Non-resection Group Research Articles

The key point of transsphenoidal surgery for infradiaphragmatic craniopharyngioma：Better sellar diaphragm resection

BackgroundCraniopharyngiomas have a high recurrence rate and a poor prognosis, and the key methods for reducing recurrences are unknown. The aim of this study was to explore the key points of microscopic or endoscopic transsphenoidal surgery used to treat infradiaphragmatic craniopharyngiomas. MethodsWe reviewed the medical records of patients with infradiaphragmatic craniopharyngiomas who were admitted to Peking Union Medical College Hospital between 2011 and 2018. ResultsWhen considering tumor location, all 34 patients had intrasellar tumors, with 19 of them exhibiting suprasellar extensions. Of the 34 patients, 24 patients underwent resection under the microscope and the remaining 10 patients underwent transsphenoidal endoscopic surgery. Gross total tumor resection was achieved in 16 patients. Twelve patients underwent invaded sellar diaphragm resection, while the remaining 22 patients were not. Cerebrospinal fluid leaks occurred during surgery in 18 patients. Visual acuity improved in two patients. After an average follow-up of 31.1 months, 13 patients experienced tumor recurrence. The short term recurrence rate in the sellar diaphragm resection group was significantly lower compared to the non-resected group (P < 0.001). Moreover, based on distinct surgical methods, the endoscope group displayed a reduced short term recurrence rate compared to the microscope group (P = 0.0048). ConclusionInvaded sellar diaphragm resection emerges as a pivotal maneuver in craniopharyngioma surgery, substantively influencing tumor recurrence. Capitalizing on the advantageous angled lens of endoscopes, surgeons can achieve heightened visualization. Significantly, the endoscopic approach exhibits a superior capacity to curtail recurrence, while effectively managing potential complications, when contrasted with the microscope group.

Haglund resection versus Haglund non-resection for calcific insertional Achilles tendinopathy with Haglund deformity: A retrospective study

BackgroundCalcific insertional Achilles tendinopathy(CIAT) with Haglund deformity is a type of recalcitrant tendinopathy. The necessity of concomitant removal of Haglund deformity during CIAT treatment is controversial. The present study aimed to evaluate the functional outcomes between Haglund resection and Haglund non-resection in the treatment of CIAT with Haglund deformity. MethodsA retrospective study included 29 patients who were underwent Achilles tendon debridement, bursal excision, and subsequent tendon reattachment.for CIAT with Haglund deformity. All patients were divided into 2 groups according to Haglund resection (resection group, n = 16) and Haglund non-resection (non-resection group, n = 13) using the parallel line method on lateral calcaneal X ray after surgery. Patients were evaluated in terms of the American Orthopedic Foot and Ankle Society (AOFAS), Visual Analog Scale (VAS) and Victorian Institute of Sports Assessment–Achilles (VISA-A) scores and the mean time of activities of daily living (ADL). Anatomy changes included the Fowler-Philip angle, calcaneal pitch angle and Achilles tendon force arm were measured with radiography preoperatively and postoperatively. ResultsBoth groups exhibited a significant increase in AOFAS, VAS and VISA-A scores after surgery. There were no significant differences between the resection group and the non-resection group for the AOFAS (92.38 ± 5.7 vs. 93.15 ± 12.17; P = 0.82), VAS (0.5 ± 0.52 vs. 0.61 ± 0.87; P = 0.66) and VISA-A questionnaire (82.56 ± 13.46 vs. 74.92 ± 16.4; P = 0.18) at the latest follow-up. The mean time of ADL in the non-resection group was significantly faster compared to that of the resection group (8.15 ± 2.51 weeks vs. 11.31 ± 4.06 weeks, P = 0.02). The Fowler-Philip angle of the resection group decreased from 55.55° ± 12.34° preoperatively to 44.52° ± 10.24° at the latest follow-up (P = 0.001). The Fowler-Philip angle of the non-resection group decreased from 54.38° ± 8.41° preoperatively to 46.52° ± 8.02° at the latest follow-up (P = 0.016). The calcaneal pitch angle of the resection group increased from 22.76° ± 5.37° preoperatively to 25.98° ± 6. 4° at the latest follow-up (P = 0.018). The Achilles tendon force arm of the resection group decreased from 178.50 mm ± 5.37 mm preoperatively to 173.90 mm ± 8.07 mm at the latest follow-up (P = 0.018). ConclusionResection or non-resection of the posterosuperior calcaneal tuberosity for CIAT with Haglund deformity would both provide satisfactory functional outcomes. Haglund non-resection may expedite patients' return to their daily activities, suggesting a Haglund deformity resection may be unnecessary in the surgical treatment for CIAT with Haglund deformity.

