Title: Management Principles of Pelvic Organ Prolapse and Stress Urinary Incontinenc
1PELVIC ORGAN PROLAPSE PELVIC FLOOR
DYSFUNCTIONSurgical Anatomy and Current
Management guidelines
- Dr Malleswar Rao Kasina, MD,DGO
- Consultant Obstetrician Gynaecologist
- Hyderabad
2Normal axis
Axis of the uterus and vagina anteverted and
anteflexed
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4Pelvic diaphragm
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8(Inferior view - Diagrammatic)
9Inferior view of the pelvic diaphragm
(Anatomical) Superficial Perineal muscles,
Perineal Body and Levat Ani
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11Elements comprising the Pelvis
- Bones
- Ilium, ischium and pubis fusion
- Ligaments
- Muscles
- Obturator internis muscle
- Arcus tendineus levator ani or white line
- Levator ani muscles
- Urethral and anal sphincter muscles
12- Endopelvic fascia
- Meshwork of collagen, elastin and smooth muscle
- Extends from the level of uterine artery to the
fusion of the vagina and levator ani - Attached to uterus is parametrium
cardinal-uterosacral ligament complex - Attached to vagina is paracolpium pubocervical
and rectovaginal fasciae
13Pelvic Floor Muscles and Endopelvic Fascia
14Arcus Tendineus Fascia pelvis Arcus Tendineus
Levator Ani with endopelvic fascia Lavator Ani
15Normal Vaginal Support Anatomy
- Bladder, upper two-third vagina and rectum lie in
a horizontal axis - Urethra, distal one-third vagina and anal canal
are vertical in orientation - Pelvic floor is horizontal and like a hammock
levator plate - Levator ani muscles and perineal body support the
vertical orientation urethra, distal 1/3rd of
vagina, anal canal.
16horizontal vaginal axis
- The vaginal lies in a nearly horizontal axis when
the woman is standing. Hence any intra-abdominal
downward force will appose the vagina on the
pelvic floor muscles preventing descent.
17The axes of pelvic support(Pelvic Fascia)
- Three support axes
- Upper vertical axis (cardinal-uterosacral
ligament complex) - Horizontal axis leads to lateral and paravaginal
supports - Two platforms pubocervical fascia and
rectovaginal septum - Lower vertical axis supports the lower third of
the vagina, urethra and anal canal
18Pelvic diaphragm (Schematic)
19Pelvic Diaphragm (Anatomic) - Horizontal Axis of
the upper 2/3rds of Vagina Rectum
20Prevention of Prolapse(Horizontal axis of
upper2/3rds of Vagina Rectum)
21Horizontal Axis of the upper 2/3rds of Vagina
Rectum above pelvic diaphragm
22CONTINENCE MECHANISM
23HAMMOCK THEORY OF EXTRINSIC CONTINENCE MECHANISM
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25DeLanceys three levels of vaginal support
- Apical suspension
- Upper paracolpium suspends apex to pelvic walls
and sacrum - Damage results in prolapse of vaginal apex
- Midvaginal lateral attachment
- Vaginal attachment to arcus tendineus fascia
pelvis and levator ani muscle fascia - Pubocervical and rectovaginal fasciae support
bladder and anterior rectum - Avulsion results in cystocele or rectocele
- Distal perineal fusion
- Fusion of vagina to perineal membrane, body and
levators - Damage results in deficient perineal body or
urethrocele
26- The pelvic structures are divided into 3
compartments - Anterior urethra /bladder
- Middle uterus/vault
- Posterior rectum/anus
27Level 1 (suspensory axis)
- Level I- Uterosacral and cardinal ligaments
- support the uterus and vaginal vault.
