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ANZ Journal of Surgery Mar 2022Gender dysphoria is defined as discomfort or distress that is caused by a discrepancy between a person's gender identity and that person's sex assigned at birth. The... (Review)
Review
BACKGROUND
Gender dysphoria is defined as discomfort or distress that is caused by a discrepancy between a person's gender identity and that person's sex assigned at birth. The main objective of this study was to review the application, efficacy and outcomes of a novel surgical technique, peritoneal pull-through technique vaginoplasty, in gender-affirming surgery. Specific outcome parameters include (1) healing time (2) depth of cavity achieved (3) alleviation of dysphoria (4) morbidity of the surgery.
METHODS
This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and PROSPERO registration obtained prior to commencement (PROSPERO CRD42020206736). A search was performed in OVID MEDLINE, EMBASE, Willey Online Library and PubMed. Specialty-related journals, grey literature and reference lists of relevant articles were manually searched.
RESULTS
From 476 potentially relevant articles, 12 articles were analysed. The publications were all level 4 or level 5 evidence. Healing times were poorly reported or often not mentioned. Eight authors reported neovagina cavity depth of at least 13 cm and good patient satisfaction. Alleviation of dysphoria was not discussed by any of the publications and only six reported complications. Average follow up reported ranged from 6 weeks to 14.8 months.
CONCLUSION
The application of peritoneal pull-through vaginoplasty in gender-affirming surgery is promising and novel. However, there is a paucity of data. Further research and longer-term data are required to assess the efficacy and safety of this technique. Patients seeking this surgery overseas should be informed of the potential difficulties they may face.
Topics: Female; Gender Identity; Gynecologic Surgical Procedures; Humans; Infant, Newborn; Male; Patient Satisfaction; Peritoneum; Sex Reassignment Surgery; Vagina
PubMed: 34427039
DOI: 10.1111/ans.17147 -
Colorectal Disease : the Official... Nov 2021Proactive detection and treatment strategies have achieved encouraging survival outcomes for patients with early peritoneal metastases (PM), but these costly and... (Meta-Analysis)
Meta-Analysis Review
AIM
Proactive detection and treatment strategies have achieved encouraging survival outcomes for patients with early peritoneal metastases (PM), but these costly and invasive approaches can only be applied to selected high-risk patients. This meta-analysis aimed to identify the risk factors for metachronous PM after curative surgery for colorectal cancer (CRC).
METHOD
The study was registered at PROSPERO (CRD42020219187). Databases were searched for studies comparing clinical and histopathological characteristics between patients with metachronous peritoneal metastases from colorectal cancer (pmCRC) and patients without (non-pmCRC).
RESULTS
Thirty-six studies were included. Metachronous PM were positively associated with perforation (OR 1.920; 95% CI 1.144-3.223; P = 0.014), poor differentiation (OR 2.291; 1.603-3.275; P < 0.001), T4 (OR 2.897; 1.248-6.726; P = 0.013), N1-2 (OR 3.429; 2.684-4.381; P < 0.001), mucinous adenocarcinoma (OR 4.175; 1.798-9.692; P = 0.001), obstruction (OR 4.467; 1.919-10.398; P = 0.001), synchronous ovarian metastases (OR 5.005; 1.140-21.977; P = 0.033), positive peritoneal carcinoembryonic antigen mRNA (OR 9.472; 3.643-24.631; P < 0.001), elevated serum carcinoembryonic antigen (preoperative group, OR 3.545, 1.486-8.459, P = 0.004; postoperative group, OR 13.673, 2.222-84.129, P = 0.005), elevated serum cancer antigen 19-9 (preoperative group, OR 5.281, 2.146-12.994, P < 0.001; postoperative group, OR 18.646, 6.429-54.083, P < 0.001) and positive peritoneal cytology (OR 25.884; 11.372-58.913; P < 0.001).
CONCLUSION
These evidence-based risk factors are conducive to designing early detection and proactive treatment strategies, enabling precision medicine.
