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Vol. 21. Issue 6.
Pages 648-655 (November - December 2017)
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6128
Vol. 21. Issue 6.
Pages 648-655 (November - December 2017)
Review article
Open Access
Recommendations for outpatient parenteral antimicrobial therapy in Brazil
Visits
6128
Priscila R. Oliveiraa,
Corresponding author
priscila.rosalba@hc.fm.usp.br

Corresponding author.
, Vladimir C. Carvalhoa, Sergio Cimermanb,c, Ana Lucia Munhoz Limaa, on behalf of the Diretrizes Brasileiras para Terapia Antimicrobiana Parenteral Ambulatorial group
a Universidade de São Paulo, São Paulo, SP, Brazil
b Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
c Instituto de Infectologia Emílio Ribas, São Paulo, SP, Brazil
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Tables (6)
Table 1. Professionals required for an OPAT program and their attributes.
Table 2. Main characteristics for patient eligibility for OPAT.
Table 3. Types of central lines indicated for OPAT in Brazil.
Table 4. Recommendations and instructions for antimicrobial use in OPAT in Brazil.
Table 5. Recommendations of antimicrobials for pediatric patients in OPAT in Brazil.a
Table 6. Recommendations for routine monitoring in patients undergoing OPAT.
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Abstract

A panel of national experts was convened by the Brazilian Infectious Diseases Society in order to determine the recommendations for outpatient parenteral antimicrobial therapy (OPAT) in Brazil. The following aspects are covered in the document: organization of OPAT programs; patient evaluation and eligibility criteria, including clinical and sociocultural factors; diagnosis of eligibility; venous access and antimicrobial infusion devices; protocols for antimicrobial use and monitoring and cost-effectiveness.

Keywords:
Therapy
Outpatient infusion
Health planning recommendations
Brazil
Full Text
Introduction

The use of outpatient parenteral antimicrobial therapy (OPAT) as a treatment strategy with the aim of de-hospitalizing patients has been growing since its advent during the 1970s.1 OPAT has become a safe and standardized practice for patients presenting with various infections who require long-term parenteral antimicrobial therapy. International consensus guidelines have determined that OPAT can be performed in physicians’ offices, clinics, specialized infusion centers or in patients’ homes.2,3

Patients should be selected for this type of treatment by physicians who are familiar with the infectious conditions that will be treated. They should also be evaluated by nurses who have experience in implementing and managing long-term venous access, and by social workers who will decide whether patients present social, economic and cultural conditions that allow them to be safely treated this way. If patient evaluation and selection are performed adequately, OPAT is acknowledged to be safe, effective, practical and cost-effective.

Its impacts from economic and hospital bed-occupancy points of view are high, as are the undeniable benefits to patients’ (and their families’) quality of life. By decreasing patients’ need for and length of hospitalization, OPAT has also shown an impact through reducing healthcare-related infection rates.4–7

Organization of OPAT programs

The organization of OPAT programs should be hierarchical, such that patients are evaluated at an OPAT reference center before being sent to a healthcare unit where they will be treated with either a day-hospital regimen or through homecare. Likewise, every service that receives patients for OPAT needs to rely on a reference center to which patients can be promptly referred in the event of adverse events related to the treatment, along with the transportation logistics for such referrals. In addition to this referral and counter-referral organization, the structure of OPAT programs should always envisage the following:

  • Multidisciplinary team trained to make evaluations regarding patients’ eligibility for OPAT and to conduct follow-up on this type of therapy. These team should be led by a physician, preferably an infectious disease specialist with experience in using long-term parenteral antimicrobials. In addition, each team needs to include a nurse with experience in manipulating central venous access, and a social worker. A clinical pharmacist may also be included in the team, although this is still an uncommon professional in most Brazilian healthcare services. The functions of each of these professionals are described in Table 1. Other professionals can also be included in the team, according to the patient's profile and availability of the OPAT service provider.1

    Table 1.

    Professionals required for an OPAT program and their attributes.