28- Round ligament
- (mackenrodts lig / transverse/lateral cevical
cervical ligament at the base of broad lig with
uterine A V
29Defects in level 1
- Uterovaginal UV prolapse
- Enterocele
- Vault prolapse
30Level 2 (attachment axis)
- Level II- Pelvic fascias and paracolpos
- Fascial septae connects mid vagina to the pelvic
sidewalls - Anteriorly on Supine (Above on standing position)
- Pubocervical
- Posteriorly on Supine (Below on standing
position) - Rectovaginal fascia
- which connects the vagina to the white line on
the lateral pelvic wall through arcus tendinous
fascia pelvis (ATFP)
31Horizontal axis of pubocervical fascia and
rectovaginal fascia (pelvic fascia) with
underlying Levator Ani
32Horizontal Vertical (Distal) portions of
pubocervical fascia
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34Defects in level 2
- Level II and III detail -
- In level III, the vagina is fused to the medial
surface of the levator ani muscles, urethra, and
perineal body. - In level II, the anterior surface of the vagina
at its attachment to the arcus tendineus fascia
pelvis forms the pubocervical fascia, while the
posterior surface forms the rectovaginal fascia.
35Schematic representation of the connective tissue
support of the upper 2/3rd of Vagina Uterus
(paracolpium Parametrium CL, USL)
36Oblique sagittal view of anatomy of the lateral
attachments of the vagina
37Level 3 (fusion axis )
- Level III-Fusion of the Pelvic Fascia of the
lower 1/3rd of Vaginal walls - Anteriorly (On Supine position) or
- Inferiorly (On Standing position)
- Urethra
- Urogenital diaphragm
- Pubis
- laterally (On both positions)
- Levator ani fascia (Fascia Tendineus Levator Ani
-FTLA) (Denoted by Asterisks in next slide) - Posteriorly (On both positions)
- Perineal body
38Levator Ani with superior inferior layers of
fascia (endopelvic pubocervical fascias) and
lateral fused ATFP
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40Current Theories Relating to Maintenance of
Continence
- Pathophysiology of SUI relating to urethral
hypermobility is based on DeLanceys theory of
urethral support Hammock theory(DeLancey,1994). - The fascial covering of levator ani consists of
two leaves endopelvic fascia (abdominal side)
and pubocervical fascia (vaginal side). - The two leaves fuse laterally to attach on to
ATFP, creating a hammock of support under the
urethra and bladder neck
41Hammock Theory (DeLancy)
Normal support
Tearing
Sagging
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47(PROCIDENTIA)
48Perineum
- Anterior pubic arch, posterior coccyx tip,
lateral ischiopubic rami, ischial tuberosities
and sacrotuberous ligaments frame the perineum
into a diamond shape - Divided into two angulated triangles
- Posterior anal triangle contains the anal canal
- Anterior urogenital triangle contains the vagina
and urethra
49External genital muscles and the Urogenital
diaphragm
50Pelvic Relaxation
- Cystocele
- Stress urinary incontinence
- Rectocele
- Enterocele
- Uterine and vaginal prolapse
- Result of weakness or defect in supporting
tissues - endopelvic fascia and neuromuscular
damage
51Boat in dock analogy
- Boat- pelvic organs
- Water- levator muscles
- Moorings- Endopelvic fascial ligaments
- Problem is with the water or moorings or both
- Result is sinking of the boat
- Really the boat itself is fine
52PROLAPSE
- Mutifactorial involving both neuromuscular and
endopelvic fascial damage - Relaxation of the tissues supporting the pelvic
organs may cause downward displacement of one or
more of these organs into the vagina, which may
result in their protrusion through the vaginal
introitus.
53Factors promoting prolapse
- Erect posture causes increased stress on muscles,
nerves and connective tissue - Acute and chronic trauma of vaginal delivery
- Aging
- Estrogen deprivation
- Intrinsic collagen abnormalities
- Chronic increase in intraabdominal pressure
- heavy lifting
- coughing
- constipation
54Clinical Evaluation
- Hormonal and neurologic evaluation
- Level of estrogenization
- Sensory and sacral reflex activity
- Quantitative site-specific assessment of pelvic
floor components - in lithotomy position, patient sitting
- at rest and with valsalva
- ability to contract levator and anal sphincter
muscles
55Patient position for evaluating pelvic floor
defects
56Physical Examination of Pelvic Floor Function
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58Baden Walker POP-Q System
59POP-Q System
60POP Q System
- Created in an effort to provide objectivity to
POP quantification - Nine specific points of measurement are obtained
in relation to the hymenalring - 6 vaginal points (Aa, Ba, C, D, Ap, and Bp)
measured during Valsalva manoeuvre. - Points above hymen negative
- Points below hymen positive.
