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1.
Surg Endosc ; 33(5): 1459-1464, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30203204

RESUMEN

BACKGROUND: The safety of performing a one-stage revision from laparoscopic adjustable gastric banding (LAGB) to laparoscopic Roux-en-Y gastric bypass (LRYGB) has been questioned. The objective of this study was to compare safety and outcomes of one-stage versus two-stage revisional LRYGB performed after failed LAGB. METHODS: A retrospective analysis of all patients undergoing revisional LRYGB after failed LAGB between January 2007 and March 2017 was performed. Patients undergoing one- and two-stage revisions were compared. The primary outcome assessed was the early complication rate, while secondary outcomes included late complications, weight loss, and improvement of comorbidities. RESULTS: During the study period, 161 revisional LRYGB's were performed, including 121 one-stage and 40 two-stage procedures. Baseline demographic data, BMI and presence of comorbidities were similar between the groups. In patients undergoing a two-stage procedure, band slippage, port infection, and erosion were more commonly cited as indications for revision. Similar early complication rates were demonstrated between the groups. However, late complications were more common in the two-stage group (20.0% vs. 7.4%, P = 0.03), including higher rates of gastro-gastric fistula (5.0% vs. 0%, P = 0.01) and anemia (10.0% vs. 1.1%, P = 0.02). Three-fourths of the cohort had a follow-up of more than 6 months, and the two groups demonstrated similar weight loss results and improvement/resolution of comorbidities. CONCLUSION: The performance of one-stage revisional LRYGB after failed LAGB seems to be a safe procedure, with noninferior outcomes when compared to a two-stage revisional procedure. It is a valid option, except in cases of mechanical and infectious band complications.


Asunto(s)
Derivación Gástrica/métodos , Gastroplastia/efectos adversos , Laparoscopía , Adolescente , Adulto , Anciano , Anemia/etiología , Femenino , Fístula Gástrica/etiología , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Estudios Retrospectivos , Adulto Joven
2.
J Surg Res ; 225: 90-94, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29605040

RESUMEN

BACKGROUND: Traditionally, patients treated conservatively for periappendiceal abscess or phlegmon would subsequently undergo interval appendectomy (IA); however, recent evidence has shed doubt on the necessity of this procedure. This study aimed to assess the outcomes of patients who underwent IA, in comparison with those operated acutely for appendicitis. MATERIALS AND METHODS: A retrospective analysis identified patients who underwent IA between 2000 and 2016. Their course and outcomes were compared with those of our previously published cohort of patients who underwent appendectomy for acute appendicitis. RESULTS: During the study period, 106 patients underwent IA. Their mean age was 39.7 ± 16.2 y, and 60.4% were females. In their index admission, 75.5% presented with abscesses. IA was performed successfully in all patients, and no patient required colectomy. Pathology demonstrated neoplastic lesions in 6/106, but only one was malignant. IA patients were compared with a cohort of 1649 acute appendectomy patients. This group was significantly younger (33.7 ± 13.3 y). Operation time was comparable between the groups (46.0 ± 26.2 versus 42.7 ± 20.9 min, respectively, P = 0.33). In the IA group, significantly more laparoscopic operations were performed (100% versus 93.9%), but with a higher conversion rate to open (1.9% versus 0.13%, P < 0.001). Although the overall complication rate was comparable, more intraoperative complications (2.8% versus 0.3%, P < 0.001) and deep/organ-space surgical site infections (surgical site infection; 4.7% versus 1.2%, P = 0.003) were reported in the IA group. CONCLUSIONS: IA can be a challenging procedure and should not be performed on a routine basis. However, neoplasia must be actively ruled out, particularly in the older age group.


Asunto(s)
Absceso/terapia , Apendicectomía/métodos , Neoplasias del Apéndice/epidemiología , Apendicitis/terapia , Celulitis (Flemón)/terapia , Tratamiento Conservador/métodos , Absceso/etiología , Adulto , Factores de Edad , Apendicectomía/efectos adversos , Apendicectomía/estadística & datos numéricos , Neoplasias del Apéndice/diagnóstico , Neoplasias del Apéndice/patología , Apendicitis/complicaciones , Apéndice/patología , Apéndice/cirugía , Celulitis (Flemón)/etiología , Tratamiento Conservador/efectos adversos , Conversión a Cirugía Abierta/estadística & datos numéricos , Femenino , Humanos , Complicaciones Intraoperatorias/epidemiología , Complicaciones Intraoperatorias/etiología , Laparoscopía/efectos adversos , Laparoscopía/métodos , Laparoscopía/estadística & datos numéricos , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Tempo Operativo , Estudios Retrospectivos , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Resultado del Tratamiento , Adulto Joven
3.
Surg Endosc ; 27(1): 240-5, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22752283

