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1.
Q J Nucl Med Mol Imaging ; 63(3): 278-283, 2019 Sep.
Article in English | MEDLINE | ID: mdl-27387380

ABSTRACT

BACKGROUND: The aim of the present study was to evaluate how neoadjuvant androgen deprivation therapy (ADT) can impact 18F-choline uptake in primary prostate cancer (PC) and its metastases before radical prostatectomy (RP) or radiation therapy (RT). METHODS: We retrospectively reviewed images of 79 PC patients undergoing 18F-choline PET/CT before RP or RT. Based on concomitant administration of neoadjuvant ADT at the time of 18F-choline PET/CT, patients were subdivided into naïve group (Group 1) and neoadjuvant ADT group (Group 2). PET/CT results, SUVmax and metabolic tumor volume (MTV) for each site were re-assessed by two nuclear medicine physicians with more than 5 years of experience. A chi-square and a U-Mann Whitney test were used to compare the two groups. RESULTS: Sixty-two patients were included in Group 1, while 17 in Group 2. PET/CT was positive in all patients, in particular: 54 had a significant uptake in prostate alone, 12 in prostate plus lymph nodes (LN), 4 in prostate plus LN and bone, 3 in prostate plus bone and 6 in prostate plus other organs (such as lung or thyroid). PET/CT was more frequently positive in a different site, outside the prostate, in Group 1 as compared to Group 2 (P<0.001). Conversely, median SUVmax and MTV in the prostate resulted significantly lower in Group 2 than in Group 1 (5.34 vs. 7.72 and 3.66 vs. 6.86 cm3, respectively; both P<0.05). CONCLUSIONS: PET/CT could have an important role in prostate cancer staging before primary treatment; however, before imaging, hormonal therapy status should be carefully evaluated.


Subject(s)
Androgen Antagonists/pharmacology , Choline/analogs & derivatives , Neoadjuvant Therapy , Prostatic Neoplasms/drug therapy , Prostatic Neoplasms/metabolism , Aged , Androgen Antagonists/therapeutic use , Biological Transport/drug effects , Choline/metabolism , Humans , Male , Neoplasm Metastasis , Positron Emission Tomography Computed Tomography , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/pathology , Retrospective Studies
2.
World J Urol ; 35(10): 1507-1515, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28229210

ABSTRACT

INTRODUCTION: Kidney transplantation (KT) is the preferred treatment for patients with end-stage renal disease (ESRD). To reduce the morbidity of the open surgery, a robotic-assisted approach has been recently introduced. Our aim is to evaluate surgical and functional results on 17 cases of robotic-assisted kidney transplantation (RAKT) performed at the same institution. MATERIALS AND METHODS: From July 2015 to June 2016, we performed 17 cases of RAKT from living donors in pre-emptive patients, who underwent laparoscopic nephrectomy. A prospective pilot study was made at Fundació Puigvert (Barcelona), evaluating functional and surgical outcomes. In this series, we considered the functional results, surgical outcomes and complications rates. RESULTS: Seventeen patients successfully underwent RAKT, in particular surgical console time was 181 min (150-200) with vascular suture time 42 min (32-48), and estimated blood loss <70 ml. Overall ischemia time was 98.9 min (84-140). No patient was converted to open transplantation. No major surgical intra-operative complications were observed. The mean post-operative serum creatinine level 160 µmol/L (81-479). We reported a case of delayed graft function (DGF), one case of graft arterial thrombosis and one case of intraperitoneal hematoma. No anastomosis revision and wounds infections occurred. CONCLUSION: RAKT with regional hypothermia appears to be a safe surgical procedure in a properly selected group of patients. The potential advantages of RAKT are related to the quality of the vascular anastomosis, the possible lower complication rate and the shorter recovery of the recipients.


