrations after tonsillectomy, but these are of unclear significance. A 2025 meta-analysis found that tonsillectomy increases the risk of both Crohn's disease and ulcerative colitis, with a hazard ratio of 1.37 and 1.29 respectively. There is an association suggesting an increase in the risk of developing multiple sclerosis if done before the age of 20. A meta-analysis published in 2020 indicated a statistically significant association between a history of tonsillectomy and the development of Hodgkin's disease. A meta-analysis from 2022 concluded that a history of tonsillectomy is associated with an increased risk of breast cancer. The relationship between childhood tonsillectomy and the development of other cancer types in adulthood remains unclear. ==Surgical procedure==

For the past 50 years at least, tonsillectomy has been performed by dissecting the tonsil from its surrounding fascia, a so-called total, or extra-capsular tonsillectomy. Problems, including pain and bleeding, led to a recent resurgence in interest in sub-total tonsillectomy or tonsillotomy, which was popular 60 to 100 years ago, in an effort to reduce these complications. The generally accepted procedure for 'total' tonsillectomy uses a scalpel and blunt dissection, electrocautery, or diathermy. Harmonic scalpels or lasers have also been used. Bleeding is stopped with electrocautery, ligation by sutures, and the topical use of thrombin, a protein that induces blood clotting. The most effective surgical approach has not been well studied. which results in minimal or no damage to surrounding healthy tissue. A Coblation tonsillectomy is carried out in an operating room setting, with the patient under general anesthesia. Tonsillectomies are generally performed for two main reasons: tonsillar hypertrophy (enlarged tonsils) and recurrent tonsillitis. It has been claimed that this technique results in less pain, faster healing, and less postoperative care. However, review of 21 studies gives conflicting results about levels of pain, and its comparative safety has yet to be confirmed. This technique has been criticized for a higher than expected rate of bleeding presumably due to the low temperature which may be insufficient to seal the divided blood vessels but several papers offer conflicting (some positive, some negative) results. More recent studies of coblation tonsillectomy indicate reduced pain and otalgia; less intraoperative or postoperative complications; lesser incidence of delayed hemorrhage, more significantly in pediatric populations, less postoperative pain and early return to daily activities, fewer secondary infections of the tonsil bed and significantly lower rates of secondary hemorrhage. Unlike the electrosurgery procedure, Coblation Tonsillectomy generates significantly lower temperatures on contacted tissue. Long-term studies seem to show that surgeons experienced with the technique have very few complications. • Harmonic scalpel: This medical device uses ultrasonic vibrating of its blade at a frequency of 55 kHz. Invisible to the naked eye, the vibration transfers energy to the tissue, providing simultaneous cutting and coagulation. The temperature of the surrounding tissue reaches 80 °C(176 °F) Proponents of this procedure assert that the result is precise cutting with minimal thermal damage. • Thermal Welding: A new technology which uses pure thermal energy to seal and divide the tissue. The absence of thermal spread means that the temperature of surrounding tissue is only 2–3 °C higher than normal body temperature. Clinical papers show patients with minimal post-operative pain (no requirement for narcotic pain-killers), zero edema (swelling), plus almost no incidence of bleeding. Hospitals in the US are advertising this procedure as "Painless Tonsillectomy". Also known as Tissue Welding. • Carbon dioxide laser: When a laser is used to perform tonsillectomy, it can be under local anaesthetic with anaesthetic spray only, called tonsillotomy (or tonsil resurfacing or partial tonsillectomy), or it can be performed under general anaesthetic when it is called intra-capsular tonsillectomy, using an operating microscope for magnification. The carbon dioxide laser in scanning mode is an excellent vapouriser of tissue, and in conjunction with a computerised pattern generator and operating microscope with micromanipulator, it can result in near total removal of tonsil tissue whilst preserving the capsule of the tonsil. This leads to a significantly reduced bleeding and pain rate. The local anaesthetic technique takes around 10 minutes, the general around 20 minutes depending on the size of the tonsils - the bigger they are, the longer it takes. The general anaesthetic operation has a revision rate of 1:50, the local anaesthetic tonsillotomy 1:4.5. This is different from procedures where a laser is used to reduce or resurface the tonsils (e.g., laser cryptolysis). Providing the absence of certain contraindications such as sensitive gag reflex, LAST can be performed under local anesthetic as an outpatient procedure. A carbon dioxide laser is commonly used, and is swept over each tonsil 8–10 times. The smoke is aspirated out of the mouth to prevent smoke inhalation. Often, more than one procedure is required, each lasting about 20 minutes. Due to the frequent requirement for multiple sessions, this treatment may work out more expensive than a single session tonsillectomy. A degree of patient compliance is required, making it unsuitable for young children and anxious persons, who risk harm if they move during the procedure. • Microdebrider: The microdebrider is a powered rotary shaving device with continuous suction often used during sinus surgery. It is made up of a cannula or tube, connected to a handpiece, which in turn is connected to a motor with foot control and a suction device. The endoscopic microdebrider is used in performing a partial tonsillectomy by partially shaving the tonsils. This procedure entails eliminating the obstructive portion of the tonsil while preserving the tonsillar capsule. A natural biologic dressing is left in place over the pharyngeal muscles, preventing injury, inflammation, and infection. The procedure results in less post-operative pain, a more rapid recovery, and perhaps fewer delayed complications. However, the partial tonsillectomy is suggested for enlarged tonsils, not those that incur repeated infections. Medications A single dose of the corticosteroid drug dexamethasone may be given during surgery to prevent post-operative vomiting. A dose of dexamethasone during surgery prevents vomiting in one out of every five children. A dose of dexamethasone may help children return to a normal diet more quickly and have less post-operative pain. Antibiotics are not suggested to be used routinely following tonsillectomy. ==Post-surgery care==

