Positive Surgical Margins Research Articles

Comparison of surgical margins and adjuvant therapy for head and neck cancer by hospital type.

Differences in patient populations and outcomes by hospital type are becoming increasingly relevant as health care systems shift to value-based care models. There is a paucity of literature on patient-level and hospital-level differences for patients with head and neck squamous cell carcinoma (HNSCC). The objective of this study was to examine differences in patient characteristics, surgical margins, and adjuvant therapy patterns for surgically treated HNSCC across different hospital types. A statewide retrospective cohort study was conducted to examine differences in surgically treated patients with HNSCC by hospital type. A total of 579 surgically treated HNSCC patients with a mean age of 58.5 [standard deviation (SD) 10.7] years were included. There were 152 patients (26%) treated at academic hospitals, 205 (35%) at community cancer centers, and 222 (38%) at community hospitals. Patients at academic hospitals were more likely to travel farther for surgery (mean distance 43.6 miles for academic centers vs. 12.7 miles for community cancer centers vs. 12.6 miles for community hospitals; P<0.001) and have advanced T stage (T3-T4) at diagnosis (38% academic, 26% community cancer center, 26% community hospital; P=0.003). There was no significant difference in the positive surgical margin rate by hospital type (32.0% for academic hospitals, 32.1% for community cancer centers, and 35.0% for community hospitals; P=0.79). However, patients at academic hospitals were more likely to receive adjuvant chemoradiation even after adjusting for tumor stage and site [odds ratio (OR) 2.4, 95% confidence interval (CI): 1.2-5.0]. There are important patient-level and hospital-level differences for head and neck cancer management in academic versus community hospitals.

PE035 Predictors of positive surgical margins after robotic assisted radical prostatectomy: A single surgeon’s series

PE035 Predictors of positive surgical margins after robotic assisted radical prostatectomy: A single surgeon’s series

Analysis of risk factors for persistent PSA after radical prostatectomy: results from a high-volume center in Southeast China

BackgroundFor localized prostate cancer, a comprehensive treatment approach centered around radical prostatectomy (RP) is often their optimal choice. Successful RP can typically reduce prostate-specific antigen (PSA) levels to below 0.1 ng/mL within 6 to 8 weeks postoperatively. However, in clinical practice, 5 to 24% of patients may have a PSA ≥ 0.1 ng/mL at 6 to 8 weeks after surgery, a phenomenon known as PSA persistence. Many studies based on data from Europe and United States have shown an association between PSA persistence and poor postoperative outcomes, further analyzing the risk factors for PSA persistence. However, relevant research based on data from China remains scarce.MethodsRetrospective study of 1,347 prostate cancer patients who underwent RP at the First Affiliated Hospital of Zhejiang University School of Medicine from July 15, 2016, to August 31, 2022. Based on inclusion criteria, univariate and multivariate logistic regression analyses were conducted to explore the independent risk factors for persistent PSA.ResultsAmong the 826 prostate cancer patients after RP, 124 patients experienced persistent PSA. In univariate logistic regression analysis, robot-assisted laparoscopic radical prostatectomy (RARP), preoperative PSA, high-risk group, preoperative International Society of Urological Pathology (ISUP) grades 2–5, postoperative ISUP grades 3–5, percentage of positive cores, cT3, ≥pT3b, extracapsular extension (EPE), seminal vesicle invasion (SVI), positive surgical margins (PSM) and Prostate Specific Antigen Density (PSAD) were all significantly associated with PSA persistence after RP (P < 0.05). In terms of surgical approach, RARP was considered a protective factor against postoperative PSA persistence (OR:0.53, p < 0.05). In multivariate logistic regression analysis, preoperative ISUP grade 4, percentage of positive cores and PSM were independent risk factors of PSA persistence after RP (P < 0.05).ConclusionPreoperative PSA, high-risk group, preoperative ISUP grades 2–5, postoperative ISUP grades 3–5, percentage of positive cores, cT3, ≥pT3b, EPE, SVI, PSM and PSAD were independent risk factors for PSA persistence in prostate cancer patients after RP. This provides assistance for early monitoring and treatment of patients at high risk of persistent PSA in clinical practice.