Subject(s)
Postoperative Complications , Adult , Female , Humans , Kidney Failure, Chronic/surgery , Kidney Transplantation , Male , Middle Aged , Patient Selection , Pilot Projects , Postoperative Complications/diagnosis , Postoperative Complications/etiology , Prospective Studies , Recovery of Function , Robotic Surgical Procedures , Spain , Treatment Outcome
3.
Arch Ital Urol Androl ; 88(1): 7-12, 2016 Mar 31.
Article in English | MEDLINE | ID: mdl-27072169

ABSTRACT

AIM: In the last thirty years, the treatment for renal and ureteral calculi has undergone profound variations. The objective of this study has been to evaluate the existence of parameters which can affect the spontaneous expulsion of a symptomatic ureteral stone in a reasonably brief period of time and to identify whether certain parameters such as sex, age, the location and dimension of the stone, the presence of dilation in the urinary tract together with the administered therapy, can be used for a correct clinical management of the patient. METHODS: In a period of 9 months, 486 cases of renal colic were registered at emergency department. RESULTS: The cases of renal colic due to ureteral calculus were 188 (38.7%). The patients' charts, complete of all data and therefore, valid for this research, resulted to be 120 (64%). In the presence of a symptomatic ureteral stone, the correct approach must first of all, focalize on the dimension of the calculus itself; less importance instead, is given to the location, as reported in other studies, the presence of hydroureteronephrosis, sex and the side. CONCLUSION: In the cases when the pain symptoms cannot be solved by means of the administration of analgesics, it is then reasonable to take into consideration an immediate endourological treatment. If the pain symptoms are promptly solved, an attentive wait of 4 weeks should be considered reasonable in order to allow spontaneous expulsion of the calculus.


Subject(s)
Pain/etiology , Renal Colic/therapy , Ureteral Calculi/therapy , Adult , Aged , Aged, 80 and over , Analgesics/administration & dosage , Female , Humans , Male , Middle Aged , Pain/drug therapy , Renal Colic/physiopathology , Time Factors , Ureteral Calculi/physiopathology , Young Adult
4.
BJU Int ; 116(2): 202-6, 2015 Aug.
Article in English | MEDLINE | ID: mdl-24750975

ABSTRACT

OBJECTIVE: To evaluate the prevalence of adverse pathological features and the percentage of multifocal and/or bilateral disease in a series of patients who underwent radical prostatectomy (RP) for unique, microfocal prostate cancer (miPCa) detected on prostate biopsy in the pre-active surveillance (AS) era. PATIENTS AND METHODS: In this retrospective, multi-institutional study, we analysed the clinical records of 131 consecutive patients who underwent either retropubic or robot-assisted RP for miPCa at two referral centres from January 2000 to December 2011. miPCa was defined as a neoplastic lesion present in ≤10% of core with biopsy Gleason score not applicable or biopsy Gleason score 6. RESULTS: There were 17 (13%) pT3-4 prostate cancers and a single case (0.8%) of pN+ tumour. Moreover, 31 (24.1%) patients had a Gleason score of >6 in the RP specimen. Therefore, unfavourable pathological features (pT3-4/N+ and/or Gleason score >6) were present in 40 (30.5%) patients. The median (interquartile range) prostate-specific antigen (PSA) density was 0.11 (0.09-0.17) and 0.16 (0.11-0.24) ng/mL/mL in patients with favourable and unfavourable pathological characteristics, respectively (P = 0.003). The receiver operating characteristic curve had an area under the curve value of 0.67 (95% confidence interval 0.56-0.77) for PSA density to predict the risk of unfavourable pathological features. CONCLUSION: Patients with miPCa who are candidates for an AS protocol should be adequately informed that in ≈30% of cases the cancer might be locally advanced and/or with a Gleason score of >6. Those unfavourable pathological characteristics could be predicted by the PSA density value. Further studies should investigate the role of a more extensive biopsy sampling to reduce the risk of under-staging and/or under-grading in patients with an initial diagnosis of miPCa.