Snížená hladina magnezia v moči po ileokolické resekci u pacientů s Crohnovou chorobou

Summary: Introduction: Urinary excretion of magnesium is an important preventive factor against nephrolithiasis by inhibiting several key processes in its pathogenesis. Patients with Crohn’s disease (CD) have an approximately 2-fold higher risk of lithiasis, especially those after ileocolic (IC) resection. The aim is to determine the magnesuria level in these patients and compare it with patients with CD and IC involvement without resection and then both groups with healthy controls. The secondary objective was to assess calciuria and other modifying factors. Methods: CD patients aged 18 years or older with IC resection (group 1) and terminal ileal involvement without resection (group 2) were enrolled in the study, with subjects without known bowel disease as controls (group 3). Exclusion criteria were citrate therapy, severe renal insufficiency (GFR &lt; 30 ml/ min/ 1.73 m2), more than two bowel resections, ileostomy, colectomy, short bowel syndrome, acute urinary tract infection and evidence of CD relapse. Anamnestic data were collected by questionnaire, blood and fresh urine samples were collected, renal and gallbladder ultrasound was performed for the presence of lithiasis, and patients underwent 24-hour urine collection to determine oxaluria, citraturia, magnesuria and calciuria. Results: 107 subjects were included in the study, including 34 patients with IC resection, 42 with CD without resection and 31 healthy controls. 43% were women, mean age was 38 ± 11.5 years. There was a significant difference in magnesuria values between the resection and non-resection group (median 2.28 vs. 3.97 mmol/ l; P = 0.047) and especially between the resection group and healthy controls (median 2.28 vs. 4.31 mmol/ l; P = 0.0003). The group without resection vs. healthy controls did not reach a significant difference (median 3.97 vs. 4.31 mmol/ l; P = 0.455). Calciuria values did not differ significantly between groups (median 3.75 vs. 4.6 vs. 4.3 mmol/ l; P = 0.293). Conclusion: Magnesuria values of CD patients after IC resection were significantly lower compared to the group of CD patients with IC involvement without resection and healthy controls. The group without resection achieved results comparable to controls. Calciuria values were not significantly different between groups in our study. We hypothesize that patients with CD after IC resection at higher risk of urolithiasis might benefit from Mg supplementation to prevent concretion formation. However, confirmation of this thesis will require verification by further research. Key words: inflammatory bowel disease – Crohn’s disease – urolithiasis – magnesium – calcium oxalate

Risk of tuberculosis after endoscopic resection and gastrectomy in gastric cancer: nationwide population-based matched cohort study.

This study aimed to investigate the association between gastrectomy and endoscopic resection for gastric cancer and the subsequent tuberculosis incidence. We conducted a nationwide matched cohort study using data from the Korea National Health Insurance Service from 2013 to 2019. We created two cohorts: patients who underwent gastrectomy and those who had endoscopic resection. Each patient was matched 1:1 with an unexposed individual based on index year, age, sex, income, and various comorbidities. The primary outcome was the incidence of tuberculosis during the follow-up period. Our study comprised 90,886 gastrectomy patients and 46,759 endoscopic resection patients. The tuberculosis incidence was significantly higher in the gastrectomy group compared to its matched non-gastrectomy group (IRR 1.69, 95% CI 1.43-1.99, p < .001). In contrast, there was no significant difference in tuberculosis incidence between the endoscopic resection group and its matched non-resection group (IRR 0.95, 95% CI 0.75-1.19, p = 0.627). The Kaplan-Meier cumulative incidence also did not differ between the two groups. However, tuberculosis incidence significantly increased in the first year after endoscopic resection. Gastrectomy for gastric cancer is associated with a higher incidence of subsequent tuberculosis, while no significant association was observed for endoscopic resection. However, tuberculosis incidence increases significantly during the first year after endoscopic resection.