Single-Port Extraperitoneal vs. Multiport Transperitoneal Robot-Assisted Radical Prostatectomy: A Propensity Score-Matched Analysis.

(1) Background: Since the introduction of the purpose-built Single Port (SP) robotic platform, there has been an ongoing debate regarding its advantages compared to the established multi-port (MP) system. The goal of this present study is to compare the perioperative, oncological, and functional outcomes of SP Extraperitoneal robotic radical prostatectomy (RARP) versus that of MP Transperitoneal RARP approach at a high-volume tertiary center. (2) Methods: Based on a retrospective review of the prospectively maintained IRB-approved database, 925 patients successfully underwent RARP by a single experienced robotic surgeon. A 4:1 propensity-matched analysis based on the baseline prostate cancer International Society of Urological Pathology (ISUP) Grade Group, clinical stage, and preoperative Prostate Specific Antigen (PSA) was performed, which yielded a cohort of 606 patients-485 in the SP EP and 121 in the MP TP approaches. Of note, the SP EP approach also included the traditional Extraperitoneal (n = 259, 53.4%) and the novel Transvesical (TV) approaches (n = 226, 46.6%). (3) Results: The overall operative time was slightly longer in the SP cohort, with a mean of 198.9 min compared to 181.5 min for the MP group (p < 0.001). There were no intraoperative complications with the MP approach and only one during the SP approach. The SP EP technique demonstrated significant benefits, encompassing reduced intraoperative blood loss (SP 125.1 vs. MP 215.9 mL), shorter length of hospital stay (SP 12.6 vs. MP 31.9 h), reduced opioid use at the time of discharge (SP 14.4% vs. MP 85.1%), and an earlier Foley catheter removal (SP 6 vs. MP 8 days). From an oncological perspective, the rate of positive surgical margins remained comparable across both groups (p = 0.84). Regarding functional outcomes, the mean continence rates and Sexual Health Inventory for Men (SHIM) scores were identical between the two groups at 6 weeks, 3 months, and 6 months respectively. (4) Conclusion: SP EP RARP demonstrates similar performance to MP TP RARP in terms of oncologic and functional outcomes. However, SP EP RARP offers several advantages in reducing the overall hospital stay, decreasing postoperative pain and hence the overall opioid use, as well as shortening the time to catheter removal, all of which translates to reduced morbidity and facilitates the transition to outpatient surgery.

Central pathology review and its prognostic value in upper tract urothelial carcinoma patients: a nationwide multi-institutional study

The prognostic value of central pathology review in upper urinary tract cancer (UTUC) remains inadequately addressed in existing literature. In this study, we conducted an extensive central pathology review and presented its influence on multi-center UTUC studies. We conducted a retrospective review of patients who underwent radical nephroureterectomy or segmental resection for UTUC to determine eligibility for central pathology review. In the Taiwan UTUC Collaboration cohort, 377 cases met the criteria for pathology review. We assessed agreement between pathologists using both the total percentage of agreement and simple kappa statistics. The prognostic implications of original and review pathology for various parameters were examined using the Cox regression model. This study included 209 female and 168 male participants. Pathology review revealed substantial interobserver variability in pT staging, with a particularly high rate of pT2 cases being upgraded to pT3 upon central review (17/70 pT2 stage made by local pathologists were finally confirmed as pT3 disease by the review pathologist). The local pathologist cohort identified fewer significant histological predictors in survival models compared to the review pathology cohort. Advanced pT stage, perineural invasion (PNI), and positive surgical margin were independent predictors of poorer overall survival and cancer-specific survival. PNI, lymphatic vascular invasion, and positive surgical margin were independent predictors of disease recurrence. Substantial interobserver variability in histological assessment underscores the importance of centralized pathology review for both multi-center studies and accurate post-operative management of UTUC patients. Advanced stage, perineural invasion, and margin status were significant histological predictors of oncological outcomes.

