Significance and reliability of pathologic marker Ki-67 in patients with neuroendocrine cancers.

2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 264-264 ◽  
Author(s):  
S. Singh ◽  
Y. Feinberg ◽  
C. Rowsell ◽  
C. Law
Keyword(s):  
Treatment Options ◽  
Kappa Statistic ◽  
Categorical Variables ◽  
Rank Test ◽  
Ki 67 ◽  
Exact Test ◽  
Expert Pathologist ◽  
Group A ◽  
Group B ◽  
Neuroendocrine Cancers

264 Background: Molecular markers, especially Ki-67, in neuroendocrine cancers (NETs) have become increasingly important. Debate exists as to the optimal role of ki-67 in the treatment of this uncommon cancer. This study was designed to examine the significance of ki-67 as a clinical predictor and its reliability in the treatment of NETs. Methods: A retrospectively assembled integrated database with prospectively collected data of patients undergoing multidisciplinary management for NETs between 2000 to 2009 was analysed. Clinical and outcomes data were collected. Ki-67 was then categorized to Group A (≤2%), B (3-15%) and C (>15%). We compared the original Ki-67 value to the reviewed value. We then used a kappa statistic to calculate the inter-rater agreement between the original and reviewed determination of Ki-67. Fisher's exact test was used to compare categorical variables. Survival was evaluated using the log-rank test. All analyses were carried out using SAS 9.1.3. Results: A total of 184 patients were seen at our clinic. Ki-67 correlated with metastases at presentation (36, 52, 63% for Groups A, B, C respectively, p<0.05), while influencing treatment with chemotherapy even in the absence of metastases (14, 29, 57% for Groups A, B, C respectively, p< 0.002). Ki-67 predicted overall survival (p=0.0005) in favor of Group A. 99 patients had an original Ki-67 reported from the referring center and then a review by an expert pathologist at the multidisciplinary clinic. In Group A, there was 94.4% agreement, with 3.7% of cases upgraded at review to Group B and 1.9% of cases upgraded to Group C. In Group B, there was 94.3% agreement, with 5.7% of cases downgraded to Group A, and 0% upgraded. In Group C, there was 90% agreement, with 10% of cases downgraded to Group B and none to Group A (kappa = 0.89). Conclusions: Our previous report had demonstrated that Ki-67 influenced decisions regarding treatment options. In our updated population of NETs patients, Ki-67 continued to predict biology, influence treatment, and predict survival. In addition we demonstrated high reproducibility of Ki-67. It appears that with modern techniques Ki-67 can be highly reproducible and reliable tool in improving outcomes in this patient population. No significant financial relationships to disclose.

Piperacillin/tazobactam monotherapy versus combination ceftazidime plus amikacin for the treatment of febrile neutropenia in patients with cancer: A Hellenic Co-Operative Oncology Group Study

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 18590-18590
Author(s):  
D. Pectasides ◽  
G. Fountzilas ◽  
G. Samonis ◽  
D. Panidis ◽  
I. Grimani ◽  
...  
Keyword(s):  
Febrile Neutropenia ◽  
Patient Characteristics ◽  
Treated Group ◽  
Categorical Variables ◽  
Duration Of Treatment ◽  
Exact Test ◽  
Treatment Groups ◽  
Group A ◽  
Group B ◽  
Febrile Episodes