Topics: Adenocarcinoma, Mucinous; Colorectal Neoplasms; Humans; Peritoneal Neoplasms; Peritoneum; Prognosis; Risk Factors
PubMed: 34411399
DOI: 10.1111/codi.15880 -
Colorectal Disease : the Official... Nov 2021Dissection with subsequent ligation and resection of arteries at their origin (central vascular ligation) is essential for adequate oncological resection during right... (Meta-Analysis)
Meta-Analysis Review
A systematic review and meta-analysis of variants of the branches of the superior mesenteric artery: the Achilles heel of right hemicolectomy with complete mesocolic excision?
AIM
Dissection with subsequent ligation and resection of arteries at their origin (central vascular ligation) is essential for adequate oncological resection during right hemicolectomy with complete mesocolic excision. This technique is technically demanding due to the highly variable arterial pattern of the right colon. Therefore, this study aims to provide a comprehensive evidence-based assessment of the arterial vascular anatomy of the right colon.
METHODS
A thorough systematic literature search through September 2020 was conducted on the electronic databases PubMed, Scopus and Web of Science to identify studies eligible for inclusion. Data were extracted and pooled into a meta-analysis using MetaXl software.
RESULTS
A total of 41 studies (n = 4691 patients) were included. The ileocolic artery (ICA), right colic artery (RCA) and middle colic artery (MCA) were present in 99.7% (95% CI 99.4%-99.8%), 72.6% (95% CI 61.3%-82.5%) and 96.9% (95% CI 94.2%-98.8%) respectively of patients. Supernumerary RCA and MCA were observed in 3.2% and 11.4% respectively of all cases. The RCA shared a common trunk with the ICA and MCA in 13.2% and 17.7% respectively of patients. A retro-superior mesenteric vein course of the ICA and RCA was observed in 55.1% and 11.4% respectively of all cases.
CONCLUSION
The vascular anatomy of the right colon displays several notable variations, namely the absence of some branches (RCA absent in 27.4% of cases), supernumerary branches, common trunks, and retro-superior mesenteric vein courses. These variations should be taken into consideration during right hemicolectomy with complete mesocolic excision to ensure adequate oncological resection while minimizing intra-operative complications.
Topics: Colectomy; Colonic Neoplasms; Humans; Laparoscopy; Mesenteric Artery, Superior; Mesocolon
PubMed: 34358401
DOI: 10.1111/codi.15861 -
Ultrasound in Obstetrics & Gynecology :... Nov 2021To evaluate the accuracy of transvaginal sonography (TVS) for detecting parametrial deep endometriosis, using laparoscopy as the reference standard. (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To evaluate the accuracy of transvaginal sonography (TVS) for detecting parametrial deep endometriosis, using laparoscopy as the reference standard.
METHODS
A search was performed in PubMed/MEDLINE and Web of Science for studies evaluating TVS for detecting parametrial involvement in women with suspected deep endometriosis, as compared with laparoscopy, from January 2000 to December 2020. The Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool was used to evaluate the quality of the studies. Pooled sensitivity, specificity and positive and negative likelihood ratios for TVS in the detection of parametrial deep endometriosis were calculated, and the post-test probability of parametrial deep endometriosis following a positive or negative test was determined.
RESULTS
The search identified 134 citations. Four studies, comprising 560 patients, were included in the analysis. The mean prevalence of parametrial deep endometriosis at surgery was 18%. Overall, the pooled estimated sensitivity, specificity and positive and negative likelihood ratios of TVS in the detection of parametrial deep endometriosis were 31% (95% CI, 10-64%), 98% (95% CI, 95-99%), 18.5 (95% CI, 8.8-38.9) and 0.70 (95% CI, 0.46-1.06), respectively. The diagnostic odds ratio was 26 (95% CI, 10-68). Heterogeneity was high. Visualization of a lesion suspected to be parametrial deep endometriosis on TVS increased significantly the post-test probability of parametrial deep endometriosis.
