1
|
Edwards MA, Falstin M, Alomari M, Spaulding A, Brennan ER. Robotic Versus Laparoscopic Sleeve Gastrectomy Outcome Trends Over Time: Are We Improving? Obes Surg 2024; 34:2596-2606. [PMID: 38844716 DOI: 10.1007/s11695-024-07334-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Sleeve gastrectomy (SG) is an effective treatment option for patients with obesity. Robotic sleeve gastrectomy (RSG) is reported to have worse short-term patient outcomes compared to laparoscopic SG (LSG), but prior studies may not have accounted for evolving technology, including stapler utilization. OBJECTIVE This study compared RSG and LSG outcomes over different time periods. SETTING Academic Hospital. MATERIAL AND METHODS The 2015 to 2021 Metabolic and Bariatric Surgery Accreditation and Quality Improvement Project (MBSAQIP) databases were used. Matched cohort analyses compared adverse outcomes within 30 days for the 2015-2018 and 2019-2021 cohorts. Bivariate and regression models compared cohorts using Stata/MP 17.0. RESULTS Seven hundred sixty-eight thousand and sixty-nine SG were analyzed. Over the 7-year study period, all patient outcomes, operation length (OL), and length of stay (LOS) trended downward for RSG, except surgical site infection (SSI). In the 2015-2018 cohort, leak was significantly higher with RSG (OR 1.53), and OL and LOS longer (p < 0.001). In the 2019-2021 cohort which corelated with a significant increase in robotic cases, leak (OR 1.36), SSI (OR 1.46), and morbidity (OR 1.11) were higher with RSG. While the mean difference in OL and LOS decreased between the two time periods, they remain longer for RSG (p < 0.001). CONCLUSION While RSG and LSG are safe with similar mortality, RSG continues to be associated with higher rates of morbidity, leak, and SSI, as well as longer OL, hospital LOS, and higher cost. The study is limited by the ability to account for the impact of surgeon experience and stapler utilization on outcomes.
Collapse
Affiliation(s)
- Michael A Edwards
- Department of Surgery, Division of Advanced GI and Bariatric Surgery, Mayo Clinic, 4500 San Pablo Rd S, Jacksonville, FL, 32224, USA.
| | - Mark Falstin
- Department of Surgery, Division of Advanced GI and Bariatric Surgery, Mayo Clinic, 4500 San Pablo Rd S, Jacksonville, FL, 32224, USA
| | - Mohammad Alomari
- Department of Surgery, Division of Advanced GI and Bariatric Surgery, Mayo Clinic, 4500 San Pablo Rd S, Jacksonville, FL, 32224, USA
| | - Aaron Spaulding
- Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Emily R Brennan
- Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center, Mayo Clinic, Jacksonville, FL, 32224, USA
| |
Collapse
|
2
|
McLean C, Mocanu V, Birch DW, Karmali S, Switzer NJ. Characterization of Early Small Bowel Obstructions Following Elective Bariatric Surgery. Obes Surg 2024; 34:1131-1137. [PMID: 38363497 DOI: 10.1007/s11695-024-07079-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/17/2024]
Abstract
PURPOSE Small bowel obstruction (SBO) after bariatric surgery is an uncommon but important complication. We sought to characterize bariatric surgery patients who developed SBO, to compare 30-day complications, and to determine the influence of patient and procedure factors on the development of SBO. METHODS AND MATERIALS All data was extracted from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database using the 2020 operative year. Multivariable logistic regression modelling was used to determine the influence of patient and operative factors on the development of SBO. RESULTS Of a total of 142 111 patients, 408 (0.3%) were identified as having developed an SBO. SBO patients were older (45.7 ± 11.5 vs. 43.5 ± 11.9 years; p = 0.0002), of reduced BMI (43.6 ± 6.8 vs. 45.1 ± 7.7; p = 0.0001), and more likely to be of female sex (92.2% vs. 81.1%; p < 0.0001). At 30 days post-operation, serious complications were increased in SBO patients. Roux-en-Y gastric bypass (RYGB) was the largest independent predicator of the development of SBO (OR 11.91; 95% CI 8.92-15.90; p < 0.0001). With regard to patient factors, COPD (OR 2.60; 95% CI 1.54-4.38; p < 0.0001) and prior DVT (OR 2.37; 95% CI 1.49-3.77; p < 0.0001) were found to be independently predictive of the development of SBO. Additionally having a lower BMI and being of female sex were found to be independently predictive. CONCLUSION SBO occurred in approximately 0.3% of MBSAQIP cases. SBO is associated with serious outcome measures and patients of female sex and reduced index BMI, and those undergoing RYGB may be at an increased risk.
