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Tonsillectomy
Dr.Satish Kumar Ray
1st year Resident,ENT-HNS
Moderater: Dr.Bikash Gurung
Pokhara Academy of Health Sciences
Overview
• Anatomy
• History
• Indication
• Tonsillectomy techniques
• Steps of tonsillectomy
• Post-operative care
• Complication
Tonsil
• Palatine
• Lingual tonsils
• Adenoids
• Tubal
• Diffuse aggregates of pharyngeal submucosal
lymphoid tissue
↓
Waldeyer’s ring
↓
A complete circle of lymphoid tissue surrounding the
entrance to the gastrointestinal and respiratory tracts
PALATINE TONSIL
• Paired aggregates of lymphoid tissue
• Located pocket between palatoglossus and
palatopharyngeus musclesoverlying folds of
mucosa ↓
Anterior and Posterior tonsillar pillars
• Common structure with lymphoid tissue
elsewhere
↓
• Gastrointestinal and respiratory
tractsadenoids ,Peyer’s patches ,appendix
• The stratified squamous non keratinizing mucosal
covering of the tonsils irregular convoluted
invaginations parenchyma pits or crypts.
• 12–15 crypts medial surface of tonsil.
• One of the cryptsvery large and deep
↓
• crypta magna or intratonsillar cleft.
• Microorganisms, desquamated epithelium and food
debris are frequently present within the crypts
Relation of palatine tonsil
• Medial surfacecrypts
• Lateral surfacefibrous capsuleBetween the
capsule and the bed of tonsil loose areolar
tissue
• Upper poleextends into soft palate medial
surface is covered by a semilunar
foldpotential space called supratonsillar fossa.
• Lower poleattached to the tongue
separated
• from the tongue by a sulcus called
tonsillolingual sulcus
Bed of tonsil
Tonsil is related laterally to its capsule
(1), loose areolar tissue containing paratonsillar vein (2), superior constrictor
muscle (3), styloglossus (4), glossopharyngeal nerve (5), facial
artery (6), medial pterygoid muscle (7), angle of mandible (8) and
submandibular salivary gland (9), pharyngobasilar fascia (10), buccopharyngeal
fascia (11
Blood supply
The tonsil is supplied by five arteries
1. Tonsillar branch of facial artery.
This is the main artery.
2. Ascending pharyngeal artery from
external carotid.
3. Ascending palatine, a branch of
facial artery.
4. Dorsal linguae branches of lingual
artery.
5. Descending palatine branch of
maxillary artery.
VENOUS DRAINAGE
• Drain into paratonsillar vein common facial vein and pharyngeal
venous plexus
LYMPHATIC DRAINAGE
• Drain into upper deep cervical nodes particularly the jugulodigastric
(tonsillar) node situated below the angle of mandible.
NERVE SUPPLY
• Lesser palatine branches of sphenopalatine ganglion (CN V) and
glossopharyngeal nerve provide sensory nerve supply
Normal flora
• Extremely variable in health & disease
• Surface of the tonsil in disease is GABHS
• Other surface organisms include Haemophilus,
Staphylococcus aureus,alpha haemolytic
streptococci, Branhamella sp.,
Mycoplasma,Chlamydia, various anaerobes
and a variety of respiratory viruses.
Function
• Lymphoid germinal centres
submucosallycontain both B and T lymphocytes.
• Responsible for the final differentiation, induced by
exposure to antigen B cells IgG and IgA plasma
cells
• Allow positive selection of B cells
• Generate B cells which express polymeric IgA
migrate to the upper respiratory tract mucosa
↓
associated ‘front line’ mucosal surfaces
HISTORY OF TONSILLECTOMY
Celsus in ‘De Medicina’ (14–37 AD)
• ‘induration’of the tonsils dissection with the
fingernail.
• If not possible grasped with a hook and pulled out
with ‘bistoury’.
Morrel McKenzie
• Improved instrumentation – snares and ‘guillotines’
• popularization of the operation
Sir Felix Semon (1849–1921)
Removed the tonsils several of Queen Victoria’s
grandchildren fashionable in the drawing rooms of the
aristocracy.