A new era in surgical oncology: preliminary insights into the hinotori™ surgical robot system’s role in rectal surgery using the double bipolar method

BackgroundThe da Vinci™ Surgical System, recognized as the leading surgical robotic platform globally, now faces competition from a growing number of new robotic surgical systems. With the expiration of key patents, innovative entrants have emerged, each offering unique features to address limitations and challenges in minimally invasive surgery. The hinotori™ Surgical Robot System (hinotori), developed in Japan and approved for clinical use in November 2022, represents one such entrant. This study demonstrates initial insights into the application of the hinotori in robot-assisted surgeries for patients with rectal neoplasms.MethodsThe present study, conducted at a single institution, retrospectively reviewed 28 patients with rectal neoplasms treated with the hinotori from November 2022 to March 2024. The surgical technique involved placing five ports, including one for an assistant, and performing either total or tumor-specific mesorectal excision using the double bipolar method (DBM). The DBM uses two bipolar instruments depending on the situation, typically Maryland bipolar forceps on the right and Fenestrated bipolar forceps on the left, to allow precise dissection, hemostasis, and lymph node dissection.ResultsThe study group comprised 28 patients, half of whom were male. The median age was 62 years and the body mass index stood at 22.1 kg/m2. Distribution of clinical stages included eight at stage I, five at stage II, twelve at stage III, and three at stage IV. The majority, 26 patients (92.9%), underwent anterior resection using a double stapling technique. There were no intraoperative complications or conversions to other surgical approaches. The median operative time and cockpit time were 257 and 148 min, respectively. Blood loss was 15 mL. Postoperative complications were infrequent, with only one patient experiencing transient ileus. A median of 18 lymph nodes was retrieved, and no positive surgical margins were identified.ConclusionsThe introduction of the hinotori for rectal neoplasms appears to be safe and feasible, particularly when performed by experienced robotic surgeons. The double bipolar method enabled precise dissection and hemostasis, contributing to minimal blood loss and effective lymph node dissection.

Evaluation of the results of loop electrosurgical excision procedure surgical margin positivity and recurrence

Evaluation of the results of loop electrosurgical excision procedure surgical margin positivity and recurrence

The effect of surgical margin features on oncologic outcomes after radical prostatectomy

BackgroundEvaluation of the effect of additional surgical margin parameters on biochemical recurrence (BCR) in patients with positive surgical margins (PSM) after radical prostatectomy (RP).MethodsClinicopathological and outcome data from 91 patients with PSM who underwent RP were retrospectively analyzed. Additional surgical margin parameters (PSM length, highest Gleason grade (GG), localization of PSM (apex, bladder neck, or posterolateral), and unifocality or multifocality) were examined and their effects on BCR were investigated.ResultsFifty patients with PSM were included in the study. The mean age of the patients was 63.6 ± 6.9 years. The laparoscopic approach was undertaken more frequently, used for 36 (72%) patients compared to open RP performed in 14 cases (28%). The median follow-up time was 57.0 months (24.0–125.0 months). BCR developed in 14 (28%) patients during the follow-up period. Although mean BCR-free survival was shorter in cases with PSM length ≥ 3 mm compared to those with PSM length < 3 mm (90.4 vs. 108.2 months), multifocality compared to those with unifocality (62 vs. 97.4 months) and surgical margin GG ≥ 4 compared to those with GG 3 (87.4 vs. 97.5 months), the differences were not statistically significant (p = 0.251, p = 0.509 and p = 0.317, respectively). In addition, none of the PSM localizations affected BCR-free survival (p = 0.619). In univariate Cox regression analysis, PSM length affected BCR at a level close to statistical significance (HR = 1.16; p = 0.052). In multiple Cox regression analysis, main tumor Gleason score was determined to be a risk factor associated with BCR (HR = 4.75; p = 0.041).ConclusionsAlthough BCR-free survival was shortened in the presence of poor prognostic features (multifocal PSM, PSM length ≥ 3 mm, surgical margin GG ≥ 4) at the surgical margin, none of these parameters affected BCR at a statistically significant level. Gleason score of the main tumor was found to be a better prognostic factor for BCR.

On-clamp vs off-clamp robot-assisted partial nephrectomy for achieving modified trifecta: inverse probability of treatment weighting analysis from a high-volume tertiary robotic center.