Collapse
Affiliation(s)
- Cheynne McLean
- Division of General Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.
| | - Valentin Mocanu
- Division of General Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Daniel W Birch
- Division of General Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Shahzeer Karmali
- Division of General Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Noah J Switzer
- Division of General Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
3
|
Katayama RC, Herbella FAM, Patti MG, Arasaki CH, Oliveira RO, de Grande AC. Laparoscopic Sleeve Gastrectomy Lacks Intrasurgeon and Intersurgeon Agreement in Technical Key Points That May Affect Gastroesophageal Reflux Disease After the Procedure. Obes Surg 2024; 34:542-548. [PMID: 38157142 DOI: 10.1007/s11695-023-07016-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE Gastroesophageal reflux disease (GERD) after sleeve gastrectomy (SG) may be related to surgical technique. The fact that there is a lack of technical standardization may explain large differences in GERD incidence. The aim of this study is to evaluate auto- and hetero-agreement for SG technical key points based on recorded videos. METHODS Ten experienced (minimum of 5 years performing bariatric surgery, minimum of 30 SG per year) bariatric surgeons (9 (90%) males) were selected. Participants were invited to send an unedited video with a typical laparoscopic SG (first round of the Delphi process). Videos were cropped into small clips comprising 11 key points of the technique. All anonymized clips (including their own) were returned to all surgeons. Individuals were asked to agree or not with the technique demonstrated (second round). The percentage of agreement was presented to the entire group that was asked for a second vote (third round). RESULTS Agreement was poor/fair for all points except hiatal repair that had a very good agreement in the second round. For the third round, there was a slight increase in agreement for distance esophagogastric junction/proximal stapling and gastric mobilization for stapling and a slight decrease in agreement for gastric tube final shape. Only 1 (10%) surgeon recognized that he evaluated his own video. Five (50%) surgeons disagreed with themselves on 1 or more points. CONCLUSION SG lacks intrasurgeon and intersurgeon agreement in technical key points that may justify significant differences in GERD incidence after the procedure.
Collapse
Affiliation(s)
- Rafael C Katayama
- Department of Surgery, Esophagus and Stomach Division, Federal University of São Paulo, Napoleão de Barros Street, São Paulo, 71504024-002, Brazil.
| | - Fernando A M Herbella
- Department of Surgery, Esophagus and Stomach Division, Federal University of São Paulo, Napoleão de Barros Street, São Paulo, 71504024-002, Brazil
| | - Marco G Patti
- Department of Surgery, University of Virginia, Charlottesville, VA, USA
| | - Carlos H Arasaki
- Department of Surgery, Esophagus and Stomach Division, Federal University of São Paulo, Napoleão de Barros Street, São Paulo, 71504024-002, Brazil
| | - Rafaella O Oliveira
- Department of Surgery, Esophagus and Stomach Division, Federal University of São Paulo, Napoleão de Barros Street, São Paulo, 71504024-002, Brazil
| | - Ana C de Grande
- Department of Surgery, Esophagus and Stomach Division, Federal University of São Paulo, Napoleão de Barros Street, São Paulo, 71504024-002, Brazil
| |
Collapse
|
4
|
Gönüllü E, Yüksel A, Coşkun M, Harmantepe T, Fırtına G, Karaman K. Oversewing the Staple Line: Does It Safe to Prevent Leakage? J Laparoendosc Adv Surg Tech A 2024; 34:120-126. [PMID: 37934468 DOI: 10.1089/lap.2023.0284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Introduction: The staple line (SL) leak remains one of the most serious complications after laparoscopic sleeve gastrectomy (LSG). The present study aims to determine whether reinforcing the SL with sutures is effective in maintaining tissue integrity. Materials and Methods: LSG Specimens of 60 patients were ex vivo studied. The specimens were divided into three groups: In group 1, the entire SL was reinforced, while the upper half part of the SL was reinforced from fundus to antrum in group 2. The SL was not reinforced in group 3. Then, the pressure inside the sample was increased, and the bursting pressure location and pressure value during the bursting were recorded. Results: The bursting pressure was significantly higher in entire and half oversewed SL groups than the none reinforced group (group 1: 115 mmHg [95-170]; group 2: 95 mmHg [80-120]; group 3: 40 mmHg [22-60], respectively, [P < .001]). The most common site of bursting was in the middle ⅓ of SL (35, 53.8%), followed by the proximal ⅓ part of SL (18, 27.7%), and the distal ⅓ part of SL (12, 18.5%), respectively. The bursting site was significantly more frequent in the corpus than the other parts of the SL (P = .013). Conclusion: Reinforcing the SL with sutures preserves tissue integrity. Although bursting was most frequently observed in the corpus region ex vivo, the fact that almost all real-life leaks develop in the area close to the Angle of His. This situation suggests that strengthening the suture line with reinforcement alone will not be protective enough against leaks in the fundus line, and factors such as tissue ischemia may be considered.