- Genital hiatus (gh) represents the size of the
vaginal opening - Perineal body (pb) represents the distance
between the vagina and the anus. - Total vaginal length (tvl) is measured by
reducing the prolapse and measuring the depth of
vagina.
61Pelvic Organ Prolapse Quantification (POPQ)
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63Anterior compartment defects
- Urethral hypermobility
- Distal 4 cm of anterior vaginal wall
- Cotton swab test
- If describes an arc greater than 30 degrees from
horizontal with valsalva - Results in genuine stress incontinence
- Cystocele
64Cystocele
- Main support of urethra and bladder is the
pubo-vesical-cervical fascia - Essentially a hernia in the anterior vaginal wall
due to weakness or defect in this fascia - Midline weakness allows bladder to descend
causing central cystocele - Tearing of end pelvic fascial connections from
lateral sulci to arcus tendinii causes lateral or
displacement cystocele - Detachment of pubocervical fascia from
pericervical ring causes a transverse or apical
cystocele - Symptoms include pelvic pressure and bulge or
mass in the vagina
65Defects in Pubocervical fascia (Schematic)
66PARAVAGINAL DEFECTS (Anatomic)
67PARAVAGINAL REPAIR
68Repair of Cystocele (Anterior Colporrhaphy)
Lateral defect Repair
69Cystocele
- Classified as Grade I, II, or III
- Grade III is prolapse outside the introitus
- Surgical repair is treatment of choice
- Anterior Colporrhaphy
- Paravaginal repair
- Colpocleisis
- Vaginal pessary
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71Posterior compartment defects
- Rectocele
- Perineal deficiency
- Bulbocavernous and superficial transverse muscle
heads retracted - Perineal descent
- Sagging and funneling of the levator ani around
the perineum such that anus becomes most
dependent - Difficulty with defecation
72Rectocele
- Chiefly a hernia in the posterior vaginal wall
secondary to weakness or defect in the
rectovaginal septum or fascia of Denonvilliers - Symptoms include difficulty evacuating stool, a
vaginal mass, and fullness sensation - Rectovaginal exam confirms diagnosis
73Rectocele
- Damage generally due to excessive pushing in
childbirth or chronic constipation - Surgical treatment if symptomatic
- Posterior Colporrhaphy
- Laxatives and stool softeners
- Temporary relief
- Pessary not helpful
74Evaluation of a rectocele
75Apical defects
- Uterine prolapse
- Normal cervix located in upper third of vagina
- Degree of prolapse measured by position of cervix
at maximum intraabdominal pressure, without
traction - Complete uterovaginal prolapse is called
procidentia - Vault prolapse
- Enterocele
76Uterine prolapse
- Weakness of endopelvic fascia and detachment of
cardinal and uterosacral ligaments - Complains of severe pelvic or abdominal pressure,
bulge or mass, and low back pain - Surgical management includes hysterectomy and
vaginal cuff or apex suspension - Estrogen replacement important
77Complete Uterovaginal procidentia
78Enterocele
- A true hernia of the recto uterine or cul-de-sac
pouch (pouch of Douglas) into the rectovaginal
septum - Descent of bowel in a peritoneum-lined sac
between posterior vaginal apex and anterior
rectum - Pulsion enterocele is filled with bowel and
distended by abdominal pressure - Can occur anteriorly as well
- Generally after a surgical change in vaginal axis
- Symptoms of fullness and vaginal pressure or
palpable mass - Bowel peristalsis confirms diagnosis
79Enterocele
- Commonly found in association with other defects
- Surgical approach
- Vaginal
- Abdominal
- Laparoscopic
- Ligation of hernia sac and obliteration of the
pouch of Douglas
80Conservative treatments
- Obstetric care to protect pelvic floor
- Decreased pushing times
- Avoid forceps, major lacerations
- Permit passive descent
- General lifestyle changes
- Smoking cessation and cough cessation