RESUMEN

BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) remains under scrutiny as a stand-alone bariatric procedure. The most feared complication after LSG is staple line leak. METHODS: Eight bariatric centers in Israel participated in this study. A retrospective analysis was performed by querying all the LSG cases performed between June 2006 and June 2010. The data collected included patient demographics, anthropometrics, and operative and perioperative parameters. RESULTS: Among the 2,834 patients who underwent LSG, 44 (1.5%) with gastric leaks were identified. Of these 44 patients, 30 (68%) were women. The patients had a mean age of 41.5 years and a body mass index (BMI) of 45.4 kg/m(2). Intraoperative leak tests and routine postoperative swallow studies were performed with 33 patients, and all but one patient (3%) failed to detect the leaks. Leaks were diagnosed at a median of 7 days postoperatively: early (0-2 days) in nine cases (20%), intermediately (3-14 days) in 32 cases (73%), and late (>14 days) in three cases (7%). For 38 patients (86%), there was clinical suspicion, later confirmed by imaging or operative findings. Computed tomography, swallow studies, and methylene blue tests were performed for 37, 21, and 15 patients, respectively, and the results were positive, respectively, for 31 (84%), 11 (50%), and 9 (60%) of these patients. Reoperation was performed for 27 of the patients (61%). Other treatment methods included percutaneous drainage (n = 28, 63.6%), endoscopic placement of stents (n = 11, 25%), clips (n = 1, 2.3%), and fibrin glue (n = 1, 2.3%). In 33 of the patients (75%), the leak site was found in the upper sleeve near the gastroesophageal junction. The median time to leak closure was 40 days (range, 2-270 days), and the overall leak-related mortality rate was 0.14% (4/2,834). CONCLUSION: Gastric leak is the most common cause of major morbidity and mortality after LSG. Routine tests to rule out leaks seem to be superfluous. Rather, selective utilization is recommended. Management options vary, depending mainly on patient disposition. An accepted algorithm for the diagnosis and treatment of gastric leak has yet to be proposed.


Asunto(s)
Gastrectomía/efectos adversos , Gastroplastia/efectos adversos , Laparoscopía/efectos adversos , Obesidad Mórbida/cirugía , Dehiscencia de la Herida Operatoria/etiología , Adulto , Estudios de Casos y Controles , Conversión a Cirugía Abierta/estadística & datos numéricos , Femenino , Humanos , Complicaciones Intraoperatorias/etiología , Masculino , Reoperación , Estudios Retrospectivos , Dehiscencia de la Herida Operatoria/cirugía , Resultado del Tratamiento
4.
JSLS ; 16(1): 178-81, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22906352

RESUMEN

BACKGROUND: Nonbladed trocars are considered less traumatic to the abdominal wall due to the lack of fascial incision. It has been suggested that closure of the abdominal fascia may be unnecessary when such nonbladed trocars are used. CASE REPORT: We report on 2 patients who were diagnosed with trocar-site hernias 2 days after laparoscopic appendectomy performed using 11-mm nonbladed trocars. CONCLUSION: Although rare, trocar-site hernias after laparoscopic surgery with nonbladed trocars remain a cause of postoperative morbidity and require prompt intervention. Therefore, this report underscores the significance of performing meticulous closure of all trocar sites that are 10mm.


Asunto(s)
Apendicectomía/efectos adversos , Hernia Abdominal/etiología , Anciano , Apendicectomía/instrumentación , Apendicectomía/métodos , Diseño de Equipo , Femenino , Hernia Abdominal/complicaciones , Hernia Abdominal/diagnóstico por imagen , Hernia Abdominal/cirugía , Humanos , Laparoscopía , Persona de Mediana Edad , Tomografía Computarizada por Rayos X
5.
Nutrients ; 14(13)2022 Jun 23.
Artículo en Inglés | MEDLINE | ID: mdl-35807778

RESUMEN

One Anastomosis Gastric Bypass (OAGB) and Sleeve Gastrectomy (SG) are the most common bariatric procedures performed worldwide. SG is a restrictive procedure whereas OAGB involves malabsorption as well, supposing a risk of deficiency development post OAGB. The aim of the study was to compare nutritional deficiencies and metabolic markers one year after the procedures, while adhering to the current protocols. Retrospective analysis was performed for data on 60 adults undergoing primary OAGB, compared to 60 undergoing primary SG. Mean pre-surgery BMI for SG was 42.7 kg/m2 and 43.3 kg/m2 for OAGB. A multidisciplinary team followed up with the patients at least 3 times during the first year. Mean weight loss was 39.0 kg for SG and 44.1 kg for OAGB. The OAGB group presented a significantly sharper decline in T.Chol and a trend for sharper LDL decrease; a higher increase in folate and a trend for a greater decrease in albumin and hemoglobin were observed in OAGB. For vitamin B12, D, iron and ferritin, no difference was observed between the treatment groups, although there were some in-group differences. Nutritional recommendations and adopted supplement plans minimize the risk of deficiencies and result in improvement in metabolic biomarkers one year after OAGB, which was comparable to SG.