Collapse
Affiliation(s)
- Emre Gönüllü
- Gastrointestinal Surgery Department, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Adem Yüksel
- Gastrointestinal Surgery Department, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Murat Coşkun
- General Surgery Department, Sakarya Training and Research Hospital, Sakarya, Turkey
| | - Tarık Harmantepe
- General Surgery Department, Sakarya Training and Research Hospital, Sakarya, Turkey
| | - Gizem Fırtına
- Gastrointestinal Surgery Department, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Kerem Karaman
- Gastrointestinal Surgery Department, Sakarya University Faculty of Medicine, Sakarya, Turkey
| |
Collapse
|
5
|
Breakeit SA, Gheshayan S, Alamri BA, Albalwi EF, Alharbi NA, Alhabdan S. A Case of a Gastric Stent Complication Presenting With a Gastrojujenal Fistula. Cureus 2023; 15:e51143. [PMID: 38196409 PMCID: PMC10774839 DOI: 10.7759/cureus.51143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2023] [Indexed: 01/11/2024] Open
Abstract
Laparoscopic sleeve gastrectomy (SG) is a widely performed bariatric procedure known for its safety and efficacy, yet complications, particularly postoperative leaks, remain a concern. Endoscopic stenting is one of the approaches for leak management that has some complications such as the rare fistula with adjacent organs. Here, we present a unique case of a 56-year-old diabetic female who developed a gastroenteric fistula following endoscopic stent placement for a post-SG leak. The patient had a delayed stent removal, and three weeks later she presented with dysphagia and vomiting in a follow-up appointment. Esophagogastroduodenoscopy (EGD) showed an esophageal stricture and a large gastroenteric fistula that was confirmed by imaging to be a fistula between the pylorus and proximal small bowel. The patient's symptoms improved gradually with conservative management, and imaging showed the resolution of the fistula and associated esophageal stricture. This case highlights the importance of timely stent removal (ideally within 6-8 weeks) and close follow-up with EGD and CT to detect and manage potential complications, while emphasizing the need for further research on optimal stent placement duration.
Collapse
Affiliation(s)
| | | | - Bader A Alamri
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Emad F Albalwi
- General Surgery, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Nasser A Alharbi
- General Surgery, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Sultan Alhabdan
- General and Colorectal Surgery, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| |
Collapse
|
6
|
Jing W, Huang Y, Feng J, Li H, Yu X, Zhao B, Wei P. The clinical effectiveness of staple line reinforcement with different matrix used in surgery. Front Bioeng Biotechnol 2023; 11:1178619. [PMID: 37351469 PMCID: PMC10282759 DOI: 10.3389/fbioe.2023.1178619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/24/2023] [Indexed: 06/24/2023] Open
Abstract
Staplers are widely used in clinics; however, complications such as bleeding and leakage remain a challenge for surgeons. To tackle this issue, buttress materials are recommended to reinforce the staple line. This Review provides a systematic summary of the characteristics and applications of the buttress materials. First, the physical and chemical properties of synthetic polymer materials and extracellular matrix used for the buttress materials are introduced, as well as their pros and cons in clinical applications. Second, we review the clinical effects of reinforcement mesh in pneumonectomy, sleeve gastrectomy, pancreatectomy, and colorectal resection. Based on the analysis of numerous research data, we believe that buttress materials play a crucial role in increasing staple line strength and reducing the probability of complications, such as bleeding and leakage. However, considering the requirements of bioactivity, degradability, and biosafety, non-crosslinked small intestinal submucosa (SIS) matrix material is the preferred candidate. It has high research and application value, but further studies are required to confirm this. The aim of this Review is to provide comprehensive guidance on the selection of materials for staple line reinforcement.
Collapse
Affiliation(s)
| | | | | | | | | | - Bo Zhao
- *Correspondence: Bo Zhao, ; Pengfei Wei,
| | | |
Collapse
|
7
|
Xue Q, Xing Q, Dong L, Guo M, Zhang X, Wei X, Jia B, Wang Y, Chen H, Hu X, Liu H, Zhang Y, Wong GTC, Huang C. ST36 acupoint injection with anisodamine for postoperative nausea and vomiting in female patients after bariatric surgery: a prospective, randomized controlled trial. Surg Endosc 2023:10.1007/s00464-023-10037-6. [PMID: 37095234 PMCID: PMC10338617 DOI: 10.1007/s00464-023-10037-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 03/12/2023] [Indexed: 04/26/2023]
Abstract
BACKGROUND The use of multimodal pharmacological prophylactic regimes has decreased postoperative nausea and vomiting (PONV) in general but it still occurs in over 60% of female patients after bariatric surgery. This study aimed to evaluate the efficacy of ST36 acupoint injection with anisodamine in prevention of PONV among female patients after bariatric surgery. METHODS Ninety patients undergoing laparoscopic sleeve gastrectomy were randomly allocated to anisodamine or control group at the ratio of 2:1. Anisodamine or normal saline was injected into Zusanli (ST36) bilaterally after induction of general anesthesia. The incidence and severity of PONV were assessed during the first 3 postoperative days and at 3 months. The quality of early recovery of anesthesia, gastrointestinal function, sleep quality, anxiety, depression, and complications were also evaluated. RESULTS Baseline and perioperative characteristics were comparable between two groups. In the anisodamine group, 25 patients (42.4%) experienced vomiting within postoperative 24 h compared with 21 (72.4%) in the control group (relative risk 0.59; 95% confidence interval 0.40-0.85). Time to first rescue antiemetic was 6.5 h in anisodamine group, and 1.7 h in the control group (P = 0.011). Less rescue antiemetic was required during the first 24 h in the anisodamine group (P = 0.024). There were no differences in either postoperative nausea or other recovery characteristics. CONCLUSIONS The addition of ST36 acupoint injection with anisodamine significantly reduced postoperative vomiting without affecting nausea in female patients with obesity undergoing laparoscopic sleeve gastrectomy.