- Routine use of Kegel pelvic floor exercises
- Regular physical activity
- Proper nutrition
- Weight loss
- Avoid constipation and repetitive heavy lifting
- Hormone replacement therapy
81Pelvic Organ Prolapse Conservative Surgical
Management(Classic Current)
82Complications
- Kinking of ureter
- UTI
- Ca vagina
83Mx of decubitus ulcer
- Smear for cytology
- Colposcopy and directed biopsy
- Reduction of prolapse
- Oestrogen cream - if postmenopausal
84Conservative management
- Mild degrees of prolapse
- Unfit for surgery or unwilling for surgery
- Childbearing not complete
- In pregnancy
- Awaiting for surgery
85- Pelvic floor muscle training
- Kegels exercises
- Life style measures
- Lose weight, avoid weight lifting
- Stop smoking
- Treat c/c cough constipation
- Vaginal Pessaries
86Vaginal Pessaries
- Indications
- Unfit / unwilling for surgery
- Awaiting for surgery
- Pregnancy
- Lactation
- For decubitus ulcer to heal
87- Support pessaries
- Smith Hodge pessary or
- Ring pessary
- Stage I II
- Space filling pessaries
- Gelhorn and Cube pessaries
- Advanced stages
- More support
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89Complications of Pessaries
- Vaginal discharge
- Vaginal irritation
- Erode vaginal ------ fistula
- Ca vagina
90Surgical Management(Classic reconstructive)
91Principles of reconstructive pelvic surgery
- Site-specific repair
- Rebuild weakened endopelvic fascia, repair
fascial tears, and reattach prolapsed tissues to
stronger sites - Goal is a vagina of normal depth, width and axis
- Denervation or muscle trauma cannot be corrected
surgically
92Anterior CompartmentPosterior
compartmentMiddle compartmentEnteroceleNulli
parous prolapse
93- Reconstructive
- Obliterative
- Le Forts Colpocleisis
94Anterior Compartment
- Anterior cystocele
- Midline defect
- Paravaginal defect / lateral cystocele
- Detachment from arcus tendinus fascia
95- Site Specific Repair of the local fascia
lateral, midline and Apical or Transverse defects
in the Pubocervical fascia.
96Anterior Colporrhaphy
- Plication of pubo-vesico-cervical fascia
- Inverted T shaped incision
- Horizontal bladder sulcus
- Vertical - to just below ext urethral meatus
- Cut vesicocervical ligament, push bladder up
- Bladder buttressing
- Site specific repair pubocervical fascia to
arcus tendineus
97Paravaginal repair
- Abdominal
- Vaginal
- Laparoscopic
- Approximating vagina and arcus tendinus fascia
pelvis
98Posterior Compartment
- Posterior colporrhaphy
- Site specific repair
- Perineorrhaphy
99Posterior Coplorrhaphy
- Plication of rectovaginal fascia
- Pair of allis forceps either side, at lower
labium minora - 3rd forceps on post vaginal wall midline, above
bulge - Horizontal incision dissect vaginal mucosa from
prerectal fascia - Vertical incision to apex
- Approximate prerectal fascia in midline
- Anterior plication of pubococcygeus also
- Perineorrhaphy
- Repair of perineal body
100Middle compartment
- Uterine prolapse
- Vault prolapse
- Enterocele
101Vaginal Hysterectomy
- (Ward Mayo repair)
- Uerovaginal prolapse childbearing complete
102Vaginal Hysterectomy
- 1st clamp Uterosacral Cardinal lig
- 2nd clamp Uterine vessels
- 3rd clamp round ligament, f.tube, ovarian lig
- Enterocoele correction
- Close peritoneum Purse string suture
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104Vaginal vault prolapse
- 1) Vaginal Approach
- Sacrospinous colpopexy
- - vaginal vault to sacrospinous
ligament - McCalls Culdoplasty
- -approximation of uterosacral lig
vaginal vault to uterosacral
ligament - Iliococcygeus Colpopexy - vaginal vault to
iliococcygeus - Uterosacral lig suspension - vaginal vault to
uterosacral lig
105- 2) Abdominal Approach
- Abdominal Sacrocolpopexy vaginal vault to
anterior sacral ligament - Abdominal uterosacral suspension
- vaginal vault to utero sacral ligaments.