On-clamp partial nephrectomy for the surgical treatment of renal masses poses the risk of ischemia and greater post-operative renal function loss. Conversely, the off-clamp technique might enhance renal function preservation by avoiding any ischemia time. Nevertheless, the debate persists regarding the efficacy of the on- versus off-clamp partial nephrectomy in achieving better surgical, functional, and oncological outcomes. We retrospectively assessed the data from patients undergoing Robot-Assisted Partial Nephrectomy (RAPN) from 2016 and 2023 in a tertiary robotic center. Inverse probability of treatment weighting (IPTW) was used to account for selection bias in treatment allocation. The main objective of the study was assessing the achievement rates of a modified trifecta within the two groups. Multivariable logistic regression analysis (MLRA) was employed to assess the predictors of trifecta achievement. 532 patients were included in the analysis, of whom 74.1% vs. 25.9% underwent on- and off-clamp, respectively. Balancing the two groups for the main predictors of on-clamp surgery, there were no significant differences between on- and off-clamp in terms of estimated blood loss, transfusion rate, intra- and post-operative complications, positive surgical margins, and post-operative mean reduction of eGFR. Finally, no differences were found in the rate of "trifecta" achievement between on-clamp and off-clamp RAPN (24.6% vs. 21%, p = 0.82). At MLRA, off-clamp technique was not a predictor of trifecta achievement compared to the on-clamp technique (off-clamp vs. on-clamp, aOR 1.24, 95% CIs [0.65-2.36], p = 0.58). Our study revealed that clamping technique does not imply clinically relevant differences in reaching trifecta outcomes.

Oncologic and Functional Outcomes of Salvage Robot-Assisted Radical Prostatectomy: Report of the First 10 Cases.

Salvage robot-assisted radical prostatectomy (sRARP) after PSA failure in patients who underwent initial radiotherapy or focal therapy has rarely been reported in Japan. We aimed to report the oncologic and functional outcomes of the first 10 cases of sRARP. Ten patients underwent sRARP after failing to respond to initial radiotherapy or focal therapy. Initial definitive treatment included volumetric modulated arc therapy, intensity-modulated radio therapy, stereotactic body radiotherapy, heavy-ion radiotherapy, low-dose-rate brachytherapy, and high-intensity focused ultrasound. We retrospectively investigated 10 cases on oncologic and functional outcomes of sRARP. The median PSA level at sRARP, amount of blood loss, and console time were 2.17 ng/mL, 100 mL, and 136 min, respectively. Positive surgical margins were found in half of the cases. Median follow-up was 1.1 years. There were no 30-day major complications. No patients had erections after sRARP. Urinary continence and biochemical recurrence (BCR) rate were 40% and 30% at 1 year after sRARP, respectively. Salvage RARP may be a feasible option after PSA failure in patients who underwent radiotherapy or focal therapy as initial treatment, showing acceptable BCR rate.

Squamous Cell Carcinoma In Situ-The Importance of Early Diagnosis in Bowen Disease, Vulvar Intraepithelial Neoplasia, Penile Intraepithelial Neoplasia, and Erythroplasia of Queyrat.

Cutaneous squamous cell carcinoma (cSCC) is the second-most-prevalent malignancy in humans. A delayed diagnosis of cSCC leads to heightened invasiveness and positive surgical margins. Bowen's disease (BD) represents an early form of cSCC and presents as a small erythematous, photo-distributed, psoriasiform plaque. Although certain dermoscopy features in BD are quite characteristic, histopathology remains the gold standard for diagnosis and provides a severity-scoring system that assists in guiding appropriate treatment strategies. The classification of precancerous lesions of the vulva and penis has undergone multifarious transformations due to variations in clinical and histopathological characteristics. Presently, erythroplasia of Queyrat is categorized as a clinical variant of penile intraepithelial neoplasia (PeIN). The diagnoses of vulvar intraepithelial neoplasia (VIN) and PeIN present significant challenges and typically necessitate one or more biopsies, potentially guided by dermoscopy. Aceto-white testing demonstrates a notably high negative predictive value for genital precancerous lesions. Histopathological examination represents the gold-standard diagnosis in VIN and PeIN, while p16 and p53 immunostainings alongside HPV testing provide crucial diagnostic clues. The histopathologic features, degree of differentiation, and associations with lichen planus, lichen sclerosus, and HPV guide the selection of conservative treatments or surgical excision.