The SIGN guidelines
for tonsillectomy
• Based on Paradise criteria
• patients for tonsillectomy both adults and children should meet
all the following criteria
 sore throats are due to tonsillitis
 the episodes of sore throat are disabling and prevent normal
functioning
 seven or more well-documented, clinically significant,
adequately treated sore throats in the preceding year, or
 five or more such episodes in each of the preceding 2 years, or
 three or more such episodes in each of the preceding 3 years
Indications for tonsillectomy
• Recurrent acute tonsillitis
• Peritonsillar abscess
Further indications for tonsillectomy
 In adults with gross tonsil hypertrophy and OSA, or as part of
uvulopalatopharyngoplasty (UPPP) or laser-assisted
uvulopalatoplasty
 Severe haemorrhagic tonsillitis
 Severe infectious mononucleosis with upper airway obstruction
 Large symptomatic tonsoliths (tonsillar Concretions)
 As long-term management of IgA nephropathy
Tonsillectomy can be indicated for biopsy purposes in the
following scenarios
Asymmetrical adult tonsil with normal mucosa in the
absence of cervical adenopathy
Asymmetrical adult tonsil with mucosal abnormality
and or cervical adenopathy
As an oncological procedure for Ca tonsil
For obstructive sleep apnoea (OSA) in children in
conjunction with adenoidectomy
Hypertrophy of tonsil
Tonsillectomy techniques
• Undergoing something of a revolution.
• Dissection tonsillectomy (first described by Edwin Pynchon
in 1890) with haemostasis performed with ties or
diathermy standard
• Recently explosion of different dissection instruments
effort reduce postoperative pain and haemorrhage
Current trials
• Any these techniques is consistently clinically greatly
superior to any other technique
1. Dissection techniques
2. Nondissection techniques
Dissection techniques
 cold dissection techniques sharp/bluntsnares and
haemostasis with ties or diathermy mono or bipolar
 diathermy or electrocautery dissection
Monopolar
Bipolar forceps tonsillectomy
bipolar scissor tonsillectomy
 Radiofrequency/electrosurgery tonsillectomy
somnoplasty tonsillectomy: bipolar thermal
radiofrequency ablation
coblation (plasma-mediated ablation)tonsillectomy
argon plasma coagulator tonsillectomy
 harmonic scalpel (ultrasound) tonsillectomy
 Laser dissection tonsillectomy: CO2 laser, potassium titanyl
phosphate (KTP) and Nd-YAG laser tonsillectomy
Nondissection techniques include:
 guillotine tonsillectomy;
 intracapsular partial tonsillectomy
Tosillectomy technique
PRINCIPLES OF DISSECTION
TONSILLECTOMY
POSITION
• Rose’s position, i.e. patient
lies supine with head
extended by placing a pillow
under the shoulders
• A rubber ring is placed under
the head to stabilize it
• Hyperextension should
always be avoided
The incision
• Tonsil is grasped with Luc's or similar
forceps
• Drawn -medial direction exposing an
area of mucosa medial to the free edge
of the anterior faucial pillar.
• Incision halfway between the upper
and lower 'poles'
• Scissors or other sharp instrument depth
of the surgical 'capsule' of the tonsil.
• Preserve as much as possible of the
mucosa
• Incision downwards to the base of the
tongue and upwards to the upper pole.
Beginning of blunt dissection
• When capsule has been
identified Howarth's nasal
raspatory or similar blunt
dissector separate tonsil
and its capsule
surrounding peritonsillar
tissues
Mobilization of upper pole
• upper pole must first be
mobilized keep the dissector
as close as possible to the
capsule throughout the
dissection.
• 'Digging' into the fossa
bleeding and more
postoperative scarring
Continuing the dissection
• Gripping upper pole
draw the tonsil towards
the midline extends the
dissection by separating
the peritonsillar tissues
capsule, until the lower
pole is approached.
Mobilization of lower pole
• Lower pole of the tonsil there
is a firm fibrous triangular fold
hold up the dissection at
this point.
• Triangular fold cut with
scissors
• Dissection carried on to the
base of the tongue.
Removal of tonsil
• A cold-wire snare is threaded over the
tonsil finally removed by closing the
snare at the level of the tonsillolingual
sulcus.
• This ensures lingual 'tongue' of lymphoid
tissue is removed with the tonsil proper
↓
Failure to do so may result in 'recurrence
Control of haemorrhage
• Most primary bleeding from tonsillectomy
venous
Minor bleeding controlled naturally by the
contraction and retraction of the smaller vessels
occur spontaneously if a gauze swab fossa for
2 or 3 minutes.
• Main paratonsillar vein  'holed' or sectioned
ligated with silk thread (right fossa).
• Minor persistent bleeding from smaller vessels
quickly and effectively with insulated
diathermy forceps (left fossa)
The various dissection techniques
• Developed  minimize tissue trauma
postoperative pain and bleeding
• while remaining simple and of short duration.
• All the techniques have their advocates and
detractors
Diathermy or electrocautery
dissection
• Refers to using a heated instrument to cut or coagulate
tissues.
