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Abreu AA, Farah E, Nix R, Kethley D, Coble C, Wan Z, Alterio RE, Ngo F, Wadhwa A, Karagkounis G, Pogacnik JS, Wang SC, Augustine M, Yopp AC, Zeh HJ, Polanco PM. ASO Visual Abstract: Cost Analysis and Financial Implications of a Peritoneal Surface Malignancy Program in the United States. Ann Surg Oncol 2024; 31:2024. [PMID: 37980712 DOI: 10.1245/s10434-023-14580-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Affiliation(s)
- Andres A Abreu
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Emile Farah
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Robert Nix
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dustin Kethley
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Collin Coble
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhihan Wan
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rodrigo E Alterio
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Fallon Ngo
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Anupama Wadhwa
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Georgios Karagkounis
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Javier Salgado Pogacnik
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sam C Wang
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mathew Augustine
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Adam C Yopp
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Herbert J Zeh
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Patricio M Polanco
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Yuan JJ, Bangalore R, Darwish D, Moon TS, Wadhwa A. Preoperative Assessment of a Patient Undergoing Bariatric Surgery. Anesthesiol Clin 2024; 42:169-184. [PMID: 38278588 DOI: 10.1016/j.anclin.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Over the past few decades, obesity rates in the United States have risen drastically, and with this, there has been a rising demand for bariatric surgery. As such, anesthesiologists need to be familiar with the challenges presented by patients seeking bariatric surgery. Obesity causes pathophysiologic changes which may affect decision-making during the management of these patients. Patients seeking bariatric surgery also have a long, prescribed preoperative course that offers anesthesiologists the opportunity to be involved earlier during the pre-surgical evaluation and optimization process.
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Affiliation(s)
- Jennifer J Yuan
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA
| | - Raksha Bangalore
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA
| | - Dana Darwish
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA
| | - Tiffany S Moon
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA.
| | - Anupama Wadhwa
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, 5323 Harry Hines Boulevard, Dallas, TX 75390-9068, USA; Outcomes Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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3
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Abreu AA, Farah E, Nix R, Kethley D, Coble C, Wan Z, Alterio RE, Ngo F, Wadhwa A, Karagkounis G, Salgado Pogacnik J, Wang SC, Augustine M, Yopp AC, Zeh HJ, Polanco PM. Cost Analysis and Financial Implications of a Peritoneal Surface Malignancy Program in the USA. Ann Surg Oncol 2024; 31:630-644. [PMID: 37903950 DOI: 10.1245/s10434-023-14442-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/27/2023] [Indexed: 11/01/2023]
Abstract
BACKGROUND We aimed to describe the financial implications of cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) in the USA. MATERIALS AND METHODS We conducted a retrospective cost analysis of 100 CRS/HIPEC procedures to examine the impact of patient and procedural factors on hospital costs and reimbursement. A comparison of surgeons' work relative value units (wRVUs) between CRS/HIPEC and a representative sample of complex surgical oncology procedures was made to assess the physicians' compensation rate. Univariable and multivariable backward logistic regression was used to analyze the association between perioperative variables and high direct cost (HDCs). RESULTS The median direct cost per CRS/HIPEC procedure was US $44,770. The median hospital reimbursement was US $43,066, while professional reimbursement was US $8608, resulting in a positive contribution margin of US $7493/procedure. However, the contribution margin significantly varied with the payer mix. Privately insured patients had a positive median contribution margin of US $23,033, whereas Medicare-insured patients had a negative contribution margin of US $13,034. Length of stay (LOS) had the most significant association with HDC, and major complications had the most significant association with LOS. Finally, CRS/HIPEC procedures generated a median of 13 wRVU/h, which is significantly lower than the wRVU/h generated by open pancreatoduodenectomies, open gastrectomies, and hepatectomies. However, higher operation complexity and multiple visceral resections help compensate for the relatively low wRVU/h. CONCLUSIONS CRS/HIPEC is an expensive operation, and prolonged LOS has the most significant impact on the total cost of the procedure. High-quality care is essential to improve patient outcomes and maintain the economic sustainability of the procedure.
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Affiliation(s)
- Andres A Abreu
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Emile Farah
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Robert Nix
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dustin Kethley
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Collin Coble
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhihan Wan
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rodrigo E Alterio
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Fallon Ngo
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Anupama Wadhwa
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Georgios Karagkounis
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Javier Salgado Pogacnik
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sam C Wang
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mathew Augustine
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Adam C Yopp
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Herbert J Zeh
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Patricio M Polanco
- Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Huang EY, Li JZ, Chung D, Jacobsen GR, Sandler BJ, Wadhwa A, Said E, Robbins K, Horgan S, Broderick RC. Carbohydrate Loading and Aspiration Risk in Bariatric Patients: Safety in Preoperative Enhanced Recovery Protocols. J Am Coll Surg 2023; 236:1200-1206. [PMID: 36804320 DOI: 10.1097/xcs.0000000000000665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
BACKGROUND Enhanced recovery protocols have been developed to improve perioperative outcomes; however, there is ongoing concern for aspiration with recent oral intake in patients with obesity, who may be predisposed to impaired gastrointestinal motility and greater gastric volumes. We aim to study the safety of a 300-mL preoperative carbohydrate-loading drink preceding bariatric surgery. STUDY DESIGN Data were collected prospectively from patients undergoing primary bariatric surgery. All bariatric patients at our institution are prescribed a proton pump inhibitor for 4 weeks before surgery and undergo a screening preoperative esophagogastroduodenoscopy (EGD) before surgery with a traditional 8-hour fast (NOCARB), followed by an intraoperative day-of-operation EGD with carbohydrate loading (CARB) 2 to 4 hours before incision. Gastric volumes and pH are measured after being endoscopically suctioned via direct visualization during both settings. RESULTS We identified 203 patients: 94 patients (46.3%) in the CARB group and 109 patients (53.7%) in the NOCARB group. The patients were 82.3% female with a mean age of 42.8 years and average BMI of 41.7 kg/m 2 . There was no difference in gastric volume between NOCARB and CARB (17.0 vs 16.1 mL, p = 0.59). The NOCARB group had lower pH values than the CARB group (2.8 vs 3.8, p = 0.001). Subset analysis of 23 patients who had measurements on both screening and intraoperative EGD revealed lower gastric volumes in CARB patients (13.3 vs 18.3, p < 0.0001). CONCLUSIONS When included in an enhanced recovery protocol, proton pump inhibitor use and preoperative carbohydrate loading 2 to 4 hours before bariatric surgery does not increase aspiration risk based on gastric volumes and pH and should be strongly considered in all eligible bariatric patients.
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Affiliation(s)
- Estella Y Huang
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Jonathan Z Li
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Daniel Chung
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Garth R Jacobsen
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Bryan J Sandler
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Anupama Wadhwa
- Department of Anesthesiology, University of Texas Southwestern, Dallas, TX (Wadhwa)
| | - Engy Said
- Department of Anesthesiology (Said, Robbins), University of California, San Diego, CA
| | - Kimberly Robbins
- Department of Anesthesiology (Said, Robbins), University of California, San Diego, CA
| | - Santiago Horgan
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
| | - Ryan C Broderick
- From the Department of Surgery, Division of Minimally Invasive Surgery (Huang, Li, Chung, Jacobsen, Sandler, Horgan, Broderick), University of California, San Diego, CA
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Ngo F, Urman RD, English W, Kothari S, DeMaria E, Wadhwa A. An analysis of enhanced recovery pathways for bariatric surgery-preoperative fasting, carbohydrate loading, and aspiration risk: a position statement from the International Society for the Perioperative Care of Patients with Obesity. Surg Obes Relat Dis 2023; 19:171-177. [PMID: 36732143 DOI: 10.1016/j.soard.2022.12.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 12/10/2022] [Indexed: 01/06/2023]
Abstract
Enhanced recovery pathways (ERPs) and recommendations have become widely accepted for metabolic and bariatric surgery, including recommendations for preoperative carbohydrate loading and duration of fasting status. There is still a lack of consensus regarding such protocols and the underlying issues of gastric emptying time, resting gastric volume and pH, and risk of aspiration in patients with severe obesity and in patients undergoing bariatric surgery. The goal of this position statement by the International Society for the Perioperative Care of Patients with Obesity (ISPCOP) is to provide an analysis of available data on preoperative fasting and loading with oral complex clear carbohydrate drinks as well its potential effects on perioperative risk of aspiration in the context of Enhanced Recovery Pathways for Metabolic and Bariatric Surgery (ERAMBS).