18590 Background: Combinations of β-lactam antibiotics and aminoglycosides are considered standard therapy for febrile neutropenia. Monotherapies have been proposed as standard treatments, demonstrating equal efficacy and better safety. Methods: This is a prospective, multi-centre, randomized clinical trial. Cancer patients with absolute neutrophil count (ANC) <1,000/mm3 and fever >38oC for ≥ 2 hours were randomized to either piperacillin/tazobactam 4.5 g every 8 h i.v. (group A) or ceftazidime 2 g every 8 h plus amikacin 15 mg/kg i.v. per day (group B). In case of fever >38oC 48 h after initiation of the therapy, vancomycin 500 mg every 6 h i.v. was added. Minimal duration of treatment was 72 hours. Treatment was continued for 7 days in case of improvement, otherwise vancomycin was added or the study therapy was discontinued. Early efficacy was assessed on day 3 and overall response 4 days after the end of treatment. Complete success was defined the patient to become afebrile and no other antibiotics to be added. Treatment failures were classified in two categories, those in which vancomycin was added to the study regimen, and those in which other antibiotics were used. Categorical variables were compared between treatment groups with the use of Fisher’s exact test, while for continuous Wilcoxon’s rank sum test was used. Results: One hundred twenty-seven febrile episodes were treated (group A: 66, group B: 61). Patient characteristics were well balanced in terms of age, underlying malignancies, ANC, and granulocyte-colony stimulating factor (G-CSF) support. Both treatments were well tolerated. No significant differences were seen in terms of success to treatment. Complete success was achieved in 45 (68%) of patients in group A and 40 (66%) in group B, while another 8 patients in group A (12%) and 6 in group B (10%) required addition of pre-defined anti-staphyloccocci antibiotic. Conclusions: Empirical treatment of febrile neutropenic episodes with piperacillin/tazobactam monotherapy appears to be as effective as the “standard” ceftazidime/amikacin combination. No significant financial relationships to disclose.

Tissue Ki67 proliferative index expression and pathological changes in hemodialysis arteriovenous fistulae: Preliminary single-center results

2021 ◽  
pp. 112972982110154
Author(s):  
Raffaella Mauro ◽  
Cristina Rocchi ◽  
Francesco Vasuri ◽  
Alessia Pini ◽  
Anna Laura Croci Chiocchini ◽  
...  
Keyword(s):  
Morphological Changes ◽  
Hot Spot ◽  
Wall Thickening ◽  
Proliferating Cells ◽  
Ki 67 ◽  
Group A ◽  
The Mean ◽  
Set Up ◽  
Group B

Background: Arteriovenous fistula (AVF) for hemodialysis integrates outward remodeling with vessel wall thickening in response to drastic hemodynamic changes. Aim of this study is to determine the role of Ki67, a well-established proliferative marker, related to AVF, and its relationship with time-dependent histological morphologic changes. Materials and methods: All patients were enrolled in 1 year and stratified in two groups: (A) pre-dialysis patients submitted to first AVF and (B) patients submitted to revision of AVF. Morphological changes: neo-angiogenesis (NAG), myointimal thickening (MIT), inflammatory infiltrate (IT), and aneurysmatic fistula degeneration (AD). The time of AVF creation was recorded. A biopsy of native vein in Group A and of arterialized vein in Group B was submitted to histological and immunohistochemical (IHC) analysis. IHC for Ki67 was automatically performed in all specimens. Ki67 immunoreactivity was assessed as the mean number of positive cells on several high-power fields, counted in the hot spots. Results: A total of 138 patients were enrolled, 69 (50.0%) Group A and 69 (50.0%) Group B. No NAG or MIT were found in Group A. Seven (10.1%) Group A veins showed a mild MIT. Analyzing the Group B, a moderate-to-severe MIT was present in 35 (50.7%), IT in 19 (27.5%), NAG in 37 (53.6%); AD was present in 10 (14.5%). All AVF of Group B with the exception of one (1.4%) showed a positivity for Ki67, with a mean of 12.31 ± 13.79 positive cells/hot spot (range 0–65). Ki67-immunoreactive cells had a subendothelial localization in 23 (33.3%) cases, a myointimal localization in SMC in 35 (50.7%) cases. The number of positive cells was significantly correlated with subendothelial localization of Ki67 ( p = 0.001) and with NA ( p = 0.001). Conclusions: Native veins do not contain cycling cells. In contrast, vascular cell proliferation starts immediately after AVF creation and persists independently of the time the fistula is set up. The amount of proliferating cells is significantly associated with MIT and subendothelial localization of Ki67-immunoreactive cells, thus suggesting a role of Ki-67 index in predicting AVF failure.