Comparison of single-port versus multi-port robotic assisted partial nephrectomy: a systematic review and meta-analysis of perioperative and oncological outcomes.

The safety and efficacy of single-port and multi-port robot-assisted partial nephrectomy (SP-RAPN and MP-RAPN, respectively) were assessed for treating partial nephrectomy in this study. A systematic review of PubMed, Cochrane Library, and Web of Science databases was conducted up to June 2024 to compare studies on SP-RAPN and MP-RAPN. Primary outcomes included perioperative results, complications, and oncological outcomes. Eight studies involving 1014 patients were analyzed. For binary outcomes, comparisons were performed using odds ratios (OR), and for continuous variables, weighted mean differences (WMD) with 95% confidence intervals (CI). The search failed to discover significant meaningful variations in operating times (p = 0.54), off-clamp procedure (P = 0.36), blood loss (p = 0.31), positive surgical margins (PSMs) (p = 0.78), or major complications (Clavien-Dindo grade ≥ 3) (p = 0.68) between SP-RAPN and MP-RAPN. However, shorter hospital stays (WMD -0.26 days, 95% CI -0.36 to -0.15; p < 0.00001) and longer warm ischemia times (WIT) (WMD 3.13min, 95% CI 0.81-5.46; p = 0.008) were related to SP-RAPN, and higher transfusion rate (OR 2.99, 95% CI 1.31-6.80; p = 0.009) compared to MP-RAPN. SP-RAPN performed better in terms of hospital stay but had slightly higher rates of transfusion, off-clamp procedures, and warm ischemia time (WIT) compared to MP-RAPN. As an emerging technology, preliminary research suggests that SP-RAPN is a feasible and safe method for carrying out a nephrectomy partial. However, compared to MP-RAPN, it shows inferior outcomes regarding (WIT) and transfusion rates.

Development of preoperative nomograms to predict the risk of overall and multifocal positive surgical margin after radical prostatectomy

ObjectiveTo develop preoperative nomograms using risk factors based on clinicopathological and MRI for predicting the risk of positive surgical margin (PSM) after radical prostatectomy (RP).Patients and methodsThis study retrospectively enrolled patients who underwent prostate MRI before RP at our center between January 2015 and November 2022. Preoperative clinicopathological factors and MRI-based features were recorded for analysis. The presence of PSM (overall PSM [oPSM]) at pathology and the multifocality of PSM (mPSM) were evaluated. LASSO regression was employed for variable selection. For the final model construction, logistic regression was applied combined with the bootstrap method for internal verification. The risk probability of individual patients was visualized using a nomogram.ResultsIn all, 259 patients were included in this study, and 76 (29.3%) patients had PSM, including 40 patients with mPSM. Final multivariate logistic regression revealed that the independent risk factors for oPSM were tumor diameter, frank extraprostatic extension, and annual surgery volume (all p < 0.05), and the nomogram for oPSM reached an area under the curve (AUC) of 0.717 in development and 0.716 in internal verification. The independent risk factors for mPSM included the percentage of positive cores, tumor diameter, apex depth, and annual surgery volume (all p < 0.05), and the AUC of the nomogram for mPSM was 0.790 in both development and internal verification. The calibration curve analysis showed that these nomograms were well-calibrated for both oPSM and mPSM.ConclusionsThe proposed nomograms showed good performance and were feasible in predicting oPSM and mPSM, which might facilitate more individualized management of prostate cancer patients who are candidates for surgery.

Centralized prostatectomy with intraoperative NeuroSAFE margin assessment improves surgical margin control.

