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Nuno Lourenço Gomes - One of the best experts on this subject based on the ideXlab platform.
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Anatomical and functional results of ILM peeling vs. non-peeling in macula-off rhegmatogenous retinal detachment.
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2020Co-Authors: Keissy Sousa, Gil Calvão-santos, Jorge Costa, Luís Ferreira, Luís Mendonça, Rita Gentil, Nuno Lourenço GomesAbstract:To compare anatomical and functional results between internal limiting membrane (ILM) peeling and non-ILM peeling in macula-off rhegmatogenous retinal detachment (RRD). We completed a retrospective cohort study of patients who underwent pars plana vitrectomy (PPV) due to macula-off RRD. ILM peeling (P) versus non-ILM peeling (NP) groups were compared regarding best-corrected visual acuity (BCVA), anatomical success, endotamponade, concomitant scleral Band Placement and BCVA gain for epiretinal membranes (ERM) resubjected to PPV. Statistical significance was considered when p < 0.05. PPV was conducted in 352 patients, among which 43.5% (n = 153) were in the P group and 55.6% (n = 196) were in the NP group. Both groups had significant BCVA improvement during the study period (p < 0.001), but with no significant difference between them. Anatomical success was similar between P (84.2%) and NP (87.2%) groups. No difference was found with regard to endotamponade (p = 0.07) or concomitant scleral Band Placement (p = 0.43). The NP group developed subsequent ERM more frequently (p = 0.004), but BCVA gains for eyes requiring repeat PPV for ERM were not found (p = 0.14). Although ERM formation and greater anatomical success are reasons to support the use of ILM peeling in RRD, we did not observe any anatomical or functional difference regarding ILM peeling or functional gain with secondary ERM peeling.
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Anatomical and functional results of ILM peeling vs. non-peeling in macula-off rhegmatogenous retinal detachment
Graefe's Archive for Clinical and Experimental Ophthalmology, 2020Co-Authors: Keissy Sousa, Gil Calvão-santos, Jorge Costa, Luís Ferreira, Luís Mendonça, Rita Gentil, Nuno Lourenço GomesAbstract:Purpose To compare anatomical and functional results between internal limiting membrane (ILM) peeling and non-ILM peeling in macula-off rhegmatogenous retinal detachment (RRD). Methods We completed a retrospective cohort study of patients who underwent pars plana vitrectomy (PPV) due to macula-off RRD. ILM peeling (P) versus non-ILM peeling (NP) groups were compared regarding best-corrected visual acuity (BCVA), anatomical success, endotamponade, concomitant scleral Band Placement and BCVA gain for epiretinal membranes (ERM) resubjected to PPV. Statistical significance was considered when p
Keissy Sousa - One of the best experts on this subject based on the ideXlab platform.
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Anatomical and functional results of ILM peeling vs. non-peeling in macula-off rhegmatogenous retinal detachment.
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2020Co-Authors: Keissy Sousa, Gil Calvão-santos, Jorge Costa, Luís Ferreira, Luís Mendonça, Rita Gentil, Nuno Lourenço GomesAbstract:To compare anatomical and functional results between internal limiting membrane (ILM) peeling and non-ILM peeling in macula-off rhegmatogenous retinal detachment (RRD). We completed a retrospective cohort study of patients who underwent pars plana vitrectomy (PPV) due to macula-off RRD. ILM peeling (P) versus non-ILM peeling (NP) groups were compared regarding best-corrected visual acuity (BCVA), anatomical success, endotamponade, concomitant scleral Band Placement and BCVA gain for epiretinal membranes (ERM) resubjected to PPV. Statistical significance was considered when p < 0.05. PPV was conducted in 352 patients, among which 43.5% (n = 153) were in the P group and 55.6% (n = 196) were in the NP group. Both groups had significant BCVA improvement during the study period (p < 0.001), but with no significant difference between them. Anatomical success was similar between P (84.2%) and NP (87.2%) groups. No difference was found with regard to endotamponade (p = 0.07) or concomitant scleral Band Placement (p = 0.43). The NP group developed subsequent ERM more frequently (p = 0.004), but BCVA gains for eyes requiring repeat PPV for ERM were not found (p = 0.14). Although ERM formation and greater anatomical success are reasons to support the use of ILM peeling in RRD, we did not observe any anatomical or functional difference regarding ILM peeling or functional gain with secondary ERM peeling.