Perforator-Based Flap Reconstruction after Melanoma Resection: Evaluation of Oncological, Aesthetic, and Functional Outcomes

2021 ◽  
Author(s):  
Beniamino Brunetti ◽  
Rosa Salzillo ◽  
Stefania Tenna ◽  
Bruno Brunetti ◽  
Mario Alessandri Bonetti ◽  
...  
Keyword(s):  
Functional Outcomes ◽  
Locoregional Recurrence ◽  
Demographic Data ◽  
Exact Test ◽  
Significant Difference ◽  
Chi Squared ◽  
Group A ◽  
The Aesthetic ◽  
One Year ◽  
Group B

Abstract Background Evidence in literature about the best reconstructive approach after melanoma resection is controversial, with some authors advocating that tissue rearrangement flap techniques might hinder the early detection of local relapses. The aim of the present study is to evaluate oncological, aesthetic, and functional outcomes following melanoma reconstruction using pedicled perforator-based flaps. Methods The authors reviewed all patients affected by melanoma treated during a 6-year period. Demographic data, tumor characteristics, and operative variables were evaluated. Locoregional recurrence was assessed with clinical and radiological follow-up. One-year postoperatively patients rated on a 5-point Likert scale the aesthetic and functional outcomes of the procedure. Three blind observers examined preoperative and 1-year postoperative photographs and rated the aesthetic outcome of the reconstructive procedure. Results One-hundred sixty-five patients were treated with wide excision and delayed reconstruction, including pedicled perforator-based flaps in 70 patients (group A) and primary closure in 95 patients (group B). Mean Breslow thickness was 2.972 and 2.189 mm in group A and B, respectively. There was no statistically significant difference in locoregional recurrence (chi-squared test, p = 0.8333; Fisher's exact test, p > 0.9999) between the two groups. Group A reported a higher satisfaction with both the aesthetic (mean rating 4.390 in group A and 4.094 in group B) and functional (mean rating 4.732 in group A and 4.170 in group B) outcomes of the procedure, the latter being statistically significant (p = 0.0006). Conclusion This series suggests that pedicled perforator-based flaps provide optimal aesthetic and functional outcomes in melanoma reconstruction without impairing the locoregional control of the disease.

scholarly journals Transplantation of Porcine Hepatocytes Cultured with Polylactic Acid-O-Carboxymethylated Chitosan Nanoparticles Promotes Liver Regeneration in Acute Liver Failure Rats

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Zhong Chen ◽  
Renan Chang ◽  
Weijun Guan ◽  
Hongyu Cai ◽  
Fei Tang ◽  
...  
Keyword(s):  
Liver Regeneration ◽  
Chitosan Nanoparticles ◽  
Collagen Gel ◽  
Post Transplantation ◽  
Ki 67 ◽  
Group A ◽  
Group B ◽  
Group D ◽  
High Liver ◽  
Porcine Hepatocytes

In this study, free porcine hepatocytes suspension (Group A), porcine hepatocytes embedded in collagen gel (Group B), porcine hepatocytes cultured with PLA-O-CMC nanoparticles and embedded in collagen gel (Group C), and PLA-O-CMC nanoparticles alone (Group D) were transplanted into peritoneal cavity of ALF rats, respectively. The result showed that plasma HGF levels were elevated post-transplantation with a peak at 12 hr. The rats in Group C showed highest plasma HGF levels at 2, 6, 12, 24 and 36 hr post-transplantation and lowest HGF level at 48 hr. Plasma VEGF levels were elevated at 48 hr post-transplantation with a peak at 72 hr. The rats in Group C showed highest plasma HGF levels at 48, 72, and 96 hr post-transplantation. The liver functions in Group C were recovered most rapidly. Compared with Group B, Group C had significant high liver Kiel 67 antigen labeling index (Ki-67 LI) at day 1 post-HTx (P<.05). Ki-67 LI in groups B and C was higher than that in groups A and D at days 5 and 7 post-HTx. In conclusion, intraperitoneal transplantation of porcine hepatocytes cultured with PLA-O-CMC nanoparticles and embedded in collagen gel can promote significantly liver regeneration in ALF rats.

