Effect of body mass index on nonalcoholic fatty liver disease in patients undergoing minimally invasive bariatric surgery

The risk factors for nonalcoholic fatty liver disease in patients undergoing bariatric surgery are under study. We wanted to determine the correlation between nonalcoholic fatty liver disease and patient factors such as obesity and liver function tests. A retrospective analysis was performed on 177 nonalcoholic morbidly obese patients who underwent laparoscopic Roux-en-Y gastric bypass with liver biopsy, to identify risk factors for nonalcoholic fatty liver disease. The histologic grade of liver disease was compared with preoperative body mass index, age, and liver function tests. Simple steatosis and steatohepatitis were present in 90% and 42% of patients, respectively. Elevated transaminaselevels were an independent risk for liver disease. Body mass index and liver disease were not correlated with univariate analysis. Regression analysis performed on age, body mass index, and liver disease demonstrated that the risk for liver disease increased with body mass index in the younger (<35 years old) age group and decreased with body mass index in the older (<45 years old) age group. There was a high incidence of steatosis and steatohepatitis in these nonalcoholic bariatric patients, and elevated transaminase level was indicative of disease. Body mass index was a positive risk factor for liver disease in younger patients but a negative risk factor in the older patients. Presented at the Forty-Fifth Meeting of The Society for Surgery of the Alimentary Tract, New Orleans, Louisiana, May 15–19, 2004 (poster presentation).     

Cardiac surgery in patients with confirmed COVID-19 infection: Early experience

The novel coronavirus, now termed SARS-CoV-2, has caused a significant global impact in the space of 4 months. Almost all elective cardiac surgical operations have been postponed in order to reduce transmission and to allocate resources adequately. Urgent and emergency cardiac surgery is still taking place during the pandemic. The decision to operate in urgent patients with active/recent COVID-19 infection is difficult to make, particularly as it is still an unknown disease entity in the setting of emergent cardiac surgery. We present a case series of three patients who underwent urgent cardiac surgery and who have had recent or active COVID-19 infection.     

新型冠状病毒肺炎疫区普通外科防控措施及预案

中国人民解放军中部战区总医院是新型冠状病毒肺炎(coronavirus disease 2019,COVID-19)中心疫区的一所综合性医院,其普通外科需承担腹部外伤、恶性肿瘤及急腹症的治疗任务。根据国家卫生健康委员会制定的指南及医院相关管理规定,普通外科制定了科室防控COVID-19的措施及预案。2020年1月23日(武汉封城)至2020年2月29日期间,科室共救治46例病人,其中先后有2例病人疑似、1例病人确诊COVID-19,均得到了及时甄别和妥善处理,未引起工作人员、其他病人及陪护之间的交叉感染。其防控措施及预案有效地防止了COVID-19在普通外科的扩散,取得了较好的防控效果。     

In nonalcoholic fatty liver disease,Roux-en-Y gastric bypass improves liver histology while persistent disease is associated with lower improvements in waist circumference and glycemic control

Background

In obese individuals undergoing Roux-en-Y gastric bypass (RYGB), nonalcoholic fatty liver disease (NAFLD) is seen in 75% to 100% of cases. This improves postsurgery, but some patients continue to have persistent NAFLD.

胰十二指肠切除术后新发非酒精性脂肪性肝病的相关因素分析

目的探讨胰十二指肠切除术(PD)后患者新发非酒精性脂肪性肝病(NAFLD)的相关因素。方法回顾性收集2018年6月至2020年12月南京大学医学院附属鼓楼医院肝胆胰中心连续收治的130例接受PD的患者资料。男性74例, 女性56例, 年龄[M(IQR)]为62(16)岁(范围:22～84岁)。其中29例患者术后发生NAFLD, 设为NAFLD组;101例患者未发生NAFLD, 设为非NAFLD组。观察指标:(1)两组患者术前一般情况、术中与术后相关指标;(2)PD术后新发NAFLD的相关因素。分类资料的比较采用χ2检验或Fisher确切概率法, 定量资料的比较采用独立样本t检验或Mann-WhitneyU检验, 多因素分析采用逐步向前法的Logistic回归模型。结果 130例患者均成功完成PD, 术后6个月内NAFLD的发生率为22.3%(29/130)。单因素分析结果显示, 体重指数、糖尿病、术前甘油三酯水平、胰腺癌是发生NAFLD的相关因素(t=-2.655、χ2=4.563、U=-2.192、χ2=7.044, P值均<0.05)。多因素分析结果显示, 性别、体重指数、是...     