Subject(s)
Prostate/pathology , Prostatic Neoplasms/epidemiology , Prostatic Neoplasms/pathology , Aged , Biopsy , Humans , Male , Middle Aged , Prostate/surgery , Prostatectomy , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/surgery , ROC Curve , Retrospective Studies
5.
Int Braz J Urol ; 41(3): 466-72, 2015.
Article in English | MEDLINE | ID: mdl-26200539

ABSTRACT

OBJECTIVES: To compare the effects of CO(2) insufflation on hemodynamics and oxygen levels and on acid-base level during Robot-Assisted Radical Prostatectomy (RARP) with transperitoneal (TP) versus extra-peritoneal (EP) accesses. MATERIALS AND METHODS: Sixty-two patients were randomly assigned to TP (32) and EP (30) to RARP. Pre-operation data were collected for all patients. Hemodynamic, respiratory and blood acid-base parameters were measured at the moment of induction of anesthesia (T0), after starting CO(2) insufflation (T1), and at 60 (T2) and 120 minutes (T3) after insufflation. In all cases, the abdominal pressure was set at 15 mmHg. Complications were reported according to the Clavien-Dindo classification. Student's two-t-test, with a significance level set at p<0.05, was used to compare categorical values between groups. The Mann-Whitney U-test was used to compare the median values of two nonparametric continuous variables. RESULTS: The demographic characteristics of the patients in both groups were statistically comparable. Analysis of intra-operative anesthesiologic parameters showed that partial CO(2) pressure during EP was significantly higher than during TP, with a consequent decrease in arterial pH. Other parameters analysed were similar in the two groups. Postoperative complications were comparable between groups. The most important limitations of this study were the small size of the patient groups and the impossibility of maintaining standard abdominal pressure throughout the operational phases, despite attempts to regulate it. CONCLUSIONS: This prospective randomized study demonstrates that, from the anesthesiologic viewpoint, during RARP the TP approach is preferable to EP, because of lower CO(2) reabsorption and risk of acidosis.


Subject(s)
Anesthesia, Inhalation/methods , Carbon Dioxide/metabolism , Hemodynamics/drug effects , Prostatectomy/methods , Prostatic Neoplasms/surgery , Robotic Surgical Procedures/methods , Aged , Animals , Humans , Male , Middle Aged , Neoplasm Grading , Operative Time , Peritoneum/surgery , Prospective Studies , Prostatic Neoplasms/pathology , Reproducibility of Results , Risk Factors , Statistics, Nonparametric , Time Factors , Treatment Outcome
6.
Arch Ital Urol Androl ; 87(2): 105-20, 2015 Jul 07.
Article in English | MEDLINE | ID: mdl-26150027

