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Complex Infectious Disease Issues in the Intensive Care Unit, An Issue of Infectious Disease Clinics of North America, E-Book

Complex Infectious Disease Issues in the Intensive Care Unit, An Issue of Infectious Disease Clinics of North America, E-Book

Naomi P. O'Grady | Sameer S Kadri

(2017)

Additional Information

Abstract

The Guest Editors, coming from the Critical Care Medicine Department in the NIH, are the top thought leaders in the area of infections in critical care. Their topic selections in this issue reflect the most clinically relevant and current information. The issue specifically covers the following topics: Catheter-related bloodstream infections: special considerations in diagnosis in the ICU; Sepsis-How does the new definition help clinicians; Therapeutic drug monitoring of antibiotics; High containment pathogen preparation; Multidrug resistant gram negative infections and enterococcus; Strategies to prevent transmission of resistant organisms; Antibiotic Stewardship: What the intensivist should know; C. Difficile infection in the ICU; Immunocompromised critically ill; Rapid diagnostics: The use of procalcitonin; Respiratory viruses in the ICU: Significance of rhino/rsv updates/adenovirus metapneumovirus; Management of invasive fungal disease in the ICU; Inhaled/Nebulized antibiotics. Infectious disease physicians and intensivists will be armed with the information they need to diagnose and treat patients with infections in the ICU.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Complex InfectiousDisease Issues in theIntensive Care Unit\r i
Copyright\r ii
Contributors iii
CONSULTING EDITOR iii
EDITORS iii
AUTHORS iii
Contents vii
Preface: On the Interface of Infectious Diseases and Critical Care Medicine vii
New Sepsis and Septic Shock Definitions: Clinical Implications and Controversies vii
Sepsis and Challenging Infections in the Immunosuppressed Patient in the Intensive Care Unit\r vii
Role of Procalcitonin in the Management of Infected Patients in the Intensive Care Unit vii
Severe Respiratory Viral Infections: New Evidence and Changing Paradigms vii
Invasive Fungal Infections in the Intensive Care Unit viii
Clostridium difficile Infection viii
Evaluation and Management of Necrotizing Soft Tissue Infections viii
Antimicrobial Stewardship Approaches in the Intensive Care Unit viii
Preventing Transmission of Multidrug-Resistant Pathogens in the Intensive Care Unit ix
Prevention of Central Line–Associated Bloodstream Infections ix
High-Containment Pathogen Preparation in the Intensive Care Unit ix
Inhaled Antibiotics for Ventilator-Associated Infections ix
INFECTIOUS DISEASE CLINICS\rOF NORTH AMERICA\r xi
FORTHCOMING ISSUES xi
December 2017 xi
March 2018 xi
June 2018 xi
RECENT ISSUES xi
March 2017 xi
June 2017 xi
December 2016 xi
Preface:\rOn the Interface of Infectious Diseases and Critical Care Medicine xiii
New Sepsis and Septic Shock Definitions 397
Key points 397
INTRODUCTION 398
SEPSIS BURDEN AND NEW QUALITY MEASURES 398
CHALLENGES IN DEFINING AND TRACKING SEPSIS 398
PRIOR SEPSIS DEFINITIONS 399
WHY REVISE THE DEFINITION? 399
SEPSIS-3: SEQUENTIAL ORGAN FAILURE ASSESSMENT, QUICK SEQUENTIAL ORGAN FAILURE ASSESSMENT, AND SEPTIC SHOCK 400
STRENGTHS OF SEPSIS-3 403
POTENTIAL WEAKNESSES AND CRITICISMS OF SEPSIS-3 403
Using the New Sepsis Criteria Has Not Been Shown to Improve Clinical Outcomes 403
Potential Delays in Early Identification and Treatment 404
Sequential Organ Failure Assessment Score: An Unfamiliar Clinical Tool Specific to the Intensive Care Unit 404
Neither Sequential Organ Failure Assessment nor Quick Sequential Organ Failure Assessment Helps Identify Infection 405
Risk of Confusion with Concurrent Definitions 405
PRESSING QUESTIONS AND CONTROVERSIES SURROUNDING SEPSIS-3 AND CLINICAL MANAGEMENT 405
Is There Still a Role for Systemic Inflammatory Response Syndrome Criteria? 405