• Heat generated 150-400˚c
Pros
• significant reduction in intraoperative blood loss and
operating time
Cons
• Increase in haemorrhage, pain and slower healing
The recent Cochrane review identified 22 studies comparing
tonsillectomy by diathermy and dissection
• Reduced intraoperative bleeding but increased pain in the
diathermy group
• Increased risk of secondary haemorrhage
Method of choice in patients at high risk of bacteraemia.
Radiofrequency tonsillectomy
Somnoplasty tonsillectomy
• Use radiofrequency waves at 460 kHz and have a bipolar electrode.
• The electrode has a temperature sensor for adjustment of output
power control of tissue temperature and total energy delivered
• Target temperature held constant at 85˚c
Pros significantly less pain (mucosa is not breached)
Cons trials were too small to make meaningful comments on
haemorrhage rates
Coblation (plasma-mediated
ablation)tonsillectomy
• Using radiofrequency signals electrodisassociation effect to
generate a plasma of excited ions or an ionized field.
• The coblator handpiece electrode as well as an irrigation and
suction channel fragment and suction tissue from the field
• Heat generated  40 -70 ˚c
Pros reduced postoperative pain, more rapid healing and quicker
resumption of normal activities
Cons 3.4 times greater haemorrhage rate than cold steel dissection
bipolar diathermy which was 3.1 times >cold steel dissection.
Argon plasma coagulator tonsillectomy
• Requires an argon plasma coagulation (APC) dissector, an
argon gas source & high frequency voltage generator.
• APC dissector rigid tube with a ceramic tip through which
argon flows to the tip electrode serves as one pole
frequency voltage source
Pros limited penetration & good coagulative properties 
minimizing blood loss & postoperative pain.
less postoperative haemorrhage >diathermy
Cons more complications and longer operating time
Harmonic scalpel (ultrasound)
tonsillectomy
• Two mechanisms to cut and coagulate tissue.
1. sharp blade vibrating at 55.5 kHz over a distance
of 80 mm.
2. The rapid forward and backward motion of the
cutting tip in contact with tissue
fragmentation and separation of tissue planes
Coagulation mechanical disruption hydrogen
bonds and thus protein denaturation
Harmonic scalpel (ultrasound)
tonsillectomy
• Temperature rise frictional
changes(50–100˚c)
• Pros improved visibility
• less force and tissue tension
for incisions >traditional
• Cons intraoperative blood
loss and postoperative
haemorhage rates were
similar
Guillotine tonsillectomy
• most suitable for protuberant tonsils in the
paediatric population
• The tonsil is pushed fully through the
guillotine closed
• All tonsil tissue is through the guillotine and
no anterior pillar mucosa is caught in the
guillotine.
• If the tonsil cannot be completely fitted
through the guillotine abandoned.
• Once the guillotine is closed a minute to
compress vessels in the lower pole before
cutting off the tonsil
Pros less pain and greater speed
Cons  excessive trauma to pillars,
postoperative bleeding from an inadequately removed
lower pole and persistent infection in tonsil remnants
Hemorrhage
Postoperative care
• Introduction
• Postoperative pain & analgesia
• Antiemetic therapy post-tonsillectomy
• Diet post-tonsillectomy
• Adjunctive therapy: local anaesthesia,
antibiotics and steroids
Postoperative care
• Tonsillectomy Discussionday case or overnight stay
–ongoing
Favours
• Economic benefits
• Minimal morbidity
• Low reactionary haemorrhage rate after eight hours
(0.49percent)
• Reasonable ability to control pain and nausea
The criteria for day case tonsillectomy
• an available competent adult at home to manage
potential problems
• access to a car to return the patient to hospital;
• access to a telephone
• a home-to-hospital driving time of less than
20minutes;
• no medical contraindications
Postoperative care
• Monitoring for haemorrhage most important aspect of
post-tonsillectomy care
Clinical observation
• Excessive swallowing
• Pallor
• Increases in pulse rate
• Monitoring blood volumes coughing or vomiting up
blood ,assess the bleeding point.
• Record blood losses in theatre, in recovery and ward
• Total expected patient blood volumes
100mL/kg
• All cases of reactionary haemorrhage in children
theatre in order to obtain reliable control.
• In adults greater blood volume short period
of conservative treatment attempted prior to
surgical reintervention.
POSTOPERATIVE PAIN/ANALGESIA
REQUIREMENTS
• Little informationpracticeindividualized
• paracetamol (20 mg/kg) and diclofenac (1
mg/kg), except in asthmatics, two hours
preoperatively as well as the uniform
postoperative prescription of up to 100 mg/kg
of paracetamol and 3 mg/kg of diclofenac in
24 hours with DF118 as rescue analgesia
POSTOPERATIVE PAIN/ANALGESIA
REQUIREMENTS
• NSAIDs, for example ketoprofen combined with full dosages
of paracetamol and codeine as rescue analgesia was
sufficient
• Median time for cessation of pain 11 (3–24) days
• Median duration of analgesia taken of 12 (5–25) days.