Collapse
Affiliation(s)
- Qi Xue
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Qijing Xing
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Ling Dong
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Min Guo
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Xiaoyan Zhang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Xinchun Wei
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Benli Jia
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Yong Wang
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Hong Chen
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Xianwen Hu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei City, Anhui Province, China
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, CA, USA
| | - Ye Zhang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China.
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei City, Anhui Province, China.
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China.
| | - Gordon Tin Chun Wong
- Department of Anaesthesiology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
| | - Chunxia Huang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, China.
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei City, Anhui Province, China.
- Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei City, Anhui Province, China.
| |
Collapse
|
8
|
Comparison of robot-assisted sleeve gastrectomy outcomes in multiple staple line treatment modalities from 2015 to 2019: a 5-year propensity score-adjusted MBSAQIP® analysis. Surg Endosc 2023; 37:1401-1411. [PMID: 35701675 DOI: 10.1007/s00464-022-09366-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/22/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Robot-assisted sleeve gastrectomy (RSG) is an increasingly common approach to sleeve gastrectomy (SG). Staple line reinforcement (SLR) is well-discussed in laparoscopic SG literature, but not RSG- likely due to the absence of dedicated robotic SLR devices. However, most RSG cases report SLR. This retrospective analysis compares outcomes in RSG cases reporting (1) any staple line treatment (SLT) vs none and (2) SLR vs oversewing. METHODS MBSAQIP was queried for adults who underwent RSG from 2015 to 2019. Open procedures, Natural Orifice Transluminal Endoscopic Surgery, hand-assisted, single-incision, concurrent procedures, and illogical BMIs were excluded (n = 3444). Final sample included 52,354 patients. Two comparisons were made: SLT (n = 34,886) vs none (n = 17,468) and SLR (n = 22,217) vs oversew (n = 5620). We fitted multivariable regression models to estimate risk ratios (RR) and 95% confidence intervals (CI) and performed propensity score analysis with inverse probability of treatment weight based on patient factors. RESULTS Most RSG cases utilized SLT (66.6%). Cases with SLT had a reduced risk of organ space SSI (RR 0.68 [0.49, 0.94]), 30-day reoperation (RR 0.77 [0.64, 0.93]), 30-day re-intervention (RR 0.80 [0.67, 0.96]), sepsis (RR 0.58 [0.35, 0.96]), unplanned intubation (RR 0.59 [0.37, 0.93]), extended ventilator use (RR 0.46 [0.23, 0.91]), and renal failure (RR 0.40 [0.19, 0.82]) compared to no-treatment cases. In single-treatment cases (n = 27,837), most utilized SLR (79.8%). Cases with oversew had a higher risk of any SSI (RR 1.70 [1.19, 2.42]), superficial incisional SSI (RR 1.71 [1.06, 2.76]), septic shock (RR 6.47 [2.11, 19.87]), unplanned intubation (RR 2.18 [1.06, 4.47]), and extended ventilator use (> 48 h) (RR 4.55 [1.63, 12.71]) than SLR. CONCLUSIONS Our data suggest SLT in RSG is associated with reduced risk of some adverse outcomes vs no-treatment. Among SLT, SLR demonstrated lower risk than oversewing. However, risk of all-cause mortality, cardiac arrest, and unplanned ICU admission were not significant.