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Anatomical and functional results of ILM peeling vs. non-peeling in macula-off rhegmatogenous retinal detachment
Graefe's Archive for Clinical and Experimental Ophthalmology, 2020Co-Authors: Keissy Sousa, Gil Calvão-santos, Jorge Costa, Luís Ferreira, Luís Mendonça, Rita Gentil, Nuno Lourenço GomesAbstract:Purpose To compare anatomical and functional results between internal limiting membrane (ILM) peeling and non-ILM peeling in macula-off rhegmatogenous retinal detachment (RRD). Methods We completed a retrospective cohort study of patients who underwent pars plana vitrectomy (PPV) due to macula-off RRD. ILM peeling (P) versus non-ILM peeling (NP) groups were compared regarding best-corrected visual acuity (BCVA), anatomical success, endotamponade, concomitant scleral Band Placement and BCVA gain for epiretinal membranes (ERM) resubjected to PPV. Statistical significance was considered when p
H F Schnier - One of the best experts on this subject based on the ideXlab platform.
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yield response of wetland rice to Band Placement of urea solution in various soils in the tropics
Fertilizer Research, 1993Co-Authors: H F Schnier, S K De Datta, A M Fagi, M Eaqub, Faruque Ahmed, R Tejasarwana, A MazidAbstract:Alternative N-fertilizer management practices are needed to increase productivity and the N-use efficiency of flooded rice (Oryza sativa L.). Seven field experiments were conducted at various sites in Bangladesh and Indonesia to evaluate the effect of time and method of fertilizer-N application on grain yield in transplanted rice. Conventional fertilizer application was compared with Band Placement of liquid urea using a mechanical push-type injector and point Placement of urea supergranules. With Band Placement, grain yields were up to 38 and 55% higher than with researchers' and farmers' practices, respectively, and similar to those with point Placement of urea supergranules.
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Nitrogen-15 balance in transplanted and direct-seeded flooded rice as affected by different methods of urea application
Biology and Fertility of Soils, 1990Co-Authors: H F Schnier, S K De Datta, E P Marqueses, M. Dingkuhn, J E FaroniloAbstract:Alternative N-fertilizer management practices are needed to increase productivity and the N-use efficiency of flooded rice ( Oryza sativa L.). In the 1987 dry season, a field study using ^15N-labeled urea evaluated the effect of the time and method of fertilizer-N application on grain yield and N-use efficiency in transplanted and direct-seeded flooded rice. Conventional fertilizer application (broadcasting and incorporation) was compared with Band Placement of liquid urea and point Placement of urea supergranules. With Band or point Placement, the grain yields were significantly greater, and the partial pressure of NH_3 (pNH_3) in the floodwater was significantly reduced. In the transplanted rice, conventional fertilizer-N application gave a 64% total ^15N recovery and 38% crop (grain and straw) recovery. Band Placement of liquid urea N resulted in 92% total and 73% crop recovery. In the direct-seeded flooded rice, a conventional N application gave 72% total and 42% crop recovery; Band Placement, 98% total and 73% crop recovery; and urea supergranule point Placement, 97% total and 75% crop recovery.
Paul E Obrien - One of the best experts on this subject based on the ideXlab platform.
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selecting the optimal patient for lap Band Placement
American Journal of Surgery, 2002Co-Authors: John Dixon, Paul E ObrienAbstract:Optimal patient selection for laparoscopic adjustable gastric Banding with the LAP-Band (INAMED Health, Santa Barbara, CA) enables maximization of results for patients most suited to the procedure and avoidance of unsatisfactory outcomes for inappropriate candidates. We have investigated potential predictors of outcomes in our patients to look for associations with weight loss. We have also reviewed published data for additional predictors. This analysis has revealed a number of conditions associated with a significantly lower percent excess weight loss (%EWL) than experienced in the overall group. These include increasing age, increasing body mass index (BMI), hyperinsulinemia, insulin resistance, type 2 diabetes, and polycystic ovary syndrome. There was also less weight loss if the SF-36 quality-of-life measure showed a poor physical activity score, high pain score, or poor general health score. However, in all these conditions, the effect was small in comparison with the benefits achieved by these patients, and was judged insufficient to preclude this approach to treatment of their obesity. A number of conditions were found to have no relation to weight loss after LAP-Band Placement. These included sex, presence of mental illness, most comorbidities except those linked to insulin resistance, previous bariatric surgery, and sweet-eating behavior. The value of psychologic assessment to predict outcomes could not be established. The superobese (BMI >50) achieved a lower %EWL at 1 year after LAP-Band Placement compared with those with BMI <50, but there were no differences at the 2-, 3-, and 4-year follow-ups.