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Affiliation(s)
- Fallon Ngo
- Department of Anesthesiology and Pain Management, University of Texas, Southwestern Medical Center, Dallas, Texas
| | - Richard D Urman
- International Society of Perioperative Care of Patients with Obesity, Lynnwood, Washington; Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Wayne English
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Shanu Kothari
- Department of Surgery, University of South Carolina Greenville, Prisma Health - Greenville Memorial Medical Campus, Greenville, South Carolina.
| | - Eric DeMaria
- Department of Surgery, East Carolina University, Greenville, North Carolina
| | - Anupama Wadhwa
- Department of Anesthesiology and Pain Management, University of Texas, Southwestern Medical Center, Dallas, Texas; International Society of Perioperative Care of Patients with Obesity, Lynnwood, Washington; Outcomes Research Consortium, Cleveland Clinic, Cleveland, Ohio
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Noid G, Currey A, Tai A, Kelly T, Jorns J, Bovi J, Kong A, Wadhwa A, Bergom C, Li A. Treatment Response Assessment Using Daily Dual-Energy CT during Pre-Operative Radiation Therapy for Early-Stage Breast Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Wadhwa A, Sareen A, Saade Y. TMS use in Depressive disorder in Youth. Eur Psychiatry 2022. [PMCID: PMC9567586 DOI: 10.1192/j.eurpsy.2022.1908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Objectives Methods Results Conclusions Disclosure
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Affiliation(s)
- A. Wadhwa
- University of Alabama at Birmingham, Child And Adolescent Psychiatry, Birmingham, United States of America,Corresponding author
| | - A. Sareen
- Bronx Care Health System-Affiliated with the Icahn School of Medicine at Mount Sinai, Psychiatry,
New York, United States of America
| | - Y. Saade
- Children’s National Hospital, Child And Adolescent Psychiatry,
Washington DC, United States of America
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Jay J, Sareen A, Hassan N, Dumlao N, Jose K, Haza I, Wadhwa A, Gunturu S. Tolerability of Ziprasidone Use in Children and Adolescents: A Prisma Model: Systematic Review and Meta-Analysis. Eur Psychiatry 2022. [PMCID: PMC9566988 DOI: 10.1192/j.eurpsy.2022.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Studies have demonstrated that Ziprasidone use may be beneficial in children. Determining its potential risks and benefits when used in children is therefore important. Objectives To examine the tolerability of Ziprasidone, an atypical antipsychotic, in children and adolescents. Methods We conducted a literature search of open label or randomized control trials that report on Ziprasidone use in children on three databases: Embase, PsychInfo and PubMed using the PRISMA guidelines of Systematic review and Meta-analysis. Out of 1690 articles, 11 studies met inclusion criteria. Outcome measures included adverse effects such as weight gain, increase in BMI, QTc prolongation, changes in metabolic parameters, sedation, and dizziness. We conducted a random effects meta-analysis and meta-regression of potential moderators. Publication bias was assessed with funnel plots. Results Data from Eleven studies was meta-analyzed (Total n= 474, mean age=12.87 years, male= 68..37%) that reported the use of Ziprasidone in children and adolescents with Psychosis, Bipolar, Autism spectrum disorders and Tourettes syndrome. Mean Ziprasidone dose = 84.40 mg and mean study duration = 2.85 months). We found that Ziprasidone was not found to cause any significant weight gain (1.72, p>0.05) or change in BMI (0.58 , p>0.05). QTc prolongation was found to be significant (11.9 , p<0.05). Most common side effects were sedation (42.44%), Nausea(19.32%), Headache (22.92%), fatigue (16.67%) and Dizziness (16.96 %). Conclusions Results demonstrate that Ziprasidone does not cause significant weight gain, however QTc prolongation and sedation were found to be significant side effects of Ziprasidone use. Therefore, baseline EKG and thorough history must be obtained before prescribing Ziprasidone in children and adolescents. Disclosure No significant relationships.
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Wadhwa A, Sareen A, Soeung C, Penuelas-Calvo I. Efficacy and Tolerability of Ziprasidone Use in Children and Adolescents, a Systemic Review and Meta Analysis. Eur Psychiatry 2022. [PMCID: PMC9565114 DOI: 10.1192/j.eurpsy.2022.1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Ziprasidone is an atypical antipsychotic that has demonstrated efficacy for the treatment of bipolar disorder and schizophrenia. There is some preliminary evidence for Ziprasidone use in children and adolescents with several open label studies and some randomized control trials, therefore it is advantageous to understand where Ziprasidone lies in the treatment algorithm of children and adolescents. Objectives The aim of our study is to examine the efficacy and tolerability of Ziprasidone in children and adolescents. Methods We conducted a literature search consisting of open label or randomized control trials (RCT) that report on Ziprasidone use in children on the PubMed database. We found 13 studies (11 open label and 2 RCT) that met our inclusion criteria. Our outcome measures included efficacy measures such as BPRS, YMRS, CGI-S and adverse effects such as weight gain, increase in BMI, QTc prolongation, sedation, dizziness and EPS. Results Data from thirteen studies was meta-analyzed (Total n= 560, mean age=13.16 years, male= 70.35% that reported the use of Ziprasidone in children and adolescents. We found that Ziprasidone was efficacious in children and adolescents in measures of BPRS (-13.493, p<0.05), YMRS (-14.225, p<0.05), CGI-S (-1.430, p<0.05). In measures of adverse effects, Ziprasidone was not found to cause any significant weight gain (0.164, p>0.05) or change in BMI (-0.159, p>0.05). QTc prolongation was found to be significant (13.122, p<0.05). Conclusions Ziprasidone is an efficacious in children and adolescent population. It does not cause significant weight gain, however QTc prolongation and sedation were found to be the most significant side effects . Disclosure No significant relationships.
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Stenberg E, dos Reis Falcão LF, O’Kane M, Liem R, Pournaras DJ, Salminen P, Urman RD, Wadhwa A, Gustafsson UO, Thorell A. Correction to: Guidelines for Perioperative Care in Bariatric Surgery: Enhanced Recovery After Surgery (ERAS) Society Recommendations: A 2021 Update. World J Surg 2022; 46:752. [DOI: 10.1007/s00268-022-06459-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Stenberg E, Dos Reis Falcão LF, O'Kane M, Liem R, Pournaras DJ, Salminen P, Urman RD, Wadhwa A, Gustafsson UO, Thorell A. Guidelines for Perioperative Care in Bariatric Surgery: Enhanced Recovery After Surgery (ERAS) Society Recommendations: A 2021 Update. World J Surg 2022; 46:729-751. [PMID: 34984504 PMCID: PMC8885505 DOI: 10.1007/s00268-021-06394-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2021] [Indexed: 02/08/2023]
Abstract
Background This is the second updated Enhanced Recovery After Surgery (ERAS®) Society guideline, presenting a consensus for optimal perioperative care in bariatric surgery and providing recommendations for each ERAS item within the ERAS® protocol. Methods A principal literature search was performed utilizing the Pubmed, EMBASE, Cochrane databases and ClinicalTrials.gov through December 2020, with particular attention paid to meta-analyses, randomized controlled trials and large prospective cohort studies. Selected studies were examined, reviewed and graded according to the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system. After critical appraisal of these studies, the group of authors reached consensus regarding recommendations. Results The quality of evidence for many ERAS interventions remains relatively low in a bariatric setting and evidence-based practices may need to be extrapolated from other surgeries. Conclusion A comprehensive, updated evidence-based consensus was reached and is presented in this review by the ERAS® Society.
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Affiliation(s)
- Erik Stenberg
- Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
| | | | - Mary O'Kane
- Dietetic Department, Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Leeds, UK
| | - Ronald Liem
- Department of Surgery, Groene Hart Hospital, Gouda, Netherlands.,Dutch Obesity Clinic, The Hague, Netherlands
| | - Dimitri J Pournaras
- Department of Upper GI and Bariatric/Metabolic Surgery, North Bristol NHS Trust, Southmead Hospital, Southmead Road, Bristol, UK
| | - Paulina Salminen
- Department of Surgery, University of Turku, Turku, Finland.,Division of Digestive Surgery and Urology, Turku University Hospital, Turku, Finland
| | - Richard D Urman
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Anupama Wadhwa
- Department of Anesthesiology, Outcomes Research Institute, Cleveland Clinic, University of Texas Southwestern, Dallas, USA
| | - Ulf O Gustafsson
- Division of Surgery, Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Anders Thorell
- Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.,Department of Surgery, Ersta Hospital, Stockholm, Sweden
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12
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Schumann R, Ziemann-Gimmel P, Sultana A, Eldawlatly AA, Kothari SN, Shah S, Wadhwa A. Postoperative nausea and vomiting in bariatric surgery: a position statement endorsed by the ASMBS and the ISPCOP. Surg Obes Relat Dis 2021; 17:1829-1833. [PMID: 34462224 DOI: 10.1016/j.soard.2021.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Roman Schumann
- Department of Anesthesiology, Critical Care and Pain Medicine, VA Boston Medical Center, West Roxbury, Massachusetts.
| | | | - Adrian Sultana
- Department of Anesthesiology, Macquarie University Hospital, Sydney, Australia
| | - Abdelazeem A Eldawlatly
- Department of Anesthesiology, College of Medicine, King Saud University Medical City, Riyadh, Saudi Arabia
| | - Shanu N Kothari
- Department of Surgery, University of South Carolina School of Medicine-Prisma Health, Greenville, South Carolina
| | - Sajani Shah
- Department of Surgery, Tufts Medical Center, Boston, Massachusetts
| | - Anupama Wadhwa
- Department of Anesthesiology, University of Texas Southwestern, Dallas, Texas
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13
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Hübner M, Kusamura S, Villeneuve L, Al-Niaimi A, Alyami M, Balonov K, Bell J, Bristow R, Guiral DC, Fagotti A, Falcão LFR, Glehen O, Lambert L, Mack L, Muenster T, Piso P, Pocard M, Rau B, Sgarbura O, Somashekhar SP, Wadhwa A, Altman A, Fawcett W, Veerapong J, Nelson G. Guidelines for Perioperative Care in Cytoreductive Surgery (CRS) with or without hyperthermic IntraPEritoneal chemotherapy (HIPEC): Enhanced recovery after surgery (ERAS®) Society Recommendations - Part I: Preoperative and intraoperative management. Eur J Surg Oncol 2020; 46:2292-2310. [PMID: 32873454 DOI: 10.1016/j.ejso.2020.07.041] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/14/2020] [Accepted: 07/28/2020] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Enhanced recovery after surgery (ERAS) pathways have been shown to considerably reduce complications, length of stay and costs after most of surgical procedures by standardised application of best evidence-based perioperative care. The aim was to elaborate dedicated recommendations for cytoreductive surgery (CRS) ± hyperthermic intraperitoneal chemotherapy (HIPEC) in a two-part series of guidelines based on expert consensus. The present part I of the guidelines highlights preoperative and intraoperative management. METHODS The core group assembled a multidisciplinary panel of 24 experts involved in peritoneal surface malignancy surgery representing the fields of general surgery (n = 12), gynaecological surgery (n = 6), and anaesthesia (n = 6). Experts systematically reviewed and summarized the available evidence on 72 identified perioperative care items, following the GRADE (grading of recommendations, assessment, development, evaluation) system. Final consensus (defined as ≥50%, or ≥70% of weak/strong recommendations combined) was reached by a standardised 2-round Delphi process, regarding the strength of recommendations. RESULTS Response rates were 100% for both Delphi rounds. Quality of evidence was evaluated high, moderate low and very low, for 15 (21%), 26 (36%), 29 (40%) and 2 items, respectively. Consensus was reached for 71/72(98.6%) items. Strong recommendations were defined for 37 items, No consensus could be reached regarding the preemptive use of fresh frozen plasma. CONCLUSION The present ERAS recommendations for CRS±HIPEC are based on a standardised expert consensus process providing clinicians with valuable guidance. There is an urgent need to produce high quality studies for CRS±HIPEC and to prospectively evaluate recommendations in clinical practice.