CONCLUSION
TVS has high specificity but low sensitivity for the detection of parametrial deep endometriosis. © 2021 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Topics: Adult; Endometriosis; Female; Humans; Peritoneum; Predictive Value of Tests; Prevalence; Sensitivity and Specificity; Ultrasonography; Vagina
PubMed: 34358386
DOI: 10.1002/uog.23754 -
Pleura and Peritoneum Mar 2021Malignant pleural effusion (MPE) is a common condition that presents with progressive breathlessness. Long term solutions are often required due to recurrence of... (Review)
Review
Malignant pleural effusion (MPE) is a common condition that presents with progressive breathlessness. Long term solutions are often required due to recurrence of effusion after simple drainage. Pleurodesis is one of the main options resorted to for long term control of MPE. There is data to suggest there may be a survival benefit for patients with MPE who achieve successful pleurodesis. A systematic review was carried out to explore this correlation and results suggest that there could be a survival difference according to pleurodesis outcome in patients with MPE. Fifteen studies (reported in 13 papers) were included; 13 (86.6%) of the studies showed survival difference in favour of pleurodesis success. The median [interquartile range] difference in survival between the two groups among the different studies was five [3.5-5.8] months. Most of the included studies suffered moderate to severe risk of bias and, thus, large prospective studies of patients undergoing pleurodesis are required to ascertain this effect.
PubMed: 34222645
DOI: 10.1515/pp-2020-0147 -
Techniques in Coloproctology Sep 2021The impact of transanal local excision (TAE) of early rectal cancer (ERC) on subsequent completion rectal resection (CRR) for unfavorable histology or margin involvement... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
The impact of transanal local excision (TAE) of early rectal cancer (ERC) on subsequent completion rectal resection (CRR) for unfavorable histology or margin involvement is unclear. The aim of this study was to provide a comprehensive review of the literature on the impact of TAE on CRR in patients without neoadjuvant chemoradiotherapy (CRT).
METHODS
We performed a systematic review of the literature up to March 2020. Medline and Cochrane libraries were searched for studies reporting outcomes of CRR after TAE for ERC. We excluded patients who had neoadjuvant CRT and endoscopic local excision. Surgical, functional, pathological and oncological outcomes were assessed. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed.
RESULTS
Sixteen studies involving 353 patients were included. Pathology following TAE was as follows T0 = 2 (0.5%); T1 = 154 (44.7%); T2 = 142 (41.2%); T3 = 43 (12.5%); Tx = 3 (0.8%); T not reported = 9. Fifty-three percent were > T1. Abdominoperineal resection (APR) was performed in 80 (23.2%) patients. Postoperative major morbidity and mortality occurred in 22 (11.4%) and 3 (1.1%), patients, respectively. An incomplete mesorectal fascia resulting in defects of the mesorectum was reported in 30 (24.6%) cases. Thirteen (12%) patients developed recurrence: 8 (3.1%) local, 19 (7.3%) distant, 4 (1.5%) local and distant. The 5-year cancer-specific survival was 92%. Only 1 study assessed anal function reporting no continence disorders in 11 patients. In the meta-analysis, CRR after TAE showed an increased APR rate (OR 5.25; 95% CI 1.27-21.8; p 0.020) and incomplete mesorectum rate (OR 3.48; 95% CI 1.32-9.19; p 0.010) compared to primary total mesorectal excision (TME). Two case matched studies reported no difference in recurrence rate and disease free survival respectively.
CONCLUSIONS
The data are incomplete and of low quality. There was a tendency towards an increased risk of APR and poor specimen quality. It is necessary to improve the accuracy of preoperative staging of malignant rectal tumors in patients scheduled for TAE.
Topics: Humans; Mesocolon; Neoadjuvant Therapy; Neoplasm Recurrence, Local; Neoplasm Staging; Proctectomy; Rectal Neoplasms; Retrospective Studies; Treatment Outcome
PubMed: 34173121
DOI: 10.1007/s10151-020-02401-8 -
The Journal of Obstetrics and... Sep 2021To determine whether hysteroscopy (HSC) increases the risk of intraperitoneal dissemination in endometrial cancer patients. (Meta-Analysis)
Meta-Analysis Review
AIM
To determine whether hysteroscopy (HSC) increases the risk of intraperitoneal dissemination in endometrial cancer patients.