- 3) Laparoscopic
- Laparoscopic Sacrocolpopexy vaginal vault to
anterior sacral lig
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107SACROSPINOUS LIGAMENT INTERNAL PUDENDAL
NEUROVASCULAR BUNDLE
108Course of Internal Pudendal Neurovascular Bundle
109PUDENDAL CANAL
110Sacrospinous Colpopexy
- In Procidentia Vault prolapse
- Vault of Vagina to sacrospinous ligament
111Abdominal Sacrocolpopexy
- Y shaped mesh
- Long arm anterior longitudinal ligament
- Short arms ant post vagina
- In Nullipara Sacro hysteropexy
- Uterocervical jn ant long. ligament
112Le Forts Colpocleisis
- Obliterative procedure
- In elderly women unfit for repair operation
- Remove vaginal epi suture ant
post walls - Laterally tunnels
- Disdav- vaginal intercourse not possible
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114Manchester / Fothergills operation
- In women completed family , but wish to retain
uterus - In lesser degrees of UV prolapse, with
supravaginal elongation of pelvis - Prior dilatation of cervix
115- Shirodkars extended (Modified Manchester repair)
- Cervical amputation avoided
- Uterosacral ligaments as slings in front of
cervix
116Enterocoele
- Vaginal
- McCalls Culdoplasty
- Open cul de sac dissect high excise
- Approximate uterosacral lig to vaginal vault
117Abdominal
- Vaginal vault ----- Uterosacral ligament
- Halban procedure
- AP sutures b/w post vagina peritoneum over
recto sigmoid - Moscowitz procedure
- Concentric(purse string) sutures uterosacrals
peritoneum..
118Nulliparous prolapse
- Abdominal Sacrohysteropexy uterocervical
junction to anterior longitudinal sacral ligament
- Purandares sling operation cervix to anterior
abdominal wall (fascia lata) - Shirodkars sling procedure cervix to anterior
longitudinal sacral ligament - Khannas posterior sling cervix to ASIS
1195 Virkuds composite sling operation
- ?Tape is anchored from the post aspect of isthmus
to sacral promontory on the Rt. side ant. abd.
Wall on the Lt. Side - ?Utrosacral ligament is plicated
- ?Technically easy
-
120Associated Stress Incontinence
- Vaginal Tension Free Vaginal tape
- (TVT, TOT)
- Polypropylene mesh kept under midurethra
- Abdominal Burchs colposuspension
- At level of bladder neck ---- ileopectineal lig
/ coopers ligament
121Clinical Evaluation of SUI
122Current Surgical Management (Minimally Invasive)
123INTEGRAL THEORY OF EXTRINSIC CONTINENCE MECHANISM
124- Integral Theory Surgical Techniques
- Surgical Repair of Connective Tissue Structures
-
- Reconstructive pelvic floor surgery according to
the Integral Theory differs from conventional
surgery in four ways - It is minimally invasive (day-care).
- It is based on specific surgical principles which
minimize risk, pain and discomfort to the
patient. - It takes an holistic approach to pelvic floor
dysfunction by isolating the contribution(s) of
each zone of the vagina to dysfunction. - It has a symptom-based emphasis (the Pictorial
Diagnostic Algorithm) which expands the surgical
indicators to include cases with major symptoms
and only minimal prolapse.