Prevention of postoperative posterior tethering of spinal cord after resection of ependymoma

2003 ◽  
Vol 99 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Takeo Goto ◽  
Kenji Ohata ◽  
Toshihiro Takami ◽  
Misao Nishikawa ◽  
Akimasa Nishio ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Neurological Deterioration ◽  
Fisher Exact Test ◽  
Content Type ◽  
Exact Test ◽  
Spinal Ependymoma ◽  
Group A ◽  
Delayed Neurological Deterioration ◽  
Group B ◽  
Fine Print

Object. The authors evaluated an alternative method to avoid postoperative posterior tethering of the spinal cord following resection of spinal ependymomas. Methods. Twenty-five patients with spinal ependymoma underwent surgery between 1978 and 2002. There were 16 male and nine female patients whose ages at the time of surgery ranged from 14 to 64 years (mean 41.8 years). The follow-up period ranged from 6 to 279 months (mean 112.4 months). In the initial 17 patients (Group A), the procedure to prevent arachnoidal adhesion consisted of the layer-to-layer closure of three meninges and laminoplasty. In the subsequently treated eight patients (Group B), the authors performed an alternative technique that included pial suturing, dural closure with Gore-Tex membrane—assisted patch grafting, and expansive laminoplasty. In Group A, postoperative adhesion was radiologically detected in eight cases (47%), and delayed neurological deterioration secondary to posterior tethering of the cord was found in five cases. In Group B, there was no evidence of adhesive posterior tethering or delayed neurological deterioration. A significant intergroup statistical difference was demonstrated for radiologically documented posterior tethering (p < 0.05, Fisher exact test). Moreover, patients with radiologically demonstrated posterior tethering suffered a significant delayed neurological functional deterioration (p < 0.01, Fisher exact test). Conclusions. This new technique for closure of the surgical wound is effective in preventing of postoperative posterior spinal cord tethering after excision of spinal ependymoma.

scholarly journals Prognostic Significance of Substance P/Neurokinin 1 Receptor and Its Association with Hormonal Receptors in Breast Carcinoma

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Riffat Mehboob ◽  
Syed Amir Gilani ◽  
Amber Hassan ◽  
Sadaf ◽  
Imrana Tanvir ◽  
...  
Keyword(s):  
Breast Carcinoma ◽  
Substance P ◽  
Tumor Cells ◽  
Prognostic Significance ◽  
Positive Staining ◽  
Ki 67 ◽  
Neurokinin 1 Receptor ◽  
Group A ◽  
Neurokinin 1 ◽  
Group B

Expression and immunolocalization of Substance P (SP)/Neurokinin-1 Receptor (NK-1R) in breast carcinoma (BC) patients and its association with routine proliferative markers (ER, PR, HER2/neu, and Ki-67) were evaluated. A cross-sectional study was performed on 34 cases of BC. There were 23 cases of group A (grade III), 8 of group B (grade II), and only 3 cases of group C (grade I). All samples were then processed for SP and NK-1R immunohistochemistry for few cases. 14/23 cases (61%) of group A, 7/8 cases (88%) of group B, and 2/3 (67%) cases of group C were SP positive. Overall, strong staining (≥10% tumor cells), labeled as “+3,” was observed in 9/14 (64.2%) cases of group A and 1/8 (12.5%) cases of group B. Moderate staining labelled as “+2” (in ≥10% tumor cells) was observed in 3/14 (21.4%) cases of group A and 4/8 (50%) cases of group B. Weak positive staining “+1” was observed in only 2/14 (14.28%) cases of group A, 2/8 (25%) cases of group B, and all 2/2 (100%) cases of group C. SP and NK-1R are overexpressed in breast carcinomas, and there is significant association between the grade of tumor and their overexpression.