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Affiliation(s)
- Martin Hübner
- Department of Visceral Surgery, Lausanne University Hospital CHUV, University of Lausanne (UNIL), Switzerland.
| | - Shigeki Kusamura
- Peritoneal Surface Malignancy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Laurent Villeneuve
- Clinical Research and Epidemiological Unit, Department of Public Health, Lyon University Hospital, EA 3738, University of Lyon, Lyon, France
| | - Ahmed Al-Niaimi
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, Madison, USA
| | - Mohammad Alyami
- Department of General Surgery and Surgical Oncology, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Konstantin Balonov
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, USA
| | - John Bell
- Department of Anesthesiology, Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - Robert Bristow
- Department of Obstetrics and Gynecologic Oncology, University of California, Irvine School of Medicine, Orange, USA
| | - Delia Cortés Guiral
- Department of General Surgery (Peritoneal Surface Surgical Oncology). University Hospital Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Anna Fagotti
- Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Catholic University of the Sacred Heart, 00168, Rome, Italy
| | - Luiz Fernando R Falcão
- Discipline of Anesthesiology, Pain and Critical Care Medicine, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Olivier Glehen
- Department of Digestive Surgery, Lyon University Hospital, EA 3738, University of Lyon, Lyon, France
| | - Laura Lambert
- Peritoneal Surface Malignancy Program, Section of Surgical Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Lloyd Mack
- Department of Surgical Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Tino Muenster
- Department of Anaesthesiology and Intensive Care Medicine. Hospital Barmherzige Brüder, Regensburg, Germany
| | - Pompiliu Piso
- Department of General and Visceral Surgery, Hospital Barmherzige Brüder, Regensburg, Germany
| | - Marc Pocard
- Department of Digestive Surgery, Lariboisière University Hospital, Paris, France
| | - Beate Rau
- Department of Surgery, Campus Virchow-Klinikum and Charité Campus Mitte, Charité-Universitätsmedizin Berlin, Germany
| | - Olivia Sgarbura
- Department of Surgical Oncology, Cancer Institute Montpellier (ICM), University of Montpellier, Montpellier, France
| | - S P Somashekhar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Centre, Manipal Hospital, Bengaluru, India
| | - Anupama Wadhwa
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Alon Altman
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Manitoba, Winnipeg, Canada
| | - William Fawcett
- Anaesthesia and Pain Medicine, Royal Surrey County Hospital NHS Foundation Trust, Guildford, UK
| | - Jula Veerapong
- Department of Surgery, Division of Surgical Oncology, University of California San Diego, La Jolla, CA, USA
| | - Gregg Nelson
- Division of Gynecologic Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, Alberta, Canada
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Desai N, Jorns J, Kelly T, Johnstone C, Bovi J, Shukla M, Wadhwa A, Kong A, Paulson E, Currey A, Bergom C. Correlation between Tumor-Infiltrating Lymphocytes and 21-Gene Recurrence Score in Patients Undergoing Pre-Operative Accelerated Partial-Breast Irradiation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Desai N, Liang Y, Paulson E, Fitzgerald J, Jorns J, Bovi J, Kelly T, Wadhwa A, Li A, Kong A, Johnstone C, Shukla M, Bergom C, Currey A. Relationship of Radiomic Features and Tumor Response in Patients Undergoing Pre-Operative Accelerated Partial Breast Irradiation for Breast Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Komatsu R, Sengupta P, Wadhwa A, Akça O, Sessler DI, Ezri T, Lenhardt R. Ultrasound Quantification of Anterior Soft Tissue Thickness Fails to Predict Difficult Laryngoscopy in Obese Patients. Anaesth Intensive Care 2019; 35:32-7. [PMID: 17323663 DOI: 10.1177/0310057x0703500104] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Morbid obesity is associated with difficult laryngoscopy and intubation. In the general population, bedside indices for predicting difficult intubation (i.e. Mallampati classification, thyromental distance, sternomental distance, mouth-opening and Wilson risk score) have poor-to-moderate sensitivity (20-62%) and moderate-to-fair specificity (82-97%). In the obese population, although the risk of difficult intubation after a positive Mallampati test is 34%, it is still not sufficient to be used as a single predictive test. An abundance of pretracheal soft tissue anterior to the vocal cords, as quantified by ultrasound, was a better predictor of difficult laryngoscopy than body mass index (BMI) in Israeli patients. Obesity is a growing problem in the United States: therefore we sought to confirm this finding in the obese population in the United States. We used ultrasound to quantify the neck soft tissue, from the skin to the anterior aspect of the trachea at the vocal cords, in 64 obese patients (BMI >35). We assessed thyromental distance, mouth-opening, jaw movement, limited neck mobility, modified Mallampati score, abnormal upper teeth, neck circumference, confirmed obstructive sleep apnoea, BMI, age, race and gender as predictors. Twenty patients were classified as difficult laryngoscopy; they were older (47±9 vs 42±1 years; P=0.048; mean±SD) and had less soft pretracheal tissue (20.4±3.0 vs 22.3±3.8 mm; P=0.049) than did easy laryngoscopy patients. Multivariate regression indicated that none of the factors was an independent predictor of difficult laryngoscopy. We conclude that the thickness of pretracheal soft tissue at the level of the vocal cords is not a good predictor of difficult laryngoscopy in obese patients in the United States.
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Affiliation(s)
- R Komatsu
- Outcomes Research Institute and Department of Anesthesiology and Perioperative Medicine, University of Louisville, Louisville, Kentucky, USA
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17
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Abstract
The efficacy of a dietary intervention programme to control vitamin A deficiency through inexpensive, locally available sources of β-carotene was evaluated in 121 children 7–12 years old. The subjects were randomly divided into experimental and control groups. A three-day food intake was first recorded for each subject using a 24-hour recall method and repeated at the end of the study on a randomly selected subsample. The intervention period lasted one month, during which carrots, papayas, coriander, and mint were offered daily as sources of β-carotene. There was no significant difference in the dietary intakes of the groups before the study. After the intervention period, the serum vitamin A values of the experimental subjects were significantly higher than those of the controls. These results indicate that consumption of small amounts of inexpensive, readily available vegetable sources of β-carotene could help prevent and control vitamin A deficiency. Nutrition education programmes are needed to encourage the use of these foods for home consumption as well as in feeding programmes for schoolchildren.
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18
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Galling B, Vernon JA, Pagsberg AK, Wadhwa A, Grudnikoff E, Seidman AJ, Tsoy-Podosenin M, Poyurovsky M, Kane JM, Correll CU. Efficacy and safety of antidepressant augmentation of continued antipsychotic treatment in patients with schizophrenia. Acta Psychiatr Scand 2018; 137:187-205. [PMID: 29431197 DOI: 10.1111/acps.12854] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/02/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of antidepressant augmentation of antipsychotics in schizophrenia. METHODS Systematic literature search (PubMed/MEDLINE/PsycINFO/Cochrane Library) from database inception until 10/10/2017 for randomized, double-blind, efficacy-focused trials comparing adjunctive antidepressants vs. placebo in schizophrenia. RESULTS In a random-effects meta-analysis (studies = 42, n = 1934, duration = 10.1 ± 8.1 weeks), antidepressant augmentation outperformed placebo regarding total symptom reduction [standardized mean difference (SMD) = -0.37, 95% confidence interval (CI) = -0.57 to -0.17, P < 0.001], driven by negative (SMD = -0.25, 95% CI = -0.44-0.06, P = 0.010), but not positive (P = 0.190) or general (P = 0.089) symptom reduction. Superiority regarding negative symptoms was confirmed in studies augmenting first-generation antipsychotics (FGAs) (SMD = -0.42, 95% CI = -0.77, -0.07, P = 0.019), but not second-generation antipsychotics (P = 0.144). Uniquely, superiority in total symptom reduction by NaSSAs (SMD = -0.71, 95% CI = -1.21, -0.20, P = 0.006) was not driven by negative (P = 0.438), but by positive symptom reduction (SMD = -0.43, 95% CI = -0.77, -0.09, P = 0.012). Antidepressants did not improve depressive symptoms more than placebo (P = 0.185). Except for more dry mouth [risk ratio (RR) = 1.57, 95% CI = 1.04-2.36, P = 0.03], antidepressant augmentation was not associated with more adverse events or all-cause/specific-cause discontinuation. CONCLUSIONS For schizophrenia patients on stable antipsychotic treatment, adjunctive antidepressants are effective for total and particularly negative symptom reduction. However, effects are small-to-medium, differ across antidepressants, and negative symptom improvement seems restricted to the augmentation of FGAs.