Collapse
|
9
|
Roach E, Laplante S, Stogryn S, Maeda A, Jackson T, Okrainec A. Weight loss outcomes for patients undergoing conversion to Roux-en-Y-gastric bypass after sleeve gastrectomy. Surg Endosc 2022; 37:3208-3214. [PMID: 35982286 DOI: 10.1007/s00464-022-09506-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/23/2022] [Indexed: 12/20/2022]
Abstract
BACKGROUND Despite excellent reported outcomes after laparoscopic sleeve gastrectomy (LSG), a percentage of patients go on to have a secondary bariatric surgery to manage side-effects or address weight regain after LSG. Reported weight loss outcomes for patients undergoing laparoscopic Roux-en-Y gastric bypass (LRYGB) after previous LSG are variable. We sought to determine the weight-loss outcomes of patients undergoing LRYGB after LSG in the largest bariatric surgical network in Canada and to determine whether outcomes differ according to indications for conversion. METHODS The Bariatric Registry is a multi-center database with prospectively collected standardized data on patients undergoing bariatric surgery at ten Bariatric Centers of Excellence within the Ontario Bariatric Network in Ontario, Canada. A retrospective analysis was performed of patients who underwent LRYGB after previous LSG between 2012 and 2019. Weight loss outcomes were compared between patients who underwent LRYGB for insufficient weight loss/weight regain and those who underwent conversion to LRYGB for other reasons. RESULTS Excluding patients with multiple revisions and those without follow-up data, 48 patients were included in the analysis: 33 patients (69%) underwent conversion to LRGYB for insufficient weight loss/weight regain (Group 1) and 15 patients (31%) underwent conversion for other reasons (Group 2). Mean body mass index (BMI) measured pre-LSG, pre-LRYGB, and at mid-term follow-up after LRYGB was 61, 48, and 43 kg/m2 in Group 1 and 51, 39, and 34 kg/m2 in Group 2, respectively. ΔBMI and %total weight loss (TWL) at mid-term follow-up were not significantly different between the groups. CONCLUSIONS Conversion to LRYGB after previous LSG resulted in an additional loss of 4 kg/m2 in BMI points at mid-term follow-up. Patients lost a similar number of BMI points and cumulative %TWL was similar regardless of reason for conversion. This can help inform surgical decision-making in the setting of weight regain after LSG.
Collapse
Affiliation(s)
- Eileen Roach
- Division of General Surgery, University Health Network, Toronto, ON, Canada.
- Department of Surgery, University of Toronto, Toronto, ON, Canada.
- Division of General Surgery, Toronto Western Hospital, 8MP-325. 399 Bathurst St., Toronto, ON, M5T 2S8, Canada.
| | - Simon Laplante
- Division of General Surgery, University Health Network, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Shannon Stogryn
- Division of General Surgery, University Health Network, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Azusa Maeda
- Division of General Surgery, University Health Network, Toronto, ON, Canada
| | - Timothy Jackson
- Division of General Surgery, University Health Network, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Allan Okrainec
- Division of General Surgery, University Health Network, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
10
|
Suture or Not Suture: is Staple Line Reinforcement Necessary in Laparoscopic Sleeve Gastrectomy? Obes Surg 2022; 32:2463-2464. [DOI: 10.1007/s11695-022-06009-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
|
11
|
Verhoeff K, Mocanu V, Dang J, Wilson H, Switzer NJ, Birch DW, Karmali S. Impact of the COVID-19 pandemic on bariatric surgery in North America – A retrospective analysis of 834,647 patients. Surg Obes Relat Dis 2022; 18:803-811. [PMID: 35474010 PMCID: PMC8933967 DOI: 10.1016/j.soard.2022.03.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/07/2022] [Accepted: 03/13/2022] [Indexed: 12/27/2022]
Abstract
Background COVID-19 has transformed surgical care, yet little is known regarding implications for bariatric surgery. Objective We sought to characterize the effect of COVID-19 on bariatric surgery delivery and outcomes. Setting The Metabolic and Bariatric Accreditation and Quality Improvement Program (MBSAQIP) collects data from 885 centers in North America. Methods The MBSAQIP database was evaluated with 2 cohorts described: the COVID-19 and the pre–COVID-19, with patients receiving surgery in 2020 and 2015–2019, respectively. Yearly operative trends were characterized, and bivariate analysis compared demographics and postoperative outcomes. Multivariable modeling evaluated 30-day readmission, reintervention, and reoperation rates and factors associated with undergoing Roux-en-Y gastric bypass. Results We evaluated 834,647 patients, with 155,830 undergoing bariatric surgery during the 2020 pandemic year. A 12.1% reduction in total cases (177,208 in 2019 versus 155,830 in 2020; P < .001) and 13.8% reduction in cases per center occurred (204.2 cases per center in 2019 versus 176.1 cases per center in 2020; P < .001). Patients receiving bariatric surgery during the pandemic were younger and had fewer co-morbidities. Use of sleeve gastrectomy increased (74.5% versus 72.5%; P < .001), and surgery during COVID-19 was associated with reduced Roux-en-Y gastric bypass procedure selection (odds ratio = .83; 95% CI: .82–.84; P < .001). Length of stay decreased significantly (1.4 ± 1.4 days versus 1.6 ± 1.4 days; P < .001), yet postoperative outcomes were similar. After adjusting for co-morbidities, patients during COVID-19 had decreased 30-day odds of readmission and reintervention and a small increase in odds of reoperation. Conclusion The COVID-19 pandemic dramatically changed bariatric surgery delivery. Further studies evaluating the long-term effects of these changes are warranted.