• Median time for cessation of pain on drinking (1–18) &
on eating solids 11 (1–20) days.
• First normal night of sleep at 7(0–18) days
• Normal daily activities 12 (2–24) days
ANTIEMETIC THERAPY POST-
TONSILLECTOMY
• Prophylactic single-dose antiemetic therapy
using ondansetron or other selective 5HT type
3 receptor antagonists
DIET POST-TONSILLECTOMY
• No evidence rate of recovery or
complication rates
ADJUNCTIVE THERAPY: LOCAL
ANAESTHESIA, ANTIBIOTICS
AND STEROIDS
• Perioperative injection LA pain reduction, diminished
perioperative bleeding and facilitation of dissection
New metaanalysis
• Postoperative oral antibiotics pain(no role) but earlier
return to normal activity1 day
• single intraoperative dose of dexamethasone -↓emesis
first 24 hours & ↑ soft or solid diet on postoperative day 1
• Intravenous hydration for 24 hours postsurgery reduced
postoperative pain
Complication
Reactionary haemorrhage
• Bleeding peroperatively and within the first 24
hoursmost feared complication
↓
• Risk of airway obstruction
• Shock
• Death if inappropriately treated or untreated.
SECONDARY HAEMORRHAGE
• More common than is widely appreciated
• 9 percent of cases  1.4 percent were severe
requiring a return to theatre.
• ↑ with age, peaking between 30 and 34 years
• Serious haemorrhage ↑ in older age
• Most (70 percent) present between days 4 and 7
POSTOPERATIVE FEVER
• No association between colony count, core
cultures, blood cultures and fever
• suggesting that fever is not caused by
infection not require antibiotics
Tonsillectomy outcomes
• Short term deficits in cellular and humoral
immunity up to six months in children
following adeno-tonsillectomy
Bibliography
• Scott-Brown's Otorhinolaryngology and Head
and Neck Surgery
• Rob & Smith’s Operative Surgery
• Dhingra’s Diseases Of Ear, Nose And Throat &
Head And Neck Surger
Next presentation
• Case presentation by Dr. Bimal Pokharel on
Friday
Thank you
• General anaesthesia In adults, cuffed endotracheal tubes are preferable
• Appropriate exposure Boyle Davis mouth gag.
In all techniques apart from guillotine tonsillectomy
• Tonsil is grasped and retracted forcefully towards the
• midline indentification intended plane of dissection,
↓
Soft areolar tissue between the capsule of the tonsil & the constrictor muscle of the
pharynx.
• The surgical plane is then entered minimal loss of or trauma to the mucosal
tissue of the anterior pillar of the fauces and uvula.
Instruments directed at the tonsil rather than laterally into the tonsillar fossa

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Tonsillectomy.pptx

  • 1. Tonsillectomy Dr.Satish Kumar Ray 1st year Resident,ENT-HNS Moderater: Dr.Bikash Gurung Pokhara Academy of Health Sciences
  • 2. Overview • Anatomy • History • Indication • Tonsillectomy techniques • Steps of tonsillectomy • Post-operative care • Complication
  • 3. Tonsil • Palatine • Lingual tonsils • Adenoids • Tubal • Diffuse aggregates of pharyngeal submucosal lymphoid tissue ↓ Waldeyer’s ring ↓ A complete circle of lymphoid tissue surrounding the entrance to the gastrointestinal and respiratory tracts
  • 4. PALATINE TONSIL • Paired aggregates of lymphoid tissue • Located pocket between palatoglossus and palatopharyngeus musclesoverlying folds of mucosa ↓ Anterior and Posterior tonsillar pillars • Common structure with lymphoid tissue elsewhere ↓ • Gastrointestinal and respiratory tractsadenoids ,Peyer’s patches ,appendix
  • 5. • The stratified squamous non keratinizing mucosal covering of the tonsils irregular convoluted invaginations parenchyma pits or crypts. • 12–15 crypts medial surface of tonsil. • One of the cryptsvery large and deep ↓ • crypta magna or intratonsillar cleft. • Microorganisms, desquamated epithelium and food debris are frequently present within the crypts
  • 6. Relation of palatine tonsil • Medial surfacecrypts • Lateral surfacefibrous capsuleBetween the capsule and the bed of tonsil loose areolar tissue • Upper poleextends into soft palate medial surface is covered by a semilunar foldpotential space called supratonsillar fossa. • Lower poleattached to the tongue separated • from the tongue by a sulcus called tonsillolingual sulcus
  • 7. Bed of tonsil Tonsil is related laterally to its capsule (1), loose areolar tissue containing paratonsillar vein (2), superior constrictor muscle (3), styloglossus (4), glossopharyngeal nerve (5), facial artery (6), medial pterygoid muscle (7), angle of mandible (8) and submandibular salivary gland (9), pharyngobasilar fascia (10), buccopharyngeal fascia (11
  • 8. Blood supply The tonsil is supplied by five arteries 1. Tonsillar branch of facial artery. This is the main artery. 2. Ascending pharyngeal artery from external carotid. 3. Ascending palatine, a branch of facial artery. 4. Dorsal linguae branches of lingual artery. 5. Descending palatine branch of maxillary artery.