Asunto(s)
Derivación Gástrica , Obesidad Mórbida , Adulto , Ferritinas , Gastrectomía/efectos adversos , Gastrectomía/métodos , Derivación Gástrica/efectos adversos , Derivación Gástrica/métodos , Humanos , Obesidad Mórbida/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Pérdida de Peso
6.
Metabolites ; 12(5)2022 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-35629934

RESUMEN

We report the long-term response to bariatric surgery in a singular family of four adolescents with severe obesity (41-82 kg/m2), homozygous for the C271R loss-of-function mutation in the melanocortin 4 receptor (MC4R), and three adults heterozygous for the same mutation. All patients had similar sociodemographic backgrounds and were followed for an average of 7 years. Three of the four homozygous patients regained their full weight (42-77 kg/m2), while the fourth lost weight but remained obese with a body mass index of 60 kg/m2. Weight regain was associated with relapse of most comorbidities, yet hyperglycemia did not relapse or was delayed. A1c levels were reduced in homozygous and heterozygous patients. The long-term follow-up data on this very unique genetic setting show that weight loss and amelioration of obesity following bariatric surgery require active MC4R signaling, while the improvement in glycemia is in part independent of weight loss. The study validates animal models and demonstrates the importance of biological signaling in the regulation of weight, even after bariatric surgery.

7.
Obes Surg ; 31(2): 813-819, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33047293

RESUMEN

PURPOSE: The over-the-scope clip (OTSC) enables non-surgical management of gastrointestinal defects. The aim of this study was to report our experience with OTSC for patients with staple line leaks following laparoscopic sleeve gastrectomy (LSG). MATERIALS AND METHODS: A prospectively maintained IRB-approved institutional database was queried for all patients treated with OTSC for staple line leaks following LSG from 2010 to 2018. Primary outcome was complete resolution of leak following OTSC. Secondary outcome was the number of additional procedures needed following OTSC. RESULTS: Twenty-six patients (13 males, 13 females) were treated with OTSC for staple line leaks following LSG. The median age was 35 years (range 18-62), and mean body mass index was 44 kg/m2. The median time from index operation to leak diagnosis and from leak diagnosis to OTSC was 18 days (range 2-118), and 6 days (range 1-120), respectively. The initial endoscopic treatment was OTSC (n = 19), stent (n = 5), clip (n = 1), and clip and biologic glue (n = 1). OTSC alone led to final resolution of leak in 8 patients (31%) within 43 days of clip deployment (range 5-87). Five leaks resolved after a combination of OTSC and stent (19%) and one leak (4%) resolved after endoscopic suturing following a failed OTSC. Eleven patients (42%) failed endoscopic management and underwent total gastrectomy and esophagojejunostomy. One mortality (4%) was noted. The number of additional endoscopic sessions ranged from 1 to 10 (median 2). CONCLUSIONS: OTSC carries a low success rate for controlling staple line leaks following LSG.


Asunto(s)
Laparoscopía , Obesidad Mórbida , Adolescente , Adulto , Fuga Anastomótica/etiología , Fuga Anastomótica/cirugía , Femenino , Gastrectomía/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/cirugía , Estudios Retrospectivos , Grapado Quirúrgico/efectos adversos , Suturas , Resultado del Tratamiento , Adulto Joven
8.
J Clin Med ; 10(5)2021 Mar 09.
Artículo en Inglés | MEDLINE | ID: mdl-33803285

RESUMEN

Bariatric surgeries may lead to an improvement in metabolic fatty liver disease, and a reduction in the levels of the hepatic enzyme Alanine Aminotransferase (ALT). We compared the effects of Sleeve Gastrectomy (SG), Roux en Y Gastric Bypass (RYGB) and One Anastomosis Gastric Bypass (OAGB) on the levels of ALT by analysis of two-year follow-up data from 4980 patients in the Israeli Bariatric Registry that included laboratory tests and demographic information. Pre-operative characteristics of patients, and particularly levels of liver enzymes, were similar across surgery types. Regression modeling and retrospective matching showed that SG was superior to RYGB and OAGB in reducing ALT levels, and in reducing the fraction of patients with abnormally high ALT levels. Two-year post-surgery, an increase in ALT levels from normal to abnormal levels was observed in 5% of SG patients, and in 18% and 23% of RYGB and OAGB patients. In conclusion, SG leads to a greater reduction in ALT levels compared with bypass surgeries and a lower incidence of post-surgical elevation of ALT levels. Further studies are required to identify the cause for the rise in liver enzymes, and to determine whether ALT levels correlate with liver pathology especially following bariatric surgery.