The metabolic and liver-related outcomes of bariatric surgery in adult patients with insulin-treated type 2 diabetes and nonalcoholic fatty liver disease at high risk of liver fibrosis

BackgroundNonalcoholic fatty liver disease (NAFLD) has become the most common cause of chronic liver disease, with a prevalence estimated to between 20% and 30% of the general population and approximately 70% of stage 2 obese people with type 2 diabetes (T2D) with normal liver enzymes.ObjectivesTo investigate the metabolic and liver-related outcomes of bariatric surgery among patients with insulin-treated T2D and NAFLD who are at high risk of liver fibrosis.SettingMore than 600 locations within the United Kingdom.MethodsThe study comprises a retrospective cohort comparison of patients with NAFLD and a fibrosis 4 (Fib-4) score > 1.45 who received a bariatric intervention versus comparable patients who received no bariatric intervention. Metabolic outcomes (glycated hemoglobin [HbA1C] level, weight, body mass index [BMI], and Fib-4 score) and composite liver-related outcomes (cirrhosis, portal hypertension, liver failure, and hepatoma) were compared between groups over a period of 5 years. The outcomes were adjusted for baseline and time-varying covariates.ResultsThe study sample included 4108 patients, 45 of whom underwent bariatric surgery. The mean age at baseline was 62.4 ± 12.4 years; 43.8% of patients were female; the mean weight was 89.5 ± 20.8 kg; the mean BMI was 31.7 ± 7.6 kg/m²; and the mean HbA1C level was 68.4 ± 16.7 mmol/mol. In addition, the median Fib-4 score was 2.3 (interquartile range, 1.7–4.2). During the 5 years during which follow-up outcomes were recorded, the weight and BMI reductions were significantly lowered compared with baseline in the bariatric surgery group. Similarly, the HbA1C levels were lower in the bariatric surgery group, with statistically significant differences observed in the first and second postintervention years (bariatric surgery versus non–bariatric surgery patient levels at 1 year, 63.1 mmol/mol versus 68.1 mmol/mol, respectively [P = .042], and at 2 years, 62.7 mmol/mol versus 68.1 mmol/mol, respectively [P = .028]). No significant difference was observed between groups in the proportion of patients with liver fibrosis or the likelihood of developing composite liver disease during the follow-up period (bariatric surgery group, 8.9%; non–bariatric surgery group, 4.7%; X² = 1.75; P = .18).ConclusionBariatric surgery amongst patients with insulin-treated T2D with NAFLD who were at high risk of liver fibrosis was associated with significant improvements in metabolic outcomes. No significant adverse effects were observed with regards to liver-related outcomes.     

Predicting risk of erectile dysfunction in patients with nonalcoholic fatty liver disease

Nonalcoholic fatty liver disease (NAFLD) is one of the risk factors for erectile dysfunction (ED). We aimed to predict the risk of ED in patients with NAFLD. The study included 146 male patients complaining impotence admitted to the urology outpatient clinic aged 24–80 years without a history of alcohol use who underwent abdominal ultrasonography between February 2018 and January 2019. 106 patients with NAFLD and 40 men without NAFLD were included in the study. Clinical and laboratory parameters, ED status according to International Index of Erectile Function-5 were compared between patients with and without NAFLD. The mean age of patients was 51.47 ± 10.34 years. NAFLD was detected in 72.6% of the patients. No statistically significant difference was found regarding mean age, BMI, IIEF-5 scores, DM status, serum glucose levels (p > .05). Fasting insulin levels, hypertension (HT), insulin resistance (IR) and ED status of the patients with NAFLD were significantly higher than patients without NAFLD (p < .05). NAFLD was found to be a significantly independent associated with ED. We also found that patients with NAFLD have risk of ED 2.92 times higher than without NAFLD (OR: 2.92). For the patients presenting with erectile dysfunction, hepatic steatosis should also be considered.     