scholarly journals Palmoplantar psoriasis: a comparative therapeutic study

2019 ◽  
Vol 5 (4) ◽  
pp. 779
Author(s):  
Sathya Narayanan Rajendran ◽  
Sukanya Mathupal Gurusamy
Keyword(s):  
Treatment Options ◽  
Clinical Manifestations ◽  
Simple Random Sampling ◽  
Inflammatory Dermatosis ◽  
Duration Of Illness ◽  
Erythrodermic Psoriasis ◽  
Life Threatening ◽  
Group A ◽  
Group B ◽  
Therapeutic Study

<p class="abstract"><strong>Background:</strong> Psoriasis is an immunologically mediated inflammatory dermatosis presenting with extremely variable clinical manifestations ranging from indolent lesions to life threatening forms of pustular and erythrodermic psoriasis. Palmoplantar psoriasis present as hyperkeratotic scaly plaques with fissures and can be managed with different treatment forms. This study was done to compare the efficacy between topical and systemic treatment options.</p><p class="abstract"><strong>Methods:</strong> The study was conducted in a tertiary level teaching hospital after ethical committee clearance. Fifty patients with palmoplantar psoriasis were allocated into the two groups using simple random sampling. PPPASI scoring was calculated to assess the extent of involvement. Patients in Group A were prescribed calcipotriol with clobetasol propionate ointment. Group B patients were given tablet methotrexate.<strong></strong></p><p class="abstract"><strong>Results:</strong> Twenty eight patients were males M: F of 1.27: 1. Mean age was 36. Mean duration of illness was eleven months. Most of these patients were manual laborers. 32 patients had lesions over both palms and soles, 9 over palms alone and 9 involving soles alone. Mean PASI reduction at 16 weeks was seen maximum with methotrexate. Compliance was comparatively good with methotrexate than topical. Though mean PASI reduction and compliance was good, relapse rates were higher with methotrexate in our study.</p><p class="abstract"><strong>Conclusions:</strong> There was no significant change in clinico-epidemiology and presentation of palmoplantar psoriasis. Methotrexate was observed to be the more efficacious modality in treating palmoplantar psoriasis.</p>

scholarly journals Single penile incision for combined hypospadias and inguinal surgery: A comparative study

2017 ◽  
Vol 11 (5) ◽  
pp. 192
Author(s):  
Michael E. Chua ◽  
Naif Alqarni ◽  
Jessica M. Ming ◽  
Fahad Alyami ◽  
Joana Dos Santos ◽  
...  
Keyword(s):  
Surgical Outcomes ◽  
Operative Time ◽  
Conventional Approach ◽  
Fisher Exact Test ◽  
Hypospadias Repair ◽  
Exact Test ◽  
Group A ◽  
Baseline Characteristics ◽  
Group B ◽  
Inguinal Surgery

Introduction: We sought to compare the surgical outcomes of hypospadias repair with correction of inguinal pathology using a single penile incision vs. conventional approach using two incisions.Methods: This is a retrospective study that reviewed all patients who underwent concurrent surgical repair for both hypospadias and inguinal pathologies between January 2003 and November 2015. Patients were classified into Group A, conventional (inguinal or scrotal and penile incision) approach; or Group B, single penile incision approach. Baseline characteristics, including age, degree of hypospadias, type and laterality of inguinal pathology, operative time, and surgical outcomes, were collected. Between groups, variable comparisons were analyzed using Mann-Whitney U-Test and Fisher-exact test. Statistical significant set at <0.05.Results: Seventy-six patients (Group A: 40; Group B: 36) were eligible for study. Baseline characteristics of both groups were comparable, with no significant statistical difference. Overall meanoperative time for Group A was 139.3 ± 56.2 minutes, while Group B was 107.8 ± 46.7 minutes (Z=2.6; U=470.5; p=0.009). Two patients in Group A and two patients in Group B had testicularascension, all of which also had hypospadias-related complications (p=1.0). Hypospadias-related complications in Group A included seven urethrocutaneous fistulae and two repair dehiscence. Eighturethrocutaneous fistulae, one urethral stricture, and two repair dehiscence occurred in Group B (p=0.448). Surgical outcome appearance in both groups were comparable, with no statisticallysignificant difference (p=0.466).Conclusions: Single penile incision for both hypospadias repair and correction of inguinal pathology is a feasible technique and comparable to the conventional approach, with similar surgical outcomes and shorter overall operative time.