9.
Obes Surg ; 31(7): 2927-2934, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33765292

RESUMEN

INTRODUCTION: Laparoscopic sleeve gastrectomy (LSG) is the most popular bariatric procedure performed worldwide. However, many patients undergo secondary surgery due to either weight-related and complication-related reasons or both. Conversional options vary with one-anastomosis gastric bypass (OAGB) and Roux-n-Y gastric bypass (RYGB) being the most common. The aim of the study was to assess the safety and efficacy of converting failed LSG to either OAGB or RYGB, and compare weight-related results and post-conversion complications. METHODS: Retrospective review of hospital records of patients who underwent conversion from LSG to either RYGB or OAGB due to insufficient weight loss or weight regain in 7 bariatric centers between 2013 and 2019. Data retrieved included demographics, anthropometrics, comorbidities, indication for conversion, conversion type, complications, and weight loss. RESULTS: During the study period, 396 patients were included in the study. Eighty-four (21%) patients were lost to follow-up. RYGB and OAGB were performed in 119 and 144 patients, respectively. Mean age and body mass index (BMI) at revision were 44.2 years (range 19-72) and 40.6 ± 5.9 kg/m2 (range 35-71), respectively. Of these, 191 (73%) were female. Percent total body weight loss (%TWL) was 16% ± 1% for the RYGB group vs. 23% ± 12% for the OAGB group (p = 0.0007) at a median follow-up of 29 months (range 7-78 months) following conversion. Gastroesophageal reflux disease (GERD) was significantly higher 1 year following conversion to OAGB vs. RYGB occurring in 25 (17.4%) and 9 (7.6%) patients, respectively (p = 0.018). CONCLUSIONS: Conversion of LSG to OAGB, compared to RYGB, results in increased weight loss but a higher rate of GERD and potential nutritional deficiencies.


Asunto(s)
Derivación Gástrica , Laparoscopía , Obesidad Mórbida , Adulto , Anciano , Femenino , Gastrectomía , Humanos , Persona de Mediana Edad , Obesidad Mórbida/cirugía , Reoperación , Estudios Retrospectivos , Resultado del Tratamiento , Adulto Joven
10.
J Clin Med ; 10(12)2021 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-34203100

RESUMEN

Patients that undergo bariatric surgery experience weight loss and a reduction in the plasma levels of the hepatic enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST). We used the Israeli national bariatric registry, which includes demographic, clinical, and biochemical data on 19,403 patients, of which 1335 patients had two-year follow-up data on ALT, AST, A1C, and BMI, to test the dependence of the reduction in the levels of ALT and AST on weight loss. The data were analyzed using regression models, retrospective matching, and time course analyses. Changes in liver enzymes did not correlate with change in BMI, and linear regression models did not demonstrate that the change in ALT and AST values were dependent on pre-operative levels of BMI or the extent of weight loss. ALT and AST levels were reduced two years after surgery compared with a cohort of retrospectively matched patients for ethnicity, sex, age, BMI, and A1C. Finally, patients who regained weight displayed a reduction in levels of liver enzymes. Our results suggest that bariatric surgery affects AST and ALT levels via weight loss dependent and independent mechanisms. Mechanistic studies that will identify the nature of this effect and the clinical relevance of ALT and AST levels to the post-bariatric liver function are warranted.

11.
Isr J Health Policy Res ; 9(1): 59, 2020 10 30.
Artículo en Inglés | MEDLINE | ID: mdl-33126921

RESUMEN

INTRODUCTION: Israel ranks very high globally in performing bariatric surgery (BS) per capita. In the first phase of the COVID-19 pandemic the bariatric surgeons' community faced many concerns and challenges, especially in light of a decree issued by the Ministry of Health (MOH) on March 22nd, to ban all elective surgery in public hospitals. The aim of this study is to portray the practices and attitudes of Israeli bariatric surgeons in the first phase of the pandemic. METHODS: Anonymous web-based questionnaire sent to all active bariatric surgeons in Israel. Statistical analysis was performed using SAS software package. RESULTS: 53 out of 63 (84%) active surgeons responded to the survey. 18% practice in the public sector only, 4% in the private sector only and 78% in both sectors. 76% practice BS for more than 10 years and 68% perform more than 100 procedures a year. Almost all the surgeons (98%) experienced a tremendous decrease in operations. Nevertheless, there were substantial differences by sectors. In the public sector, 86% of the surgeons ceased to operate while 14% did not comply with the government's decree. In the public sector 69% of the surgeons were instructed by the administrators to stop operating. The majority of surgeons who continued to operate (77%) changed nothing in the indications or contra-indications for surgery. Among the surgeons who opted to refrain from operating on special sub-groups, the most frequent reasons were pulmonary disease (82%), age above 60 (64%), Ischemic heart disease (55%) and living in heavily affected communities. Roughly only half (57%) of the surgeons implemented changes in informed consent and operating room (OR) measures, contrary to guidelines and recommendations by leading professional societies. When asked about future conditions for reestablishing elective procedures, the reply frequencies were as follows: no special measures - 40%; PCR negativity - 27%; IgG positivity - 15%; waiting until the end of the pandemic- 9%. CONCLUSIONS: We showed in this nation-wide survey that the variance between surgeons, regarding present and future reactions to the COVID-19 pandemic, is high. There were substantial differences between the private and the public sectors. Although the instructions given by the MOH for the public sector were quite clear, the compliance by surgeons and administrators was far from complete. The administrators in the public sector, but more so in the private sector were ambiguous in instructing staff, leading surgeons to a more "personal non-structured" practice in the first phase of the pandemic. These facts must be considered by regulators, administrators and surgeons when planning for reestablishing elective BS or in case a second wave of the pandemic is on its way.