Is Quick Sequential Organ Failure Assessment a Replacement for Systemic Inflammatory Response Syndrome? 406
What Is the Best Screening Tool for Sepsis? 406
What Is the Role of Lactate Testing with Sepsis-3? 407
Should Clinicians Routinely Measure Sequential Organ Failure Assessment Scores? 407
FINAL CAVEATS ON SEPSIS-3 407
SUMMARY 408
REFERENCES 409
Sepsis and Challenging Infections in the Immunosuppressed Patient in the Intensive Care Unit 415
Key points 415
INTRODUCTION 415
CLINICAL SYNDROMES 416
Vascular Access Device–Related Infections 416
Pneumonia 416
Mediastinitis 417
Acute Abdomen 418
Sepsis and Neutropenic Fever 418
Urinary Tract Infections 419
Organisms of Special Interest 419
Clostridium difficile 419
Nocardiosis 420
Pneumocystis jirovecii infections 420
Aspergillosis 421
Cytomegalovirus 421
Respiratory viruses 422
Noroviruses 423
Strongyloidiasis 423
SELECTED SEVERE INFECTIONS IN PATIENTS WITH HUMAN IMMUNODEFICIENCY VIRUS 424
Pneumonia and Human Immunodeficiency Virus 424
Sepsis and Human Immunodeficiency Virus 425
Toxoplasmosis, Cryptococcosis, Bartonellosis, and Human Immunodeficiency Virus 425
Endemic Fungal Infections and Human Immunodeficiency Virus 425
Cytomegalovirus and Human Immunodeficiency Virus 426
SUMMARY 426
REFERENCES 427
Role of Procalcitonin in the Management of Infected Patients in the Intensive Care Unit 435
Key points 435
INTRODUCTION 435
SEVERE COMMUNITY-ACQUIRED PNEUMONIA 436
Standard Diagnostic Methods 436
Addition of Molecular Diagnostics 436
Colonization or infection: procalcitonin 437
Procalcitonin levels distinguish viral and bacterial infection 437
Value of viral detection and procalcitonin levels in patients with community-acquired pneumonia 438
Influence of renal function on interpretation of serum procalcitonin levels 439
Two benefits of sequential procalcitonin levels 440
Community-acquired pneumonia summary 440
Community-acquired pneumonia: the future of diagnostics 441
SEPTIC SHOCK AND PROCALCITONIN 441
Case Presentations 441
Case 1 441
Case 2 441
Procalcitonin and Etiology of Shock 441
Translocation of Gut Bacteria 442
Serum Soluble CD14 (Presepsin) 442
Negative Predictive Value in Patients with Shock 443
Procalcitonin, Source Control, and Mortality 443
Procalcitonin Levels and Individualization of Treatment 444
Subsummary: What Does, and What Does Not, Increase the Serum Concentration of Procalcitonin? 444
SUMMARY 446
REFERENCES 446
Severe Respiratory Viral Infections 455
Key points 455
THE EVOLVING EPIDEMIOLOGY OF SEVERE RESPIRATORY INFECTIONS 456
RHINOVIRUS 458
Rhinovirus Infection in Adults 459
Clinical Presentation and Diagnosis 459
Treatment 460
HUMAN ADENOVIRUSES 460
Human Adenovirus Infection in Adults 460
Clinical Presentation and Diagnosis 461
Treatment 461
RESPIRATORY SYNCYTIAL VIRUS 462
Respiratory Syncytial Virus Infection in Adults 462
Clinical Presentation and Diagnosis 463
Treatment 464
HUMAN METAPNEUMOVIRUS 464
Human Metapneumovirus Infection in Adults 464
Clinical Presentation and Diagnosis 465
Treatment 465
CHALLENGES AND FUTURE DIRECTIONS 466
REFERENCES 466
Invasive Fungal Infections in the Intensive Care Unit 475
Key points 475
INVASIVE CANDIDIASIS 475
RISK FACTORS 476
DIAGNOSIS 476
PROPHYLAXIS AND TREATMENT 478
TREATMENT 478
ASPERGILLOSIS 479
DIAGNOSIS 479
TREATMENT 481
SUMMARY 482
REFERENCES 482
Clostridium difficile Infection 489
Key points 489
HISTORICAL BACKGROUND 489
INTENSIVE CARE UNIT ISSUES 490
CLINICAL FEATURES 490
RISK 490
TESTING FOR CLOSTRIDIUM DIFFICILE INFECTION 491
TREATMENT 491
ROLE OF SURGERY 492
RELAPSING CLOSTRIDIUM DIFFICILE INFECTION 492
STOOL TRANSPLANT 492
PREVENTION 493
FUTURE 493
REFERENCES 493
Evaluation and Management of Necrotizing Soft Tissue Infections 497
Key points 497
INTRODUCTION 497
PATHOPHYSIOLOGY 498
DIAGNOSIS 500
Clinical Assessment 500
Laboratory Values and Scoring Systems 500
Imaging 501
Bedside Exploration and Biopsy 503
TREATMENT 503
Antibiotic Therapy 503