A O03 Host phenotypic adversity independently predicts progression to resection in neoadjuvantly-treated pancreatic cancer

Abstract Background Neoadjuvant treatment (NAT) offers a modest survival benefit to the otherwise dismal outcomes of pancreatic ductal adenocarcinoma (PDAC), however methods for assessing treatment response and disease trajectory during NAT are limited. Cachexia and sarcopenia are hallmark features of PDAC and defining host phenotypic adversity is crucial in understanding the tumour-host relationship and its influence on clinical outcomes. We sought to determine the relationship between body composition, systemic inflammation, and outcomes in NAT PDAC to lay foundations for improving assessment of treatment response. Methods This is a retrospective, observational study with an intention-to-treat design, analysing resected (n = 109) and non-resected (n = 117) NAT PDAC (total n = 226) from the tertiary West of Scotland Pancreatic Unit, Glasgow Royal Infirmary. Patients were included if they had resectable or borderline resectable disease and received NAT. Patients were excluded if they had locally advanced or metastatic disease. Body composition was determined by single-slice L3 cross-sectional measurements. Results Patients with an adverse phenotype defined by change in body composition were less likely to progress to resection (40.9% vs 68.8%, p &amp;lt; 0.001). Logistic regression confirms the independence of this effect (OR 3.79, 95% CI 1.99-7.22, p &amp;lt; 0.001). There was a trend towards systemic inflammation in the non-resected group (CRP rise 51.4% vs 29.9%, p = 0.008). Patients treated with Folfirinox who required dose reduction received higher doses of irinotecan, 5-fluorouracil (bolus) and 5-fluorouracil (infusion) per unit muscle mass (7.3 vs 6.9mg/cm2⋅m-2, p = 0.010; 16.2 vs 14.7mg/cm2⋅m-2, p = 0.002; 96.5 vs 91.1mg/cm2⋅m-2, p = 0.026). Conclusions Host phenotypic adversity during NAT presents a potentially valuable addition to a limited arsenal of tools to aid decision making in resectable and borderline resectable PDAC. Early assessment of body composition trend during chemotherapy may present an opportunity to switch the host phenotype from adverse to favourable in some patients, or highlight the futility of continuing aggressive treatment in others. Chemotherapeutic prescribing by body surface area overlooks crucial differences in lean body mass and may be exposing patients to avoidable and burdensome toxicities.

Importance of Sacrotuberous Ligament in Transgluteal Approach for Sciatic Nerve Entrapment in the Greater Sciatic Notch (Piriformis Syndrome).

The efficacy of sciatic nerve decompression via transgluteal approach for entrapment of the sciatic nerve at the greater sciatic notch, called piriformis syndrome, and factors affecting the surgical outcome were analyzed. The outcome of pain reduction was analyzed in 81 patients with sciatic nerve entrapment who underwent decompression through a transgluteal approach. The patients were followed up for at least 6 months. The degree of pain reduction was analyzed using a numerical rating scale-11 (NRS-11) score and percent pain relief before and after last follow-up following surgery. Success was defined by at least 50% reduction in pain measured via NRS-11. To assess the degree of subjective satisfaction, a 10-point Likert scale was used. In addition, demographic characteristics, anatomical variations, and variations in surgical technique involving sacrotuberous ligamentectomy were analyzed as factors that affect the surgical outcome. At a follow-up of 17.5±12.5 months, sciatic nerve decompression was successful in 50 of 81 patients (61.7%), and the pain relief rate was 43.9±34.17. Subjective improvement based on a 10-point Likert scale was 4.90±3.43. Among the factors that affect the surgical outcome, only additional division of the sacrotuberous ligament during piriformis muscle resection played a significant role. The success rate was higher in the scarotuberous ligementectomy group (79.4%) than in the non-resection group (42.6%), resulting in statistically significant difference based on average NRS-11 score, percent pain relief, and subjective improvement (p<0.05, independent t-test). Sciatic nerve decompression is effective in pain relief in chronic sciatica due to sciatic nerve entrapment at the greater sciatic notch. Its effect was further enhanced by circumferential dissection of the sciatic nerve based on the compartment formed by the piriformis muscle and the sacrotuberous ligament in the greater sciatic notch.

Survival outcomes for patients with colorectal cancer with synchronous liver only metastasis.

Colorectal cancer with synchronous liver-only metastasis is managed with a multimodal approach, however, optimal sequencing of modalities remains unclear. A retrospective review of all consecutive rectal or colon cancer cases with synchronous liver-only metastasis was conducted from the South Australian Colorectal Cancer Registry from 2006 to 2021. This study aimed to investigate how order and type of treatment modality affects overall survival. Data of over 5000 cases were analysed (n = 5244), 1420 cases had liver-only metastasis. There were a greater number of colon than rectal primaries (N = 1056 versus 364). Colonic resection was the preferred initial treatment for the colon cohort (60%). In the rectal cohort, 30% had upfront resection followed by 27% that had chemo-radiotherapy as 1st line therapy. For the colon cohort, there was an improved 5-year survival with surgical resection as initial treatment compared to chemotherapy (25% versus 9%, P < 0.001). In the rectal cohort, chemo-radiotherapy as the initial treatment was associated with an improved 5-year survival compared to surgery or chemotherapy (40% versus 26% versus 19%, P = 0.0015). Patients who were able to have liver resection had improved survival, with 50% surviving over 5 years compared to 12 months in the non-resected group (P < 0.001). Primary rectal KRAS wildtype patients who underwent liver resection and received Cetuximab had significantly worse outcomes compared to KRAS wildtype patients who did not (P = 0.0007). Where surgery is possible, resection of liver metastasis and primary tumour improved overall survival. Further research is required on the use of targeted treatments in patients undergoing liver resection.