ABSTRACT

OBJECTIVE: Diet interventions may reduce the risk of urinary stone formation and its recurrence, but there is no conclusive consensus in the literature regarding the effectiveness of dietary interventions and recommendations about specific diets for patients with urinary calculi. The aim of this study was to review the studies reporting the effects of different dietary interventions for the modification of urinary risk factors in patients with urinary stone disease. MATERIALS AND METHODS: A systematic search of the Pubmed database literature up to July 1, 2014 for studies on dietary treatment of urinary risk factors for urinary stone formation was conducted according to a methodology developed a priori. Studies were screened by titles and abstracts for eligibility. Data were extracted using a standardized form and the quality of evidence was assessed. RESULTS: Evidence from the selected studies were used to form evidence-based guideline statements. In the absence of sufficient evidence, additional statements were developed as expert opinions. CONCLUSIONS: General measures: Each patient with nephrolithiasis should undertake appropriate evaluation according to the knowledge of the calculus composition. Regardless of the underlying cause of the stone disease, a mainstay of conservative management is the forced increase in fluid intake to achieve a daily urine output of 2 liters. HYPERCALCIURIA: Dietary calcium restriction is not recommended for stone formers with nephrolithiasis. Diets with a calcium content ≥ 1 g/day (and low protein-low sodium) could be protective against the risk of stone formation in hypercalciuric stone forming adults. Moderate dietary salt restriction is useful in limiting urinary calcium excretion and thus may be helpful for primary and secondary prevention of nephrolithiasis. A low-normal protein intake decrease calciuria and could be useful in stone prevention and preservation of bone mass. Omega-3 fatty acids and bran of different origin decreases calciuria, but their impact on the urinary stone risk profile is uncertain. Sports beverage do not affect the urinary stone risk profile. HYPEROXALURIA: A diet low in oxalate and/or a calcium intake normal to high (800-1200 mg/day for adults) reduce the urinary excretion of oxalate, conversely a diet rich in oxalates and/or a diet low in calcium increase urinary oxalate. A restriction in protein intake may reduce the urinary excretion of oxalate although a vegetarian diet may lead to an increase in urinary oxalate. Adding bran to a diet low in oxalate cancels its effect of reducing urinary oxalate. Conversely, the addition of supplements of fruit and vegetables to a mixed diet does not involve an increased excretion of oxalate in the urine. The intake of pyridoxine reduces the excretion of oxalate. HYPERURICOSURIA: In patients with renal calcium stones the decrease of the urinary excretion of uric acid after restriction of dietary protein and purine is suggested although not clearly demonstrated. HYPOCITRATURIA: The administration of alkaline-citrates salts is recommended for the medical treatment of renal stone-formers with hypocitraturia, although compliance to this treatment is limited by gastrointestinal side effects and costs. Increased intake of fruit and vegetables (excluding those with high oxalate content) increases citrate excretion and involves a significant protection against the risk of stone formation. Citrus (lemons, oranges, grapefruit, and lime) and non citrus fruits (melon) are natural sources of dietary citrate, and several studies have shown the potential of these fruits and/or their juices in raising urine citrate levels. CHILDREN: There are enought basis to advice an adequate fluid intake also in children. Moderate dietary salt restriction and implementation of potassium intake are useful in limiting urinary calcium excretion whereas dietary calcium restriction is not recommended for children with nephrolithiasis. It seems reasonable to advice a balanced consumption of fruit and vegetables and a low consumption of chocolate and cola according to general nutritional guidelines, although no studies have assessed in pediatric stone formers the effect of fruit and vegetables supplementation on urinary citrate and the effects of chocolate and cola restriction on urinary oxalate in pediatric stone formers. Despite the low level of scientific evidence, a low-protein (< 20 g/day) low-salt (< 2 g/day) diet with high hydration (> 3 liters/day) is strongly advised in children with cystinuria. ELDERLY: In older patients dietary counseling for renal stone prevention has to consider some particular aspects of aging. A restriction of sodium intake in association with a higher intake of potassium, magnesium and citrate is advisable in order to reduce urinary risk factors for stone formation but also to prevent the loss of bone mass and the incidence of hypertension, although more hemodynamic sensitivity to sodium intake and decreased renal function of the elderly have to be considered. A diet rich in calcium (1200 mg/day) is useful to maintain skeletal wellness and to prevent kidney stones although an higher supplementation could involve an increase of risk for both the formation of kidney stones and cardiovascular diseases. A lower content of animal protein in association to an higher intake of plant products decrease the acid load and the excretion of uric acid has no particular contraindications in the elderly patients, although overall nutritional status has to be preserved.


Subject(s)
Calcium, Dietary/administration & dosage , Dietary Proteins/administration & dosage , Drinking Water/administration & dosage , Kidney Calculi/diet therapy , Kidney Calculi/prevention & control , Sodium, Dietary/administration & dosage , Adult , Aged , Calcium Oxalate/metabolism , Calcium Oxalate/urine , Child , Citric Acid/metabolism , Dietary Supplements , Evidence-Based Medicine , Humans , Kidney Calculi/etiology , Kidney Calculi/metabolism , Kidney Calculi/urine , Nephrology , Patient Education as Topic , Risk Factors , Societies, Medical , Treatment Outcome
7.
J Urol ; 191(4): 977-82, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24262497