METHODS
We conducted a comprehensive review of multiple databases. Quality assessments of eligible studies were performed using the Newcastle-Ottawa and Jadad scales. Positive peritoneal cytology (PPC) as the outcome of interest was compared between endometrial cancer patients with and without HSC. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated as a measure of effects.
RESULTS
Three case-control studies and eight retrospective cohort studies included 3364 patients, of whom 1116 underwent preoperative HSC, which resulted in a significantly higher PPC rate (OR, 1.82; 95% CI, 1.31-2.54; p = 0.0004). I was 11%, and the heterogeneity was acceptable. The difference between the groups with stages I-II was statistically insignificant (OR, 1.50; 95% CI, 0.75-2.99; p = 0.25). When liquid was used as the uterine distension medium during HSC and the intrauterine pressure was controlled under 80 mmHg, the difference between the two groups was also insignificant (OR, 1.18; 95% CI, 0.50-2.79; p = 0.71). However, when the intrauterine pressure exceeded 80 mmHg, the difference between the two groups was statistically significant (OR, 2.18; 95% CI, 1.28-3.73; p = 0.004).
CONCLUSION
This meta-analysis indicates that preoperative HSC in patients with endometrial cancer may increase the risk of intraperitoneal dissemination of malignant cells, which may be associated with intrauterine pressure >80 mmHg but not with stages I-II. There is no reason to avoid HSC for the diagnosis of endometrial cancer, especially in early stages, but intrauterine pressure should possibly be controlled below 80 mmHg.
Topics: Endometrial Neoplasms; Endometrium; Female; Humans; Hysteroscopy; Peritoneum; Pregnancy; Retrospective Studies
PubMed: 34155733
DOI: 10.1111/jog.14897 -
The Cochrane Database of Systematic... Jun 2021There has been extensive debate in the surgical literature regarding the optimum surgical access approach to the infrarenal abdominal aorta during an operation to repair... (Meta-Analysis)
Meta-Analysis
BACKGROUND
There has been extensive debate in the surgical literature regarding the optimum surgical access approach to the infrarenal abdominal aorta during an operation to repair an abdominal aortic aneurysm. The published trials comparing retroperitoneal (RP) and transperitoneal (TP) aortic surgery show conflicting results. This is an update of the review first published in 2016.
OBJECTIVES
To assess the effectiveness and safety of the retroperitoneal versus transperitoneal approach for elective open abdominal aortic aneurysm repair on mortality, complications, hospital stay and blood loss.
SEARCH METHODS
The Cochrane Vascular Information Specialist searched the Cochrane Vascular Specialised Register, CENTRAL, MEDLINE, Embase and CINAHL databases and the World Health Organization International Clinical Trials Registry Platform and the ClinicalTrials.gov trials registers to 30 November 2020. The review authors searched the Chinese Biomedical Literature Database and handsearched reference lists of relevant articles to identify additional trials.
SELECTION CRITERIA
We included randomized controlled trials (RCTs) that assessed the RP approach versus the TP approach for elective open abdominal aortic aneurysm (AAA) repair. There were no restrictions on language or publication status.
DATA COLLECTION AND ANALYSIS
Two review authors independently extracted data from the included trials. We resolved any disagreements through discussion with a third review author. Two review authors independently assessed the risk of bias in included trials with the Cochrane risk of bias tool. For dichotomous outcomes, we calculated the odds ratio (OR) with the corresponding 95% confidence interval (CI). For continuous data, we calculated a pooled estimate of treatment effect by calculating the mean difference (MD) and standard deviation (SD) with corresponding 95% CIs. We pooled data using a fixed-effect model, unless we identified heterogeneity, in which case we used a random-effects model. We used GRADE to assess the overall certainty of the evidence. We evaluated the outcomes of mortality, complications, intensive care unit (ICU) stay, hospital stay, blood loss, aortic cross-clamp time and operating time.
