|
Treatment
of Staghorn Calculi by Extracorporeal Shock
|
ALGUMAS
REFERÊNCIAS BIBLIOGRÁFICAS
[Long-term
clinical outcome of extracorporeal shock wave lithotripsy monotherapy
for staghorn calculi]
Hinyokika
Kiyo 1998 Aug;44(8):541-6 (ISSN: 0018-1994)
Ashida S; Yamamoto A; Oka N; Masuda S; Yuasa K; Terao N [Find other articles
with these Authors]
Department of Urology, Kochi Takasu Hospital.
We treated 97 patients with staghorn calculi by ESWL monotherapy using
a Lithostar Lithotriptor (Siemens) between January 1989 and December 1996.
Seventeen patients (18 renal units) out of 45 patients (47 renal units)
who could be followed up for more than 12 months after ESWL had no stones
on radiographs at 3 months after the treatment. The actuarial non-recurrence
(or stone-free) rate was 88.9% at 1 year, 79.0% at 3 years, and 63.2%
at 5 years after ESWL (Kaplan-Meier method). The actuarial non-regrowth
rate (regrowth < 1 mm) was 96.6% at 1 year, 72.8% at 3 years, and 63.7%
at 5 years (Kaplan-Meier method). History of urinary stones was a significant
risk factor for stone recurrence, while patient sex, affected side, stone
number, pyuria (> or = 10/HPF), hydronephrosis on DIP, and staghorn
type were not significantly associated with stone recurrence or regrowth
(Cox proportional hazard model). Late complications associated with ESWL
included renal dysfunction (serum Cr > or = 1.1 mg/dl) in 2 patients,
hypertension (> or = 160 mmHg) in 3, and renal atrophy (two-dimensional
size < or = 80%) in 5. ESWL exerted adverse effects in a session-dependent
manner on the kidney resulting in renal atrophy. Therefore, we highly
recommend that ESWL should be limited to less than 10 sessions
Long-term
follow-up after primary extracorporeal shockwave lithotripsy monotherapy
of staghorn calculi: results after more than 6 years.
Traitement
des calculs coralliformes par lithotritie extra-corporelle par ondes de
choc chez l'enfant.]
Ann Urol (Paris) 1999;33(5):315-9 (ISSN: 0003-4401)
Garat JM [Find other articles with this Author]
Service d'Urologie Pediatrique, Fundacio Puigvert, Barcelona, Espagne.
To evaluate the efficacy of monotherapy with extracorporeal shock-wave
lithotripsy (ESWL) for staghorn calculi in children. Material and methods:
Between September 1987 and December 1998, 27 children (18 boys and 9 girls)
with a mean age of 5.2 years (9 months to 147 years) were managed in our
department for staghorn or pseudo-staghorn calculi. They were treated
with a Lithostar Siemens-Ultra lithotriptor ith ultrasound detection.
The "Puigvert method", which starts with low energy which is
then gradually increased, allows satisfactory painless fragmentation,
avoiding the need for general anaesthesia. RESULTS: the success rate was
70% with two sessions (37% with a single session). In one case, lithotripsy
was not indicated and percutaneous nephrolithotomy was necessary. Two
cystine stones ina girl (probably longstanding stones) could not be fragmented
and open surgery was required. The other five systine staghorn calculi
ere treated successfully. Ureteral catheterization was not required and
only one double J stent was placed preventively in a girl with a solitary
kidney. No major complication was detected. CONCLUSION: ESWL with the
Siemens-Ultra lithotriptor is a safe and effective first-line method for
the treatment of staghron calculi in children.
Staghorn calculi in children: treatment with monotherapy extracorporeal
shock wave lithotripsy.
J Urol 1999 Sep;162(3 Pt 2):1229-33 (ISSN: 0022-5347)
Orsola A; Diaz I; Caffaratti J; Izquierdo F; Alberola J; Garat JM [Find
other articles with these Authors]
Uropediatric and Radiology Units, Fundacio Puigvert, Barcelona, Spain.
PURPOSE: We evaluated the effectiveness of monotherapy extracorporeal
shock wave lithotripsy (ESWLT) for treating children with staghorn calculi.
MATERIALS AND METHODS: From February 1992 to December 1997, 11 boys and
4 girls 14 months to 13 years old (median age 4 years) presented to our
institution with staghorn calculi. In these patients ESWL was performed
using a Siemens Lithostar-ULTRA with ultrasound stone localization and
with intravenous sedation or without anesthesia. Using the Puigvert method
the frequency and energy of the shock waves delivered were increased progressively
to desensitize cutaneous nerve receptors, making the procedure less painful
and improving stone fragmentation. RESULTS: Overall stones resolved in
11 of the 15 patients (73.3%) after an average of 2 ESWL sessions. Of
the 11 patients 7 were stone-free after only 1 session, 2 with fragments
less than 5 mm. required no further intervention, and 2 required additional
surgery, including percutaneous nephrolithotomy to remove large residual
stone fragments in 1 and open renal surgery to remove a cystine staghorn
calculus in 1. Ureteral stents were not required in any patients. One
case of post-ESWL fever resolved promptly with antibiotics. CONCLUSIONS:
ESWL using the Siemens Lithostar-ULTRA is simple, effective and safe primary
treatment in children with staghorn calculi
Acta Urol Belg 1997 Oct;65(3):41-5 (ISSN: 0001-7183)
Mattelaer P; Wolff JM; Jung P; Feistkorn C; Jakse G [Find other articles
with these Authors]
Dept. of Urology, AZ St.-Jozef, Oostende, Belgium.