Collapse
Affiliation(s)
- Kevin Verhoeff
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.
| | - Valentin Mocanu
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Jerry Dang
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Hillary Wilson
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Noah J Switzer
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Daniel W Birch
- Centre for Advancement of Surgical Education and Simulation (CASES), Royal Alexandra Hospital, Edmonton, Alberta, Canada
| | - Shahzeer Karmali
- Centre for Advancement of Surgical Education and Simulation (CASES), Royal Alexandra Hospital, Edmonton, Alberta, Canada
| |
Collapse
|
12
|
Köhler H, Markov V, Watschke A, Gruner-Labitzke K, Böker C, Kröger C. Changes in Work Ability after Weight-Loss Surgery: Results of a Longitudinal Study of Persons with Morbid Obesity before and after Bariatric Surgery. Obes Facts 2022; 15:36-45. [PMID: 34749355 PMCID: PMC8820149 DOI: 10.1159/000519269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 08/17/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Bariatric surgery is a life-changing treatment, but knowledge of its influence on changes in work ability is still limited. We hypothesized that self-reported work ability improves in response to surgery-induced weight loss and sociodemographical variables (e.g., age, sex, and marital status), and that psychosocial characteristics (e.g., depressive symptoms and dysfunctional eating) may have predictive value as to patients' work ability. METHODS A total of 200 participants scheduled for bariatric surgery were recruited between September 2015 and June 2018. They completed several self-report measures at the preoperative examination (t1) and at 6- (t2) and 12 months (t3) after bariatric surgery. A repeated-measures analysis of variance was calculated to detect any changes in the work ability and body mass index (BMI) among the 3 time points. Further, a hierarchical multiple regression analysis was used to determine whether any demographical and psychosocial characteristics at (t1) would predict work ability at (t3). RESULTS Participants (82% of whom were women) were middle-aged and showed a BMI of nearly 46 at the preoperative medical examination. Excess weight loss at (t2) and at (t3) was 49 and 66%, respectively. Work ability increased toward a moderate level after weight-loss surgery. Work ability and dysfunctional eating at (t1) showed significant predictive value with respect to work ability at (t3). DISCUSSION The results suggest that weight-loss surgery has a positive impact on work ability, and indicate a predictive value for the extent of weight loss and dysfunctional eating behavior. Against our hypothesis and in contrast to former research, a predictive value for depressive symptoms and age was not revealed. Further research must show how interventions can support and maintain improvements in work ability after bariatric surgery, in order to reduce sick leave and unemployment in patients with preoperative morbid obesity.
Collapse
Affiliation(s)
- Hinrich Köhler
- Department of General, Visceral, and Bariatric Surgery, Herzogin Elisabeth Hospital, Braunschweig, Germany
- *Hinrich Köhler,
| | - Valentin Markov
- Department of Psychology, University of Hildesheim, Hildesheim, Germany
| | - Anna Watschke
- Department of Psychology, University of Braunschweig, Braunschweig, Germany
| | - Kerstin Gruner-Labitzke
- Department of General, Visceral, and Bariatric Surgery, Herzogin Elisabeth Hospital, Braunschweig, Germany
| | - Clara Böker
- Department of General, Visceral, Vascular, and Bariatric Surgery, Klinikum Nordstadt, Hannover, Germany
| | - Christoph Kröger
- Department of Psychology, University of Hildesheim, Hildesheim, Germany
| |
Collapse
|
13
|
Boeker C, Schneider B, Markov V, Mall J, Reetz C, Wilkens L, Hakami I, Stroh C, Köhler H. Primary Sleeve Gastrectomy and Leaks: The Impact of Fundus-Wall Thickness and Staple Heights on Leakage-An Observational Study of 500 Patients. Front Surg 2021; 8:747171. [PMID: 34746223 PMCID: PMC8566748 DOI: 10.3389/fsurg.2021.747171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/24/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: The most feared complication of laparoscopic sleeve gastrectomy (LSG) is staple-line leakage. Staple height and fundus-wall thickness might influence such leakage, and this study examined their possible impact on leak incidence. Factors including gender, age, comorbidities, and reinforcement of the staple line were also investigated. Methods: A total of 500 patients between 17 and 71 years of age who were scheduled for LSG were selected to participate in the study. For technical reasons, 53 were excluded. The fundus-wall thickness of 447 patients after LSG was investigated. The impact of staple height, fundus-wall thickness, demographic and medical factors on leak incidence were investigated. Most of our patients (309) were female (69%), while 138 were male (31%). Results: The mean thickness of the proximal fundus wall was 2,904 μm, 3,172 μm in men and 2,784 μm in women. The leak rate was 4.9%. Age, fundus-wall thickness, and BMI showed a strong influence on leak risk, but this effect was significant only for age (p = 0.01). Patient gender and staple size showed no significant influence on the correlation between fundus-wall thickness and leak risk. Gender displayed a small effect of influence on this correlation, with η2 = 0.05. Discussion: Because older age had a significant effect on increasing the risk of staple-line leakage, there is a need for a more specific focus on these patients. Thinner fundus wall and female gender might predispose patients to staple-line leaks, but a significant value could not be reached. Therefore, staple size should remain the surgeon's choice based on clinical experience.