MAIN RESULTS
We identified no new studies from the updated searches. After reassessment, we included one study which had previously been excluded. Five RCTs with a combined total of 152 participants are included. The overall certainty of the evidence ranged from low to very low because of the low methodological quality of the included trials (unclear random sequence generation method and allocation concealment, and no blinding of outcome assessors), small sample sizes, small number of events, high heterogeneity and inconsistency between the included trials, no power calculations and relatively short follow-up. There was no evidence of a difference between the RP approach and the TP approach regarding mortality (odds ratio (OR) 0.32, 95% CI 0.01 to 8.25; 3 studies, 110 participants; very low-certainty evidence). Similarly, there was no evidence of a difference in complications such as hematoma (OR 0.90, 95% CI 0.13 to 6.48; 2 studies, 75 participants; very low-certainty evidence), abdominal wall hernia (OR 10.76, 95% CI 0.55 to 211.78; 1 study, 48 participants; very low-certainty evidence), or chronic wound pain (OR 2.20, 95% CI 0.36 to 13.34; 1 study, 48 participants; very low-certainty evidence) between the RP and TP approaches in participants undergoing elective open AAA repair. The RP approach may reduce ICU stay (mean difference (MD) -19.02 hours, 95% CI -30.83 to -7.21; 3 studies, 106 participants; low-certainty evidence); hospital stay (MD -3.30 days, 95% CI -4.85 to-1.75; 5 studies, 152 participants; low-certainty evidence); and blood loss (MD -504.87 mL, 95% CI -779.19 to -230.56; 4 studies, 129 participants; very low-certainty evidence). There was no evidence of a difference between the RP approach and the TP approach regarding aortic cross-clamp time (MD 0.69 min, 95% CI -7.23 to 8.60; 4 studies, 129 participants; very low-certainty evidence) or operating time (MD -15.94 min, 95% CI -34.76 to 2.88; 4 studies, 129 participants; very low-certainty evidence).
AUTHORS' CONCLUSIONS
Very low-certainty evidence from five small RCTs showed no clear evidence of a difference between the RP approach and the TP approach for elective open AAA repair in terms of mortality, or for rates of complications including hematoma (very low-certainty evidence), abdominal wall hernia (very low-certainty evidence), or chronic wound pain (very low-certainty evidence). However, a shorter intensive care unit (ICU) stay and shorter hospital stay was probably indicated following the RP approach compared to the TP approach (both low-certainty evidence). A possible reduction in blood loss was also shown after the RP approach (very low-certainty evidence). There is no clear difference between the RP approach and TP approach in aortic cross-clamp time or operating time. Further well-designed, large-scale RCTs assessing the RP approach versus TP approach for elective open AAA repair are required.
Topics: Aortic Aneurysm, Abdominal; Bias; Blood Loss, Surgical; Elective Surgical Procedures; Hematoma; Humans; Length of Stay; Operative Time; Pain, Postoperative; Peritoneum; Postoperative Complications; Randomized Controlled Trials as Topic; Retroperitoneal Space
PubMed: 34152003
DOI: 10.1002/14651858.CD010373.pub3 -
Techniques in Coloproctology Oct 2021The introduction of complete mesocolic excision (CME) for right colon cancer has raised an important discussion in relation to the extent of colic and mesenteric... (Meta-Analysis)
Meta-Analysis Review
Right hemicolectomy with complete mesocolic excision is safe, leads to an increased lymph node yield and to increased survival: results of a systematic review and meta-analysis.
BACKGROUND
The introduction of complete mesocolic excision (CME) for right colon cancer has raised an important discussion in relation to the extent of colic and mesenteric resection, and the impact this may have on lymph node yield. As uncertainty remains regarding the usefulness of and indications for right hemicolectomy with CME and the benefits of CME compared with a traditional approach, the purpose of this meta-analysis is to compare the two procedures in terms of safety, lymph node yield and oncological outcome.