OBJECTIVE: We retrospectively investigated 58 patients suffering from
60 staghorn calculi, who were treated with primary extracorporeal shockwave
lithotripsy (ESWL) monotherapy, in order to determine long-term results
and the fate of the residual stones. MATERIAL AND METHODS: Mean follow-up
was 72.4 months. There were 49 partial staghorn calculi (C4) and 11 complete
C5 stones according to Rocco's classification. The mean number of ESWL
sessions needed for disintegration was 3.6. The mean amount of shockwaves
was 10,244. ESWL monotherapy alone was performed in 26 staghorn calculi
(43.3%). In treating the other 34 staghorn calculi 56 auxiliary procedures
were necessary. RESULTS: At discharge 28.3% of the patients were free
of stones. Fifty-five percent had small remnant particles (< 4 mm)
and 16.7% had rest-fragments (> 4 mm). After a mean follow-up period
of 72.4 months 36 patients were free of stones (60%). Twenty-four patients
still have residual stones. The fragments in 2 patients did not change
in size, in 14 patients fragments became bigger and 8 patients had a real
recurrence (13.3%). CONCLUSIONS: Primary ESWL monotherapy of staghorn
calculi is justified because of the comparable results with open surgery
and percutaneous nephrolithotomy (PCNL). Prognostic good factors are small
stone mass with most of the stone mass in the upper and middle calices,
the absence of dilatation and the absence of anatomical anomalies.
SANDWICH" THERAPY FOR THE TREATMENT
OF COMPLEX RENAL STONES
LEE E. PONSKY, STEVAN B. STREEM
Department of Urology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
ABSTRACT
Purpose: Shock wave lithotripsy (SWL) and percutaneous nephrolithotomy
(PCNL) are well accepted, minimally invasive modalities available for
the treatment of calculi. In this paper we review and discuss the technique
of combination "sandwich therapy" for the treatment of select
patients with large, extensively branched, or otherwise complex stones.
Materials and Methods: A review of the literature on combined percutaneous
nephrolithotomy and shock wave lithotripsy for the management of "staghorn"
calculi was performed and evaluated.
Results: Stone free rates after one month of follow up approach 70%, while
the remaining patients are left with residual dust or gravel. Complications
occur in less than 30% of patients, and no nephrectomies or mortality
have been reported with this approach. The probability of new stone formation
has been estimated to be 37% at five years, and renal function has been
shown to remain stable or improve in 96% of patients.
Conclusion: The use of combination therapy for the treatment staghorn
calculi is safe and effective and can limit much of the associated morbidity
of SWL or PCNL monotherapy. We recommend this combined "sandwich"
approach as the treatment of choice for select patients with large, extensively
branched, or otherwise complex staghorn calculi.
Key words: kidney, calculi, shock wave lithotripsy, percutaneous nephrostolithotomy
Braz J Urol, 26: 18-23, 2000
| Table
I - Results of ESWL for Staghorn Stones |
| Author/Year |
No.
of Patients |
Stone-free
(%) |
Re-treatment
(%) |
Average
No. of Treatments |
| Winfield
et al[14]/1988 |
48 |
60 |
50 |
1.6 |
| Pode
et al[15]/1988 |
41 |
57 |
88 |
2.9 |
| Constantinides
et al[16]/1989 |
61 |
62 |
48 |
1.4 |
| Michaels
& Fowler[17]/1989 |
23 |
57 |
40 |
1.7 |
| Vandeurson
& Baert[18]/1990 |
50 |
74 |
90 |
3.7 |
| Lam
et al[19]/1992 |
82 |
51 |
|
2.1 |
| Yamaguchi[20]/1994 |
30 |
70 |
87 |
3.7 |
The use of
ESWL for staghorn stones has had success rates ranging from 51% to 74%
in contemporary series, with re-treatment rates as high as 90% (Table
I).[14-20(A)
With regard to staghorn renal stones, PCNL success rates in contemporary
series are as high as 92% (Table III).[14,35-41](B)
(A)
1. Winfield
HN, Clayman RV, Chaussy CG, et al: Monotherapy of staghorn renal calculi:
A comparative study between percutaneous nephrolithotomy and extracorporeal
shock wave lithotripsy. J Urol 139:895-899, 1988.
2. Pode D, Verstandig A, Shapiro A, et al: Treatment of complete staghorn
calculi by extracorporeal shock wave lithotripsy monotherapy, with special
reference to internal stenting. J Urol 140:260-265, 1988.
3. Constantinides C, Recker F, Jaeger P, et al: Extracorporeal shock
wave lithotripsy as monotherapy of staghorn renal calculi: 3 years of
experience. J Urol 142:1415-1418, 1989.