ABSTRACT

PURPOSE: We determined predictors of pelvic lymph node metastases in patients with penile cancer. MATERIALS AND METHODS: We retrieved a total of 188 node positive inguinal groins from 142 patients treated for penile cancer. Logistic regression models were fitted to test for predictors of pelvic lymph node metastases. The minimum p value method was used to determine the most significant cutoff values of each predictor. RESULTS: Pelvic lymph node metastases were observed in 45 cases (31.7%). The 5-year cancer specific survival rate was 71.0% vs 33.2% in patients with inguinal vs pelvic lymph node metastases. The most significant cutoff values were 3 inguinal lymph node metastases and a metastasis diameter of 30 mm. According to univariable logistic regression models the number of inguinal metastases (OR 1.92, p <0.001), the diameter of the metastases (OR 1.03, p = 0.001) and extranodal extension (OR 8.01, p <0.001) were significant predictors of pelvic lymph node metastases. These variables were also independent predictors of metastases in multivariable logistic regression models (p ≤ 0.012). Patients with 3 or more inguinal lymph node metastases and those with a metastasis diameter of 30 mm or greater were at 4.77 and 2.53-fold higher risk, respectively, of harboring pelvic lymph node metastases (p ≤ 0.006). The proportion of metastases increased significantly from 0% in cases with no risk factors to 57.1% when all 3 risk factors were observed (p <0.001). CONCLUSIONS: The number and diameter of inguinal lymph node metastases as well as extranodal extension are significantly associated with pelvic lymph node metastases. These variables should be considered to determine the need for pelvic lymph node dissection. Patients with no risk factors may be spared this dissection.


Subject(s)
Carcinoma, Squamous Cell/secondary , Penile Neoplasms/pathology , Aged , Algorithms , Humans , Inguinal Canal , Lymphatic Metastasis , Male , Middle Aged , Pelvis , Retrospective Studies
8.
Urol Int ; 93(4): 394-8, 2014.
Article in English | MEDLINE | ID: mdl-24969358

ABSTRACT

OBJECTIVE: To report our experience with the endourological treatment of renal matrix stones, an infrequent form of urinary calculi whose diagnosis and treatment are often difficult. METHODS: From 1990 to 2010 we treated 9 female patients with matrix calculi using the endourological approach; 4 presented with renal colics, 3 with symptomatic urinary tract infection and 2 with asymptomatic bacteriuria. Six patients underwent percutaneous lithotripsy and 3 retrograde intrarenal surgery as first-line therapy. Three cases needed a multidisciplinary approach. RESULTS: The six percutaneous procedures were successful after a single session, while the retrograde approach required multiple treatments; a single case needed a shock wave session to complete the fragmentation, in another one a percutaneous lithotripsy was necessary after the first procedure, and a third case needed multidisciplinary treatment. CONCLUSIONS: Percutaneous lithotripsy has been confirmed as the first option for matrix stones. The retrograde approach - by confirming the suspected diagnosis and being minimally invasive - may be employed to treat either lower-size stones or stones at high risk of recurrence.


Subject(s)
Kidney Calculi/surgery , Lithotripsy/methods , Nephrostomy, Percutaneous/methods , Adult , Aged , Child, Preschool , Female , Humans , Kidney Calculi/chemistry , Kidney Calculi/diagnosis , Lithotripsy, Laser , Middle Aged , Tomography, X-Ray Computed , Treatment Outcome
9.
Arch Ital Urol Androl ; 86(4): 291-2, 2014 Dec 30.
Article in English | MEDLINE | ID: mdl-25641454

ABSTRACT

A 50 year old white man received an incidental ultrasound diagnosis of hypoechoic mass interesting the right seminal vesicle. A CT scan showed the presence of a 7.8 cm roundish cyst, originating from the right seminal vesicle. He had been followed by the removal of the right seminal vesicle and both the cystic lesion. The histological findings of the specimen documented the presence of small round cells compatible with Ewing's sarcoma/PPNET. The patient received also adjuvant chemotherapy and radiation treatment. After 10 years, the follow-up is still negative.


Subject(s)
Genital Neoplasms, Male/therapy , Neuroectodermal Tumors, Primitive, Peripheral/therapy , Seminal Vesicles , Combined Modality Therapy , Female , Humans , Male
10.
Urol Int ; 90(1): 101-5, 2013.
Article in English | MEDLINE | ID: mdl-23108485