To investigate the surgical margin status in patients with prostate cancer who underwent robot-assisted radical prostatectomy (RARP) with intraoperative neurovascular structure-adjacent frozen-section analysis (NeuroSAFE) and evaluate differences compared to patients who underwent radical prostatectomy without NeuroSAFE. Between September 2018 and January 2021, 962 patients underwent centralized RARP with NeuroSAFE. A secondary resection was performed in case of a positive surgical margin (PSM) on intraoperative frozen section (IFS) analysis to convert a PSM into a negative surgical margin (NSM). A retrospective cohort consisted of 835 patients who had undergone radical prostatectomy in a tertiary centre without NeuroSAFE between January 2000 and December 2017. We performed multivariable logistic regression to evaluate differences in risk of PSM between cohorts after controlling for clinicopathological variables. Patients operated with NeuroSAFE in the centralized clinic had 29% PSM at a definitive pathological RP examination. The median cumulative length of definitive PSM was 1.1 mm (interquartile range: 0.4-3.8). Among 275 men with PSM, 136 (49%) had a cumulative length ≤1 mm and 198 (72%) ≤3 mm. After controlling for PSA, Grade group, cribriform pattern, pT-stage, and pN-stage, patients treated in the centralized clinic with NeuroSAFE had significantly lower odds on PSM (odds ratio [OR]: 0.70, 95% confidence interval [CI]: 0.56-0.88; P = 0.002), PSM length >1 mm (OR: 0.14, 95% CI: 0.09-0.22; P < 0.001), and >3 mm (OR: 0.21, 95% CI: 0.14-0.30; P < 0.001). This study provides a detailed overview of surgical margin status in a centralized RP NeuroSAFE cohort. Centralization with NeuroSAFE was associated with lower PSM rates and significantly shorter PSM cumulative lengths, indicating improved control of surgical margin status.

Efficacy of robot-assisted partial nephrectomy compared to conventional laparoscopic partial nephrectomy for completely endophytic renal tumor: a multicenter, prospective study

BackgroundThis study aimed to compare the efficacy of robot-assisted partial nephrectomy for completely endophytic renal tumors with the reported outcomes of conventional laparoscopic partial nephrectomy and investigate the transition of renal function after robot-assisted partial nephrectomy.MethodsWe conducted a prospective, multicenter, single-arm, open-label trial across 17 academic centers in Japan. Patients with endophytic renal tumors classified as cT1, cN0, cM0 were included and underwent robot-assisted partial nephrectomy. We defined two primary outcomes to assess functional and oncological aspects of the procedure, which were represented by the warm ischemic time and positive surgical margin, respectively. Comparisons were made using control values previously reported in laparoscopic partial nephrectomy studies. In the historical control group, the warm ischemia time was 25.2, and the positive surgical margin was 13%.ResultsOur per-protocol analysis included 98 participants. The mean warm ischemic time was 20.3 min (99% confidence interval 18.3–22.3; p < 0.0001 vs. 25.2). None of the 98 participants had a positive surgical margin (99% confidence interval 0–5.3%; p < 0.0001 vs. 13.0%). The renal function ratio of eGFR before and after protocol treatment multiplied by splits was 0.70 (95% confidence interval: 0.66–0.75). Factors such as preoperative eGFR, resected weight, and warm ischemic time influenced the functional loss of the partially nephrectomized kidney after robot-assisted partial nephrectomy.ConclusionsRobot-assisted partial nephrectomy for completely endophytic renal tumors offers a shorter warm ischemia time and comparable positive surgical margin rate compared with conventional laparoscopic partial nephrectomy.

Comparison of 3D-printed multichannel non–co-planar vaginal applicators and single-channel vaginal applicators for brachytherapy with positive or close surgical margins in cervical cancer

OBJECTIVEThis study was conducted to compare the differences between 3D-printed multichannel non-coplanar vaginal applicators and single-channel vaginal applicators in cervical cancer patients with positive or close surgical margins. METHODSBetween January 2015 and June 2023, 104 cervical cancer patients who underwent radical surgery with positive or close surgical margins were enrolled to receive concurrent intensity-modulated chemoradiotherapy combined with 3D-printed multichannel non-coplanar vaginal applicators (3D-printed group, 41 patients) or single-channel vaginal applicators (single-channel group, 63 patients) guided brachytherapy. The dosimetric parameters, 5-year local control (LC), progression-free survival (PFS), overall survival (OS) of two groups were retrospectively analyzed. RESULTSThe high-risk clinical target volume (D90, D100) and high-dose volume fraction (V150) in 3D-printed group were significantly higher than those in single-channel group (p<0.05), and the homogeneity index (HI) and conformal index (COIN) were equally better in 3D-printed group. In 3D-printed group, the D2cc, D1cc, and D0.1cc of the bladder and rectum were significantly lower than those of the single-channel group (p<0.05). The 3D-printed group had significantly superior 5-year LC (70.0% vs. 51.3%, P=0.041) and PFS (63.0% vs. 44.2%, P=0.045), but OS were not significantly different between treatment groups (75.4% vs. 59.7%, P=0.112). The incidence of radiation enteritis and cystitis was lower in the 3D-printed group than in the single-channel group, but no statistical difference was noted. CONCLUSIONSThe 3D-printed multichannel non-coplanar vaginal insertion applicators shows the advantage of target dose, improve the LC and PFS in patients with positive or close surgical margins after cervical cancer surgery. Thus, the popularization of this method and its application may be of value.

