Chromosomal microarray analysis in fetuses with an isolated congenital heart defect: A retrospective, nationwide, multicenter study in France

OBJECTIVES

Congenital heart defects (CHDs) may be isolated or associated with other malformations. The use of chromosome microarray (CMA) can increase the genetic diagnostic yield for CHDs by between 4% and 10%. The objective of this study was to evaluate the value of CMA after the prenatal diagnosis of an isolated CHD.

METHODS

In a retrospective, nationwide study performed in France, we collected data on all cases of isolated CHD that had been explored using CMAs in 2015.

RESULTS

A total of 239 fetuses were included and 33 copy number variations (CNVs) were reported; 19 were considered to be pathogenic, six were variants of unknown significance, and eight were benign variants. The anomaly detection rate was 10.4% overall but ranged from 0% to 16.7% as a function of the isolated CHD in question. The known CNVs were 22q11.21 deletions (n = 10), 22q11.21 duplications (n = 2), 8p23 deletions (n = 2), an Alagille syndrome (n = 1), and a Kleefstra syndrome (n = 1).

CONCLUSION

The additional diagnostic yield was clinically significant (3.1%), even when anomalies in the 22q11.21 region were not taken into account. Hence, patients with a suspected isolated CHD and a normal karyotype must be screened for chromosome anomalies other than 22q11.21 duplications and deletions.

1,000 Retroperitoneoscopic Procedures of the Upper Urinary Tract: Analysis of Complications

BACKGROUND AND OBJECTIVE

To evaluate risk factors and complications of retroperitoneoscopic procedures of upper urinary tract and adrenal gland.

METHODS

From 1994 to 2016, 1,000 retroperitoneal laparoscopies were performed - 476 nephrectomies, 201 adrenalectomies, 103 partial nephrectomies, 91 pyeloplasties, 70 nephro-ureterectomies, and 59 miscellaneous surgeries (diverticulectomy). Data collection was prospective. We analyzed age, body mass index (BMI), American Society of Anesthesiologists (ASA) score, operative time, blood loss, hospitalization stay and complications. Risks factors were explored with univariate and multivariate analysis.

RESULTS

The mean BMI was 25 and median ASA 2. The mean operative time was 136 mn, mean blood loss 149 mL. There were 49 conversions. Of the patients, 41 required re-interventions, predominantly due to urinary fistula or post-operative bleeding. Post-operatively, 145 complications were recorded. In multivariate analysis, partial nephrectomies (OR 2.12, p = 0.031, 95% CI [1.07-4.22]) and pyeloplasties (OR 1.97, p = 0.02, 95% CI [1.11-3.48]) were significantly more at risk of complication than nephrectomies. An ASA score of 3 was also a significant risk factor of complications (OR 2.3, p = 0.014, 95% CI [1.17-4.47]) and an increased BMI carried a higher risk of conversion. There was no significant difference of conversion or complication rates between the first and last 500 patients.

CONCLUSIONS

Upper urinary tract and adrenal surgeries can be performed by retroperitoneal laparoscopy. This surgical technic is safe and reproducible. The choice of the technic must be oriented by ASA, BMI and the type of surgery.

Outcomes in a cohort of patients with a Gleason score 6 on radical prostatectomy specimen

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Background: This retrospective study evaluates the outcome of a cohort of patients who had a radical prostatectomy with GS 6 on the prostatic specimen. Methods: Consecutive cases were extracted from prostatectomy database of 2 teaching hospitals between 2000 and 2006 for a prostate cancer and were scored GS 6 on the specimen. Overall, specific, metastasis and PSA progression-free survivals were analyzed. Cox model was used to evaluate predictive factors. PSA progression was defined by a level of 0.2 ng/mL or above. Results: Mean age of the 616 analyzed patients was 62.8 yrs (SD 6.4). Mean initial PSA was 8.2 ng/mL (SD 8.0). In 46 cases (7.5%) grade 4 was described on pre-operative prostatic biopsies. Median total tumor length (TTL) was 3 mm (IQ 7.7). Pelvic lymphadenectomy was performed in 213 cases and no positive lymph node was diagnosed. Positive margin (R1) was diagnosed in 79 patients (12.8%). pT3a and pT3b stages were described in 65 and 11 cases (10.5% and 1.8%) respectively. Mean follow-up (FU) was 57.2 months (SD 48). None of the 4 deaths were attributed to prostate cancer. PSA progression was observed in 73 patients (11.8%) of whom 48 had a secondary treatment. One patient developed metastasis. Independent predictive factors of PSA progression were TTL on prostatic biopsy (p = 0.007), R1 status (p = 0.005) and seminal vesicles invasion (p = 0.005). Center, initial PSA, number of positive cores and GS on prostatic biopsy were not associated with outcome. Conclusions: No specific mortality was observed in this cohort of prostatectomy GS 6 prostate cancer patients with the limitation of an insufficient FU. The number of positive cores on pre-operative prostatic biopsies was not predictive of outcome which calls into question its use as criterion for active surveillance.