Asunto(s)
Actitud , Bariatria , Infecciones por Coronavirus , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Pandemias , Neumonía Viral , Pautas de la Práctica en Medicina , Cirujanos/estadística & datos numéricos , Adulto , Betacoronavirus , COVID-19 , Femenino , Humanos , Israel , Masculino , Persona de Mediana Edad , Sector Privado , Sector Público , SARS-CoV-2 , Encuestas y Cuestionarios
12.
Obes Surg ; 30(1): 296-303, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31478132

RESUMEN

OBJECTIVE: Most published work on bariatric surgery (BS) in adolescents describes outcomes after laparoscopic adjustable gastric banding (LAGB) or Roux-en-Y gastric bypass. We compared the efficacy of LAGB and laparoscopic sleeve gastrectomy (LSG) in adolescents. METHODS: A National Bariatric Registry was queried for adolescents who underwent BS between June 2013 and December 2015. We collected data on weight and height at baseline and 1-year following surgery, subsequent hospitalizations, interventions, and mortality, which were compared at 30 days post-surgery and until last follow-up (maximum 4.2 years post-surgery). Mortality and hospitalization data were extracted from national databases. RESULTS: Two hundred fifty-nine adolescents (60% females) aged 12-19 years were included. Mean age and body mass index (BMI) were 17.5 ± 1.2 years and 45.1 ± 5.0 kg/m2, respectively. LSG (n = 227, 87.6%) and LAGB (n = 32, 12.4%) were the most common procedures performed. LSG group achieved greater average at 1 year BMI loss compared to LAGB group (15.4 ± 4.7 kg/m2 vs. 10.3 ± 5.1 kg/m2 respectively; p = 0.0001) and higher rate with BMI < 30 kg/m2 1 year post-surgery (57.7% (n = 131) vs. 25% (n = 8), respectively; p = 0.0005). Males who underwent LSG reduced BMI more than their female counterparts (p = 0.0001), LSG was the strongest independent predictor for BMI < 30 after 1 year (OR = 4.1; 95% CI 1.7-9.9) followed by age (OR = 1.3; 95% CI1.0-1.6). No mortality was observed. Postoperative hospitalizations between the two groups did not differ (hazard ratio 2.4; 95% CI 0.7-7.9; p = 0.1). CONCLUSION: Compared to LAGB, LSG is superior regarding weight loss with a similar risk of short- and long-term hospitalizations, complications, and interventional procedures. Males lose more weight following LSG.


Asunto(s)
Gastrectomía , Gastroplastia , Laparoscopía/métodos , Obesidad Mórbida/cirugía , Obesidad Infantil/cirugía , Adolescente , Índice de Masa Corporal , Niño , Bases de Datos Factuales , Femenino , Gastrectomía/efectos adversos , Gastrectomía/métodos , Gastrectomía/estadística & datos numéricos , Gastroplastia/efectos adversos , Gastroplastia/métodos , Gastroplastia/estadística & datos numéricos , Humanos , Israel/epidemiología , Laparoscopía/efectos adversos , Laparoscopía/estadística & datos numéricos , Tiempo de Internación , Masculino , Obesidad Mórbida/epidemiología , Obesidad Infantil/epidemiología , Sistema de Registros , Estudios Retrospectivos , Resultado del Tratamiento , Pérdida de Peso/fisiología , Adulto Joven
13.
Obes Surg ; 19(3): 293-8, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19089519