  • 9. VENOUS DRAINAGE • Drain into paratonsillar vein common facial vein and pharyngeal venous plexus LYMPHATIC DRAINAGE • Drain into upper deep cervical nodes particularly the jugulodigastric (tonsillar) node situated below the angle of mandible. NERVE SUPPLY • Lesser palatine branches of sphenopalatine ganglion (CN V) and glossopharyngeal nerve provide sensory nerve supply
  • 10. Normal flora • Extremely variable in health & disease • Surface of the tonsil in disease is GABHS • Other surface organisms include Haemophilus, Staphylococcus aureus,alpha haemolytic streptococci, Branhamella sp., Mycoplasma,Chlamydia, various anaerobes and a variety of respiratory viruses.
  • 11. Function • Lymphoid germinal centres submucosallycontain both B and T lymphocytes. • Responsible for the final differentiation, induced by exposure to antigen B cells IgG and IgA plasma cells • Allow positive selection of B cells • Generate B cells which express polymeric IgA migrate to the upper respiratory tract mucosa ↓ associated ‘front line’ mucosal surfaces
  • 12. HISTORY OF TONSILLECTOMY Celsus in ‘De Medicina’ (14–37 AD) • ‘induration’of the tonsils dissection with the fingernail. • If not possible grasped with a hook and pulled out with ‘bistoury’. Morrel McKenzie • Improved instrumentation – snares and ‘guillotines’ • popularization of the operation Sir Felix Semon (1849–1921) Removed the tonsils several of Queen Victoria’s grandchildren fashionable in the drawing rooms of the aristocracy.
  • 13.
  • 14. The SIGN guidelines for tonsillectomy • Based on Paradise criteria • patients for tonsillectomy both adults and children should meet all the following criteria  sore throats are due to tonsillitis  the episodes of sore throat are disabling and prevent normal functioning  seven or more well-documented, clinically significant, adequately treated sore throats in the preceding year, or  five or more such episodes in each of the preceding 2 years, or  three or more such episodes in each of the preceding 3 years
  • 15. Indications for tonsillectomy • Recurrent acute tonsillitis • Peritonsillar abscess Further indications for tonsillectomy  In adults with gross tonsil hypertrophy and OSA, or as part of uvulopalatopharyngoplasty (UPPP) or laser-assisted uvulopalatoplasty  Severe haemorrhagic tonsillitis  Severe infectious mononucleosis with upper airway obstruction  Large symptomatic tonsoliths (tonsillar Concretions)  As long-term management of IgA nephropathy
  • 16. Tonsillectomy can be indicated for biopsy purposes in the following scenarios Asymmetrical adult tonsil with normal mucosa in the absence of cervical adenopathy Asymmetrical adult tonsil with mucosal abnormality and or cervical adenopathy As an oncological procedure for Ca tonsil For obstructive sleep apnoea (OSA) in children in conjunction with adenoidectomy
  • 18. Tonsillectomy techniques • Undergoing something of a revolution. • Dissection tonsillectomy (first described by Edwin Pynchon in 1890) with haemostasis performed with ties or diathermy standard • Recently explosion of different dissection instruments effort reduce postoperative pain and haemorrhage Current trials • Any these techniques is consistently clinically greatly superior to any other technique
  • 19. 1. Dissection techniques 2. Nondissection techniques Dissection techniques  cold dissection techniques sharp/bluntsnares and haemostasis with ties or diathermy mono or bipolar  diathermy or electrocautery dissection Monopolar Bipolar forceps tonsillectomy bipolar scissor tonsillectomy  Radiofrequency/electrosurgery tonsillectomy somnoplasty tonsillectomy: bipolar thermal radiofrequency ablation coblation (plasma-mediated ablation)tonsillectomy argon plasma coagulator tonsillectomy  harmonic scalpel (ultrasound) tonsillectomy  Laser dissection tonsillectomy: CO2 laser, potassium titanyl phosphate (KTP) and Nd-YAG laser tonsillectomy Nondissection techniques include:  guillotine tonsillectomy;  intracapsular partial tonsillectomy
  • 21. PRINCIPLES OF DISSECTION TONSILLECTOMY POSITION • Rose’s position, i.e. patient lies supine with head extended by placing a pillow under the shoulders • A rubber ring is placed under the head to stabilize it • Hyperextension should always be avoided
  • 22.