Belatacept in renal transplant recipient with mild immunologic risk factor: A pilot prospective study (BELACOR)

The benefit of belatacept on antibody-mediated rejection (ABMR) incidence after kidney transplant with preformed donor-specific antibodies (DSAs) has never been assessed. Between 2014 and 2016, we conducted a multicenter prospective clinical trial with 49 patients to determine kidney allograft outcome in recipients with preformed DSAs (maximal mean fluorescence intensity 500 to 3000) treated with belatacept (BELACOR trial). Immunosuppressive strategy included antithymocyte globulin, belatacept, mycophenolate mofetil, and steroids. An ancillary control group was designed retrospectively, including patients fulfilling the same inclusion criteria treated with calcineurin inhibitors. In BELACOR group, no patient exhibited acute ABMR, patient and allograft survival at 1 year was 100% and 95.4%, respectively, and the estimated glomerular filtration rate was 53.2 mL/min/1.73 m² . However, the 12-month incidence of acute T cell-mediated rejection was 25.4% (14.5% to 42.4%). Comparison with the control group showed significantly higher T cell-mediated rejection incidence only in the BELACOR group (P = .003). Considering the DSAs, the outcome was similar in the 2 groups except a significantly higher number of patients displayed a complete disappearance of class II DSAs in the BELACOR group (P = .001). Belatacept was not associated with an acute ABMR increased risk and may be considered as immunosuppressive strategy in transplant recipients with preformed DSAs (maximal mean fluorescence intensity 500 to 3000). Prospective randomized trials are needed to confirm these results.

Early surgical management for giant omphalocele: Results and prognostic factors

OBJECTIVES

Giant omphalocele often represents a major surgical challenge and is reported with high mortality and morbidity rates. The aim of this study was to assess the outcome of neonates with giant omphalocele managed with early operative surgical treatment, and subsequently to identify possible factors that could alter the prognosis.

METHODS

We reviewed the medical records of 29 consecutive newborns with prenatally diagnosed giant omphalocele. In these cases one of two procedures had been performed: either staged closure after silo, or immediate closure with a synthetic patch. The cases were separated into 2 groups: Isolated giant omphalocele (IO group) and giant omphalocele associated with malformation (NIO group).

RESULTS

Infants in the IO group had a lower size of the omphalocele (p<0,001), a shorter hospital stay (95 days [45-915] vs. 41.5 days [10-110] p= 0, 02), and a shorter median ventilation length (10 days [1-33] vs. 27, 5 [6-65] p = 0, 05). In the NIO group, 5 cases displayed a significantly more difficult course than the others. They were compared to the remaining cases for prenatal and anatomic features. Four factors associated with greater morbidity were identified: CONCLUSIONS: Isolated omphalocele, even containing the whole liver, has a very good prognosis with early surgical treatment. Without associated anomalies, 95% of giant omphaloceles can be discharged with a median of 41.5 days in hospital. However, associated anomalies (especially cardiopathies) may burden the prognosis and should be both carefully assessed during pregnancy and taken into account in parental information.

TYPE OF STUDY

Retrospective Study LEVEL OF EVIDENCE: Level I.

[Is transition from pure laparoscopic to robotic-assisted radical prostatectomy associated with increase of surgical procedures for urinary incontinence and erectile dysfunction?]

OBJECTIVE

To study the impact of changing the technique of radical prostatectomy [pure laparoscopic radical (PR-Lap) to robot-assisted radical prostatectomy (RP-Rob)] on the rate of secondary procedures for urinary incontinence (UI) and erectile dysfunction (ED).

MATERIAL

Retrospective study evaluating the number and type of surgical procedures for post-RP UI and DE between 2008 and 2015, according to the technique of (RP-Lap or RP-Rob).

RESULTS

Between 2008 et 2015, 2046 RP were performed in our department including 372 RP-Lap and 1674 RP-Rob. Among these patients, 84 (4%) had a surgical procedure for post-RP UI (18 AMS800, 9 balloons Pro-Act, and 57 male slings) and 15 (0.7%) had implantation of penile prosthesis for post-RP ED; 16 (0.7%) patients had both procedures. The mean delay between RP and UI surgery decrease from 3.2 years in 2008 to 1 year in 2015 and remain stable for penile prosthesis implantation (mean delay: 3.4 years). The overall rates of secondary procedures for UI and DE remained stable and below 5% and 1.7%, respectively, even during the transition period. For each year of PR studied, the rates of secondary procedure were higher in the RP-Lap group.