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Affiliation(s)
- B Galling
- Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany.,The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA.,Hofstra Northwell School of Medicine, Hofstra University, Hempstead, NY, USA
| | - J A Vernon
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA
| | - A K Pagsberg
- Child and Adolescent Mental Health Center, Mental Health Services, Capital Region of Denmark, Glostrup, Denmark.,Faculty of Health and Medical Sciences, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - A Wadhwa
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA
| | | | - A J Seidman
- Department of Psychology, Iowa State University, Ames, IA, USA
| | - M Tsoy-Podosenin
- Department of Psychiatry, St John's Episcopal Hospital, New York, NY, USA
| | - M Poyurovsky
- Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel.,Tirat Carmel Mental Health Center, tirat Carmel, Israel
| | - J M Kane
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA.,Hofstra Northwell School of Medicine, Hofstra University, Hempstead, NY, USA.,The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - C U Correll
- Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany.,The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, NY, USA.,Hofstra Northwell School of Medicine, Hofstra University, Hempstead, NY, USA.,The Feinstein Institute for Medical Research, Manhasset, NY, USA
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19
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Wadhwa A, AlNahhas MF, Dierkhising R, Patel R, Kashyap P, Pardi D, Khanna S, Grover M. High risk of post-infectious irritable bowel syndrome in patients with Clostridium difficile infection. Aliment Pharmacol Ther 2016; 44:576-82. [PMID: 27444134 PMCID: PMC4982831 DOI: 10.1111/apt.13737] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 04/24/2016] [Accepted: 06/29/2016] [Indexed: 01/16/2023]
Abstract
BACKGROUND Infectious enteritis is a commonly identified risk factor for irritable bowel syndrome (IBS). The incidence of Clostridium difficile infection (CDI) is on the rise. However, there is limited information on post-infectious IBS (PI-IBS) development following CDI and the host- and infection-related risk factors are not known. AIM To determine the incidence and risk factors for PI-IBS following CDI. METHODS A total of 684 cases of CDI identified from September 2012 to November 2013 were surveyed. Participants completed the Rome III IBS questionnaire and details on the CDI episode. Predictive modelling was done using logistic regression to evaluate risk factors for PI-IBS development. RESULTS A total of 315 CDI cases responded (46% response rate) and 205 were at-risk (no pre-CDI IBS) for PI-IBS development. A total of 52/205 (25%) met the Rome III criteria for IBS ≥6 months following CDI. IBS-mixed was most common followed by IBS-diarrhoea. In comparison to those without subsequent PI-IBS, greater percentage of PI-IBS patients had CDI symptoms >7 days, nausea, vomiting, abdominal pain during CDI, anxiety and a higher BMI. Using logistic regression, CDI symptoms >7 days [Odds ratio (OR): 2.96, P = 0.01], current anxiety (OR: 1.33, P < 0.0001) and a higher BMI (OR: 1.08, P = 0.004) were independently associated with PI-IBS development; blood in the stool during CDI was protective (OR: 0.44, P = 0.06). CONCLUSIONS In this cohort study, new-onset IBS is common after CDI. Longer CDI duration, current anxiety and higher BMI are associated with the diagnosis of C. difficile PI-IBS. This chronic sequela should be considered during active management and follow-up of patients with CDI.
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Affiliation(s)
- A. Wadhwa
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - MF. AlNahhas
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - R. Dierkhising
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN
| | - R. Patel
- Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | - P. Kashyap
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - D. Pardi
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - S. Khanna
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | - M. Grover
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
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20
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Kurz A, Fleischmann E, Sessler D, Buggy D, Apfel C, Akça O, Fleischmann E, Erdik E, Eredics K, Kabon B, Herbst F, Kazerounian S, Kugener A, Marschalek C, Mikocki P, Niedermayer M, Obewegeser E, Ratzenboeck I, Rozum R, Sindhuber S, Schlemitz K, Schebesta K, Stift A, Kurz A, Sessler DI, Bala E, Chen ST, Devarajan J, Maheshwari A, Mahboobi R, Mascha E, Nagem H, Rajogopalan S, Reynolds L, Alvarez A, Stocchi L, Doufas AG, Govinda R, Kasuya Y, Komatsu R, Lenhardt R, Orhan-Sungur M, Sengupta P, Wadhwa A, Galandiuk S, Buggy D, Arain M, Burke S, McGuire B, Ragheb J, Taguchi A. Effects of supplemental oxygen and dexamethasone on surgical site infection: a factorial randomized trial ‡. Br J Anaesth 2015; 115:434-43. [DOI: 10.1093/bja/aev062] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2014] [Indexed: 11/13/2022] Open
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21
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Wadhwa A, Kabon B, Fleischmann E, Kurz A, Sessler DI. Supplemental Postoperative Oxygen Does Not Reduce Surgical Site Infection and Major Healing-Related Complications from Bariatric Surgery in Morbidly Obese Patients. Anesth Analg 2014; 119:357-365. [DOI: 10.1213/ane.0000000000000318] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Abstract
With the advent of safety needles to prevent inadvertent needle sticks in the operating room (OR), a potentially new issue has arisen. These needles may result in coring, or the shaving off of fragments of the rubber stopper, when the needle is pierced through the rubber stopper of the medication vial. These fragments may be left in the vial and then drawn up with the medication and possibly injected into patients. The current study prospectively evaluated the incidence of coring when blunt and sharp needles were used to pierce rubber topped vials. We also evaluated the incidence of coring in empty medication vials with rubber tops. The rubber caps were then pierced with either an18-gauge sharp hypodermic needle or a blunt plastic (safety) needle. Coring occurred in 102 of 250 (40.8%) vials when a blunt needle was used versus 9 of 215 (4.2%) vials with a sharp needle (P < 0.0001). A significant incidence of coring was demonstrated when a blunt plastic safety needle was used. This situation is potentially a patient safety hazard and methods to eliminate this problem are needed.
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Affiliation(s)
- Tariq Wani
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Anupama Wadhwa
- Department of Anesthesiology, University of Louisville, Louisville, KY 40202, USA
| | - Joseph D Tobias
- Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, OH 43205, USA; Department of Anesthesiology, The Ohio State University, Columbus, OH 43210, USA.
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23
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Wadhwa A, Avasthi R, Ghambhir JK, Dwivedi S. To study the prevalence and profile of metabolic syndrome, levels of hs-CRP, Lp(a) and serum ferritin in young Indian patients (< or = 45 years) with acute myocardial infarction. J Assoc Physicians India 2013; 61:384-386. [PMID: 24640203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To study the prevalence and profile of metabolic syndrome, levels of hs-CRP, Lp(a) and serum ferritin in young Indian patients (< or = 45 years) with acute MI. METHODS A total of 80 subjects in two groups (40 cases and 40 controls) of age < or = 45 years were studied. Diagnosis of MI was made using the American College of Cardiology and European Society of Cardiology guidelines for acute MI. Patients were assessed for presence of MetS, diagnosed as per modified ATP III criteria. The anthropometric measurements (including height, weight, waist circumference) and sample collection for lipid profile, fasting blood sugar, hs-CRP, Lp(a) and serum ferritin were done after seventy two hours of admission. RESULTS The mean age for cases was 39.23 +/- 4.80 years and for controls it was 38.9 +/- 4.23 years. 19 (47.5%) patients out of 40 in group 1 fulfilled > or = 3/5 criteria for MetS while only 8 (20%) subjects in control group had MetS. Among five components of metabolic syndrome, increased waist circumference was most predominant factor followed by decreased HDL, increased TG, increased blood pressure and impaired fasting glucose. The mean value of serum ferritin was 279.33 +/- 46.69 mg in case group as compared to 245.15 +/- 56.94 in control group. hs-CRP (16.048 +/- 10.27 mg/l vs 1.8 +/- 1.6 mg/l) and Lp(a) (38.74 +/- 26.15 mg/dl vs 20.54 +/- 16.27 mg/dl) levels were significantly raised in cases as compared to control subjects. CONCLUSION The present study revealed high prevalence of metabolic syndrome (47.5%) in young patients with acute MI. Serum hsCRP, a diagnostic and prognostic novel marker of inflammation was also significantly elevated in cases. Its relationship with metabolic syndrome is also well established. Lp(a) and serum ferritin were also raised in cases.
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24
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Wadhwa A, Stuckey L, Kaul D, Bartos C, McCullough H, Florn R, Lama V, Lin J, Chan K. Prevention of Resistant CMV Infection Using Persistent Valganciclovir Therapy through Leukopenia and Extending the Duration. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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25
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Özyuvaci E, Şitilci AT, Wadhwa A. Musculocutaneous neuropathy after anaesthesia for thyroid surgery: a case report. Agri 2012; 24:93-5. [PMID: 22865495 DOI: 10.5505/agri.2012.49369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Postoperative isolated injury of the musculocutaneous nerve is a rare disorder and complication. Reported cases are claimed to present with loss of biceps and brachialis power without neuropathic pain. When injury occurs to one of the terminal branches of the brachial plexus, the lateral cutaneous nerve of the forearm, pain is the major symptom and it typically radiates along the radial aspect of the forearm. In the literature, isolated lesions of the musculocutaneous nerve have been attributed to repeated microtrauma, indirect trauma or direct trauma to the nerve. It may also occur due to strenuous extension of the forearm for prolonged periods.
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Affiliation(s)
- Emine Özyuvaci
- Department of Anaesthesiology and Reanimation, Istanbul Education and Research Hospital, Istanbul, Turkey.
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26
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Latif RK, Bautista AF, Memon SB, Smith EA, Wang C, Wadhwa A, Carter MB, Akca O. Teaching aseptic technique for central venous access under ultrasound guidance: a randomized trial comparing didactic training alone to didactic plus simulation-based training. Anesth Analg 2011; 114:626-33. [PMID: 22190554 DOI: 10.1213/ane.0b013e3182405eb3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Our goal was to determine whether simulation combined with didactic training improves sterile technique during ultrasound (US)-guided central venous catheter (CVC) insertion compared with didactic training alone among novices. We hypothesized that novices who receive combined didactic and simulation-based training would perform similarly to experienced residents in aseptic technique, knowledge, and perception of comfort during US-guided CVC insertion on a simulator. METHODS Seventy-two subjects were enrolled in a randomized, controlled trial of an educational intervention. Fifty-four novices were randomized into either the didactic group or the simulation combined with didactic group. Both groups received didactic training but the simulation combined with didactic group also received simulation-based CVC insertion training. Both groups were tested by demonstrating US-guided CVC insertion on a simulator. Aseptic technique was scored on 8 steps as "yes/no" and also using a 7-point Likert scale with 7 being "excellent technique" by a rater blinded to subject randomization. After initial testing, the didactic group was offered simulation-based training and retesting. Both groups also took a pre- and posttraining test of knowledge and rated their comfort with US and CVC insertion pre- and posttraining on a 5-point Likert scale. Subsequently, 18 experienced residents also took the test of knowledge, rated their comfort level, and were scored while performing aseptic US-guided CVC insertion using a simulator. RESULTS The simulation combined with didactic group achieved a 167% (95% confidence interval [CI] 133%-167%) incremental increase in yes/no scores and 115% (CI 112%-127%) incremental increase in Likert scale ratings on aseptic technique compared with novices in the didactic group. Compared with experienced residents, simulation combined with didactic trained novices achieved an increase in aseptic scores with a 33.3% (CI 16.7%-50%) increase in yes/no ratings and a 20% (CI 13.3%-40%) increase in Likert scaled ratings, and scored 2.5-fold higher on the test of knowledge. There was a 3-fold increase in knowledge and 2-fold increase in comfort level among all novices (P < 0.001) after combined didactic and simulation-based training. CONCLUSION Simulation combined with didactic training is superior to didactic training alone for acquisition of clinical skills such as US-guided CVC insertion. After combined didactic and simulation-based training, novices can outperform experienced residents in aseptic technique as well as in measurements of knowledge.