  • 23. The incision • Tonsil is grasped with Luc's or similar forceps • Drawn -medial direction exposing an area of mucosa medial to the free edge of the anterior faucial pillar. • Incision halfway between the upper and lower 'poles' • Scissors or other sharp instrument depth of the surgical 'capsule' of the tonsil. • Preserve as much as possible of the mucosa • Incision downwards to the base of the tongue and upwards to the upper pole.
  • 24. Beginning of blunt dissection • When capsule has been identified Howarth's nasal raspatory or similar blunt dissector separate tonsil and its capsule surrounding peritonsillar tissues
  • 25. Mobilization of upper pole • upper pole must first be mobilized keep the dissector as close as possible to the capsule throughout the dissection. • 'Digging' into the fossa bleeding and more postoperative scarring
  • 26. Continuing the dissection • Gripping upper pole draw the tonsil towards the midline extends the dissection by separating the peritonsillar tissues capsule, until the lower pole is approached.
  • 27. Mobilization of lower pole • Lower pole of the tonsil there is a firm fibrous triangular fold hold up the dissection at this point. • Triangular fold cut with scissors • Dissection carried on to the base of the tongue.
  • 28. Removal of tonsil • A cold-wire snare is threaded over the tonsil finally removed by closing the snare at the level of the tonsillolingual sulcus. • This ensures lingual 'tongue' of lymphoid tissue is removed with the tonsil proper ↓ Failure to do so may result in 'recurrence
  • 29. Control of haemorrhage • Most primary bleeding from tonsillectomy venous Minor bleeding controlled naturally by the contraction and retraction of the smaller vessels occur spontaneously if a gauze swab fossa for 2 or 3 minutes. • Main paratonsillar vein  'holed' or sectioned ligated with silk thread (right fossa). • Minor persistent bleeding from smaller vessels quickly and effectively with insulated diathermy forceps (left fossa)
  • 30. The various dissection techniques • Developed  minimize tissue trauma postoperative pain and bleeding • while remaining simple and of short duration. • All the techniques have their advocates and detractors
  • 31. Diathermy or electrocautery dissection • Refers to using a heated instrument to cut or coagulate tissues. • Heat generated 150-400˚c Pros • significant reduction in intraoperative blood loss and operating time Cons • Increase in haemorrhage, pain and slower healing The recent Cochrane review identified 22 studies comparing tonsillectomy by diathermy and dissection • Reduced intraoperative bleeding but increased pain in the diathermy group • Increased risk of secondary haemorrhage Method of choice in patients at high risk of bacteraemia.
  • 32. Radiofrequency tonsillectomy Somnoplasty tonsillectomy • Use radiofrequency waves at 460 kHz and have a bipolar electrode. • The electrode has a temperature sensor for adjustment of output power control of tissue temperature and total energy delivered • Target temperature held constant at 85˚c Pros significantly less pain (mucosa is not breached) Cons trials were too small to make meaningful comments on haemorrhage rates
  • 33.
  • 34. Coblation (plasma-mediated ablation)tonsillectomy • Using radiofrequency signals electrodisassociation effect to generate a plasma of excited ions or an ionized field. • The coblator handpiece electrode as well as an irrigation and suction channel fragment and suction tissue from the field • Heat generated  40 -70 ˚c Pros reduced postoperative pain, more rapid healing and quicker resumption of normal activities Cons 3.4 times greater haemorrhage rate than cold steel dissection bipolar diathermy which was 3.1 times >cold steel dissection.