125Pictorial Diagnostic Algorithm
126Lower Urinary Tract Symptoms caused by Pelvic
Organ Prolapse
127Bowel Symptoms caused by Pelvic Organ Prolapse
128Birth-related laxity The diagram shows the
babys head severely stretching ligaments and
other tissues in and outside the vagina. This may
cause various degrees of looseness, prolapse of
the bladder and bowel, and urine and bowel
incontinence. Fundamental in any surgical
treatment is the approximation of laterally
displaced tissues, and the strengthening of
damaged suspensory ligament(s)
129PELVIC LIGAMENTS
130The 5 main structures which require repair with a
tape are outlined in yellow Anterior zone 1
external urethral ligament (EUL) 2
pubourethral ligament (PUL) 3 suburethral
vagina (hammock) Middle zone 4 arcus
tendineus fascia pelvis (ATFP) 5 pubocervical
fascia (PCF) 6 anterior cervical ring/cardinal
ligament (CL) ZCE excess tightness, usually
scar tissue below bladder neck (tethered
vagina) Posterior zone7 uterosacral ligament
(USL) 8 rectovaginal fascia (RVF)9 perineal
body (PB).
131Clinical Assessment Sheet
(Suburethral Vagina)
Cardinal Ligament gtgtgtgtgtV
UteroSacralLigamentgtgtgtgtgt
132In keeping with the overall framework of the
Integral Theory, the surgical techniques are
organized by zone. The zones consist of nine key
structures which potentially need repair in
pelvic reconstructive surgery (fig 1-10).
- Fig. 1-10 The key connective tissue structures of
the pelvic floor. Perspective view from above
and behind, level of pelvic brim. PCM
pubococcygeus muscle force LP levator plate
muscle force LMA longitudinal muscle of the
anus force ZCE Zone of Critical Elasticity
133Organ prolapse and symptoms are related, and both
are mainly caused by laxity in the four main
suspensory ligaments and perineal body.
Restoration of ligament/fascial length and
tension is required to restore anatomy and
function.
- The babys head (circles) may damage the
ligaments and vaginal tissues to varying degrees
as it descends through the vagina to cause stress
incontinence1, cystocele 2, uterine/apical
prolapse 3, and rectocoele 4. PUL
pubourethral ligament ATFP arcus tendineus
fascia pelvis USL uterosacral ligament. Not
shown are cardinal ligament (Middle Zone) and
Perineal Body (Posterior zone)
134THE DYNAMIC ANATOMY OF NORMAL FUNCTIONThe
muscles support the organs, vagina, bladder, and
bowel from below, and also, open and close them
by three external directional muscle forces (red
arrows)
135Using a special delivery system, polypropylene
tapes are inserted as an anterior sling at
midurethra, a posterior sling in the position of
the USLs, and other positions according to which
structure in which zone has been damaged
Cystocoele Repair Tapes are inserted in positions
4 to repair lateral and central defects, and
6 to repair transverse defect (high
cystocoele/anterior cervical ring).
- TFS Site specific repair of cystocoele (cardinal
ligaments, lateral and central defects)Uterine/ap
ical prolapse Repair of the cardinal ligaments
(6) and uterosacral ligaments (7) is
sufficient for even 4th degree prolapse.
136TFS site specific repair for uterine prolapse
Reinforcement of cardinal ligaments 6 and
uterosacral ligaments7.Rectocoele repairThe
whole posterior vaginal wall is supported by
repairing the uterosacral ligaments ('7) and
perineal body ('9) Repair of large rectocoele
Reinforcement of perineal body (PB) rectovaginal
fascia and uterosacral ligaments (USL)
137The 5 main structures which require reinforcement
with polypropylene tapes are pubourethral (PUL),
cardinal, arcus tendineus fascia pelvis (ATFP),
uterosacral (USL) ligaments and perineal body
(PB)
138TFS site specific repair of the 5 sites causing
prolapse and abnormal pelvic floor symptoms. 3D
view from above and behind.Polypropylene tapes
T may be used to reinforce the five main
structures which support the pelvic organs
pubourethral (PUL), cardinal, arcus tendineus
fascia pelvis (ATFP), uterosacral (USL)
ligaments, cardinal ligament(CL) and perineal
body (PB)..
139The mini or micro sling is sinserted
exclusively form the vagina. It avoids most
complications of tension-free slings.
- The Tissue Fixation System(TFS) minisling is a
new approach to surgery for prolapse. It works by
approximating laterally displaced tissues, and by
reinforcing the 4 suspensory ligaments of the
vagina, PUL, ATFP, CL, USL, and also, the PB.
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