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patient management after lap Band Placement
American Journal of Surgery, 2002Co-Authors: Franco Favretti, Paul E Obrien, John DixonAbstract:Abstract Severe obesity is a chronic disease requiring continuing care. Optimal outcomes of laparoscopic adjustable gastric Banding using the LAP-Band (INAMED Health, Santa Barbara, CA) depend on accurate Placement of the Band and excellent postPlacement care, which requires a long-term commitment from both the patient and the bariatric surgical team. Adjustability is a key feature of the LAP-Band system, and knowing when and how much to adjust requires careful judgment. Two methods of approaching the art of adjustment are described: the office adjustment and the radiologic adjustment. A properly placed and adjusted Band produces prolonged satiety after a small meal, facilitating a major reduction in dietary intake leading to weight loss. Healthy food choices, increased activity and exercise, and the behavioral changes necessary to achieve these are essential elements of all weight loss programs. The LAP-Band program is no exception. Follow-up requires monitoring of the comorbidities of obesity and metabolic and nutritional status. Communication and collaboration with the patient’s primary care provider are important. All of the elements above are necessary to provide the comprehensive care that contributes to optimal patient outcomes.
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changes in comorbidities and improvements in quality of life after lap Band Placement
American Journal of Surgery, 2002Co-Authors: John Dixon, Paul E ObrienAbstract:Abstract Possibly the most important outcomes of bariatric surgery involve changes in obesity-related illness, quality of life (QOL), and psychologic well-being. Dramatic improvement or resolution of serious medical comorbidity accompanies the weight loss following laparoscopic adjustable gastric Banding with the LAP-Band (INAMED Health, Santa Barbara, CA). There are major improvements in the conditions of the metabolic syndrome, which is characterized by impaired glucose tolerance, dyslipidemia, and hypertension. Improvement in insulin sensitivity and pancreatic beta-cell function associated with weight loss induces remission in the majority of type 2 diabetics and reduces the risk of others developing type 2 diabetes. Improvement in dyslipidemia is characterized by raised high-density lipoprotein cholesterol and lower triglyceride concentrations. Together with lower blood pressure, these changes provide a substantial reduction in cardiovascular risk. Other medical conditions caused or aggravated by obesity are also significantly improved, including sleep apnea, daytime sleepiness, asthma, and gastroesophageal reflux. Weight loss is associated with improved fertility and more favorable pregnancy outcomes. All aspects of QOL improve substantially, especially physical disability, and post–weight-loss QOL measures approximate those of the general population. There are also major improvements in body image and reduction in depressive illness. These changes provide perhaps the most compelling data regarding the value of LAP-Band surgery and underlie the great satisfaction experienced by patients.