4. Michaels EK, Fowler JE: ESWL monotherapy for large-volume renal calculi:
Efficacy and morbidity. Urology 34:96-99, 1989.
5. Vandeurson H, Baert L: ESWL monotherapy for staghorn stones with
second-generation lithotriptors. J Urol 143:252-256, 1990.
6. Lam HS, Lingeman JE, Barron M, et al: Staghorn calculi: Analysis
of treatment results between initial percutaneous nephrostolithotomy
and extracorporeal shock wave lithotripsy monotherapy with reference
to surface area. J Urol 147:1219-1225, 1992.
7. Yamaguchi A: ESWL monotherapy for staghorn calculi. Eur Urol 25:110-115,
1994.
8. Lingeman JE: Prospective randomized trial of ESWL and percutaneous
nephrostolithotomy for lower-pole nephrolithiasis. J Endourol 9(suppl):S64,
1995
(B)
1. Patterson
DE, Segura JW, LeRoy AJ: Long-term follow-up of patients treated by
percutaneous ultrasonic lithotripsy for struvite staghorn calculi. J
Endourol 3:177, 1987.
2. Kerlin RK, Kahn RK, Laberge JM, et al: Percutaneous removal of renal
staghorn calculi. Am J Roentgenol 145:797-801, 1985.
3. Segura JW, Patterson DE, LeRoy JA, et al: Percutaneous removal of
kidney stones: Review of 1000 cases. J Urol 134:1077-1081, 1985.
4. Snyder JA, Smith AD: Staghorn calculi: Percutaneous extraction versus
anatrophic nephrolithotomy. J Urol 136:351-354, 1986.
5. Gleeson M, Lerner SP, Griffith DP: Treatment of staghorn calculi
with ESWL and percutaneous nephrolithotomy. J Urol 38:145-151, 1991.
6. Chibber PJ: Percutaneous nephrolithotomy for large and staghorn calculi.
J Endourol 7:293-295, 1993.
7. Netto NR, Almeida-Claro JF, Ferreira U: Is percutaneous monotherapy
for staghorn calculus still indicated in the era of ESWL? J Endourol
8:195-197, 1994
Litotripsia
Extracorpórea por Ondas de Choque (LECO)
IndicaçõesAtualmente, todos os cálculos urinários
com indicação cirúrgica podem ser tratados com a
ajuda da Litotripsia Extracorpórea por Ondas de Choque, salvo aqueles
casos que se enquadram nas contra-indicações.Assim sendo,
todos os cálculos levando a obstrução ureteral e/ou
renal com dor forte persistente, têm indicação para
LECO.Cerca de 3% dos casos requerem algum procedimento urológico
associado, e menos de 2% são encaminhados para cirurgia.
Contra Indicações Menos de 5% dos pacientes são excluidos
da LECO por apresentarem contra-indicações.As principais
contra-indicações podem ser divididas em clínicas,
urológicas e técnicas. As contra-indicações
clínicas são as coagulopatias não corrigidas. A hipertensão
arterial não controlada, sendo necessário o controle rigoroso
dos níveis pressóricos antes do tratamento. Aneurisma de
aorta ou de artéria renal. Entretanto, a calcificação
das artérias renais ou da aorta não apresentam contra indicações
formais, desde que alguns trabalhos mostraram que ondas de choque não
afetam as calcificações arteriais. A gravidez é ainda
contra-indicada, por não se saber se as ondas de choque apresentam
algum efeito teratogênico e também pela exposição
aos Raios-X durante o tratamento. Aqueles pacientes portadores de marca-passo
cardíaco e arritmias devem ser cuidadosamente avaliados pelo cardiologista
antes de se submeterem à LECO, sendo importante a presença
Desse especialista durante o procedimento.As contra-indicações
urológicas são devidas a alterações anatômicas
ou funcionais que dificultam a saida dos fragmentos: como estenose distal
ao cálculo, cálculos em cálices crônicamente
distendidos, alteração funcional da mobilidade ureteral
e anomalias anatômicas graves.As contra-indicações
por dificuldades técnicas são variáveis dependendo
do tipo do litotritor. A obesidade pode ser uma contra-indicação,
por não se conseguir colocar o paciente no ponto focal das ondas
de choque. As anomalias esqueléticas, rins ectópicos, o
tamanho dos pacientes também podem apresentar as mesmas dificuldades
técnicas.O cálculo radiotransparente pode trazer alguma
dificuldade, principalmente se o equipamento não apresentar ultra-som
ou se o cálculo se encontra em nível de ureter médio,
onde se torna difícil a visualização também
pelo ultra-som.A posição do cálculo, principalmente
em nível de ureter médio, é uma contra-indicação
relativa, em vista da dificuldade de fragmentação devido
à atenuação das ondas de choque pelos ossos do quadril.
Quando aplicadas por via anterior, pode existir a interposição
de alças intestinais com ar em seu interior, alterando a onda e
reduzindo sua capacidade de fragmentação, além dos
riscos de lesão nessas alças.
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