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Affiliation(s)
- Rana K Latif
- Department of Anesthesiology and Perioperative Medicine, University of Louisville Hospital, 530 S. Jackson St., Louisville, KY 40202, USA.
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27
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Walker N, Badri L, Wadhwa A, Lama V. 225 Local Mesenchymal Origin of Myofibroblasts in the Fibrotic Lesions in Human Lung Allografts. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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28
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Wadhwa A, Walker N, Badri L, Chan K, Lama V. 562 Fibrotic Differentiation of Resident Mesenchymal Stromal Cells in Bronchiolitis Obliterans Syndrome. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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29
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Kaur R, Wadhwa A, Gulati A, Agrawal AK. An unusual phaeoid fungi: Ulocladium, as a cause of chronic allergic fungal sinusitis. Iran J Microbiol 2010; 2:95-7. [PMID: 22347556 PMCID: PMC3279772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Allergic fungal sinusitis (AFS) has been recognized as an important cause of chronic sinusitis commonly caused by Aspergillus spp. and various dematiaceous fungi like Bipolaris, Alternaria, Curvalaria, and etc. Ulocladium botrytis is a non pathogenic environmental dematiaceous fungi, which has been recently described as a human pathogen. Ulocladium has never been associated with allergic fungal sinusitis but it was identified as an etiological agent of AFS in a 35 year old immunocompetent female patient presenting with chronic nasal obstruction of several months duration to our hospital. The patient underwent FESS and the excised polyps revealed Ulocladium as the causative fungal agent.
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Affiliation(s)
| | - A Wadhwa
- Department of Microbiology,Corresponding author: Dr. Anupriya Wadhwa. Address: 76, Ground Floor, RPS Flats, Sheikh Sarai Phase-1, Malviya Nagar, New Delhi-110017. Tel: +91-9312350269, +91-1126017626. E-mail:
| | - A Gulati
- Department of Otorhinolaryngology, Maulana Azad Medical College, New Delhi, India
| | - AK Agrawal
- Department of Otorhinolaryngology, Maulana Azad Medical College, New Delhi, India
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Doufas AG, Komatsu R, Orhan-Sungur M, Sengupta P, Wadhwa A, Mascha E, Shafer SL, Sessler DI. Neuromuscular Block Differentially Affects Immobility and Cortical Activation at Near–Minimum Alveolar Concentration Anesthesia. Anesth Analg 2009; 109:1097-104. [DOI: 10.1213/ane.0b013e3181af631a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lenhardt R, Orhan-Sungur M, Komatsu R, Govinda R, Kasuya Y, Sessler DI, Wadhwa A. Suppression of shivering during hypothermia using a novel drug combination in healthy volunteers. Anesthesiology 2009; 111:110-5. [PMID: 19512867 DOI: 10.1097/aln.0b013e3181a979a3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hypothermia may be beneficial in stroke victims; however, it provokes vigorous shivering. Buspirone and dexmedetomidine each linearly reduce the shivering threshold with minimal sedation and no respiratory depression. This study tested the hypotheses that the combination of buspirone and dexmedetomidine would (1) synergistically reduce the shivering threshold, (2) synergistically reduce the gain and maximum intensity of shivering, and (3) produce sufficient inhibition to permit cooling to 34 degrees C without excessive hypotension or sedation. METHODS Eight healthy men were randomly assigned on 4 days to (1) no drug, (2) buspirone (60 mg orally), (3) dexmedetomidine (intravenous infusion to target plasma concentration of 0.6 ng/ml), or (4) combination of buspirone and dexmedetomidine at same doses. Lactated Ringer's solution (approximately 3 degrees C) was infused intravenously to decrease tympanic membrane temperature by 1.5 degrees C/h. Shivering threshold was defined as an increase in oxygen consumption greater than 20%. Sedation was evaluated using the Observer's Assessment of Sedation/Alertness scale. RESULTS Mean arterial pressure and heart rate were slightly lower on dexmedetomidine and combination days. Likewise, the level of sedation was statistically different on these 2 days but clinically unimportant. Buspirone reduced the shivering threshold from 36.6 degrees C +/- 0.4 degrees C to 35.9 degrees C +/- 0.4 degrees C, dexmedetomidine reduced it to 34.7 degrees C +/- 0.5 degrees C, and the combination to 34.1 +/- 0.4 degrees C. The interaction effect of 0.04 degrees C was not significant. The gain of shivering and maximum shivering intensity were similar on each day. CONCLUSIONS The combination of buspirone and dexmedetomidine additively reduced the shivering threshold. Thus, supplementing dexmedetomidine with buspirone blocks shivering and causes only minimal sedation.
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Affiliation(s)
- Rainer Lenhardt
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, Louisville, Kentucky, USA.
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Griffin L, Painter PE, Wadhwa A, Spirduso WW. Motor unit firing variability and synchronization during short-term light-load training in older adults. Exp Brain Res 2009; 197:337-45. [PMID: 19578838 DOI: 10.1007/s00221-009-1920-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 06/19/2009] [Indexed: 11/28/2022]
Abstract
We compared motor unit synchronization and firing rate variability within and across synergistic hand muscles during a pinching task following short-term light-load training to improve force steadiness in older adults. A total of 183 motor unit pairs before training and 158 motor unit pairs after training were recorded with intramuscular fine-wire electrodes within and across the first dorsal interosseous (FDI) and adductor pollicis (AdP) muscles during a pinch task performed by ten older adults before and after a 4-week short-term light-load training program. Nine younger adults performed the same experimental sessions 4 weeks apart with no training intervention. Two-minute sustained contractions of 2, 4, 8, and 12% maximal voluntary contraction (MVC) were performed with the non-dominant hand. The coefficient of variation (CV) of force was greater in older than in younger adults and was lower at the 2 and 4% MVC levels in both the finger (0.12 +/- 0.01 vs. 0.08 +/- 0.01, and 0.08 +/- 0.01 vs. 0.05 +/- 0.01, respectively) and thumb (0.11 +/- 0.01 vs. 0.08 +/- 0.01, and 0.09 +/- 0.01 vs. 0.05 +/- 0.01, respectively) compared to higher force levels following training in the older adults. There were no changes in CIS or k'-1 values following training. Motor unit firing rate variability significantly decreased at low force levels in the FDI muscle and also tended to decrease with training in the AdP muscle (p = 0.06). No changes occurred in the younger control group. These findings are the first to show that motor unit synchronization does not change during light-load training. Thus, it is likely that force steadiness in older adults improves by reducing motor unit firing variability rather than by changing motor unit synchronization.
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Affiliation(s)
- L Griffin
- Department of Kinesiology and Health Education, University of Texas at Austin, Bellmont 222, 1 University Station, D3700, Austin, TX 78712, USA.
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Mahant S, Jovcevska V, Wadhwa A. Clinical Excellence in the Academic Health Science Centre: What Makes an Excellent Clinician? Paediatr Child Health 2009. [DOI: 10.1093/pch/14.suppl_a.41aa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Renes S, Clark L, Gielen M, Spoormans H, Giele J, Wadhwa A. A Simplified Approach to Vertical Infraclavicular Brachial Plexus Blockade Using Hand-Held Doppler. Anesth Analg 2008; 106:1012-4, table of contents. [DOI: 10.1213/ane.0b013e318161667c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wadhwa A, Komatsu R, Orhan-Sungur M, Barnes P, In J, Sessler DI, Lenhardt R. New circulating-water devices warm more quickly than forced-air in volunteers. Anesth Analg 2007; 105:1681-7, table of contents. [PMID: 18042867 DOI: 10.1213/01.ane.0000289534.65690.ce] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Newer circulating-water systems supply more heat than forced-air, mainly because the heat capacity of water is much greater than for that of dry warm air and, in part, because they provide posterior as well as anterior heating. Several heating systems are available, but three major ones have yet to be compared directly. We therefore compared two circulating-water systems with a forced-air system during simulation of upper abdominal or chest surgery in volunteers. METHODS Seven healthy volunteers participated on three separate study days. Each day, they were anesthetized and cooled to a core temperature near 34 degrees C, which was maintained for 45-60 min. They were then rewarmed with one of three warming systems until distal esophageal core temperature reached 36 degrees C or anesthesia had lasted 8 h. The warming systems were 1) energy transfer pads (two split torso pads and two universal pads; Kimberly Clark, Roswell, GA); 2) circulating-water garment (Allon MTRE 3365 for cardiac surgery, Akiva, Israel); and 3) lower body forced-air warming (Bair Hugger #525, #750 blower, Eden Prairie, MN). Data are presented as mean +/- sd; P < 0.05 was statistically significant. RESULTS The rate of increase of core temperature from 34 degrees C to 36 degrees C was 1.2 degrees C +/- 0.2 degrees C/h with the Kimberly Clark system, 0.9 degrees C +/- 0.2 degrees C/h with the Allon system, and 0.6 degrees C +/- 0.1 degrees C/h with the Bair Hugger (P = 0.002). CONCLUSIONS The warming rate with the Kimberly Clark system was 25% faster than with the Allon system and twice as fast as with the Bair Hugger. Both circulating-water systems thus warmed hypothermic volunteers in significantly less time than the forced-air system.