ABSTRACT

INTRODUCTION: Spermatic cord tumors represent 4% of scrotal tumors. The most common neoplasms are lipomas. Spermatic cord sarcomas (SCS) of the genitourinary tract account for 2% of all urological tumors. Herein we presented our experience in the treatment of these tumors and a review of the literature. PATIENTS AND METHODS: A review of the literature was performed using the Medline database with no restriction on language and date of published papers. The literature search used the following terms: epidemiology, surgery, chemotherapy, radiotherapy and spermatic cord sarcomas. Four cases treated from December 2009 to May 2010 are described. RESULTS: All patients were treated with radical orchiectomy. The final pathological report showed different types of sarcomas. Two of the patients were treated with adjuvant chemotherapy. 12 months after surgery, 2/4 patients were alive without signs of relapse. CONCLUSION: SCS are very rare tumors with a poor prognosis. SCS's prognostic factors have been identified in grading, size, depth of invasion and surgical margin status. Age and performance status of the patient are however very important. Lymphatic and hematogenous dissemination is uncommon. Surgery is the most important treatment both in the first approach and in local relapse. The role of adjuvant chemotherapy and radiation therapy is still debated.


Subject(s)
Genital Neoplasms, Male/therapy , Orchiectomy , Sarcoma/therapy , Spermatic Cord/surgery , Adolescent , Aged, 80 and over , Biomarkers, Tumor/analysis , Biopsy , Chemotherapy, Adjuvant , Fatal Outcome , Genital Neoplasms, Male/chemistry , Genital Neoplasms, Male/pathology , Humans , Immunohistochemistry , Lung Neoplasms/secondary , Male , Middle Aged , Neoplasm Recurrence, Local , Radiotherapy, Adjuvant , Sarcoma/chemistry , Sarcoma/secondary , Spermatic Cord/chemistry , Spermatic Cord/pathology , Time Factors , Treatment Outcome
11.
Arch Ital Urol Androl ; 85(4): 210-3, 2013 Dec 31.
Article in English | MEDLINE | ID: mdl-24399124

ABSTRACT

Wunderlich's syndrome is a clinical condition defined as a spontaneous renal bleeding of non traumatic origin, contained within the Gerota's fascia. Wunderlich's syndrome is rare. Spontaneous bleeding of kidney tumors, either benign or malignant, represents the more common causes. Classically it presents with acute flank pain, tender palpable mass and clinical hemodynamic deterioration. These symptoms are defined as the Lenk's classic triad. We present three cases of spontaneous renal bleeding.


Subject(s)
Hemorrhage/etiology , Hemorrhage/therapy , Kidney Diseases/complications , Kidney Diseases/therapy , Acute Disease , Aged , Female , Humans , Male , Middle Aged , Syndrome
15.
Front Surg ; 7: 566408, 2020.
Article in English | MEDLINE | ID: mdl-33282904

ABSTRACT

Introduction: Spermatic cord sarcomas represent a rare genitourinary malignancy with a challenging diagnostic and therapeutic pathway. Different histotypes have been described and prognostic factors remain poorly defined due to the paucity of data presented in literature. Methods: Retrospective chart review of 22 adult patients treated for spermatic cord sarcoma in a single institution in the last 20 years was performed. Clinicopathological characteristics of the tumors were collected with primary and subsequent treatment. Survival analysis was performed in order to identify prognostic factors of disease-specific survival. Results: The median age at diagnosis was 68 years (58-78), the most common histotype was liposarcoma (14/22), and most patients (63.6%) were found to have positive surgical margins after surgery. The 5-year cancer specific survival was 91.3%. Grading (p = 0.480), histotype (p = 0.327), and type of intervention (p = 0.732) were not associated with survival. All patients dead of disease had positive surgical margins (p = 0.172). Conclusion: We report a good prognosis at 5 years. Wide radical resection remains the first and probably the most important step; thus, according also to literature, negative surgical margins should be aimed.

