JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 45

Abstracts
higher complication rate. Reasons for this include stone
size and composition, altered physiology and previous urinary tract reconstruction.
P4-10 Calyceal diverticula (CD): diagnosis
and management options in the era of noncontrast CT KUB
Abushamma F1, Ito H, Aboumarzouk O, Harding R,
Philip J, Timoney A, Keeley F
1North Bristol NHS Trust, United Kingdom

Introduction: Calyceal diverticula (CD) are traditionally
diagnosed by contrast studies such as IVU, CT urogram or
retrograde. IVU has largely been abandoned as an imaging
modality with the advent of non-contrast CT (NCCT).
Materials and Methods: We have retrospectively studied 48 patients diagnosed with CD since 2000 analysing
the timing and modality of CD diagnosis, type and number
of procedures, and success rate. Treatment failure was
defined as the requirement for further intervention.
Results: All patients underwent a non-contrast CT at the
time of presentation. Only 31% had a contrast study (IVU
or CT urogram) before intervention. 52% required 1- 2
procedures before a diagnosis was established. In 27% the
diagnosis was profoundly delayed, after an average of 5
interventions. The success rate for the first treatment is
69% if CD was diagnosed pre-operatively, compared to 0%
if diagnosed at the time of the procedure, typically retrograde pyelography at the time of flexible ureterorenoscopy (FURS) for failed ESWL. For instance, FURS success
as a first procedure with preoperative diagnosis is 50%
while 0% if CD was diagnosed intraoperatively.
Conclusions: We believe that the delay in diagnosis of
CD contributes significantly to the success rate and number of treatments. In the era of NCCT to diagnose kidney
stones, contrast studies are essential if CD is a potential
diagnosis, i.e. if NCCT raises suspicions or a stone is
refractory to ESWL.
P4-11 Local anaesthetic flexible
ureterorenoscopy: painful for all involved?
Kadhim H1, Pai A1, Wai H1, Chan K1, Mackie S1,
Watson G1
1Department of Urology, Eastbourne, United Kingdom

Introduction: Patients unfit for general anaesthesia
who present with renal tract pathology currently have
limited options. Conservative management and temporising measures, such as percutaneous nephrostomy, are
associated with significant morbidity. Ureterorenoscopy
(URS) is a central component of the management of
upper tract disease and is routinely performed under
general anaesthesia. We describe our institution's

45
experience of ureterorenoscopy using only local anaesthetic lubricating gel per urethra.
Patients and Methods: A single centre, retrospective
analysis of 59 consecutive patients was performed over a
3-year period. Surrogate markers of success were (1) tolerability (2) success of procedure without complications
(3) stone free rate after first procedure.
Results: 55% of patients were male. Mean age was 71
years and mean Charlson comorbidity Index was 6.3. 40%
of patients were anticoagulated. 64% of ureteroscopies
were for calculi, with a mean stone size of 6.5mm (range
1-20mm), with the majority ureteric (64%). All patients
were able to tolerate the procedure. Flexible ureterorenoscopy (fURS) was successful without complication
in 93% of patients. There were no complications above
Clavien Grade 2. The stone free rate was 78%.
Conclusions: Flexible ureterorenoscopy under local
anaesthetic provides a safe and effective method to investigate and treat renal tract pathology. This approach is a
useful addition to the armamentarium available to patients
deemed unsuitable for general anaesthesia.
P4-12 Risk factors for blood transfusion
following percutaneous nephrolithotomy in
the UK
Althaus A1, Withington J2, Finch W3, Smith D4, Turney
B5, Fowler S6, Armitage J1, Irving S3, Burgess N3,
Wiseman O1
1Addenbrooke's Hospital, Cambridge, United Kingdom, 2Royal Free
Hospital, London, United Kingdom, 3Norfolk and Norwich University
Hospital, United Kingdom, 4University College Hospital, London,
United Kingdom, 5Oxford University Hospitals, United Kingdom, 6The
British Association of Urological Surgeons, London, United Kingdom

Introduction: Percutaneous nephrolithotomy (PCNL) is
routinely utilized in the management of large renal stones
and staghorn calculi. PCNL is more efficacious when compared to other treatment modalities but carries an
increased risk of morbidity. Vascular injury and hemorrhage are known complications of PCNL with associated
risk of blood transfusion. We sought to describe procedural and patient risk factors for blood transfusion using a
national prospective data registry.
Patients and Methods: Data submitted to the BAUS
PCNL data registry between 2011 and 2017 were analyzed for rates of blood transfusion. We assessed risk factors for transfusion, including operator performing renal
puncture (urologist versus radiologist), patient position
(prone versus supine), size of renal access (6-24 French
versus 25-30 French), stone size (< 2 cm versus >2 cm),
stone complexity defined by Guy's stone score (I-II versus III-IV), patient comorbidities (spina bifida, kyphoscoliosis, and spinal cord injury), BMI, and preoperative
hemoglobin.



Table of Contents for the Digital Edition of JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018

Contents
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - BB1
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - BB2
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - Cover1
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - Cover2
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - Contents
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 2
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 3
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 4
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 5
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 6
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 7
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 8
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 9
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 10
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 11
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 12
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 13
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 14
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 15
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 16
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 17
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 18
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 19
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 20
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 21
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 22
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 23
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 24
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 25
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 26
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 27
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 28
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 29
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 30
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 31
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 32
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 33
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 34
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 35
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 36
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 37
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 38
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 39
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 40
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 41
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 42
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 43
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 44
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 45
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 46
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 47
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 48
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 49
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 50
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 51
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 52
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 53
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 54
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 55
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 56
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 57
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 58
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 59
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 60
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 61
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 62
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 63
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 64
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 65
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 66
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 67
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 68
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 69
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 70
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 71
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 72
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 73
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 74
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 75
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 76
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 77
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 78
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 79
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 80
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 81
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 82
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 83
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 84
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 85
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 86
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 87
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 88
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 89
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 90
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 91
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 92
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 93
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 94
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 95
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 96
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 97
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 98
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 99
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - 100
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - Cover3
JCU - Abstracts of the BAUS 2018 Scientific Meeting - June 2018 - Cover4
https://www.nxtbookmedia.com