Response of Locally Advanced Pancreatic Cancer to Intratumoral Injection of Large Surface Area Microparticle Paclitaxel: Initial Report of Safety and Clinical Outcome.

Large surface area microparticle paclitaxel (LSAM-PTX) provides an intratumoral (IT) chemotherapeutic depot. Safety, tolerability, and tumor response to IT LSAM-PTX delivered by endoscopic ultrasound-fine needle injection were evaluated in subjects with unresectable locally advanced pancreatic cancer (LAPC). Ten subjects treated in a dose escalation phase and 22 additional subjects receiving 2 injections, 4 weeks apart, of 15 mg/mL LSAM-PTX were followed for 12 months. Paclitaxel pharmacokinetics were evaluated, imaging at 3 and 6 months determined tumor response, and multiplex immunofluorescence was conducted to characterize local immune response. Most treatment-emergent adverse events were attributed to LAPC. Plasma paclitaxel levels were negligible. Eight subjects' tumors became resectable after IT LSAM-PTX, and 5 of 6 (83%) were resected with R0. Multiplex immunofluorescence of resected tumors demonstrated increased T cells, natural killer cells, and macrophages and decreased myeloid-derived suppressor cells. Six-month disease control rate was 94%, and median overall survival was 19.7 months in the 2-injection subjects. For nonresected and resected groups, overall survival times were 18.9 and 35.2 months, respectively. Neoadjuvant IT LSAM-PTX, in combination with SOC, was well tolerated and may provide benefits to LAPC patients, evidenced by enhanced immune response, improved disease control rate, restaging leading to surgery, and extended survival.

Exploration of the prognostic value of the resection of adult brainstem high-grade glioma based on competing risk model, propensity score matching, and conditional survival rate

BackgroundAdult brainstem high-grade glioma (HGG) is a refractory disease, and the treatment strategy of resection is still controversial.ObjectiveTo investigate the prognostic value of brainstem HGG resection in adults.MethodsWe collected 126,386 samples from the Surveillance, Epidemiology, and End Results (SEER) database between 1998 and 2016, and screened 973 patients diagnosed with adult brainstem HGG, who were in turn, grouped into 899 cases of non-resections and 74 cases of resections. Competing risk models were used to screen independent prognostic factors. Propensity score matching (PSM) was performed to reduce the influence of confounding factors. Conditional survival (CS) rate was considered to evaluate the changes in overall survival (OS) and disease-specific survival (DSS) of patients with HGG over time.ResultsBased on the competing risk model and PSM, univariate analysis showed that age ≥ 45 years and male gender were poor prognostic factors for adult brainstem HGG. No previous history of glioma was a beneficial factor. Multivariate analysis revealed only the absence of a history of glioma to be a favorable prognostic factor. Considering the CS rate of the resection group, after the patient had survived for 3 years, the OS and DSS remained unchanged at 100% during the fourth and fifth years, whereas in the non-resection group, the OS and DSS of the patients were 82% and 74%, respectively.ConclusionAdult brainstem HGG resection has a poor prognosis in the early stage; however, patients have a potentially significant survival benefit after 3 years of survival.

Prognosis of patients with unresectable stage IV Colon cancer undergoing primary tumor resection: A multicenter study of minimally symptomatic or asymptomatic primary tumor