RESUMEN

BACKGROUND: The aim of this study is to clarify whether laparoscopic sleeve gastrectomy (LSG) to treat morbid obesity causes changes in gastric emptying. METHODS: Gastric emptying scintigraphy was performed before and 3 months after LSG, in 21 consecutive morbidly obese patients. After an overnight fast, subjects consumed a standard semi-solid meal, to which 0.5 mCi Tc99-labeled sulfur colloid had been added. The meal was consumed within 10 min. Scintigraphic imaging was performed with a gamma camera immediately after the completion of the meal as well as after 30, 60, 120, 180, and 240 min. Quantitative and qualitative analysis was performed by drawing a region of interest (ROI) enclosing the stomach on the anterior and the posterior images. Time 0 was considered the time of meal completion (all the ingested activity) and was defined as 100% retention. The same ROI was used on all consecutive images of the same projection for the same patient. The geometric mean of the anterior and the posterior counts for each time point is calculated and corrected for Tc(99m) decay. Gastric emptying curves were constructed. T 1/2 is the time interval between completion of the meal and the point at which half of the meal (by radioactivity counts) has left the stomach. Retention is expressed as the percent remaining in the stomach at each time point (half, 1, 2, 3, 4 h). RESULTS: The mean T 1/2 raw data was 62.39+/-19.83 and 56.79+/-18.72 min (p=0.36, t=-0.92, NS) before and 3 months after LSG, respectively. The T 1/2 linear was 103.64+/-9.82 and 106.92+/-14.55, (p=0.43, t=-0.43, NS), and the linear fit slope 0.48+/-0.04 and 0.47+/-0.05 (p=0.48, t=0.7, NS). CONCLUSIONS: LSG with antrum preservation as performed in this series has no effect on gastric emptying.


Asunto(s)
Gastrectomía/métodos , Vaciamiento Gástrico/fisiología , Laparoscopía , Obesidad Mórbida/fisiopatología , Obesidad Mórbida/cirugía , Adulto , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/diagnóstico por imagen , Estudios Prospectivos , Antro Pilórico , Cintigrafía , Resultado del Tratamiento , Adulto Joven
14.
Obes Surg ; 29(6): 1704-1708, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30796613

RESUMEN

BACKGROUND: Controversy exists regarding the clinical utility of routine preoperative upper gastrointestinal (GI) fluoroscopy in morbid obese patients undergoing laparoscopic sleeve gastrectomy (LSG). The aim of our study was to determine the efficacy of these studies in detecting hiatal hernias (HH). METHODS: The institution's prospectively maintained, IRB-approved database was retrospectively queried to identify all consecutive patients who underwent LSG between 2011 and 2017. All patients underwent routine preoperative upper GI fluoroscopy. Reports from all imaging studies were retrospectively reviewed and compared to the presence of an intraoperative HH. RESULTS: During the study period, a total of 1810 patients (854 males, 956 females) underwent LSG at our institution. Mean age was 40.95 ± 13 years (range 11-75), and mean BMI was 42.8 ± 5 kg/m2 (range 30-86). The overall prevalence of HH was 11.1% (201 patients). All HHs detected were repaired. Considering the intraoperative identification of HH the gold standard for diagnosis, the sensitivity and specificity of preoperative UGI fluoroscopy for HH detection were 32% (66/201) and 94% (1512/1609), respectively. The median operative time was significantly longer when concomitant LSG and HH repair was performed compared to LSG alone (76 min vs. 55 min, p < 0.001, respectively). The foreknowledge of HH had no influence on the median operative times (77 min vs. 75 min, predicted vs. incidental, respectively, p = 1.34). HH repair did not affect the complication rate (p = 0.3). CONCLUSION: Routine preoperative upper GI fluoroscopy holds a low sensitivity for HH detection. Health policy regulators should consider omitting this exam from routine preoperative evaluation for bariatric patients.


Asunto(s)
Fluoroscopía , Gastrectomía , Hernia Hiatal/diagnóstico por imagen , Laparoscopía , Obesidad Mórbida/diagnóstico por imagen , Tracto Gastrointestinal Superior/diagnóstico por imagen , Adolescente , Adulto , Anciano , Niño , Femenino , Hernia Hiatal/complicaciones , Hernia Hiatal/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/complicaciones , Obesidad Mórbida/cirugía , Tempo Operativo , Cuidados Preoperatorios , Prevalencia , Estudios Retrospectivos , Sensibilidad y Especificidad , Resultado del Tratamiento , Adulto Joven
15.
Am J Surg ; 217(4): 745-749, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30635206

RESUMEN

BACKGROUND: The effect of age and gender on outcomes of revisional bariatric surgery has not been assessed. METHODS: A retrospective analysis of patients undergoing revision from laparoscopic adjustable gastric banding (LAGB) to laparoscopic roux en Y gastric bypass (LRYGB) between 2007 and 2017 was performed. Patients were divided according to gender and age (<50 and ≥ 50 years), and the outcomes of the subgroups were compared. RESULTS: During the study period, 161 revisional LRYGBs were performed. Postoperative percentage of total body weight loss was comparable between the subgroups. No significant difference was observed between the groups in the improvement/resolution of comorbidities. Overall early complication rates were comparable, however major postoperative bleeding was more common in older patients (6.7 vs. 0.9%, p = 0.03). More late complications were demonstrated in females when compared to males (14.3 vs. 2.0%, p = 0.02). CONCLUSIONS: Revisional LRYGB after failed LAGB yields acceptable results, regardless of patient gender and age.


