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Cancers Jul 2023Risk prediction models for cancer stage at diagnosis may identify individuals at higher risk of late-stage cancer diagnoses. Partial proportional odds risk prediction...
Risk prediction models for cancer stage at diagnosis may identify individuals at higher risk of late-stage cancer diagnoses. Partial proportional odds risk prediction models for cancer stage at diagnosis for males and females were developed using data from Alberta's Tomorrow Project (ATP). Prediction models were validated on the British Columbia Generations Project (BCGP) cohort using discrimination and calibration measures. Among ATP males, older age at diagnosis was associated with an earlier stage at diagnosis, while full- or part-time employment, prostate-specific antigen testing, and former/current smoking were associated with a later stage at diagnosis. Among ATP females, mammogram and sigmoidoscopy or colonoscopy were associated with an earlier stage at diagnosis, while older age at diagnosis, number of pregnancies, and hysterectomy were associated with a later stage at diagnosis. On external validation, discrimination results were poor for both males and females while calibration results indicated that the models did not over- or under-fit to derivation data or over- or under-predict risk. Multiple factors associated with cancer stage at diagnosis were identified among ATP participants. While the prediction model calibration was acceptable, discrimination was poor when applied to BCGP data. Updating our models with additional predictors may help improve predictive performance.
PubMed: 37509208
DOI: 10.3390/cancers15143545 -
Journal of Robotic Surgery Jun 2023As robotic-assisted surgery (RAS) expands to smaller centres, platforms are shared between specialities. Healthcare providers must consider case volume and mix required...
As robotic-assisted surgery (RAS) expands to smaller centres, platforms are shared between specialities. Healthcare providers must consider case volume and mix required to maintain quality and cost-effectiveness. This can be informed, in-part, by the volume-outcome relationship. We perform a systematic review to describe the volume-outcome relationship in intra-abdominal robotic-assisted surgery to report on suggested minimum volumes standards. A literature search of Medline, NICE Evidence Search, Health Technology Assessment Database and Cochrane Library using the terms: "robot*", "surgery", "volume" and "outcome" was performed. The included procedures were gynecological: hysterectomy, urological: partial and radical nephrectomy, cystectomy, prostatectomy, and general surgical: colectomy, esophagectomy. Hospital and surgeon volume measures and all reported outcomes were analysed. 41 studies, including 983,149 procedures, met the inclusion criteria. Study quality was assessed using the Newcastle-Ottawa Quality Assessment Scale and the retrieved data was synthesised in a narrative review. Significant volume-outcome relationships were described in relation to key outcome measures, including operative time, complications, positive margins, lymph node yield and cost. Annual surgeon and hospital volume thresholds were described. We concluded that in centres with an annual volume of fewer than 10 cases of a given procedure, having multiple surgeons performing these procedures led to worse outcomes and, therefore, opportunities should be sought to perform other complimentary robotic procedures or undertake joint cases.
Topics: Male; Humans; Robotic Surgical Procedures; Robotics; Prostatectomy; Outcome Assessment, Health Care; Hospitals
PubMed: 36315379
DOI: 10.1007/s11701-022-01461-2 -
Gynecologic Oncology Reports Apr 2022•Extensive ureterolysis due to the lateral extent of the tumor with postoperative ureteral stenting.•Partial urinary bladder cystectomy due to clinical concern for...
•Extensive ureterolysis due to the lateral extent of the tumor with postoperative ureteral stenting.•Partial urinary bladder cystectomy due to clinical concern for invasion followed by two-layer cystorrhapy.•'Port-hopping' for development of the bilateral tunnels of Wertheim with the Vessel Sealer Extend.
PubMed: 35372655
DOI: 10.1016/j.gore.2022.100959 -
Gynecologic and Obstetric Investigation 2022The objective of this study was to explore a better adjuvant treatment for patients with high-grade (HG) neuroendocrine cervical carcinomas (NECC) who had undergone...
OBJECTIVES
The objective of this study was to explore a better adjuvant treatment for patients with high-grade (HG) neuroendocrine cervical carcinomas (NECC) who had undergone surgery as a primary treatment.
DESIGN
A retrospective cohort study, which involved women diagnosed as HG-NECC, was conducted in the Obstetrics and Gynecology Hospital of Fudan University. All patients had undergone radical surgery and pelvic lymphadenectomy with a laparotomy or a minimally invasive surgery. An analysis was made of the prognosis of HG-NECC.
METHODS
Overall survival (OS) and progression-free survival (PFS) curves were drawn using the Kaplan-Meier method to be compared via log-rank tests. A Cox proportional hazards model was used to estimate the independent prognostic factors.