AimTo determine the factors affecting survival of patients with unresectable stage IV colon cancer with Primary tumour resection (PTR) as first treatment compared with those with conventional palliative chemotherapy. MethodologyPatient with minimally or asymptomatic stage IV colon cancer at diagnosis were identified from prospectively managed database in included centers from 2015 to 2020. Patient with and without PTR performed were followed up. Primary end point was overall survival. Risk factors affecting survival will be analysis by Kaplan Meier statistics and Cox regression analysis. Secondary outcome will be stoma formation, complication rate and reoperation. Results162 patients were included in analysis. 68 patients treated with systemic therapy PTR and 94 patients with tumour in-situ before systemic therapy. Baseline demographics including sex, age, functional status, tumour location, site of metastasis, RAS status were similar except there was slightly more liver metastasis on non-resection group (63.2% vs 79.8%). Cox regression analysis found PTR (HR 0.485, 0.302–0.778, p = 0.003)), bone metastasis (HR 3.163, 1.146–6.918, p = 0.004) commencement (HR 0.579, 0.345–0.971, p = 0.038) and completion of systemic therapy (HR 0.310, 0.178–0.539, p = 0.000) are independent factors predicting survival. The median overall survival after PTR vs tumour in-situ is 28 (IQR: 16–47) vs 12 (IQR:6–31) months (p<0.001). ConclusionResection of primary tumour is an independent good prognostic factor in relatively asymptomatic stage IV CA colon patients with unresectable metastasis. Resection should be considered as long as the procedure is straight forward and do not impose significant morbidities with careful patient selection.

Impact of surgery on survival outcomes for Bismuth type IV Klatskin tumors

BackgroundBismuth–Corlette type IV Klatskin tumors have conventionally been considered unresectable. This retrospective study aimed to demonstrate the survival improvement of patients with type IV Klatskin tumors when resected and suggest possible radiological features for R0 resectability. MethodsData on type IV Klatskin tumors diagnosed between 2008 and 2019 were reviewed retrospectively. Patients with distant metastasis, concomitant other cancers at the initial state, extensive vascular invasions, poor liver function, and poor general condition were excluded. The survival outcomes of patients and radiologic parameters of bile duct tumors were compared between the curative resection (R0, 1 resection) and non-resection groups. ResultsThe demographic findings of patients with curative resection (n = 48) and non-resection (n = 111) were comparable. Both were potentially resectable in the initial state. The postoperative morbidity was 22.9% and the 90-day mortality 4.2%. There was a significant difference in the median survival among the curative-intended resection, palliative treatment, and supportive care groups (35, 16, and 12 months, respectively; P < 0.001). DiscussionIn patients with type IV Klatskin tumor without extensive tumor invasion into adjacent tissues, including major vessels, surgical resection can be considered for better survival. Clinical registration numberIRB No. 2009–100-1157

Factors Predicting Outcome After Intracranial EEG Evaluation in Patients With Medically Refractory Epilepsy.

The aim of this study was to identify predictors of a resective surgery and subsequent seizure freedom following intracranial EEG (ICEEG) for seizure-onset localization. This is a retrospective chart review of 178 consecutive patients with medically refractory epilepsy who underwent ICEEG monitoring from 2002 to 2015. Univariable and multivariable regression analysis identified independent predictors of resection vs other options. Stepwise Akaike information criteria with the aid of clinical consideration were used to select the best multivariable model for predicting resection and outcome. Discrete time survival analysis was used to analyze the factors predicting seizure-free outcome. Cumulative probability of seizure freedom was analyzed using Kaplan-Meier curves and compared between resection and nonresection groups. Additional univariate analysis was performed on 8 select clinical scenarios commonly encountered during epilepsy surgical evaluations. Multivariable analysis identified the presence of a lesional MRI, presurgical hypothesis suggesting temporal lobe onset, and a nondominant hemisphere implant as independent predictors of resection (p < 0.0001, area under the receiver operating characteristic curve 0.80, 95% CI 0.73-0.87). Focal ICEEG onset and undergoing a resective surgery predicted absolute seizure freedom at the 5-year follow-up. Patients who underwent resective surgery were more likely to be seizure-free at 5 years compared with continued medical treatment or neuromodulation (60% vs 7%; p < 0.0001, hazard ratio 0.16, 95% CI 0.09-0.28). Even patients thought to have unfavorable predictors (nonlesional MRI or extratemporal lobe hypothesis or dominant hemisphere implant) had ≥50% chance of seizure freedom at 5 years if they underwent resection. Unfavorable predictors, including having nonlesional extratemporal epilepsy, should not deter a thorough presurgical evaluation, including with invasive recordings in many cases. Resective surgery without functional impairment offers the best chance for sustained seizure freedom and should always be considered first. This study provides Class II evidence that the presence of a lesional MRI, presurgical hypothesis suggesting temporal lobe onset, and a nondominant hemisphere implant are independent predictors of resection. Focal ICEEG onset and undergoing resection are independent predictors of 5-year seizure freedom.