Collapse
Affiliation(s)
- Clara Boeker
- Department of General, Visceral, Vascular and Bariatric Surgery, Klinikum Nordstadt, Hannover, Germany
| | | | - Valentin Markov
- Department of Psychology, University of Hildesheim, Hildesheim, Germany
| | - Julian Mall
- Department of General, Visceral, Vascular and Bariatric Surgery, Klinikum Nordstadt, Hannover, Germany
| | - Christian Reetz
- Department of General, Visceral, Vascular and Bariatric Surgery, Klinikum Nordstadt, Hannover, Germany
| | - Ludwig Wilkens
- Department of Pathology, Klinikum Nordstadt, Hannover, Germany
| | - Ibrahim Hakami
- Department of General, Visceral and Bariatric Surgery, College of Medicine at Jazan University, Jizan, Saudi Arabia
| | - Christine Stroh
- Department of Bariatric Surgery, Stiftung Rehabilitation Heidelberg Waldklinikum, Gera, Germany
| | - Hinrich Köhler
- Department of General, Visceral and Bariatric Surgery, Herzogin Elisabeth Hospital, Braunschweig, Germany
| |
Collapse
|
14
|
Hypoalbuminemia Predicts Serious Complications Following Elective Bariatric Surgery. Obes Surg 2021; 31:4519-4527. [PMID: 34378157 DOI: 10.1007/s11695-021-05641-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The aims of this study were to (1) characterize the prevalence of hypoalbuminemia (HA), (2) compare complication rates among HA and non-HA patients, and (3) determine the influence of HA on postoperative complications and 30-day mortality among bariatric surgery patients. MATERIALS AND METHODS Data was extracted from the MBSAQIP registry from 2015 to 2018. A presurgical serum albumin level of [Formula: see text] 3.5 g/dL was used to organize the patient population into HA and non-HA cohorts. Bivariate analysis and multivariable logistic regression modeling were used. RESULTS Of 590,971 patients, 42,618 (7.2%) were identified as having serum albumin levels [Formula: see text] 3.5 g/dL. HA patients were younger (44.0 + / - 11.9 vs. 44.5 + / - 12.0 years; p < 0.0001), were of increased BMI (48.5 + / - 9.0 kg/m2 vs. 45.1 + / - 7.7 kg/m2; p < 0.0001), and had a lower baseline functional status (1.6% vs. 1.0% dependent or partially dependent; p < 0.0001). HA patients had more anastomotic leaks (0.46% vs. 0.38%; p = 0.02), deep surgical site infections (0.37% vs. 0.24%; p < 0.0001), and composite serious complications (4.4% vs. 3.3%; p < 0.0001). At 30-day post-operation, complications including need for reintervention (1.6% vs. 1.2%; p < 0.0001), readmission (4.8% vs. 3.7%; p < 0.0001), and mortality (0.14% vs. 0.086%; p = 0.001) were all more prevalent among HA patients. After functional status, HA was the strongest modifiable predictor of serious complications but was not predictive of 30-day mortality. CONCLUSION We identified HA as one of the greatest modifiable factors predictive of serious complications. Adoption of strategies to identify and improve preoperative serum albumin levels may reduce overall serious complications among elective bariatric surgery patients.