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sweet eating is not a predictor of outcome after lap Band Placement can we finally bury the myth
Obesity Surgery, 2002Co-Authors: Steven M Hudson, John Dixon, Paul E ObrienAbstract:BACKGROUND: It is common belief that sweet eaters will do poorly after gastric restrictive surgery. There is scant evidence for this and significant evidence that sweet eating behavior is not predictive of weight outcome. Preoperative and current sweet eating behavior was assessed in subjects who have had Lap-Band surgery, to find if this influenced weight outcomes. METHOD: 200 unselected patients who had Bands inserted for > 1 year completed a questionaire regarding preoperative sweet eating behavior. The last 100 patients also reported current sweet eating behavior. Sweet eating was scored using a standard dietary questionnaire. RESULTS: Mean +/- SD % excess weight loss at 1 year (% EWL1) for the 100 with the highest preoperative sweet eating scores (SES) was 47.1 +/- 16% compared with a loss of 48.2 +/- 16% by those with the lowest SES (P = 0.64). Analysis showed no significant linear or non-linear correlation between the SES and the % EWL. For the highest quintile of SES, the EWL1 was 47.3 +/- 14% and for the lowest was 46.1 +/- 16% (NS). Sweet eaters were younger (r = -0.21, P = 0.003) and had higher fasting insulin concentrations (r = -0.18, P = 0.03). Preoperative SES had no influence on % EWL1 after controlling for factors known to influence weight loss. % EWL at 2 years (n = 130) and 3 years (n = 88) were not different for sweet eaters and non-sweet eaters. Current sweet eating tendency (n = 100) also had no impact on % EWL. CONCLUSION: Sweet eaters do not have less favorable weight outcomes following Lap-Band surgery. Our study confirms the findings of two other major studies. Sweet eating behavior should not be used as a preoperative selection criterion for bariatric surgery.
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quality of life after lap Band Placement influence of time weight loss and comorbidities
Obesity Research, 2001Co-Authors: John Dixon, Maureen Elizabeth Dixon, Paul E ObrienAbstract:Objective: To assess the quality of life (QOL) in severely obese subjects before and after Lap-Band gastric restrictive surgery and identify factors that may influence change. Research Methods and Procedures: All patients, over a 3-year period, attending for preoperative assessment (n = 459) or annual review after surgery (n = 641) have completed the Short Form-36 (SF-36) health survey. Eight domain and physical component summary (PCS) and mental component summary (MCS) scores were calculated. Scores were analyzed in groups based on time after surgery and compared with community normal (CN) values. Paired preoperative and 1-year scores (n = 218) data were used to find predictors of QOL change. Results: All preoperative mean scores (n = 459) were lower than CN values, with greater impairment in the PCS (36.8 ± 9.5 vs. CN: 51.3 ± 8.3, p < 0.001) than in the MCS (45.7 ± 8.2 vs. CN: 48.8 ± 9.5, p < 0.001) scores. After 1 year, scores were closer to CN scores (PCS: 52.4 ± 8.2 and MCS: 48.4 ± 7.7), and these remained closer for 4 years. Preoperative obesity comorbidity, especially physical disability, was the best predictor of poor preoperative SF-36 scores and of improvement in scores at 1 year. The percentage of excess weight loss at 1 year (46 ± 16%) was of little predictive value of improved QOL. Discussion: Severely obese subjects have poor health-related QOL as measured by the SF-36 health survey. Lap-Band surgery for this group has provided a dramatic and sustained improvement in all measures of the SF-36. Improvement is greater in those with greater preoperative disability, and the extent of weight loss is not a good predictor of improved QOL.
J E Faronilo - One of the best experts on this subject based on the ideXlab platform.
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Nitrogen-15 balance in transplanted and direct-seeded flooded rice as affected by different methods of urea application
Biology and Fertility of Soils, 1990Co-Authors: H F Schnier, S K De Datta, E P Marqueses, M. Dingkuhn, J E FaroniloAbstract:Alternative N-fertilizer management practices are needed to increase productivity and the N-use efficiency of flooded rice ( Oryza sativa L.). In the 1987 dry season, a field study using ^15N-labeled urea evaluated the effect of the time and method of fertilizer-N application on grain yield and N-use efficiency in transplanted and direct-seeded flooded rice. Conventional fertilizer application (broadcasting and incorporation) was compared with Band Placement of liquid urea and point Placement of urea supergranules. With Band or point Placement, the grain yields were significantly greater, and the partial pressure of NH_3 (pNH_3) in the floodwater was significantly reduced. In the transplanted rice, conventional fertilizer-N application gave a 64% total ^15N recovery and 38% crop (grain and straw) recovery. Band Placement of liquid urea N resulted in 92% total and 73% crop recovery. In the direct-seeded flooded rice, a conventional N application gave 72% total and 42% crop recovery; Band Placement, 98% total and 73% crop recovery; and urea supergranule point Placement, 97% total and 75% crop recovery.