  • 35. Argon plasma coagulator tonsillectomy • Requires an argon plasma coagulation (APC) dissector, an argon gas source & high frequency voltage generator. • APC dissector rigid tube with a ceramic tip through which argon flows to the tip electrode serves as one pole frequency voltage source Pros limited penetration & good coagulative properties  minimizing blood loss & postoperative pain. less postoperative haemorrhage >diathermy Cons more complications and longer operating time
  • 36. Harmonic scalpel (ultrasound) tonsillectomy • Two mechanisms to cut and coagulate tissue. 1. sharp blade vibrating at 55.5 kHz over a distance of 80 mm. 2. The rapid forward and backward motion of the cutting tip in contact with tissue fragmentation and separation of tissue planes Coagulation mechanical disruption hydrogen bonds and thus protein denaturation
  • 37. Harmonic scalpel (ultrasound) tonsillectomy • Temperature rise frictional changes(50–100˚c) • Pros improved visibility • less force and tissue tension for incisions >traditional • Cons intraoperative blood loss and postoperative haemorhage rates were similar
  • 38. Guillotine tonsillectomy • most suitable for protuberant tonsils in the paediatric population • The tonsil is pushed fully through the guillotine closed • All tonsil tissue is through the guillotine and no anterior pillar mucosa is caught in the guillotine. • If the tonsil cannot be completely fitted through the guillotine abandoned. • Once the guillotine is closed a minute to compress vessels in the lower pole before cutting off the tonsil
  • 39. Pros less pain and greater speed Cons  excessive trauma to pillars, postoperative bleeding from an inadequately removed lower pole and persistent infection in tonsil remnants
  • 41. Postoperative care • Introduction • Postoperative pain & analgesia • Antiemetic therapy post-tonsillectomy • Diet post-tonsillectomy • Adjunctive therapy: local anaesthesia, antibiotics and steroids
  • 42. Postoperative care • Tonsillectomy Discussionday case or overnight stay –ongoing Favours • Economic benefits • Minimal morbidity • Low reactionary haemorrhage rate after eight hours (0.49percent) • Reasonable ability to control pain and nausea
  • 43. The criteria for day case tonsillectomy • an available competent adult at home to manage potential problems • access to a car to return the patient to hospital; • access to a telephone • a home-to-hospital driving time of less than 20minutes; • no medical contraindications
  • 44. Postoperative care • Monitoring for haemorrhage most important aspect of post-tonsillectomy care Clinical observation • Excessive swallowing • Pallor • Increases in pulse rate • Monitoring blood volumes coughing or vomiting up blood ,assess the bleeding point. • Record blood losses in theatre, in recovery and ward
  • 45. • Total expected patient blood volumes 100mL/kg • All cases of reactionary haemorrhage in children theatre in order to obtain reliable control. • In adults greater blood volume short period of conservative treatment attempted prior to surgical reintervention.
  • 46. POSTOPERATIVE PAIN/ANALGESIA REQUIREMENTS • Little informationpracticeindividualized • paracetamol (20 mg/kg) and diclofenac (1 mg/kg), except in asthmatics, two hours preoperatively as well as the uniform postoperative prescription of up to 100 mg/kg of paracetamol and 3 mg/kg of diclofenac in 24 hours with DF118 as rescue analgesia
  • 47. POSTOPERATIVE PAIN/ANALGESIA REQUIREMENTS • NSAIDs, for example ketoprofen combined with full dosages of paracetamol and codeine as rescue analgesia was sufficient • Median time for cessation of pain 11 (3–24) days • Median duration of analgesia taken of 12 (5–25) days. • Median time for cessation of pain on drinking (1–18) & on eating solids 11 (1–20) days. • First normal night of sleep at 7(0–18) days • Normal daily activities 12 (2–24) days
  • 48. ANTIEMETIC THERAPY POST- TONSILLECTOMY • Prophylactic single-dose antiemetic therapy using ondansetron or other selective 5HT type 3 receptor antagonists DIET POST-TONSILLECTOMY • No evidence rate of recovery or complication rates
  • 49. ADJUNCTIVE THERAPY: LOCAL ANAESTHESIA, ANTIBIOTICS AND STEROIDS • Perioperative injection LA pain reduction, diminished perioperative bleeding and facilitation of dissection New metaanalysis • Postoperative oral antibiotics pain(no role) but earlier return to normal activity1 day • single intraoperative dose of dexamethasone -↓emesis first 24 hours & ↑ soft or solid diet on postoperative day 1 • Intravenous hydration for 24 hours postsurgery reduced postoperative pain
  • 51.
  • 52.
  • 53. Reactionary haemorrhage • Bleeding peroperatively and within the first 24 hoursmost feared complication ↓ • Risk of airway obstruction • Shock • Death if inappropriately treated or untreated.