Collapse
|
15
|
Mierzwa AS, Mocanu V, Marcil G, Dang J, Switzer NJ, Birch DW, Karmali S. Characterizing Timing of Postoperative Complications Following Elective Roux-en-Y gastric Bypass and Sleeve Gastrectomy. Obes Surg 2021; 31:4492-4501. [PMID: 34374931 PMCID: PMC8353221 DOI: 10.1007/s11695-021-05638-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 11/30/2022]
Abstract
Purpose With the growing prevalence of bariatric procedures performed worldwide, it is important to understand the timing of postoperative complications following bariatric surgery and the differences which may exist between procedures. Methods This retrospective study was conducted using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) data registry from 2017 to 2018. All patients with primary elective Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) procedures were included. The primary outcome was to characterize the timing of postoperative complications for RYGB and SG. Results A total of 316,314 patients were identified with 237,066 (74.9%) in the SG cohort and 79,248 (25.1%) in the RYGB cohort. Early complications included myocardial infarction (4.7 ± 6.4 days), cardiac arrest (6.4 ± 8.5 days), pneumonia (6.9 ± 6.9 days), progressive renal insufficiency (8.1 ± 8.1 days), and acute renal failure (8.2 ± 7.6 days). Late complications included Clostridioides difficile infection (11.3 ± 7.8 days), organ space infections (11.7 ± 7.9 days), deep incisional infections (12.4 ± 6.6 days), superficial incisional infections (13.2 ± 6.9 days), and urinary tract infections (14.0 ± 8.4 days). SG patients were more likely to be diagnosed later than RYGB patients with regard to superficial incisional infections (14.0 ± 7.4 days vs 12.5 ± 6.3 days; p = 0.002), organ space infections (12.6 ± 7.8 days vs 10.8 ± 7.9 days; p = 0.001), acute renal failure (9.3 ± 8.1 days vs 6.8 ± 6.8 days; p = 0.03), and pulmonary embolism (13.7 ± 7.5 days vs 11.3 ± 8.0 days; p = 0.003). No significant difference in timing was observed for any other complication by procedures. Conclusion We demonstrate that significant differences in timing exist between complications and that these differences also vary by surgical procedure. Graphical abstract ![]()
Collapse
Affiliation(s)
- Anna S. Mierzwa
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Valentin Mocanu
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Gabriel Marcil
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Jerry Dang
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Noah J. Switzer
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Daniel W. Birch
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| | - Shahzeer Karmali
- Department of Surgery, University of Alberta, Edmonton, AB Canada
| |
Collapse
|
16
|
Calcaterra V, Cena H, Pelizzo G, Porri D, Regalbuto C, Vinci F, Destro F, Vestri E, Verduci E, Bosetti A, Zuccotti G, Stanford FC. Bariatric Surgery in Adolescents: To Do or Not to Do? CHILDREN (BASEL, SWITZERLAND) 2021; 8:453. [PMID: 34072065 PMCID: PMC8204230 DOI: 10.3390/children8060453] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/04/2021] [Accepted: 05/25/2021] [Indexed: 01/19/2023]
Abstract
Pediatric obesity is a multifaceted disease that can impact physical and mental health. It is a complex condition that interweaves biological, developmental, environmental, behavioral, and genetic factors. In most cases lifestyle and behavioral modification as well as medical treatment led to poor short-term weight reduction and long-term failure. Thus, bariatric surgery should be considered in adolescents with moderate to severe obesity who have previously participated in lifestyle interventions with unsuccessful outcomes. In particular, laparoscopic sleeve gastrectomy is considered the most commonly performed bariatric surgery worldwide. The procedure is safe and feasible. The efficacy of this weight loss surgical procedure has been demonstrated in pediatric age. Nevertheless, there are barriers at the patient, provider, and health system levels, to be removed. First and foremost, more efforts must be made to prevent decline in nutritional status that is frequent after bariatric surgery, and to avoid inadequate weight loss and weight regain, ensuring successful long-term treatment and allowing healthy growth. In this narrative review, we considered the rationale behind surgical treatment options, outcomes, and clinical indications in adolescents with severe obesity, focusing on LSG, nutritional management, and resolution of metabolic comorbidities.
Collapse
Affiliation(s)
- Valeria Calcaterra
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy;
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.V.); (A.B.); (G.Z.)
| | - Hellas Cena
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy; (H.C.); (D.P.)
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Gloria Pelizzo
- Pediatric Surgery Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (F.D.); (E.V.)
| | - Debora Porri
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, 27100 Pavia, Italy; (H.C.); (D.P.)
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Corrado Regalbuto
- Pediatric Unit, Fond. IRCCS Policlinico S. Matteo and University of Pavia, 27100 Pavia, Italy; (C.R.); (F.V.)
| | - Federica Vinci
- Pediatric Unit, Fond. IRCCS Policlinico S. Matteo and University of Pavia, 27100 Pavia, Italy; (C.R.); (F.V.)
| | - Francesca Destro
- Pediatric Surgery Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (F.D.); (E.V.)
| | - Elettra Vestri
- Pediatric Surgery Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (F.D.); (E.V.)
| | - Elvira Verduci
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.V.); (A.B.); (G.Z.)
- Department of Health Sciences, University of Milan, 20146 Milan, Italy
| | - Alessandra Bosetti
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.V.); (A.B.); (G.Z.)
| | - Gianvincenzo Zuccotti
- Pediatric Department, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.V.); (A.B.); (G.Z.)
- “L. Sacco” Department of Biomedical and Clinical Science, University of Milan, 20146 Milan, Italy
| | - Fatima Cody Stanford
- Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA;
| |
Collapse
|