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Affiliation(s)
- Anupama Wadhwa
- Outcomes Research Institute, University of Louisville, Louisville, Kentucky, USA.
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Komatsu R, Sengupta P, Cherynak G, Wadhwa A, Sessler DI, Liu J, Hurst HE, Lenhardt R. Doxapram only slightly reduces the shivering threshold in healthy volunteers. Anesth Analg 2005; 101:1368-1373. [PMID: 16243996 PMCID: PMC1552102 DOI: 10.1213/01.ane.0000180198.13467.df] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We determined the effects of doxapram on the major autonomic thermoregulatory responses in humans. Nine healthy volunteers were studied on 2 days: control and doxapram (IV infusion to a plasma concentration of 2.4 +/- 0.8, 2.5 +/- 0.9, and 2.6 +/- 1.1 microg/mL at the sweating, vasoconstriction, and shivering thresholds, respectively). Each day, skin and core temperatures were increased to provoke sweating, then reduced to elicit peripheral vasoconstriction and shivering. We determined the sweating, vasoconstriction, and shivering thresholds with compensation for changes in skin temperature. Data were analyzed with paired t-tests and presented as mean +/- sd; P < 0.05 was considered statistically significant. Doxapram did not change the sweating (control: 37.5 degrees +/- 0.4 degrees C, doxapram: 37.3 degrees +/- 0.4 degrees C; P = 0.290) or the vasoconstriction threshold (36.8 degrees +/- 0.7 degrees C versus 36.4 degrees +/- 0.5 degrees C; P = 0.110). However, it significantly reduced the shivering threshold from 36.2 degrees +/- 0.5 degrees C to 35.7 degrees +/- 0.7 degrees C (P = 0.012). No sedation or symptoms of panic were observed on either study day. The observed reduction in the shivering threshold explains the drug's efficacy for treatment of postoperative shivering; however, a reduction of only 0.5 degrees C is unlikely to markedly facilitate induction of therapeutic hypothermia as a sole drug.
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Affiliation(s)
- Ryu Komatsu
- Research Fellow, Outcomes Research™ Institute, University of Louisville
| | - Papiya Sengupta
- Research Fellow, Outcomes Research™ Institute, University of Louisville
| | - Grigory Cherynak
- Resident, Department of Anesthesiology & Perioperative Medicine, University of Louisville (current address: Assistant Professor, Department of Anesthesiology, Oklahoma University Health Sciences Center)
| | - Anupama Wadhwa
- Assistant Professor, Outcomes Research™ Institute and Department of Anesthesiology & Perioperative Medicine, University of Louisville
| | - Daniel I. Sessler
- Vice Dean for Research and Associate Vice President for Health Affairs; Director Outcomes Research™ Institute; Interim Chair and Lolita & Samuel Weakley Distinguished Professor of Anesthesiology, University of Louisville
| | - Jin Liu
- Graduate Student, Department of Pharmacology and Toxicology, University of Louisville
| | - Harrell E. Hurst
- Professor, Department of Pharmacology and Toxicology, University of Louisville
| | - Rainer Lenhardt
- Assistant Professor and Vice Chair, Outcomes Research™ Institute and Department of Anesthesiology & Perioperative Medicine; Director Neurosciences Intensive Care Unit, University of Louisville
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Sahni V, Agarwal SK, Singh NP, Sikdar S, Yadav A, Wadhwa A, Aggarwal G. Successful pregnancy in untreated limited Wegener's granulomatosis. Med J Malaysia 2005; 60:492-4. [PMID: 16570714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A thirty four year old female presented with upper and lower respiratory symptoms in the third trimester of pregnancy. After the delivery of a healthy baby, the symptoms progressed to involve multiple organ systems and eventually a diagnosis of limited Wegener's Granulomatosis (Carrington-Liebow syndrome) was made. The extremely rare combination of WG and pregnancy, especially the onset of disease in late pregnancy is discussed. The successful outcome of pregnancy even without treatment of WG is the highlight of the case.
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Affiliation(s)
- V Sahni
- Department of Medicine, Maulana Azad Medical College and Associated Lok Nayak Hospital, New Delhi-110002, India
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Wadhwa A, Sessler DI, Sengupta P, Hanni K, Akça O. Core temperature measurements through a new airway device, perilaryngeal airway (CobraPLA). J Clin Anesth 2005; 17:358-62. [PMID: 16102686 DOI: 10.1016/j.jclinane.2004.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2003] [Accepted: 10/05/2004] [Indexed: 11/21/2022]
Abstract
STUDY OBJECTIVE The aim of this study was to test the hypothesis that the intraoperative pharyngeal temperatures obtained on the perilaryngeal airway (PLA), a novel airway device with a larger pharyngeal cuff (when inflated) than the laryngeal mask airway, are similar to tympanic membrane core temperatures. DESIGN This study is a prospective, simultaneous device comparison. SETTING This study was set at a university hospital. PATIENTS The study patients included 14 adults with American Society of Anesthesiologists physical statuses I and II, scheduled for minor gynecological or orthopedic surgery. INTERVENTIONS A PLA was inserted into the pharynx after induction of general anesthesia. Thermocouples were positioned at 3 sites on the PLA: (1) posterior portion of the head of the airway (tip), (2) midposterior portion of the cuff, and (3) left and right lateral-posterior portions of the cuff. Tympanic membrane thermocouples were inserted. MEASUREMENTS Temperature readings from the airway and the tympanic membrane thermocouples were recorded every 15 minutes throughout surgery. MAIN RESULTS Temperatures recorded from the lateral-posterior cuff were found to be virtually identical to tympanic membrane temperatures, with 97% of the values differing by less than 0.5 degrees C. Readings from the other 2 sites on the cuff differed considerably more from tympanic membrane values. CONCLUSIONS These data suggest that the PLA can be adapted to monitor core temperature reliably.
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Affiliation(s)
- Anupama Wadhwa
- Outcomes Research Institute and Department of Anesthesiology, University of Louisville, KY 40202, USA.
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Sahni V, Agarwal SK, Singh NP, Anuradha S, Sikdar S, Wadhwa A, Kaur R. Candidemia--an under-recognized nosocomial infection in Indian hospitals. J Assoc Physicians India 2005; 53:607-11. [PMID: 16190129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
OBJECTIVE To study the occurrence of candidemia as a nosocomial infection in a large Indian teaching hospital and to evaluate the predisposing factors for development of such infections. METHODS One hundred and one hospitalized patients that developed signs and symptoms of nosocomial bloodstream infections were screened for candidemia and were analyzed for the various predisposing factors like the age of the patient, the duration of hospitalization before the development of fever, neutropenia, use of chemotherapeutic agents, central venous catheters, broad spectrum antibiotics, infection with HIV, diabetes mellitus, use of corticosteroids, administration of total parenteral nutrition, haemodialysis, use of mechanical ventilation, hematological or other malignancies, underlying disease, and any surgical procedure performed on the patient. Candidemic patients were followed up for outcome and the effect of nosocomial candidemia on mortality was assessed and analyzed statistically. RESULTS Out of the 101 patients, seven patients had candidemia, an incidence in study population of 6.9%. Three (42.8%) were infected with albicans and the rest with non-albicans candidemia. All the patients with candidemia were admitted in the Intensive Care Units. Amongst the risk factors, the length of hospitalization (p = 0.018), broad-spectrum antibiotics (p = 0.045), central venous catheters (p = 0.005), mechanical ventilation (p = 0.0139) and total parenteral nutrition (p = 0.001) were found to be significantly related to acquisition of nosocomial candidemia. Mortality in the candidemic patients was influenced only by the age of the patients (p = 0.001). Although the mortality amongst the candidemic patients was twice as much as that of the patients not having this infection, still the difference did not reach significance (p = 0.117). CONCLUSION Candidemia is an important problem in Indian hospitals. Diagnostic delays could be shortened by more active screening for candidemia especially in the intensive care settings. The rising incidence of non-albicans candidemia in the United States probably is true here as well. There should be a concerted effort to control known risk factors especially in intensive care units.
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Affiliation(s)
- V Sahni
- Department of Medicine, Maulana Azad Medical College, New Delhi-110002
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Wadhwa A, Sengupta P, Durrani J, Akça O, Lenhardt R, Sessler DI, Doufas AG. Magnesium sulphate only slightly reduces the shivering threshold in humans. Br J Anaesth 2005; 94:756-62. [PMID: 15749735 PMCID: PMC1361806 DOI: 10.1093/bja/aei105] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Hypothermia may be an effective treatment for stroke or acute myocardial infarction; however, it provokes vigorous shivering, which causes potentially dangerous haemodynamic responses and prevents further hypothermia. Magnesium is an attractive anti-shivering agent because it is used for treatment of postoperative shivering and provides protection against ischaemic injury in animal models. We tested the hypothesis that magnesium reduces the threshold (triggering core temperature) and gain of shivering without substantial sedation or muscle weakness. METHODS We studied nine healthy male volunteers (18-40 yr) on two randomly assigned treatment days: (1) control and (2) magnesium (80 mg kg(-1) followed by infusion at 2 g h(-1)). Lactated Ringer's solution (4 degrees C) was infused via a central venous catheter over a period of approximately 2 h to decrease tympanic membrane temperature by approximately 1.5 degrees C h(-1). A significant and persistent increase in oxygen consumption identified the threshold. The gain of shivering was determined by the slope of oxygen consumption vs core temperature regression. Sedation was evaluated using a verbal rating score (VRS) from 0 to 10 and bispectral index (BIS) of the EEG. Peripheral muscle strength was evaluated using dynamometry and spirometry. Data were analysed using repeated measures anova; P<0.05 was statistically significant. RESULTS Magnesium reduced the shivering threshold (36.3 [SD 0.4] degrees C vs 36.6 [0.3] degrees C, P = 0.040). It did not affect the gain of shivering (control, 437 [289] ml min(-1) degrees C(-1); magnesium, 573 [370] ml min(-1) degrees C(-1); P=0.344). The magnesium bolus did not produce significant sedation or appreciably reduce muscle strength. CONCLUSIONS Magnesium significantly reduced the shivering threshold. However, in view of the modest absolute reduction, this finding is considered to be clinically unimportant for induction of therapeutic hypothermia.