Does hepatectomy improve outcomes of breast cancer with liver metastasis? A nationwide analysis of real-world data in Taiwan

Liver metastases from breast cancer are associated with poor prognosis, and treatment options are usually restricted to palliative systemic therapy. The impact of liver resection on metastasis remains controversial. The aim of this study is to investigate whether liver resection can offer better survival outcomes in cases of isolated liver metastases from breast cancer. We conducted a nationwide cohort study using a claims dataset from Taiwan's National Health Insurance Research Database (NHIRD). We identified all patients with breast cancer (diagnostic code ICD-9: 174.x) from the Registry for Catastrophic Illness Patient Database (RCIPD) of the NHIRD who underwent mastectomy between January 1, 2000, and December 31, 2008. Patients with other malignancies (history, initially, or during follow-up), those with a history of metastasis prior to or at initial admission for mastectomy, and those without liver metastases were excluded. Patients with other metastases between mastectomy and liver metastasis and those who died at first admission for liver resection were also excluded. All patients were followed up until December 31, 2013, or withdraw from the database because of death. Data were analyzed for 1,116 patients who fulfilled the inclusion criteria (resection group: 89; non-resection group: 1,027). There were no differences in age, Charlson Comorbidity Index, or major coexisting diseases except renal disease between two groups. Kaplan-Meier analysis demonstrated that the liver resection group had significantly better overall survival (OS) than the non-resection group. (1-year: 96.6% vs. 52.3%, 2-year: 86.8% vs. 35.4%, 3-year: 72.3% vs. 25.2%, 5-year: 51.6% vs. 16.9%, respectively, p<0.001). Cox analysis revealed that the liver resection group exhibited a significant improvement in patient survival (hazard ratio [HR] = 0.321, 95% confidence interval [CI]: 0.234-0.440, p<0.001). These findings indicate that liver resection may offer better survival benefit in patients with breast cancer who develop new liver metastases post mastectomy.

Optimizing Indications for Conversion Surgery Based on Analysis of 454 Consecutive Japanese Cases with Unresectable Pancreatic Cancer Who Received Modified FOLFIRINOX or Gemcitabine Plus Nab-paclitaxel: A Single-Center Retrospective Study.

The prognosis of initially unresectable pancreatic cancer (UR-PC) has improved since the introduction of FOLFIRINOX (FFX) or gemcitabine plus nab-paclitaxel (GNP) treatment. Nonetheless, the indications and optimal timing for conversion to resection remain unclear for UR-PC. The aim of this study is to evaluate the characteristics of cases with initially UR-PC who received modified FFX or GNP treatment. This retrospective study reviewed 454 consecutive Japanese UR-PC cases who received modified FFX/GNP treatment. Cases were categorized according to resection status, and overall survival (OS) was evaluated using a multivariable prognostic scoring model (0-4 points, higher score indicating more favorable prognostic factors). The overall resection rate was 16% for locally advanced UR-PC (UR-LA) and 5% for metastatic UR-PC (UR-M). The resection group had better OS than the nonresection group (median OS time: not reached versus 13.0 months, P < 0.001). The independent prognostic factors were normalized CA19-9 concentration, modified Glasgow prognostic score of 0, tumor shrinkage after chemotherapy, chemotherapy duration ≥ 8 months, and resection. Cases were grouped according to their prognostic score, and the results suggested that candidates for resection might have prognostic scores of 4 points in UR-M cases or 2-4 points in UR-LA cases. Stratification according to prognostic score was useful in predicting the outcomes of UR-PC cases and may aid in identifying cases who might benefit from surgical treatment after responding to chemotherapy.

The Relationship between Nutritional Status and Body Composition with Clinical Parameters, Tumor Stage, CA19-9, CEA Levels in Patients with Pancreatic and Periampullary Tumors.

Recent studies have obtained inadequate data on the association between nutritional status, body composition, clinical parameters and tumor stage in patients withpancreatic and periampullary tumors. The purpose of this study was to assess the relationship between nutritional status (NS), body composition (BC) and selected clinical parameters in patients with pancreatic and periampullary cancer, as well as describe the differences between resection and non-resection groups. This is a prospective study of 76 patients with pancreatic and periampullary tumors. We evaluated NS, BMI, body mass loss (BML) and albumin, total protein, CRP, CEA, CA19-9, lipase, amylase, tumor stage, and BC using bioelectrical impedance (BIA). All subjects were divided into resection (n = 59) and non-resection (n = 17) groups. The non-resection group had a worse NS, as well as increased amylase and WBC, compared to the resection. The selected parameters of BC corresponded to BML albumin, TP, NS, age, BMI, Karnofsky, RBC, HCT and HGB. No associations were found between BC with tumor size, CRP, CA19-9, and CEA. We recorded the relationship between metastasis and NRS, as well as tumor size with SGA. The percentage of BML was positively correlated with age and CRP but negatively correlated with RBC, HGB, HCT and anthropometric measurements. We found many statistical correlations with NS and selected parameters, as well as differences between the resection and non-resection group. The detection of early prognostic factors of nutritional impairments would improve the quality of life and reduce the rate of postoperative complications.