CONCLUSION

Changing the technique of RP from RP-Lap to PR-Rob has a favorable impact on the rate of secondary procedures for UI and ED from the outset.

Laparoscopic Radical Prostatectomy in Patients with High-Risk Prostate Cancer: Feasibility and Safety. Results of a Multicentric Study

INTRODUCTION

In Western countries about 25% of prostate cancer (PCa) are high-risk tumors at presentation and its treatment is still a matter of debate among urologists. When a surgical approach is preferred the use of a mininvasive tecnique is still difficult due to the lack of data supporting it in literature. The aim of this study is to evaluate feasibility and safety of laparoscopic radical prostatectomy (LRP) for high-risk PCa.

MATERIALS AND METHODS

The study included 1114 patients with high-risk PCa submitted to LRP between 1998 and 2014. High-risk patients were defined according to D'Amico classification. We collected functional and oncological long-term outcomes and evaluated with univariate and multivariate analyses the role of predictive factors for survival and biochemical recurrence (BR).

RESULTS

Mean age at treatment was 62 ± 8 years; mean follow-up was 74 ± 50 months. We obtained an overall survival (OS) of 96.6% at a mean follow-up of 74 months (1076 patients) and a disease-free survival of 66.2% (737 patients). Age (p = 0.0006), pT (p < 0.0001), pN (p = 0.0018), and surgical margins (p = 0.0076) resulted as independent predictors for BR in multivariate analysis. pN (p = 0.0025) and Gs (p = 0.0003) are independent predictors for OS and cancer-specific survival in a univariate analysis; just the Gs results significant in the multivariate model.

CONCLUSIONS

According to our encouraging data about oncological and functional outcomes we believe that radical prostatectomy represents an effective treatment for patients with high-risk PCa and that laparoscopy is a safe approach offering a mini-invasive alternative to open surgery.

[Prostate cancer diagnostic by saturation randomized biopsy versus rigid targeted biopsy]

INTRODUCTION

Optimal diagram teaming up randomized biopsy (BR) to targeted biopsy (BC) is still missing for the diagnostic of prostate cancer (CP). This study compares diagram of 6, 12 or 18 BR with or without BC rigid.

METHODS

Between January 2014 and May 2016, 120 patients had prostate biopsy BR and BC. Each patient had 18 BR and BC. Results compared sextant (6 BR), standard (12 BR) and saturation (18 BR) protocol with or without the adding of BC for the detection of CP.

RESULTS

Rectal examination was normal, mean PSA at 8.99ng/mL and mean volume at 54cm³. It was first round for 48% of patients. Forty-four cancers were found by the group 18 BR+BC (control). The detection rate was respectively, for 6, 12 and 18 BR of 61%, 82% and 91%. The add of BC increased this detection of +27% for 6 BR+BC, +13% for 12 BR+BC and +9% for 18 BR+BC. BC found 70% of all CP. Nine percent of CP were missed by BR only. Significant CP (Gleason≥7) diagnostic was the same for 12 BR+BC and 18 BR+BC.

CONCLUSION

The add of BC to BR increase the detection of CP by 10%. Twelve BR+BC is the optimal diagram for the diagnostic of CP finding 95% of CP and 97% of significant CP.

LEVEL OF EVIDENCE

4.

Ductal adenocarcinoma of the prostate: Clinical and biological profiles

BACKGROUND

Ductal adenocarcinoma (DAC) is a rare and aggressive subtype of prostate cancer (PCa). In the present study, we analyzed the clinical and biological characteristics of DAC, in comparison with high grade conventional acinar PCa.

METHODS

Samples and data were retrospectively collected from seven institutions and centrally reviewed. Immunohistochemistry was performed on tissue microarrays to assess the expression of candidate proteins, based on the molecular classification of PCa, including ERG, PTEN, and SPINK1. SPOP mutations were investigated from tumor DNA by Sanger sequencing. Relationships with outcome were analyzed using log-rank analysis and multivariable Cox regression.

RESULTS

Among 56 reviewed prostatectomy specimens, 45 cases of DAC were finally confirmed. The pathological stage was pT3 in more than 66% of cases. ERG was expressed in 42% of DAC, SPINK1 in 9% (all ERG-negative), and two cases (ERG-negative) harbored a SPOP mutation. Compared to high grade conventional PCa matched for the pathological stage, cell proliferation was higher (P = 0.04) in DAC, and complete PTEN loss more frequent (P = 0.023). In multivariate analysis, SPINK1 overexpression (P = 0.017) and loss of PSA immunostaining (P = 0.02) were significantly associated with biochemical recurrence.

CONCLUSION

these results suggest that, despite biological differences that highlighted DAC aggressiveness, the molecular classification recently proposed in conventional PCa could also be applied in DAC.