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Affiliation(s)
- Anupama Wadhwa
- Assistant Professor, OUTCOMES RESEARCH™ Institute and Department of Anesthesiology and Perioperative Medicine, University of Louisville
| | - Papiya Sengupta
- Research Fellow, OUTCOMES RESEARCH™ Institute, University of Louisville
| | - Jaleel Durrani
- Resident, Department of Anesthesiology and Perioperative Medicine, University of Louisville
| | - Ozan Akça
- Assistant Director OUTCOMES RESEARCH™ Institute, Assistant Professor Department of Anesthesiology and Perioperative Medicine, Director Neurosciences Intensive Care Unit, University of Louisville
| | - Rainer Lenhardt
- Assistant Director OUTCOMES RESEARCH™ Institute, Assistant Professor Department of Anesthesiology and Perioperative Medicine, Director Neurosciences Intensive Care Unit, University of Louisville
| | - Daniel I. Sessler
- Vice Dean for Research, Associate Vice President for Health Affairs, Director OUTCOMES RESEARCH™ Institute, Lolita & Samuel Weakley Distinguished University Research Chair, Professor of Anesthesiology and Pharmacology, University of Louisville
| | - Anthony G. Doufas
- Assistant Professor and Director of Research, Department of Anesthesiology and Perioperative Medicine and OUTCOMES RESEARCH™ Institute, University of Louisville
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Sengupta P, Sessler DI, Maglinger P, Wells S, Vogt A, Durrani J, Wadhwa A. Endotracheal tube cuff pressure in three hospitals, and the volume required to produce an appropriate cuff pressure. BMC Anesthesiol 2004; 4:8. [PMID: 15569386 PMCID: PMC535565 DOI: 10.1186/1471-2253-4-8] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2004] [Accepted: 11/29/2004] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND: Cuff pressure in endotracheal (ET) tubes should be in the range of 20-30 cm H2O. We tested the hypothesis that the tube cuff is inadequately inflated when manometers are not used. METHODS: With IRB approval, we studied 93 patients under general anesthesia with an ET tube in place in one teaching and two private hospitals. Anesthetists were blinded to study purpose. Cuff pressure in tube sizes 7.0 to 8.5 mm was evaluated 60 min after induction of general anesthesia using a manometer connected to the cuff pilot balloon. Nitrous oxide was disallowed. After deflating the cuff, we reinflated it in 0.5-ml increments until pressure was 20 cmH2O. RESULTS: Neither patient morphometrics, institution, experience of anesthesia provider, nor tube size influenced measured cuff pressure (35.3 +/- 21.6 cmH2O). Only 27% of pressures were within 20-30 cmH2O; 27% exceeded 40 cmH2O. Although it varied considerably, the amount of air required to achieve a cuff pressure of 20 cmH2O was similar with each tube size. CONCLUSION: We recommend that ET cuff pressure be set and monitored with a manometer.
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Affiliation(s)
- Papiya Sengupta
- Outcomes Research™ Institute, University of Louisville, 501 E. Broadway, Suite 210, Louisville, KY 40202, USA
| | - Daniel I Sessler
- Outcomes Research™ Institute, University of Louisville, 501 E. Broadway, Suite 210, Louisville, KY 40202, USA
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, 530 S. Jackson St. University Hospital, Louisville, KY 40202, USA
| | - Paul Maglinger
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, 530 S. Jackson St. University Hospital, Louisville, KY 40202, USA
| | - Spencer Wells
- School of Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Alicia Vogt
- School of Medicine, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jaleel Durrani
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, 530 S. Jackson St. University Hospital, Louisville, KY 40202, USA
| | - Anupama Wadhwa
- Outcomes Research™ Institute, University of Louisville, 501 E. Broadway, Suite 210, Louisville, KY 40202, USA
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, 530 S. Jackson St. University Hospital, Louisville, KY 40202, USA
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Akça O, Wadhwa A, Sengupta P, Durrani J, Hanni K, Wenke M, Yücel Y, Lenhardt R, Doufas AG, Sessler DI. The New Perilaryngeal Airway (CobraPLA™) Is as Efficient as the Laryngeal Mask Airway (LMA™) but Provides Better Airway Sealing Pressures. Anesth Analg 2004; 99:272-278. [PMID: 15281543 PMCID: PMC1364541 DOI: 10.1213/01.ane.0000117003.60213.e9] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Laryngeal Mask Airway (LMA) is a frequently used efficient airway device, yet it sometimes seals poorly, thus reducing the efficacy of positive-pressure ventilation. The Perilaryngeal Airway (CobraPLA) is a novel airway device with a larger pharyngeal cuff (when inflated). We tested the hypothesis that the CobraPLA was superior to the LMA with regard to insertion time and airway sealing pressure and comparable to the LMA in airway adequacy and recovery characteristics. After midazolam and fentanyl administration, 81 ASA physical status I-II outpatients having elective surgery were randomized to receive an LMA or CobraPLA. Anesthesia was induced with propofol (2.5 mg/kg IV), and the airway was inserted. We measured 1) insertion time; 2) adequacy of the airway (no leak at 15-cm-H2O peak pressure or tidal volume of 5 mL/kg); 3) airway sealing pressure; 4) number of repositioning attempts; and 5) sealing quality (no leak at tidal volume of 8 mL/kg). At the end of surgery, gastric insufflation, postoperative sore throat, dysphonia, and dysphagia were evaluated. Data were compared with unpaired Student's t-tests, chi2 tests, or Fisher's exact tests; P < 0.05 was significant. Patient characteristics, insertion times, airway adequacy, number of repositioning attempts, and recovery were similar in each group. Airway sealing pressure was significantly greater with CobraPLA (23 +/- 6 cm H2O) than LMA (18 +/- 5 cm H2O, P < 0.001). The CobraPLA has insertion characteristics similar to the LMA but better airway sealing capabilities.
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Affiliation(s)
- Ozan Akça
- Assistant Director, Outcomes Research™ Institute; Assistant Professor, Department of Anesthesiology; University of Louisville
- Address correspondence to Dr. Ozan Akça, OUTCOMES RESEARCH™ Institute, 501 E. Broadway, Suite 210, Louisville, KY 40202; Tel.: 502-852-2607; Fax: 502-852-2610; e-mail:. On the world wide web: www.or.org
| | - Anupama Wadhwa
- Assistant Professor, Outcomes Research™ Institute and Department of Anesthesiology, University of Louisville
| | - Papiya Sengupta
- Research Fellow, Outcomes Research™ Institute and Department of Anesthesiology, University of Louisville
| | - Jaleel Durrani
- Resident, Department of Anesthesiology, University of Louisville
| | - Keith Hanni
- Student, University of Louisville School of Medicine
| | - Mary Wenke
- Nurse Anesthetist, Department of Anesthesiology, University of Louisville
| | - Yüksel Yücel
- Research Fellow, Outcomes Research™ Institute and Department of Anesthesiology, University of Louisville
| | - Rainer Lenhardt
- Assistant Director, Outcomes Research™ Institute; Assistant Professor, Department of Anesthesiology; University of Louisville
| | - Anthony G. Doufas
- Assistant Professor, Outcomes Research™ Institute and Department of Anesthesiology; University of Louisville
| | - Daniel I. Sessler
- Associate Dean of Research, Director Outcomes Research™ Institute, Lolita and Samuel Weakley Distinguished University Research Chair, Professor of Anesthesiology and Pharmacology, University of Louisville
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Doufas AG, Wadhwa A, Shah YM, Lin CM, Haugh GS, Sessler DI. Block-dependent sedation during epidural anaesthesia is associated with delayed brainstem conduction. Br J Anaesth 2004; 93:228-34. [PMID: 15220178 PMCID: PMC1361808 DOI: 10.1093/bja/aeh192] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Neuraxial anaesthesia produces a sedative and anaesthetic-sparing effect. Recent evidence suggests that spinal cord anaesthesia modifies reticulo-thalamo-cortical arousal by decreasing afferent sensory transmission. We hypothesized that epidural anaesthesia produces sensory deafferentation-dependent sedation that is associated with impairment of brainstem transmission. We used brainstem auditory evoked potentials (BAEP) to evaluate reticular function in 11 volunteers. METHODS Epidural anaesthesia was induced with 2-chloroprocaine 2%. Haemodynamic and respiratory responses, sensory block level, sedation depth and BAEP were assessed throughout induction and resolution of epidural anaesthesia. Sedation was evaluated using verbal rating score (VRS), observer's assessment alertness/sedation (OAA/S) score, and bispectral index score (BIS). Prediction probability (PK) was used to associate sensory block with sedation, as well as BIS with other sedation measures. Spearman's rank order correlation was used to associate block level and sedation with the absolute and interpeak BAEP latencies. RESULTS Sensory block level significantly predicted VRS (PK=0.747), OAA/S score (PK=0.748) and BIS. BIS predicted VRS and OAA/S score (PK=0.728). The latency of wave III of BAEP significantly correlated with sedation level (rho=0.335, P<0.01) and sensory block (rho=0.394, P<0.01). The other BAEP parameters did not change during epidural anaesthesia. Haemodynamic and respiratory responses remained stable throughout the study. CONCLUSIONS Sedation during epidural anaesthesia depends on sensory block level and is associated with detectable block-dependent alterations in the brainstem auditory evoked responses. Sensory deafferentation may reduce CNS alertness through mechanisms related to brainstem neural activity.