Pseudocapsular resection in elderly patients with non-functioning pituitary adenoma

ObjectiveThe safety of transsphenoidal surgery (TSS) for pituitary adenoma in elderly populations is becoming a new topic in our aging society. However, previous studies did not focus on the surgical procedures in elderly patients. We attempted to clarify the safety of TSS and the influence of pseudocapsular resection in elderly patients with non-functioning pituitary adenoma (NFPA). MethodsA total of 284 patients undergoing initial TSS for NFPA were categorized into two groups as follows: 1) Elderly group (n = 69; age ≥ 70 years); and 2) Younger group (n = 215; age < 70 years). Furthermore, all patients were newly divided into the two following categories: 1) Resected group (n = 121, with total pseudocapsule resection); and 2) Non-Resected group (n = 163, without total pseudocapsule resection). The main outcome measure was the incidence of perioperative complications and the rate of severe growth hormone deficiency (sGHD) after TSS. ResultsThere were no significant differences in the rates of perioperative complication between the Elderly and Younger groups. Furthermore, pseudocapsular resection did not increase the surgical risks in either group. On the other hand, sGHD only showed a significant improvement in the Younger group. The only factor predicting the new development of sGHD following TSS was an older age, not pseudocapsule resection. ConclusionsAging does not increase the perioperative complications of TSS for NFPA; however, aging has a negative influence on the postoperative function of GH secretion. In contrast, pseudocapsular resection does not have any negative influence on the perioperative complications or postoperative function of GH secretion, even in elderly patients, based on the authors’ experience and surgical technique.

Impact of conversion surgery on survival in locally advanced pancreatic cancer patients treated with FOLFIRINOX chemotherapy.

Locally advanced (unresectable) pancreatic cancer (LAPC) is surgically unresectable and often treated with chemotherapy. Most previous studies, that have evaluated conversion surgery after chemotherapy, included heterogeneous patients and chemotherapy regimens, making it challenging to determine the impact of FOLFIRINOX. The present study evaluated the survival benefit of conversion surgery in patients with LAPC who received FOLFIRINOX chemotherapy, and analyzed the prognostic factors. Patients with LAPC who received FOLFIRINOX as first-line therapy for at least four cycles were included. During chemotherapy, surgical eligibility was determined based on radiologic and metabolic response to the treatment. Clinicopathologic characteristics were compared between the curative-intent surgery and non-resection groups, and the prognostic factors were analyzed. A total of 279 patients were included. The rates of partial response (PR) and stable disease (SD) were 34.1% and 51.4%, respectively, and 16.8% patients underwent curative-intent surgery. The median survival was significantly longer in the resection group than in the non-resection group (56 vs 21months, P<.001). In a multivariate analysis, curative-intent surgery (HR 0.260; P<.001) was the most important factor. Conversion surgery after FOLFIRINOX chemotherapy effectively rescues patients with LAPC. Patients without progression after FOLFIRINOX could be considered as potential candidates for conversion surgery.

İnflamatuar belirteçler inkarsere inguinal hernilerde barsak nekrozunu öngörebilir mi?

Aim: To evaluate the predictive or diagnostic value of inflammatory markers in the presence of bowel necrosis in patients with an incarcerated inguinal hernia.&#x0D; Material and Methods: The sample consisted of 246 patients that were admitted to the Emergency Service of Ankara Numune Training and Research Hospital and were operated on between January 2013 and January 2018 with a diagnosis of incarcerated inguinal hernia (IIH). The electronic patient records were screened to obtain the blood test results pertaining to lymphocyte count, neutrophil count, neutrophil/lymphocyte ratio (NLR), red cell distribution width (RDW), platelet count, and RDW/platelet ratio; surgical notes concerning resection status and inguinal hernia type; and demographic data. The patients included in the study were divided into two groups as those that had received a bowel resection and those that had not undergone this procedure.&#x0D; Results: Of the 246 patients, 159 (65%) were male and 87 (35%) were female. The median age (interquartile range) was 71 (66-78) years and 62 (50-74) years in the resection (n= 23) and non-resection (n= 223) groups, respectively. There was a statistically significant difference between the two groups in terms of age (p= 0.004), neutrophil count (0.001), NLR (p= 0.000), and lymphocyte count (0.000). The multivariate analysis revealed that NLR (odds ratio= 1.113, 95% confidence interval value: 1.055-1.175, and p= 0.000) was individually, independently and significantly associated with bowel resection. &#x0D; Conclusion: Considering that it is possible to prevent the strangulation of a hernia in patients with IIH, urgent surgery is recommended for patients with an NLR of &gt; 6.5.