16.
J Endourol Case Rep ; 4(1): 198-200, 2018.
Article in English | MEDLINE | ID: mdl-30671541

ABSTRACT

Background: Retrocaval ureter is a rare entity with a reported incidence of ∼1 in 1100 and a 2.8-fold male predominance. The course of the ureter could be classified, using an intravenous urography, as type 1 having S-shaped, fish-hook, or J-shaped retrocaval course or type 2 having sickle-shaped course. No case report describing retrograde endoscopic management of ureteral calculi in the presence of retrocaval ureter could be found in existing literature. We are presenting a case of type I retrocaval ureter with ureteral calculi and nonobstructive drainage, which was effectively managed by flexible ureteroscopy. Case Presentation: A 62-year-old Caucasian man presented with complaints of a renal colic. The patient was positive for a history of noninsulin-dependent diabetes and hypertension. A direct abdomen CT scan showed an 8 mm ureteral stone with suspected retrocaval course of right proximal ureter with no hydronephrosis. After informed consent, ureteroscopy was performed on the patient's right proximal ureter. No complications occurred intraoperatively and postoperatively. On follow-up of up to 3 months, patient was asymptomatic and direct abdomen CT scan showed normal kidney without hydronephrosis. Conclusion: In the presence of retrocaval ureter and associated ureteral calculi with a condition of nonobstructive drainage, retrograde ureteroscopy is a safe and optimal procedure.

17.
Nucl Med Commun ; 39(3): 260-267, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29381584

ABSTRACT

PURPOSE: The aim of this study was to assess the ability of fluorine-18-fluorocholine (F-FCH) PET/computed tomography (CT) to detect oligometastatic disease (OMD) in patients with early recurrence of prostate cancer (PC) [prostate-specific antigen (PSA)≤5 ng/ml]. PATIENTS AND METHODS: Between 2010 and 2016, 324 patients with PC and PSA levels of less than or equal to 5 ng/ml were recruited. The mean (SD) age of the patients was 71 (10) years. All patients were treated with a radical prostatectomy±lymphadenectomy. One-hundred and twenty-one patients were under hormonal therapy at the time of PET/CT, whereas 203 were not. The mean (SD) PSA at the time of PET/CT was 1.33 (1.19) ng/ml, the mean (SD) PSA doubling time (PSAdt) was 10 (12) months, and the mean (SD) PSA velocity (PSAvel) was 1.94 (3.31) ng/ml/year. The correlation between continuous and categorical data was assessed using Student's t-test or by analysis of variance and by the χ-test, respectively. Univariate and multivariate analysis was carried out for the identification of clinical variables able to predict the presence of OMD. RESULTS: One-hundred and ninety-three patients had a negative F-FCH PET/CT, whereas 131 (40.4%) had a positive scan. Of these latter patients, 35 had a significant F-FCH uptake in the prostatic fossae, 59 in the lymph nodes, and 37 in bone. PSA levels were significantly different between patients with a positive than those with a negative scan (P<0.001). F-FCH PET/CT was negative in the majority of patients with a PSA of less than or equal to 1 (63.2%) ng/ml. More than 60% of patients with a PSAdt of less than or equal to 6 months had a positive F-FCH PET/CT scan for OMD. PSAvel was higher in patients with a positive scan than those with a negative finding. At univariate analysis, PSA level, PSAdt, and PSAvel were predictors of a positive F-FCH PET/CT for OMD, whereas on multivariate analysis, only PSA level and PSAdt were independent predictors (both P<0.01). Furthermore, PSAdt was the only independent predictor of OMD at the lymph node level. CONCLUSION: In patients with early recurrence of PC, F-FCH PET/CT is able to detect OMD in 40% of cases. This finding has an important impact on the detection of PC recurrent lesions that could be treated by local therapy to achieve long-term survival or cure.


Subject(s)
Choline/analogs & derivatives , Positron Emission Tomography Computed Tomography , Prostate-Specific Antigen/blood , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/pathology , Aged , Androgens/metabolism , Humans , Male , Neoplasm Metastasis , Prostatic Neoplasms/blood , Prostatic Neoplasms/drug therapy , Recurrence
18.
Eur Urol Focus ; 4(6): 954-959, 2018 12.
Article in English | MEDLINE | ID: mdl-28753800