Cardiac surgery considerations and lessons learned during the COVID-19 pandemic

The COVID-19 pandemic has transformed cardiac surgical practices. Limitations in intensive care resources and personal protective equipment have required many practices throughout the globe to pause elective operations and now slowly resume operations. However, much of cardiac surgery is not elective and patients continue to require surgery on an urgent or emergent basis during the pandemic. This continued need for providing surgical services has introduced several unique considerations ranging from how to prioritize surgery, how to ensure safety for cardiac surgical teams, and how best to resume elective operations to ensure the safety of patients. Additionally, the COVID-19 pandemic has required a careful analysis of how best to carry out heart transplantation, extra-corporeal membrane oxygenation, and congenital heart surgery. In this review, we present the many areas of multidisciplinary consideration, and the lessons learned that have allowed us to carry out cardiac surgery with excellence during the COVID-19 pandemic. As various states experience plateaus, declines, and rises in COVID-19 cases, these considerations are particularly important for cardiac surgical programs throughout the globe.     

Bariatric surgery in patients with previous COVID-19 infection

BackgroundThe process of reintroducing bariatric surgery to our communities in a COVID-19 environment was particular to each country. Furthermore, no clear recommendation was made for patients with a previous COVID-19 infection and a favorable outcome who were seeking bariatric surgery.ObjectivesTo analyze the risks of specific complications for patients with previous COVID-19 infection who were admitted for bariatric surgery.SettingEight high-volume private centers from 5 countries.MethodsAll patients with morbid obesity and previous COVID-19 infection admitted for bariatric surgery were included in the current study. Patients were enrolled from 8 centers and 5 countries, and their electronic health data were reviewed retrospectively. The primary outcome was to identify early (<30 d) specific complications related to COVID-19 infection following bariatric surgery, and the secondary outcome was to analyze additional factors from work-ups that could prevent complications.ResultsThirty-five patients with a mean age of 40 years (range, 21–68 yr) and a mean body mass index of 44.3 kg/m² (±7.4 kg/m²) with previous COVID-19 infection underwent different bariatric procedures: 23 cases of sleeve (65.7 %), 7 cases of bypass, and 5 other cases. The symptomatology of the previous COVID-19 infection varied: 15 patients had no symptoms, 12 had fever and respiratory signs, 5 had only fever, 2 had digestive symptoms, and 1 had isolated respiratory signs. Only 5 patients (14.2 %) were hospitalized for COVID-19 infection, for a mean period of 8.8 days (range, 6–15 d). One patient was admitted to an intensive care unit and needed invasive mechanical ventilation. The mean interval time from COVID-19 infection to bariatric surgery was 11.3 weeks (3–34 wk). The mean hospital stay was 1.7 days (±1 d), and all patients were clinically evaluated 1 month following the bariatric procedure. There were 2 readmissions and 1 case of complication: that case was of a gastric leak treated with laparoscopic drainage and a repeated pigtail drain, with a favorable outcome. No cases of other specific complications or mortality were recorded.ConclusionMinor and moderate COVID-19 infections, especially the forms not complicated with invasive mechanical ventilation, should not preclude the indication for bariatric surgery. In our experience, a prior COVID-19 infection does not induce additional specific complications following bariatric surgery.     

Bariatric surgery improves metabolic and nonalcoholic fatty liver disease markers in metabolically healthy patients with morbid obesity at 5 years

BackgroundNo studies have evaluated the effect of metabolic and bariatric surgery (MBS) on nonalcoholic fatty liver disease (NAFLD) and cardiometabolic markers in metabolically healthy patients with morbid obesity (MHMO) at midterm.ObjectivesTo assess the effect of MBS on NAFLD and cardiometabolic markers in MHMO patients and ascertain whether metabolically unhealthy patients with morbid obesity (MUMO) remain metabolically healthy at 5 years after MBS.SettingUniversity hospital.MethodsA total of 191 patients with a body mass index >40 kg/m² and at least 5 years of follow-up were retrospectively analyzed. Lost to follow-up were 37.6% (151 of 401 patients). Patients were classified as MHMO if 1 or 0 of the cardiometabolic markers were present using the Wildman criteria. The degree of liver fibrosis was assessed using the NAFLD fibrosis score (NFS).ResultsForty-one patients (21.5%) fulfilled the criteria for MHMO. They showed significant improvements in blood pressure (from 135.1 ± 22.1 and 84.2 ± 14.3 mm Hg to 117.7 ± 19.2 and 73.0 ± 10.9 mm Hg), plasma glucose (from 91.0 ± 5.6 mg/dL to 87.2 ± 5.2 mg/dL), homeostatic model assessment for insulin resistance (from 2.2 ± .9 to 1.0 ± .8), triglycerides (from 88.0 [range, 79.5–103.5] mg/dL to 61.0 [range, 2.0–76.5] mg/dL), alanine aminotransferase, gamma-glutamyl transpeptidase NFS (from −1.0 ± 1.0 to −1.9 ± 1.2), and high-density lipoprotein cholesterol (from 56.9 ± 10.5 mg/dL to 77.9 ± 17.4 mg/dL) at 5 years after surgery. A total of 108 MUMO patients (84.4%) who became metabolically healthy after 1 year stayed healthy at 5 years.ConclusionsMBS induced a midterm improvement in cardiometabolic and NAFLD markers in MHMO patients. Seventy-six percent of MUMO patients became metabolically healthy at 5 years after MBS.     