  • 54. SECONDARY HAEMORRHAGE • More common than is widely appreciated • 9 percent of cases  1.4 percent were severe requiring a return to theatre. • ↑ with age, peaking between 30 and 34 years • Serious haemorrhage ↑ in older age • Most (70 percent) present between days 4 and 7
  • 55. POSTOPERATIVE FEVER • No association between colony count, core cultures, blood cultures and fever • suggesting that fever is not caused by infection not require antibiotics
  • 56. Tonsillectomy outcomes • Short term deficits in cellular and humoral immunity up to six months in children following adeno-tonsillectomy
  • 57. Bibliography • Scott-Brown's Otorhinolaryngology and Head and Neck Surgery • Rob & Smith’s Operative Surgery • Dhingra’s Diseases Of Ear, Nose And Throat & Head And Neck Surger
  • 58. Next presentation • Case presentation by Dr. Bimal Pokharel on Friday
  • 60. • General anaesthesia In adults, cuffed endotracheal tubes are preferable • Appropriate exposure Boyle Davis mouth gag. In all techniques apart from guillotine tonsillectomy • Tonsil is grasped and retracted forcefully towards the • midline indentification intended plane of dissection, ↓ Soft areolar tissue between the capsule of the tonsil & the constrictor muscle of the pharynx. • The surgical plane is then entered minimal loss of or trauma to the mucosal tissue of the anterior pillar of the fauces and uvula. Instruments directed at the tonsil rather than laterally into the tonsillar fossa

Editor's Notes

  1. It represents the ventral part of second pharyngeal pouch. From the main crypts arise the secondary crypts, within the substance of tonsil. Crypts may be filled with cheesy material consisting of epithelial cells, bacteria and food debris which can be expressed by pressure over the anterior pillar.
  2. extending between anterior and posterior pillars and enclosing a potential space
  3. 40 percent of asymptomatic individuals
  4. Advertisement for tonsillectomy instruments, 1920
  5. Consideration should also be given to whether the Frequency o fepisodes is ncreasing or decreasing
  6. Asymmetrical adult tonsil with normal mucosa in the absence of cervical adenopathy has an approximately 7 percent risk of malignancy,41 primarily B-cell lymphoma. This compares with 0.35 percent risk in all tonsils and no malignancy in tonsils where asymmetry was not noted. [***] Asymmetrical adult tonsil with mucosal abnormality and or cervical adenopathy has a very high risk of malignancy with asymmetry being the strongest
  7. Asymmetrical adult tonsil with normal mucosa in the absence of cervical adenopathy has an approximately 7 percent risk of malignancy,41 primarily B-cell lymphoma. This compares with 0.35 percent risk in all tonsils and no malignancy in tonsils where asymmetry was not noted. [***] Asymmetrical adult tonsil with mucosal abnormality and or cervical adenopathy has a very high risk of malignancy with asymmetry being the strongest
  8. Set of instruments for tonsillectomy. (1) Knife in kidney tray, (2) and (3) toothed and nontoothed Waugh’s forceps, (4) tonsil holding forceps, (5) tonsil dissector and anterior pillar retractor, (6) Luc’s forceps, (7) scissor, (8) curved artery forceps, (9) Negus artery forceps, (10) tonsillars nare, (11) Boyle–Davis mouth gag with three sizes of tongue blades, (12) Doyen’s mouth gag, (13) adenoid curette, (14) tonsil swabs, (15) nasopharyngeal pack, (16) towel clips
  9. There is nearly always a flat 'tongue' of lymphoid tissue which passes from the lower pole of the tonsil proper to the tonsillolingual sulcus, where this small extension joins the base of the tongue
  10. either from the paratonsillar vein of DenisBrowne, which is rarely visualized throughout its entire length, or from smaller tributaries
  11. Two trials have been reported comparing radiofrequency tonsillotomy with conventional techniques
  12. not through, the lateral portion of the capsule Subtotal supracapsular tonsillectomy, or to perform a standard dissection-type tonsillectomy Coblation is performed at a lower temperature than standard radiofrequency proceDures and may cause less damage to adjacent tissue Pros compare with electrocautery
  13. The other pole is connected to the patient as a neutral electrode Argon is ionized by the electrode tip and flows as a blue beam between the electrode and the tissues 1–2mm of the beam) less postoperative haemorrhage with argon plasma coagulator tonsillectomy than with monopolar electrocautery.
  14. The temperature rise caused by these frictional changes (50–1001C) is much lower than that of cutting and coagulation by electrocautery (150–4001C).
  15. improved visibility due to reduced blood loss, charring, dessication and smoke as well as no risk of distant burns as no stray energy is present
  16. laser : found significantly less perioperative haemorrhage, more postoperative pain, more postoperative mood depression and a higher rate of reactionary and secondary haemorrhage
  17. Successful day case surgery rates of up to 96 percent have been reported
  18. a child’s blood volume
  19. significant levels of postoperative pain in 70 percent of children Homer et al
  20. A similar audit for tonsillectomy Suficient for adult at home following tonsillectomy
  21. use of antiemetics might mask clinical signs of bleeding
  22. declined from approximately one in 3000 to one in 170,000 operations.
  23. but have not shown that this is of clinical importance
  24. fossa to avoid trauma to the glossopharyngeal nerves and the carotid arterie