A sore throat will persist for approximately two weeks following surgery, while pain following the procedure is significant and may necessitate a hospital stay. Recovery can take from 7 to 10 days and proper hydration is very important during this time, since dehydration can increase throat pain, leading to a circle of poor fluid intake. Tonsillectomy appears to be more painful in adults than children. Controlling the pain following tonsillectomy is important to ensure that people can start eating again normally following the procedure. At some point, most commonly 7 to 11 days after the surgery (but occasionally as long as two weeks after), bleeding can occur when scabs begin sloughing off from the surgical sites. The overall risk of bleeding is approximately 1–2%. It is higher in adults, especially males over age 70, and three-quarters of bleeding incidents occur on the same day as the surgery. Approximately 3% of adults develop bleeding at this time, which may sometimes require surgical intervention. Recommendations for pain management include ibuprofen and paracetamol (acetaminophen). Further research is required to determine if mouth rinses, mouthwashes and sprays help improve recovery following surgery. Some surgeons recommend starting with a soft diet for two weeks before advancing to a normal diet. This is to prevent any sharp foods from potentially irritating the tonsillar fossae during the healing stage and provoking a bleed. == Rates ==

There are variations in tonsillectomy rates, both between and within countries. In 2006, English Chief Medical Officer Liam Donaldson revealed that unnecessary tonsillectomies and unnecessary hysterectomies combined cost the British National Health Service 21 million pounds a year. The rise in adenotonsillectomies for sleep apnea in the USA has been greater than the decline in tonsillectomies for sore throat. Evidence-based indications In 2018, a study of the medical records of 1.6 million UK children found 15,760 had sufficient sore throats to justify tonsillectomy, and 13.6% (2,144) underwent surgery. In the UK therefore, most children who undergo tonsillectomy probably do not benefit and most children who might benefit do not undergo tonsillectomy. Regarding tonsillectomy, a 1968 Canadian study pointed out that ENT specialists working on a fee-for-service programme were twice as likely to perform a tonsillectomy than those who were not. In 2009 then US President Obama remarked: ==History==

Tonsillectomies have been practiced for over 2,000 years, with varying popularity over the centuries. The earliest mention of the procedure is in "Hindu medicine" from about 1000 BCE. Roughly a millennium later, the Roman aristocrat Aulus Cornelius Celsus (25 BCE–50 CE) described a procedure whereby using the finger (or a blunt hook if necessary), the tonsil was separated from the neighboring tissue before being cut out. For example, a study conducted in 1934 found that 61% of 1,000 New York schoolchildren had been tonsillectomized; doctors recommended surgery for all but 65 of the remaining children. Complications were often simply accepted. Because of the theory of focal infection, many surgeons believed that not only enlarged tonsils, but all tonsils should be removed. Controversy surrounding tonsillectomy increased further in the United Kingdom in the 1960s because of the financial costs associated with the number of surgeries being performed and because of unexplainable variations in tonsillectomy rates between geographic regions and between social classes. In the media, tonsillectomy was criticised for being "fashionable" or a "status symbol". There was also an increasing concern regarding the psychological and physical suffering of young children as a result of surgery. Furthermore, opponents of surgery argued that the tonsils should be retained whenever possible because of their role in the immune system and that the benefits of surgery were marginal. In the 1970s, tonsillectomy rates in the United Kingdom started to decline after several studies concluded that tonsillectomy was not as effective for sore throats and many other indications as previously thought. Tonsillectomy rates in the United States have declined since 1978, when experts of the National Institutes of Health concluded that there was insufficient evidence that the benefits of tonsillectomy outweighed the risks and therefore recommended more research, which subsequently led to stricter guidelines. As doctors took a more conservative approach towards tonsillectomy, parental pressure became one of the most important reasons for surgery. == References ==