非酒精性脂肪性肝病患者肝癌筛查的必要性及可行性

原发性肝癌的发病率和死亡率与日俱增,严重影响公众健康。其中慢性肝病,尤其是肝硬化,是导致肝癌的主要病因和危险因素。随着对病毒性肝炎的有效防治,以及肥胖、糖尿病等代谢综合征的发病率迅速增长,非酒精性脂肪性肝病已成为最常见的慢性肝病原因,因此对非酒精性脂肪性肝病患者进行肝癌筛查刻不容缓。现综述概括总结了非酒精性脂肪性肝病及...     

The effect of a low-carbohydrate diet on the nonalcoholic fatty liver in morbidly obese patients before bariatric surgery

Background Bariatric surgery may be complicated by enlargement of the liver, especially of the left lobe, caused by nonalcoholic fatty liver disease often present with morbid obesity. Methods The effect of a very low carbohydrate diet for 4 weeks before surgery on liver density and volume was assessed in 14 candidates for bariatric surgery. Computed tomography (CT) scans were performed before and at termination of the diet period. Results The CT scans clearly showed a significant increase in mean liver density (p = 0.06) and a decrease in mean liver volume (p = 0.01). The increased mean density of the left lobe was markedly greater than that of the right lobe. Conclusions The findings show that 4 weeks of a very low carbohydrate diet reduces liver fat content and liver size, particularly of the left lobe. This approach may render bariatric surgery or any foregut operations less difficult in morbidly obese patients and may be a useful treatment for nonalcoholic fatty liver disease.     

Utility of transient elastography (fibroscan) and impact of bariatric surgery on nonalcoholic fatty liver disease (NAFLD) in morbidly obese patients

Background

Controlled attenuation parameter (CAP) is a novel, noninvasive technique for assessing hepatic steatosis. However, its role in morbidly obese individuals is unclear. The effect of bariatric surgery on inflammation and fibrosis needs to be explored.

The impact of COVID-19 on foot and ankle surgery in a major trauma centre

Introduction and aimsCOVID-19 has had a significant impact on orthopaedic surgery globally. This paper aims to evaluate the impact of COVID-19 on foot and ankle trauma in a major trauma centre.MethodsA retrospective observational study of prospectively collected data was performed. All foot and ankle trauma patients over a 33 week period (1st December 2019–16th July 2020) were analysed. All patients with trauma classified by the AO/OTA as occurring at locations 43 and 81–88 were included.ResultsOver the 33 weeks analysed, there was a total of 1661 trauma cases performed; of these, only 230 (13.85%) were foot and ankle trauma cases. As percentage of cases during each period of lockdown, foot and ankle made up 15.20% (147 out of 967) pre-lockdown, 8.81% (17 out of 193) during lockdown and 13.17% (66 out of 501) post lockdown. This difference was statistically significant (p < .001). The most significant change in trauma management was the treatment of malleolar fractures.Further analysis showed that during the lockdown period 29 foot and ankle fractures were treated the same and 13 were treated differently, (i.e. 31% of fractures were treated conservatively, when the consultants preferred practice would have been surgical intervention). Of the 13 patients, 3 have had surgical management since lockdown has been eased.ConclusionIt is evident that the trauma case activity within foot and ankle was significantly reduced during the COVID-19 period. The consequences of change in management were mitigated due to a reduction in case load.