Asunto(s)
Derivación Gástrica , Gastroplastia , Obesidad Mórbida/cirugía , Adulto , Femenino , Humanos , Laparoscopía , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Reoperación , Estudios Retrospectivos , Factores Sexuales
16.
Obes Surg ; 18(9): 1083-8, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18535864

RESUMEN

BACKGROUND: Aiming to clarify the mechanism of weight loss after the restrictive bariatric procedure of sleeve gastrectomy (LSG), the volumes and pressures of the stomach, of the removed part, and of the remaining sleeve were measured in 20 morbidly obese patients. METHODS: The technique used consisted of occlusion of the pylorus with a laparoscopic clamp and of the gastroesophageal junction with a special orogastric tube connected to a manometer. Instillation of methylene-blue-colored saline via the tube was continued until the intraluminal pressure increased sharply, or the inflated stomach reached 2,000 cc. After recording of measurements, LSG was performed. RESULTS: Mean volume of the entire stomach was 1,553 cc (600-2,000 cc) and that of the sleeve 129 cc (90-220 cc), i.e., 10% (4-17%) and that of the removed stomach was 795 cc (400-1,500 cc). The mean basal intragastric pressure of the whole stomach after insufflations of the abdominal cavity with CO(2) to 15 mmHg was 19 mmHg (11-26 mmHg); after occlusion and filling with saline it was 34 mmHg (21-45 mmHg). In the sleeved stomach, mean basal pressure was similar 18 mmHg (6-28 mmHg); when filled with saline, pressure rose to 43 mmHg (32-58 mmHg). The removed stomach had a mean pressure of 26 mmHg (12-47 mmHg). There were no postoperative complications and no mortality. CONCLUSIONS: The notably higher pressure in the sleeve, reflecting its markedly lesser distensibility compared to that of the whole stomach and of the removed fundus, indicates that this may be an important element in the mechanism of weight loss.


Asunto(s)
Gastrectomía , Muñón Gástrico/patología , Laparoscopía , Obesidad Mórbida/patología , Obesidad Mórbida/cirugía , Adulto , Adaptabilidad , Femenino , Muñón Gástrico/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/fisiopatología , Tamaño de los Órganos , Presión , Estudios Prospectivos , Pérdida de Peso , Adulto Joven
17.
J Laparoendosc Adv Surg Tech A ; 18(3): 373-6, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18503369

RESUMEN

BACKGROUND: Laparoscopic hernia repair has been gaining acceptance as an alternative to open repair. The aim of this study was to present the experience of a general surgery ward with laparoscopic inguinal hernia repair. MATERIALS AND METHODS: A retrospective search of all laparoscopic inguinal hernia repairs between January 1999 and December 2003 was obtained. Data, including perioperative course, postoperative complication, and long-term follow-up, was documented. RESULTS: A total of 423 hernias were repaired in 220 patients. Long-term follow-up was performed by questionnaire, clinic visit, or both in 182 of the 220 patients (82.7%). Median follow-up time was 27.5 (range, 4-61) months. Two hundred and three (92.3%) hernias were bilateral. Fifty-seven patients (25.9%) had recurrent hernias. There was no conversion to an open hernia repair. There were 10 recurrences (2.3%). Minor complications (e.g., abdominal wall hematoma, epigastric vessels injury, and urinary retention requiring catheterization) occurred in 17 (7.7%) patients. A bladder injury occurred in 1 patient (0.45%). There was no mortality. Mean postoperative stay was 1.1 days (range, 1-10). Satisfaction with the laparoscopic repair was expressed by using a scoring system of 1 to 5, with 85.2% being very satisfied (score of 4-5) and 8.2% being dissatisfied (score of 1-2). CONCLUSIONS: The laparoscopic herniorrhaphy offers a safe and effective repair with acceptable complication and recurrence rates. Good results with the total extraperitoneal technique can be achieved by general laparoscopists and not only in highly specialized hernia centers. It is especially suited for bilateral repair and for recurrent hernias.