RESULTS
A number of 110 patients diagnosed as HG-NECC at the pathological stage IA2 to IIIC2 according to the International Federation of Gynecology and Obstetrics (FIGO) 2018 staging system were initially treated with a primary surgery between 2008 and 2020. The eligible patients had the median age of 42.5 years (range: 22-76), with the median follow-up period of 39.6 months (range: 1.0-156.6). The 5-year OS of the patients at pathological stage I, II, and III accounted for 84.9%, 85.7%, and 60.9%, respectively. The Kaplan-Meier survival curves revealed no significant differences in OS and PFS between postoperative chemoradiotherapy and chemotherapy alone (OS: p = 0.77; PFS: p = 0.41). Etoposide plus platinum therapy did not improve OS when compared with platinum plus paclitaxel therapy after surgery (p = 0.71). The univariable analysis showed that chemotherapy with cycles ≥4 presented a better prognosis than with cycles <4 (OS: p = 0.01; HR = 6.71; PFS: p = 0.02; HR = 5.18). The multivariate analysis indicated that the cycles of chemotherapy (p = 0.02; HR 0.29) were a prognostic factor for PFS.
LIMITATIONS
A retrospective design and the absence of partial follow-up data are limitations of the study.
CONCLUSIONS
In initially surgically treated HG-NECC, postoperative chemotherapy alone showed no inferiority when compared with chemoradiotherapy for HG-NECC, and 4+ cycles of chemotherapy tended to produce a better prognosis than 4-ones.
Topics: Pregnancy; Female; Humans; Young Adult; Adult; Middle Aged; Aged; Cervix Uteri; Retrospective Studies; Neoplasm Staging; Platinum; Hysterectomy; Prognosis; Carcinoma, Neuroendocrine; Uterine Cervical Neoplasms; Chemotherapy, Adjuvant
PubMed: 36273460
DOI: 10.1159/000527661 -
Journal of Taibah University Medical... Jun 2022Sarcomas arising from the cervix are rare, and the reported prevalence is 0.20-0.55%. A 15-year-old Para 0 secondary school student presented to the emergency department...
Sarcomas arising from the cervix are rare, and the reported prevalence is 0.20-0.55%. A 15-year-old Para 0 secondary school student presented to the emergency department in shock with a 1-year history of painless vaginal protrusion, vaginal bleeding, foul-smelling vaginal discharge, occasional passage of blood clots, fatigue, fainting episodes, and weight loss. She was resuscitated with intravenous fluids and blood transfusions. General examination revealed a young girl with a 16-week sized abdominal mass. Vaginal examination revealed a large mobile fleshy mass 14 cm by 10 cm with an offensive discharge and odour. It was externally friable, bled actively on contact, had areas of tissue necrosis, and was oedematous. It was difficult to determine the adnexa structures because of tenderness. Examination under anaesthesia showed that the mass was continuous with the cervix and was not attached to the vagina or vulva. The histology report of the biopsied specimens showed features consistent with cervical leiomyosarcoma (LMS). Cervical LMS was confirmed by immunohistochemistry and a total abdominal hysterectomy and bilateral salpingo-oophorectomy were performed as definitive treatment. Postoperative hormone replacement therapy was initiated. The patient's postoperative condition was stable and there was no tumour recurrence for >2 years on follow-up. Making a diagnosis and instituting surgical and adjuvant treatments for LMS in a low-resource setting are challenging. This is due to lack of access to universal healthcare coverage. A multidisciplinary approach with early diagnosis and complete surgical resection of the tumour provides the most favourable possibility of an improved survival and quality of life.
PubMed: 35722227
DOI: 10.1016/j.jtumed.2021.10.007 -
Cancer Management and Research 2020We aimed to evaluate the long-term survival outcomes of concurrent chemoradiotherapy (CCRT) combined with nimotuzumab followed by surgery in patients with locally...
Long-Term Results of Concurrent Chemoradiotherapy Combined with Anti-EGFR Monoclonal Antibody Prior to Surgery in Locally Advanced Cervical Cancer: A Single-Institute Prospective Study.
PURPOSE
We aimed to evaluate the long-term survival outcomes of concurrent chemoradiotherapy (CCRT) combined with nimotuzumab followed by surgery in patients with locally advanced cervical cancer (LACC).
PATIENTS AND METHODS
Patients received whole pelvic intensity-modulated radiation therapy (IMRT) and concomitantly with weekly cisplatin (40 mg/m) or nedaplatin (30 mg/m) and weekly nimotuzumab (200 mg). After assessment of the treatment response, patients then underwent radical surgery.