No difference in oncological outcomes and perioperative complications between patients with ESRD with unilateral and bilateral UTUC receiving radical nephroureterectomy

Patients with end stage renal disease (ESRD) are at high risk of developing upper tract urothelial carcinoma (UTUC). Due to high recurrence rate of UTUC in contralateral kidney and ureter, and high risk of complications related to surgery and anesthesia, whether it’s necessary to remove both kineys and ureters at one time remains in debate. We utilized Taiwanese UTUC Registry Database to valuate the difference of oncological outcomes and perioperative complications between patients with ESRD with unilateral and bilateral UTUC receiving surgical resection. Patients with ESRD and UTUC were divided into three groups, unilateral UTUC, previous history of unilateral UTUC with metachronous contralateral UTUC, and concurrent bilatetral UTUC. Oncological outcomes, perioperative complications, and length of hospital stays were investiaged. We found that there is no diffence of oncological outcomes including overall survival, cancer specific survival, disease free survival and bladder recurrence free survival between these three groups. Complication rate and length of hospital stay are similar. Adverse oncological features such as advanced tumor stage, lymph node involvement, lymphovascular invasion, and positive surgical margin would negatively affect oncological outcomes.

Adjuvant Hysterectomy in Patients After Radiation for Locally Advanced Cervical Cancer: A Single-Center Prospective Longitudinal Study.

Residual or recurrent cervical cancer post-CCRT is a challenging clinical issue, even though there has been much effort in recent decades to increase patient survival after radiation. There is a paucity of literature regarding the role of hysterectomy in recurrent/residual disease after radiation in LACC patients. Such a procedure is controversial and not routinely performed because of difficulties in obtaining tumor-free margins and the high rate of associated morbidity. Evaluate outcomes and morbidities in patients who had undergone hysterectomy for residual or recurrent disease after radiation in LACC patients. This is a prospective observational study on radiotherapy-treated LACC patients (IIB-III) with residual disease or recurrent disease who have undergone adjuvant hysterectomy. This study has been conducted at AHPGIC, Cuttack, with a sample size of 30 patients. 18/30 patients underwent extrafascial hysterectomy, and rest 12 patients had radical hysterectomy. No significant difference in complications, achieving tumor free margins or recurrences post adjuvant hysterectomy based on the radicality of surgery was observed. 5 cases of recurrences post-adjuvant hysterectomy were detected. Some of the factors which had significant association with recurrences post adjuvant hysterectomy were non squamous histology, no preoperative brachytherapy, deep stromal invasion and positive surgical margins. Median follow-up time was 14months (12-27months). This study shows that adjuvant hysterectomy is feasible with good outcome and acceptable morbidity after chemoradiotherapy in cervical cancer patients "If selection of patients for adjuvant hysterectomy is appropriate."

Systematic Biopsy vs. Prostatectomy: Evaluating Correlations and Grading Discrepancies in Prostate Cancer.