scholarly journals The Clinical Outcome in Patients with Peritoneal Metastasis

2020 ◽  
pp. 1-3
Author(s):  
Spiliotis J ◽  
◽  
Farmakis D ◽  
Raptis A ◽  
Kopanakis N ◽  
...  
Keyword(s):  
Systemic Chemotherapy ◽  
Treatment Options ◽  
Survival Rates ◽  
Peritoneal Metastases ◽  
Mortality And Morbidity ◽  
Chemotherapy Group ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
Group D

Cytroreductive surgery (CRS) and HIPEC are controversial effective treatment options for selected patients with peritoneal metastases. We retrospectively examined 4.500 patients with peritoneal metastases from different tumors from 2005 to 2020. Patients were divided in 4 groups, surgery plus HIPEC and then systemic chemotherapy: Group A n=730, Group B n=700, R0 surgery plus systemic chemotherapy, Group C n=870, palliative surgery plus systemic chemotherapy and Group D n=2.200, palliative care and best support. The postoperative outcomes, morbidity, mortality were compared between the 4 groups. The mean survival rates Group A=24,4+10,2m, Group B= 18,4+6,3m, Group C=12,3+5,7m, Group D=5,8+2,3m (p<0.05 between Gr A vr Gr B). There was no statistically significant difference in the 30-day mortality and morbidity. In conclusion CRS + HIPEC are feasible in 16% of our patients with peritoneal metastases and are associated with pro-longed survival.

Suboccipital and cervical chordomas: the value of aggressive treatment at first presentation of the disease

2002 ◽  
Vol 97 (5) ◽  
pp. 1070-1077 ◽  
Author(s):  
Alexandre Carpentier ◽  
Marc Polivka ◽  
Alexandre Blanquet ◽  
Guillaume Lot ◽  
Bernard George
Keyword(s):  
Clinical Symptoms ◽  
Rank Test ◽  
Aggressive Treatment ◽  
Actuarial Survival ◽  
High Tendency ◽  
Content Type ◽  
Log Rank Test ◽  
Group A ◽  
Group B ◽  
Fine Print

Object. Chordoma is a locally invasive tumor with a high tendency for recurrence for which radical resection is generally recommended. To assess the benefits of aggressive treatment of chordomas, the authors compared results in patients treated aggressively at the first presentation of this disease with results in patients who were similarly treated, but after recurrence. Methods. Among 36 patients with cervical chordomas who were treated at the authors' institution, 22 underwent primary aggressive treatment (Group A) and 14 were treated secondarily after tumor recurrence (Group B). Two cases were excluded from Group A because of unrelated early deaths and three from Group B because of insufficient pre- or postoperative data. Most tumors were located at the suboccipital level and only eight cases at a level below C-2. Radiotherapy and proton therapy were similarly conducted in both groups of patients. The actuarial survival rates were 80 and 65% at 5 and 10 years, respectively, in Group A patients and 50 and 0% at 5 and 10 years, respectively, in Group B patients (p = 0.049, log-rank test). The actuarial recurrence-free rates were 70 and 35% at 5 and 10 years, respectively, in Group A and 0% at 3 years in Group B (p < 0.0001, log-rank test). The numbers of recurrences per year were 0.15 in Group A and 0.62 in Group B (p > 0.05). All other parameters that were analyzed (patient age, delay before diagnosis, clinical symptoms, chondroid type of lesion, and histological features) did not prove to influence prognosis in a statistically significant manner. Conclusions. Aggressive therapy, combining as radical a resection as possible with radiotherapy, seems to improve the prognoses of suboccipital and cervical chordomas when applied at the patient's first presentation with the disease.

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