METHODS
We performed a systematic review of the literature from 2009 up to March 15th, 2020 according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Two hundred eighty-one publications were evaluated, and 17 met the inclusion criteria and were included. Primary endpoints analysed were anastomotic leak rate, blood loss, number of harvested lymph nodes, 3- and 5-year oncologic outcomes. Secondary outcomes were operating time, conversion, intraoperative complications, reoperation rate, overall and Clavien-Dindo grade 3-4 postoperative complications.
RESULTS
In terms of safety, right hemicolectomy with CME is not inferior to the standard procedure when comparing rates of anastomotic leak (RR 0.82, 95% CI 0.38-1.79), blood loss (MD -32.48, 95% CI -98.54 to -33.58), overall postoperative complications (RR 0.82, 95% CI 0.67-1.00), Clavien-Dindo grade III-IV postoperative complications (RR 1.36, 95% CI 0.82-2.28) and reoperation rate (RR 0.65, 95% CI 0.26-1.75). Traditional surgery is associated with a shorter operating time (MD 16.43, 95% CI 4.27-28.60) and lower conversion from laparoscopic to open approach (RR 1.72, 95% CI 1.00-2.96). In terms of oncologic outcomes, right hemicolectomy with CME leads to a higher lymph node yield than traditional surgery (MD 7.05, 95% CI 4.06-10.04). Results of statistical analysis comparing 3-year overall survival and 5-year disease-free survival were better in the CME group, RR 0.42, 95% CI 0.27-0.66 and RR 0.36, 95% CI 0.17-0.56, respectively.
CONCLUSIONS
Right hemicolectomy with CME is not inferior to traditional surgery in terms of safety and has a greater lymph node yield when compared with traditional surgery. Moreover, right-sided CME is associated with better overall and disease-free survival.
Topics: Colectomy; Colonic Neoplasms; Humans; Laparoscopy; Lymph Node Excision; Lymph Nodes; Mesocolon; Treatment Outcome
PubMed: 34120270
DOI: 10.1007/s10151-021-02471-2 -
Annals of Surgical Oncology Dec 2021Previous systematic reviews suggest that the implementation of 'complete mesocolon excision' (CME) for colon tumors entails better specimen quality but with limited... (Meta-Analysis)
Meta-Analysis Review
BACKGROUNDS
Previous systematic reviews suggest that the implementation of 'complete mesocolon excision' (CME) for colon tumors entails better specimen quality but with limited long-term outcomes. We performed a meta-analysis to compare the pathological, perioperative, and oncological results of CME with conventional surgery (CS) in primary colon cancer.
METHODS
Embase, MEDLINE and CENTRAL databases were searched using Medical Subject Headings for CME and D3 lymphadenectomy. The systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
RESULTS
A total of 18,989 patients from 27 studies were included. Postoperative complications were higher in the CME group (relative risk [RR] 1.13, 95% confidence interval [CI] 1.04-1.22, I = 0%), while no differences were observed in terms of anastomotic leak (I = 0%) or perioperative mortality (I = 49%). CME was associated with a higher number of lymph nodes harvested (I = 95%), distance to high tie (I = 65%), bowel length (I = 0%), and mesentery area (I = 95%). CME also had positive effects on 3- and 5-year overall survival (RR 1.09, 95% CI 1.04-1.15, I = 88%; and RR 1.05, 95% CI 1.02-1.08, I = 62%, respectively) and 3-year disease-free survival (RR 1.10, 95% CI 1.04-1.17, I = 22%), as well as decreased local (RR 0.35, 95% CI 0.24-0.51, I = 51%) and distant recurrences (RR 0.71, 95% CI 0.60-0.85, I = 34%).
CONCLUSIONS
Limited evidence suggests that CME improves oncological outcomes with a higher postoperative adverse events rate but no increase in anastomotic leak rate or perioperative mortality, compared with CS.
Topics: Colectomy; Colonic Neoplasms; Humans; Laparoscopy; Lymph Node Excision; Mesocolon; Neoplasm Recurrence, Local; Treatment Outcome
PubMed: 34089109
DOI: 10.1245/s10434-021-10186-9