Asunto(s)
Hernia Inguinal/cirugía , Laparoscopía , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Hospitales Universitarios , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
18.
Surg Obes Relat Dis ; 14(3): 347-353, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29306610

RESUMEN

BACKGROUND: While hypoglycemia during an oral glucose tolerance test (OGTT) has been shown to occur in a considerable portion of nonpregnant post-bariatric surgery (BS) patients, its incidence among pregnant post-BS patients evaluated for gestational diabetes has only been sparsely studied. OBJECTIVES: We investigated OGTT results and pregnancy outcomes in pregnant women who underwent 3 types of bariatric procedures before pregnancy. SETTING: A university hospital. METHODS: From medical records, data were collected on glucose measurements during a 100-g, 3-hour OGTT, as well as maternal and fetal outcomes. RESULTS: Of 119 post-BS pregnant patients included in the study, 55 underwent laparoscopic sleeve gastrectomy, 34 laparoscopic adjustable gastric banding, and 30 laparoscopic Roux-en-Y gastric bypass surgery. Hypoglycemia (<55 mg/dL) was encountered in 59 (49.6%) patients during the OGTT. Among them, the nadir plasma glucose levels occurred 2 hours after glucose ingestion in 25 (42.4%) and after 3 hours in 34 (57.6%), with a median value of 47 (44-52) mg/dL. The risk of hypoglycemia was higher among women with prior laparoscopic Roux-en-Y gastric bypass surgery (83.3%) than among those with prior laparoscopic sleeve gastrectomy (54.5%; P = .009) or laparoscopic adjustable gastric banding (11.8%; P<.0001). Time from surgery to conception was significantly shorter among women with evidence of hypoglycemia during OGTT (median 711 versus 1246 days, P = .002). Compared with patients without evidence of hypoglycemia, patients who experienced hypoglycemia had lower rates of gestational diabetes (P = .03) but higher proportions of low birth weight (P = .01) and small for gestational age infants (P = .03). CONCLUSIONS: Because hypoglycemia is common during OGTT among post-BS parturients, other diagnostic methods should be considered in this setting. The association found between hypoglycemia and poor fetal growth warrants investigation as to whether interventions to prevent hypoglycemia will improve fetal outcome.


Asunto(s)
Cirugía Bariátrica/efectos adversos , Diabetes Gestacional/etiología , Hipoglucemia/etiología , Laparoscopía/efectos adversos , Adulto , Glucemia/metabolismo , Diabetes Gestacional/diagnóstico , Femenino , Retardo del Crecimiento Fetal/etiología , Prueba de Tolerancia a la Glucosa , Humanos , Hipoglucemia/diagnóstico , Obesidad Mórbida/complicaciones , Obesidad Mórbida/cirugía , Paridad , Atención Preconceptiva , Embarazo , Resultado del Embarazo , Nacimiento Prematuro/etiología , Estudios Retrospectivos
19.
Obstet Gynecol ; 131(3): 451-456, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29420411

RESUMEN

OBJECTIVE: To examine associations of laparoscopic sleeve gastrectomy with maternal and perinatal outcomes. METHODS: We conducted a retrospective case-control study of deliveries that occurred from 2006 to 2016 at two university hospitals. The study group comprised all women who had undergone laparoscopic sleeve gastrectomy and who delivered during the study period. If a woman had more than one pregnancy during the study period, data from only her first pregnancy were used. A control group was established by matching preoperative body mass index (BMI), age, parity, delivery history, and delivery year. RESULTS: Data from 238 women were analyzed, 119 post-laparoscopic sleeve gastrectomy and 119 matched control parturients. Among the post-laparoscopic sleeve gastrectomy patients, the median preoperative BMI was 41.7 (interquartile range 39.9-44.4) and the median postoperative BMI was 28.9 (26.6-32.0). Compared with the control group, the study group had lower rates of gestational diabetes mellitus (3.4% vs 17.6%, P=.001), large-for-gestational-age neonates (1.7% vs 19.3%, P=.001), and birth weight greater than 4,000 g (0.8% vs 7.6%, P=.02) but higher proportions of small-for-gestational-age (SGA) neonates (14.3% vs 4.2%, P=.01) and low-birth-weight neonates (12.6% vs 4.2%, P=.03). Rates of gestational hypertensive disorders and prematurity were comparable between the groups. For the study group, hemoglobin levels were lower in early pregnancy (median 12.6 vs 13.2 g/dL, P=.001) and after delivery (10.5 vs 10.8 g/dL, P=.002), and a higher proportion of patients were treated with intravenous iron supplementation during pregnancy (14.3% vs 0.8%, P=.001). Cesarean delivery rates during labor were lower in the study group (10.1% vs 20.2%, P=.04). CONCLUSION: Laparoscopic sleeve gastrectomy was associated with reduced rates of gestational diabetes mellitus, excessive fetal growth, and cesarean delivery and an increased rate of SGA and low-birth-weight neonates.


Asunto(s)
Gastrectomía , Laparoscopía , Obesidad Mórbida/cirugía , Complicaciones del Embarazo/cirugía , Adulto , Estudios de Casos y Controles , Cesárea/estadística & datos numéricos , Femenino , Gastrectomía/métodos , Humanos , Recién Nacido de Bajo Peso , Recién Nacido , Recién Nacido Pequeño para la Edad Gestacional , Embarazo , Estudios Retrospectivos , Resultado del Tratamiento
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