ABSTRACT

BACKGROUND: Despite the recent growing interest in the conservative management of upper tract urothelial carcinoma (UTUC), the diagnostic process is still a challenge for the risk of tumor undergrading. Real-time confocal laser endomicroscopy (CLE) provides in vivo microscopic images of tissues using a low-energy laser light source. OBJECTIVE: To describe our initial experience with CLE for the real-time characterization of UTUC. DESIGN, SETTING, AND PARTICIPANTS: Fourteen flexible ureteroscopies (f-URS) were performed at our center with CLE for UTUC. Lesions were preoperatively identified at computed tomography-intravenous urography. Cellvizio system was used during f-URS to perform CLE on the targeted lesions. Biopsies were then performed. INTERVENTION: f-URS with CLE. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Surgeon's CLE readings (low-grade/high-grade/carcinoma in situ [CIS]) were documented in the operation notes. A dedicated genitourinary pathologist-blinded to the surgeon reading-examined all specimens. A third person collected prospectively the CLE readings and the histopathological reports. Cohen's Kappa analysis was performed to test interobserver agreement. RESULTS AND LIMITATIONS: The mean diameter of tumors at computed tomography scan was 26mm (range, 5-50mm). In eight patients, CLE allowed to obtain images compatible with low-grade UTUC, in five patients with high-grade UTUC, and in one case with CIS. We found correspondence between the CLE images and the final histopathological results in seven out of seven cases of low-grade UTUC (100%), in five out of six cases of high-grade UTUC (83%), and in one out of one case of CIS (100%). Substantial agreement was found at interobserver agreement (k=0.64) between CLE and histological reading. No complications and/or limitations related to the use of CLE were recorded. CONCLUSIONS: CLE is a promising new technology in providing a reliable real-time histological characterization of UTUC lesions. Ideal targets might be UTUC patients potentially candidates for conservative management. PATIENT SUMMARY: We believe that a conservative treatment for low-grade upper tract urothelial carcinoma is an option that must be considered. The diagnostic process is still lacking of accurate tools. In this study, we find that confocal laser endomicroscopy, using the Cellvizio system, seems to help the clinician to have a real-time histological characterization of upper tract urothelial carcinoma lesions. This could better select patients for a conservative treatment.


Subject(s)
Carcinoma in Situ/pathology , Carcinoma, Transitional Cell/pathology , Intravital Microscopy , Kidney Neoplasms/pathology , Microscopy, Confocal , Ureteral Neoplasms/pathology , Ureteroscopy , Aged , Aged, 80 and over , Biopsy , Carcinoma in Situ/diagnostic imaging , Carcinoma in Situ/therapy , Carcinoma, Transitional Cell/diagnostic imaging , Carcinoma, Transitional Cell/therapy , Conservative Treatment , Female , Humans , Kidney Neoplasms/diagnostic imaging , Kidney Neoplasms/therapy , Male , Middle Aged , Neoplasm Grading , Patient Selection , Tomography, X-Ray Computed , Ureteral Neoplasms/diagnostic imaging , Ureteral Neoplasms/therapy
19.
Urologia ; 84(2): 65-70, 2017 Apr 28.
Article in English | MEDLINE | ID: mdl-28362041

ABSTRACT

Chyluria is the passage of chyle in the urine. The cause seems to be the rupture of retroperitoneal lymphatics into the pyelocaliceal system, giving urine a milky appearance. This communication is caused by the obstruction of lymphatic drainage proximal to intestinal lacteals, resulting in dilatation of distal lymphatics and the eventual rupture of lymphatic vessels into the urinary collecting system.This condition, if left untreated, leads to significant morbidity because of hematochyluria, recurrent renal colic, nutritional problems due to protein losses and immunosuppression resulting from lymphocyturia.In this review, we summarize the state of the art of this condition and the newest treatments available.


Subject(s)
Chyle , Lymphatic Diseases/complications , Humans , Kidney Pelvis , Lymphatic Diseases/diagnosis , Lymphatic Diseases/therapy , Retroperitoneal Space , Rupture, Spontaneous , Urine
20.
Urol Case Rep ; 8: 28-30, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27413693

ABSTRACT

Chyluria is the passage of chyle in the urine. The cause seems to be the rupture of retroperitoneal lymphatics into the pyelocaliceal system, giving urine a milky appearance. This condition if left untreated it leads to significant morbidity because of hematochyluria, recurrent renal colic, nutritional problems due to protein losses and immunosuppression resulting from lymphocyturia. We report our experience with the use of povidone iodine with dextrose solution as a sclerosing agent in the management of chyluria in two patients.

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