RESULTS
Between June 2013 and July 2016, 33 patients with FIGO IB2-IIIB cervical cancer were recruited. Clinical complete response and partial response were observed in 8 (24.3%) and 23 patients (69.7%), respectively. Twenty-seven patients (81.8%) were successfully treated with radical hysterectomy and pelvic lymphadenectomy: 9 (33.3%) showed pathological complete response; 10 (37.1%) showed partial response and 8 (29.6%) presented with persistent macroscopic/microscopic residual carcinoma. For the intention-to-treat population, the median follow-up time was 53.7 months. Locoregional recurrence and distant metastases were observed in three and seven patients, respectively. The 5-year overall survival, progression-free survival, locoregional recurrence-free survival, and distant metastasis-free survival were 81.5%, 72.7%, 90.9%, and 78.3%, respectively. Both acute and late toxicities were manageable and mainly limited to grade 1 or 2.
CONCLUSION
Concurrent chemoradiotherapy combined with nimotuzumab followed by surgery for patients with LACC is safe and results in excellent long-term treatment outcomes. Further randomized controlled studies are warranted to confirm the findings.
PubMed: 33293859
DOI: 10.2147/CMAR.S282372 -
PloS One 2021Autonomic neurons innervating uterine horn is probably the only nerve cell population capable of periodical physiological degeneration and regeneration. One of the main...
Autonomic neurons innervating uterine horn is probably the only nerve cell population capable of periodical physiological degeneration and regeneration. One of the main sources of innervation of the uterus is paracervical ganglion (PCG). PCG is a unique structure of the autonomic nervous system. It contains components of both the sympathetic and parasympathetic nervous system. The present study examines the response of neurons of PCG innervating uterine horn to axotomy caused by partial hysterectomy in the domestic pig animal model. The study was performed using a neuronal retrograde tracing and double immunofluorescent staining for tyrosine hydroxylase (TH), dopamine beta-hydroxylase (DβH), choline acetyltransferase (ChAT), vesicular acetylcholine transporter (VAChT), neuronal nictric oxide synthase (nNOS), galanin, neuropeptide Y (NPY), vasoactive intestinal peptide (VIP), pituitary adenylate cyclase-activating peptide (PACAP), somatostatin and substance P (SP). Our study showed that virtually all neurons of the porcine PCG innervating uterine horn are adrenergic and we did not confirm that PCG is the source of cholinergic fibers innervating uterine horn of the pig. After axotomy there was a decrease in expression of catecholamine-synthesizing enzymes (TH, DβH) and a strong increase in the galanin expression. The increase of the number of NPY-IR neurons in the ganglia after axotomy was observed. There were no changes in the expression of other studied substances in the PCG neurons innervating the uterine horn, what was often found in rodents studies. This indicates that neurons can respond to damage in a species-specific way.
Topics: Animals; Choline O-Acetyltransferase; Dopamine beta-Hydroxylase; Female; Ganglia, Spinal; Hysterectomy; Neurons; Nitric Oxide Synthase; Pituitary Adenylate Cyclase-Activating Polypeptide; Somatostatin; Substance P; Swine; Tyrosine 3-Monooxygenase; Uterus; Vasoactive Intestinal Peptide; Vesicular Acetylcholine Transport Proteins
PubMed: 33497400
DOI: 10.1371/journal.pone.0245974 -
Molecular and Clinical Oncology Sep 2020Vaginal intraepithelial neoplasia (VAIN) is a rare disease associated with human papillomavirus infection. High-grade VAIN is typically treated with either excisional or...
Vaginal intraepithelial neoplasia (VAIN) is a rare disease associated with human papillomavirus infection. High-grade VAIN is typically treated with either excisional or ablative therapy. However, recurrent VAIN lesions are common and these treatments cause vaginal scarring. Recent studies have indicated that 5% imiquimod is an effective treatment for VAIN. The present report describes a case of a woman diagnosed with recurrent VAIN 3 who was treated with a 5% topical imiquimod cream and achieved a complete response after excision and CO laser vaporization. A 53-year-old, gravida 5, para 2 postmenopausal woman who was diagnosed with papillary squamous cell carcinoma by biopsy underwent conization, total abdominal hysterectomy and bilateral salpingo-oophorectomy. A histological examination revealed grade 3 cervical intraepithelial neoplasia with free surgical margins. At 3 years after the hysterectomy, the vaginal smear revealed atypical squamous cells, leading to a pathological diagnosis of VAIN 3. Partial vaginectomy was performed, and VAIN 3 was detected in the lesion with positive margins. At 4 months into follow-up, the vaginal smear revealed a high-grade squamous intraepithelial lesion (HSIL), and subsequent biopsy during colposcopy revealed a pathological diagnosis of VAIN 3. At 3 months after CO laser vaporization, the vaginal smear revealed HSIL with suspected recurrence and imiquimod treatment was initiated. One sachet of 5% imiquimod cream (0.25 g) was placed in the entire vagina three times per week for 14 weeks with no apparent complications. At 3 years after the treatment, there has been no recurrence. This case demonstrated that topical imiquimod with careful follow-up is an effective treatment for VAIN and is well-tolerated. Further clinical evidence of the effectiveness and safety of imiquimod in patients diagnosed with VAIN is required.