Are all Bismuth type IV Klatskin tumors unresectable? Impact of surgery on survival outcomes and radiologic parameters of resectability for Bismuth type IV Klatskin tumor

The Bismuth-Corlette type IV Klatskin tumor has been considered as unresectable. This study was to demonstrate survival improvement of type IV Klatksin tumor when resected, and suggest possible radiological features for R0 resectability. Data on type IV Klatskin tumor diagnosed from 2008 to 2019 were retrospectively reviewed. Patients with poor general condition/liver function, distant metastasis, concomitant other cancers at the initial state, and extensive vascular invasion were excluded. Survival outcomes and radiologic parameters of bile duct tumor were compared between curative-intended resection (R0, 1 resection) and non-resection groups. Demographic findings of patient with curative-intended resection (n = 48) and with non-resection (n = 111) were comparable. Both were potentially resectable at the initial state. The most common surgical procedure was the right-sided hepatectomy (60.4%). The postoperative morbidity was 22.9% and the 90-days mortality 4.2%. There was a significant difference in median survival month among the curative-intended resection, palliative treatment, and supportive care (35, 16, and 12 months respectively; p < 0.001). In right-sided hepatectomy, shorter length of the left bile duct tumor (17.89 ± 6.42, 23.74 ± 7.48; p < 0.001) and longer length of left tumor end to the umbilical point (25.59 ± 7.69, 14.52 ± 9.40; p < 0.001) and in left-sided hepatectomy, shorter length of the right anterior bile duct tumor (17.22 ± 6.07, 21.50 ± 7.46; p = 0.001) were observed in the curative-intended resection compared to the non-resection group. In patients without extensive tumor extension into adjacent tissues including major vessels, aggressive surgical resection should be considered because it warrants markedly better survival than any other treatment.

Centralized repeated resectability assessment of patients with colorectal liver metastases during first-line treatment: prospective study.

Metastasectomy is probably underused in metastatic colorectal cancer. The aim of this study was to investigate the effect of centralized repeated assessment on resectability rate of liver metastases. The prospective RAXO study was a nationwide study in Finland. Patients with treatable metastatic colorectal cancer at any site were eligible. This planned substudy included patients with baseline liver metastases between 2012 and 2018. Resectability was reassessed by the multidisciplinary team at Helsinki tertiary referral centre upfront and twice during first-line systemic therapy. Outcomes were resectability rates, management changes, and survival. Of 812 patients included, 301 (37.1 per cent) had liver-only metastases. Of these, tumours were categorized as upfront resectable in 161 (53.5 per cent), and became amenable to surgery during systemic treatment in 63 (20.9 per cent). Some 207 patients (68.7 per cent) eventually underwent liver resection or ablation. At baseline, a discrepancy in resectability between central and local judgement was noted for 102 patients (33.9 per cent). Median disease-free survival (DFS) after first resection was 20 months and overall survival (OS) 79 months. Median OS after diagnosis of metastatic colorectal cancer was 80, 32, and 21 months in R0-1 resection, R2/ablation, and non-resected groups, and 5-year OS rates were 68, 37, and 9 per cent, respectively. Liver and extrahepatic metastases were present in 511 patients. Of these, tumours in 72 patients (14.1 per cent) were categorized as upfront resectable, and 53 patients (10.4 per cent) became eligible for surgery. Eventually 110 patients (21.5 per cent) underwent liver resection or ablation. At baseline, a discrepancy between local and central resectability was noted for 116 patients (22.7 per cent). Median DFS from first resection was 7 months and median OS 55 months. Median OS after diagnosis of metastatic colorectal cancer was 79, 42, and 17 months in R0-1 resection, R2/ablation, and non-resected groups, with 5-year OS rates of 65, 39, and 2 per cent, respectively. Repeated centralized resectability assessment in patients with colorectal liver metastases improved resection and survival rates.