Surgical Intervention 504
Adjuvant Therapies 506
SUMMARY 507
REFERENCES 507
Antimicrobial Stewardship Approaches in the Intensive Care Unit 513
Key points 513
CASE PRESENTATIONS 513
BACKGROUND 514
GENERAL ANTIMICROBIAL STEWARDSHIP APPROACHES 515
DIAGNOSIS 516
Host Response to Infection 517
The Role of Traditional Microbiology Testing 517
Rapid Microbial Identification and Susceptibility Testing 519
Diagnostic Testing Take-Home Points 520
EMPIRICAL THERAPY 520
Guidelines 520
Computerized Decision Support to Assist with Empirical Antibiotic Choice 521
Formulary Restriction 522
Allergy Testing 523
Antimicrobial Stewardship Strategies to Guide Empirical Therapy Take-Home Points 523
DEFINITIVE THERAPY 523
Prospective Audit and Feedback 524
Antibiotic Time-Out 524
Infectious Disease Physician Embedding Within the Intensive Care Unit Rounding Structure 524
Studies of Duration 525
Dosing Strategies 525
Antimicrobial Stewardship Strategies to Guide Definitive Therapy Take-Home Points 525
DEMONSTRATING EFFECTIVENESS 526
SUMMARY 526
REFERENCES 526
Preventing Transmission of Multidrug-Resistant Pathogens in the Intensive Care Unit 535
Key points 535
INTRODUCTION 535
Importance of Preventing Transmission of Resistant Organisms 536
Transmission of Resistant Organisms in the intensive Care Unit 536
ANTIMICROBIAL STEWARDSHIP 537
Hand Hygiene 537
MANAGEMENT OF ANTIBIOTIC-RESISTANT ORGANISM COLONIZATION 538
Microbial Screening 538
Isolation Precautions 539
Empiric Isolation 540
Decolonization and Skin Antisepsis 540
Preventing transmission from the intensive care unit environment 541
Preventing transmission of methicillin-resistant Staphylococcus aureus 542
Preventing transmission of vancomycin-resistant Enterococcus faecium 543
Preventing transmission of resistant gram-negative bacteria 543
Multidrug-resistant Acinetobacter baumannii 544
Candida auris 544
SUMMARY 545
REFERENCES 545
Prevention of Central Line–Associated Bloodstream Infections 551
Key points 551
INTRODUCTION 551
DEFINITIONS 551
CLOSED INTENSIVE CARE UNIT VERSUS OPEN INTENSIVE CARE UNIT 553
Site Selection for Catheterization 553
Do all Catheter Placements Require Ultrasonography Guidance? 553
What Kind of Venous Catheter Should Be Used? 554
Single-lumen versus multilumen catheters 554
Antibiotic-impregnated and antiinfective-impregnated catheters 554
Catheter removal 554
Guidewire exchange 555
Insertion Technique 555
Catheter Dressing and Maintenance 555
Chlorhexidine-impregnated dressings 555
Needleless securement devices 556
Disinfection caps 556
SUMMARY 557
REFERENCES 557
High-Containment Pathogen Preparation in the Intensive Care Unit 561
Key points 561
INTRODUCTION 561
THE ENVIRONMENT 562
Location of the Unit 562
Layout of the Care Space 562
Air Handling 563
Decontamination of the Environment 564
Equipment 564
Imaging and other diagnostic technology 564
Communication 564
Reusing equipment and supplies 565
Waste management 565
Transportation 565
CLINICAL CARE 566
Multidisciplinary Teams 566
Staffing 568
Personal Protective Equipment 568
Clinical Protocols 569
Laboratory Testing 570
Training 570
DISCUSSION 571
ACKNOWLEDGMENTS 571
REFERENCES 572
Inhaled Antibiotics for Ventilator-Associated Infections 577
Key points 577
INTRODUCTION 577
BACKGROUND 578
RATIONALE FOR AEROSOLIZED ANTIBIOTIC THERAPY IN VENTILATED PATIENTS 580
Inhaled Antibiotics Therapy for Prevention of Ventilator-associated Pneumonia 580
EVIDENCE FOR TREATING VENTILATOR-ASSOCIATED TRACHEOBRONCHITIS AND/OR VENTILATOR-ASSOCIATED PNEUMONIA: META-ANALYSES OF TREA ... 581
Rationale for Inhaled Colistin for Ventilator-associated Pneumonia 582
RANDOMIZED CONTROLLED TRIALS OF AEROSOLIZED ANTIBIOTICS FOR VENTILATOR-ASSOCIATED TRACHEOBRONCHITIS OR VENTILATOR-ASSOCIATE ... 584
HOW DO AEROSOLIZED ANTIBIOTICS AFFECT EMERGENCE OF BACTERIAL RESISTANCE COMPARED WITH SYSTEMIC ANTIBIOTICS? 585
FUTURE RESEARCH 587
SUMMARY 588
ACKNOWLEDGMENTS 588
REFERENCES 588