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Affiliation(s)
- A G Doufas
- Outcomes Research Institute and Department of Anesthesiology, University of Louisville, KY 40202, USA.
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Lin CM, Neeru S, Doufas AG, Liem E, Shah YM, Wadhwa A, Lenhardt R, Bjorksten A, Sessler DI, Kurz A. Dantrolene Reduces the Threshold and Gain for Shivering. Anesth Analg 2004; 98:1318-24, table of contents. [PMID: 15105208 PMCID: PMC1454474 DOI: 10.1213/01.ane.0000108968.21212.d7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
UNLABELLED Dantrolene is used for treatment of life-threatening hyperthermia, yet its thermoregulatory effects are unknown. We tested the hypothesis that dantrolene reduces the threshold (triggering core temperature) and gain (incremental increase) of shivering. Healthy volunteers were evaluated on 2 random days: control and dantrolene (approximately 2.5 mg/kg plus a continuous infusion). In Study 1, 9 men were warmed until sweating was provoked and then cooled until arteriovenous shunt constriction and shivering occurred. Sweating was quantified on the chest using a ventilated capsule. Absolute right middle fingertip blood flow was quantified using venous-occlusion volume plethysmography. A sustained increase in oxygen consumption identified the shivering threshold. In Study 2, 9 men were given cold lactated Ringer's solution i.v. to reduce core temperature approximately 2 degrees C/h. Cooling was stopped when shivering intensity no longer increased with further core cooling. The gain of shivering was the slope of oxygen consumption versus core temperature regression. In Study 1, sweating and vasoconstriction thresholds were similar on both days. In contrast, shivering threshold decreased 0.3 +/- 0.3 degrees C, P = 0.004, on the dantrolene day. In Study 2, dantrolene decreased the shivering threshold from 36.7 +/- 0.2 to 36.3 +/- 0.3 degrees C, P = 0.01 and systemic gain from 353 +/- 144 to 211 +/- 93 mL.min(-1).degrees C(-1), P = 0.02. Thus, dantrolene substantially decreased the gain of shivering, but produced little central thermoregulatory inhibition. IMPLICATIONS Dantrolene substantially decreases the gain of shivering but produces relatively little central thermoregulatory inhibition. It thus seems unlikely to prove more effective than conventional muscle relaxants for treatment of life-threatening hyperthermia.
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Affiliation(s)
- Chun-Ming Lin
- Research Fellow, Outcomes Research™ Institute, University of Louisville
| | - Sharma Neeru
- Research Fellow, Department of Anesthesia, Washington University
| | - Anthony G. Doufas
- Assistant Professor, Outcomes Research™ Institute and Department of Anesthesiology, University of Louisville
| | - Edwin Liem
- Assistant Professor, Outcomes Research™ Institute and Department of Anesthesiology, University of Louisville
| | - Yunus Muneer Shah
- Research Fellow, Outcomes Research™ Institute, University of Louisville
| | - Anupama Wadhwa
- Research Fellow, Outcomes Research™ Institute, University of Louisville
| | - Rainer Lenhardt
- Assistant Director, Outcomes Research™ Institute; Assistant Professor, Department of Anesthesiology, University of Louisville
| | - Andrew Bjorksten
- Clinical Research Scientist, Department of Anaesthesia and Pain Management, Royal Melbourne Hospital
| | - Daniel I. Sessler
- Associate Dean for Research, Director Outcomes Research™ Institute, Lolita and Samuel Weakley Distinguished University Research Chair, Professor of Anesthesiology and Pharmacology, University of Louisville
| | - Andrea Kurz
- Professor and Chair, Department of Anesthesia, University of Bern; Associate Professor, Department of Anesthesia, Washington University; Professor and Associate Director, Outcomes Research™ Institute, University of Louisville
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Abstract
BACKGROUND Women generally report greater sensitivity to pain than do men, and healthy young women require 20% more anesthetic than healthy age-matched men to prevent movement in response to noxious electrical stimulation. In contrast, minimum alveolar concentration (MAC) for xenon is 26% less in elderly Japanese women than in elderly Japanese men. Whether anesthetic requirement is similar in men and women thus remains in dispute. The authors therefore tested the hypothesis that the desflurane concentration required to prevent movement in response to skin incision (MAC) differs between men and women. METHODS Using the Dixon "up and down" method, the authors determined MAC for desflurane in 15 female and 15 male patients (18-40 yr old) undergoing surgery. RESULTS MAC was 6.2 +/- 0.4% desflurane for women versus 6.0 +/- 0.3% for men (P = 0.31), a difference of only 3%. These data provide 90% power to detect a 9% difference between the groups. CONCLUSIONS The MAC of desflurane did not differ between young men and women undergoing surgery with a true surgical incision. Although pain sensitivity may differ in women versus men, MAC of desflurane does not.
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Affiliation(s)
- Anupama Wadhwa
- Department of Anesthesiology, University of Louisville, Kentucky, USA
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Wadhwa A. Covalent linking of bone morphogeneic protein-2 to resorbable plates. Otolaryngol Head Neck Surg 2003. [DOI: 10.1016/s0194-5998(03)01015-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
BACKGROUND AND PURPOSE Hand warming and face warming, combined with inhalation of heated air, are reported to suppress shivering. However, hand or face temperature contributes only a few percent to control of shivering. Thus, it seems unlikely that manipulating hand or facial skin temperature alone would be sufficient to permit induction of therapeutic hypothermia. We tested the hypothesis that focal arm (forearm and hand) warming or lower facial warming, combined with inhalation of heated and humidified gas, only minimally reduces the shivering threshold (triggering core temperature). METHODS We studied 8 healthy male volunteers (18 to 40 years of age) on 3 days: (1) control (no warming), (2) arm warming with forced air at approximately 43 degrees C, and (3) face warming with 21 L/min of air at approximately 42 degrees C at a relative humidity of 100%. Fluid at approximately 4 degrees C was infused via a central venous catheter to decrease tympanic membrane temperature 1 degrees C/h to 2 degrees C/h; mean skin temperature was maintained at 31 degrees C. A sustained increase in oxygen consumption quantified the shivering threshold. RESULTS Shivering thresholds did not differ significantly between the control (36.7+/-0.1 degrees C), arm-warming (36.5+/-0.3 degrees C), or face-warming (36.5+/-0.3 degrees C; analysis of variance, P=0.34) day. The study was powered to have a 95% probability of detecting a difference of 0.5+/-0.5 degrees C (mean+/-SD) between control and either of the 2 treatments at alpha=0.05. CONCLUSIONS Focal arm or face warming did not substantially reduce the shivering threshold in unanesthetized volunteers. It thus seems unlikely that these nonpharmacological modalities will substantially facilitate induction of therapeutic hypothermia.
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Affiliation(s)
- Anthony G Doufas
- Outcomes Research Institute, Department of Anesthesiology, University of Louisville, Louisville, KY, USA.
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Richards N, Schaner P, Diaz A, Stuckey J, Shelden E, Wadhwa A, Gumucio DL. Interaction between pyrin and the apoptotic speck protein (ASC) modulates ASC-induced apoptosis. J Biol Chem 2001; 276:39320-9. [PMID: 11498534 DOI: 10.1074/jbc.m104730200] [Citation(s) in RCA: 210] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Patients with familial Mediterranean fever suffer sporadic inflammatory attacks characterized by fever and intense pain (in joints, abdomen, or chest). Pyrin, the product of the MEFV locus, is a cytosolic protein whose function is unknown. Using pyrin as a "bait" to probe a yeast two-hybrid library made from neutrophil cDNA, we isolated apoptotic speck protein containing a caspase recruitment domain (CARD) (ASC), a proapoptotic protein that induces the formation of large cytosolic "specks" in transfected cells. We found that when HeLa cells are transfected with ASC, specks are formed. After co-transfection of cells with ASC plus wild type pyrin, an increase in speck-positive cells is found, and speck-positive cells show increased survival. Immunofluorescence studies show that pyrin co-localizes with ASC in specks. Speck localization requires exon 1 of pyrin, but exon 1 alone of pyrin does not result in an increase in the number of specks. Exon 1 of pyrin and exon 1 of ASC show 42% sequence similarity and resemble death domain-related structures in modeling studies. These findings link pyrin to apoptosis pathways and suggest that the modulation of cell survival may be a component of the pathophysiology of familial Mediterranean fever.
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Affiliation(s)
- N Richards
- Department of Cell and Developmental Biology, The University of Michigan Medical School, Ann Arbor, Michigan, 48109-0616, USA
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Schaner P, Richards N, Wadhwa A, Aksentijevich I, Kastner D, Tucker P, Gumucio D. Episodic evolution of pyrin in primates: human mutations recapitulate ancestral amino acid states. Nat Genet 2001; 27:318-21. [PMID: 11242116 DOI: 10.1038/85893] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Familial Mediterranean fever (FMF; MIM 249100) is an autosomal recessive disease characterized by recurrent attacks of fever with synovial, pleural or peritoneal inflammation. The disease is caused by mutations in the gene encoding the pyrin protein. Human population studies have revealed extremely high allele frequencies for several different pyrin mutations, leading to the conclusion that the mutant alleles confer a selective advantage. Here we examine the ret finger protein (rfp) domain (which contains most of the disease-causing mutations) of pyrin during primate evolution. Amino acids that cause human disease are often present as wild type in other species. This is true at positions 653 (a novel mutation), 680, 681, 726, 744 and 761. For several of these human mutations, the mutant represents the reappearance of an ancestral amino acid state. Examination of lineage-specific dN/dS ratios revealed a pattern consistent with the signature of episodic positive selection. Our data, together with previous human population studies, indicate that selective pressures may have caused functional evolution of pyrin in humans and other primates.
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Affiliation(s)
- P Schaner
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, Michigan, USA
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Wadhwa A, Clarke D, Goodchild CS, Young D. Large-Dose Oral Dextromethorphan as an Adjunct to Patient-Controlled Analgesia with Morphine after Knee Surgery. Anesth Analg 2001. [DOI: 10.1213/00000539-200102000-00032] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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