Background Prostate Cancer (PCa) represents agrowing global health challenge. The main factor in predicting PCa prognosis is represented by the Gleason Score (GS)therefore, the accuracy of pathological features from preoperative biopsy is critical in the management of the patient. We aimed to investigate the correlation between prostate biopsy parameters and the prostatectomy specimen pathological features and to identify factors that lead to over- and under-grading tumors in biopsy samples. Materials and methods We performed a retrospective study that included 110 male patients with confirmed PCa, selected based on specific inclusion criteria. Biopsy and radical prostatectomy (RP) specimens were analyzed using standard histopathological techniques, and pathological features were assessed according to the latest guidelines. Statistical analysis was performed using IBM SPSS Statistics version 26.0.0 (IBM Corp., Armonk, NY). Results The study included 110 male patients with a median age of 67 years old, ranging from 48 to 79 years old. Correlations between biopsy parameters and RP outcomes were assessed and revealed several key findings. The tumoral length on biopsy was correlated with positive surgical margin (r=0.289, p<0.01) and with tumoral volume (r=0.526, p<0.001) on prostatectomy. Patients with higher grade groups (GG) on biopsy had an approximately four times higher chance of exhibiting extraprostatic extension. We demonstrated a significant correlation between Gleason Pattern 4 (%GP4) on biopsy and pT stage, with pT4 showing the highest %GP4, and a noticeable increase in %GP4 as the pT stage progressed from pT2b to pT4. The study found a significantly higher rate of undergrading at biopsy (30.90%) compared to overgrading (6.36%). Additionally, greater tumor length and higher tumor percentages in biopsies improved grading accuracy (p<0.001). Conclusion Our findings suggest that systemic biopsies play a key role in predicting pathological outcomes, especially through parameters that serve as key prognostic markers. However, due to the potential of the biopsy results to be under- or overgraded, urologists should take into consideration the advantages of using repeat biopsies or additional imaging techniques to achieve a more precise diagnosis and treatment strategy.

Reirradiation in head and neck squamous cell carcinoma; prognostic indicators, oncologic and functional outcomes

ObjectivesPatients with recurrent squamous cell carcinoma of the head and neck (HNSCC) have a poor prognosis and limited therapeutic alternatives. While reirradiation is feasible, it is usually associated with high treatment toxicity and is not yet considered the standard of care. Based on current NCCN guidelines, in the context of very advanced head and neck cancer (recurrent and/or persistent disease), surgical intervention is explored initially with/without adjuvants while unresectable disease is approached with radiation and/or systemic therapies. Specific and reliable prognostic indicators for both -oncologic and functional outcomes- have yet to be defined for this population. MethodsRetrospective chart review of 54 patients treated with reirradiation at a tertiary academic institution between January of 1998 and January of 2024. Only patients with non-metastatic recurrent, and second primary HNSCC were included in the series. Demographics, staging, radiation dose and technique, additional therapy, histopathologic variables, EORTC toxicity, pre- and post-treatment PEG/tracheotomy dependency and oncologic outcomes were retrieved. ResultsThe study cohort consisted of 54 patients (37 males, 17 females) with HNSCC, averaging 62.7 years in age. Initial tumors were locally advanced in over 42 % of cases, with 58 % being node-negative. The head and cutaneous regions (24.5 %) and tongue (20.8 %) were the most common tumor sites. Primary surgical resection and adjuvant radiation were performed in 47.2 % of cases, and concurrent chemotherapy was used in 40.7 %. Reirradiation was mainly for local or regional recurrence (88.9 %), often following salvage surgery (68.5 %), with a mean dose of 5623 Gy over 52.5 fractions. Positive surgical margins were present in 29.4 % of cases, and extracapsular spread in 59.5 %. No significant differences were found between the salvage surgery and definitive reirradiation groups except for tumor site (P = 0.022). Median follow-up was 52.6 months, with 27 deaths reported. Lymphovascular invasion was significantly correlated with overall survival (P = 0.017), while initial tumor T-stage and neck disease involvement were linked to local-regional control (P = 0.030 and P = 0.033, respectively). Reirradiation increased tracheotomy and PEG-tube dependency by 20 % (P = 0.011) and 23 % (P = 0.003), respectively. ConclusionsReirradiation is a feasible therapeutic alternative in recurrent head and neck SCC. Oncologic outcomes observed in this series compare favorably to most published reports. Complete response and perineural invasion were independent prognostic factors for survival and locoregional control. While no mortality directly associated with treatment was observed in this series, reirradiation had a significant impact in functional outcomes in terms of increased risk of tracheotomy and peg tube dependency. Further studies are required to define the role of this treatment in head and neck cancer.