PubMed: 32754333
DOI: 10.3892/mco.2020.2089 -
Annals of Transplantation Jun 2020BACKGROUND Minimally invasive surgery (MIS) has rapidly advanced, but its use in transplant patients has lagged. We share our experience of MIS for patients after kidney...
BACKGROUND Minimally invasive surgery (MIS) has rapidly advanced, but its use in transplant patients has lagged. We share our experience of MIS for patients after kidney and liver transplantation and compare our results with similar studies in the literature. MATERIAL AND METHODS This study included 14 MIS (12 laparoscopic, 2 transvaginal) procedures for 13 transplant cases (6 liver and 7 kidney) done from May 2006 to May 2018. Gastrointestinal surgery was performed in 6 cases: appendectomy performed 8 months after liver transplant and 16 months after kidney transplant in 2 cases, radical right hemi-colectomy performed 6 weeks after liver transplant in 1 case; exploration for chylous ascites 6 months after liver transplant in 1 case, sleeve gastrectomy performed 3 years after kidney transplant in 1 case, and partial hepatectomy performed 12 years after kidney transplant in 1 case. For urological problems, 2 patients received ipsilateral right-side nephroureterectomy performed 10 and 12 years after kidney transplant, and 1 patient received contralateral left-side nephroureterectomy performed 12 years after kidney transplant. The 2 liver transplant patients with huge incisional hernias received repair approximately 3 and 2 years after liver transplant. Three patients underwent gynecological surgery: 2 transvaginal for pelvic floor reconstruction in 1 patient with liver transplant and 1 hysterectomy in a kidney transplant patient, and 1 laparoscopic-assisted hysterectomy in a kidney transplant patient. We retrospectively analyzed the clinical presentation, operative findings, operation time, postoperative complications, and length of stay. RESULTS The postoperative course was uneventful, with early resumption of oral intake, including immunosuppressants administered the same as in the non-transplant patients. All surgical procedures in these transplant patients were achieved without conversion, showed stable kidney and liver function, had better surgical outcomes in comparison with traditional surgery, and most of them were discharged within 1 week. CONCLUSIONS Laparoscopic and non-laparoscopic MIS surgery are feasible and safe for abdominal organ transplant patients and are helpful for timely intervention in cases with acute abdomen. No adjustment of immunosuppressant is usually needed, as oral intake can be resumed very soon after surgery.
Topics: Adult; Female; Humans; Kidney Transplantation; Length of Stay; Liver Transplantation; Male; Middle Aged; Minimally Invasive Surgical Procedures; Postoperative Complications; Transplant Recipients; Treatment Outcome
PubMed: 32541640
DOI: 10.12659/AOT.922602 -
Gynecology and Minimally Invasive... 2022To safely perform minimally invasive hysterectomy (MIH), including laparoscopic hysterectomy and robot-assisted hysterectomy, partial ureterolysis, or visualizing only...
To safely perform minimally invasive hysterectomy (MIH), including laparoscopic hysterectomy and robot-assisted hysterectomy, partial ureterolysis, or visualizing only the ureter without dissection is often inadequate. Moreover, careless blunt dissection could injure the blood vessels. We present our surgical method for ureterolysis using sharp dissection during MIH. First, the outer portion of the ureter is dissected. Dissecting between the pelvic sidewall and the posterior leaf of the broad ligament creates a pararectal space outside the ureter, enabling the easy identification of the ureter running on the posterior leaf. Second, the inner portion of the ureter is dissected. After determining the location of the ureter, a better partial dissection of the ureter can be performed from the posterior leaf, instead of dissecting along the entire circumference. If fine surgery has to be performed, the ureter can be dissected by enclosing it within its sheath. We primarily perform dissections using a monopolar device, which allows a sharp dissection. Furthermore, in our method, we often include the dissection of the ureteral tunnel. It is important to understand the anatomy and membrane structure of the ureter in each patient and adjust the extent of ureterolysis based on individual differences.
PubMed: 36158285
DOI: 10.4103/gmit.gmit_129_21