    Professional  Main attributes within the team 
    Physician (preferably an infectious disease specialist)  - Team leadership;
    - Clinical evaluation of patient's infectious conditions and their comorbidities;
    - Determination of whether clinical stability allowing OPAT exists;
    - Prescription of the antimicrobial to be used;
    - Participation in the decision of what type of catheter should be used by patients;
    - Participation in assessments on patient's and caregiver's capacity for comprehension;
    - Initial evaluation on patients who are recommended for OPATa;
    - Clinical and laboratory monitoring of patients undergoing OPATa;
    - Clinical evaluation of possible events presented during treatment and decision on the need for transferring to the reference center for OPATa
    Nurse (with experience in manipulation of central catheters)  - Prescription of drug infusion procedures for OPATa (reconstitution and dilution of antimicrobials and duration of infusion) in accordance with the protocol;
    - Participation in the decision regarding what type of catheter should be used by patients;
    - Participation in assessments of patient's and caregiver's capacity for comprehension;
    - Supervision of antimicrobial infusion;
    - Daily inspection of the catheter insertion site and communication with the doctor in the event of abnormalities;
    - Minimum of once-weekly changing of dressings at catheter insertion site;
    - Patient guidance regarding catheter care;
    - Patient guidance regarding drug storage precautions;
    - Evaluation of patient's home sanitary conditions, in the event of referral for homecare OPATa
    Social worker  - Participation in assessments of patient's and caregiver's capacity for comprehension;
    - Documentation of patient's and their caregiver's consent to OPAT;
    - Evaluation of patient's social conditions for OPAT (especially transportation);
    - Establishment of contact between patient's hospitalization service or reference center for OPAT and the healthcare service where the therapy will take place. 
    Clinical pharmacist  - Participation in assessments of patient's and caregiver's capacity for comprehension;
    - Participation in prescription of drug infusion procedures for OPAT (antimicrobial reconstitution and dilution, and duration of infusion), in accordance with the protocol;
    - Patient guidance about drug storage precautions;
    - Participation in clinical and laboratory monitoring of patients undergoing OPAT. 

    OPAT, outpatient parenteral antimicrobial therapy.

  • Up-to-date protocols for the rational use of antimicrobials and manipulation of venous access.

  • Continuing educational programs to train the professionals involved in patient care within OPAT.

Patient evaluation and eligibility criteria for OPATClinical factors

The main patient eligibility criterion for OPAT programs is the need for long-term parenteral antimicrobial treatment, preferably based on culture and antibiogram results. Oral treatment should always be given preference in cases whenever possible. In addition, only patients who are clinically stable and whose infection and possible comorbidities are under control can be referred for OPAT.

Sociocultural and family-related factors

Patients referred for OPAT should have the social and/or familial support needed for the particular features of this therapy. They need to assume co-responsibility for the treatment, especially in relation to adherence to the therapy and maintenance of venous access. In cases in which drug infusion can be performed at the patient's home, team members should also certify that the location demonstrates the necessary conditions for safely performing venous infusions.

Patient's and caregiver's inability to comprehend the OPAT program, including catheter care and locomotion difficulties, should be considered an exclusion criterion for OPAT. It is not recommended that patients with histories of active alcoholism or drug addiction be candidates for this therapy practice, especially because of the risk of improper catheter manipulation. Table 2 shows the main characteristics to be evaluated for patient eligibility for OPAT.

Table 2.

Main characteristics for patient eligibility for OPAT.

Clinical factors  • Need for long-term parenteral antimicrobial treatment;
• Clinical stability;
• No histories of active alcoholism or drug addiction. 
Sociocultural and family-related factors  • Comprehension of OPAT and ability to collaborate;
• Ability to transport the patient to the infusion center, in cases of treatment under a day hospital regimen;
• Sanitary conditions of drug infusion at home, in cases of homecare. 

OPAT, outpatient parenteral antimicrobial therapy.

Diagnosis of eligibility for OPAT

Patients with diagnoses of the infections described below are considered eligible for treatment under an OPAT regimen:

  • Complicated upper respiratory tract infections, including malignant external otitis, necrotizing external otitis and rhinosinusitis8–11;

  • Respiratory infections, including complicated pneumonias, empyemas, lung abscesses, cystic fibrosis, exacerbations of the conditions of chronic obstructive pulmonary disease (COPD), infected bronchiectasis, community-acquired pneumonia, and nosocomial pneumonia12;

  • Microbiologically-proven endocarditis due to Streptococcus viridians13,14 in patients who do not present signs of possible complications of infectious endocarditis or predictors of poor prognosis. Patients with conditions related to other agents or without microbiological proof are not considered eligible for OPAT in Brazil;

  • Complicated infections of the urinary tract15,16;

  • Intra-abdominal infections, including secondary peritonitis, abscess, sepsis, cholecystitis with perforation or abscess, intra-abdominal abscess, appendicitis with perforation or abscess, stomach or intestinal perforation, peritonitis, diverticulitis with perforation, peritonitis or abscess.17,18 Patients are considered eligible for OPAT when they have stabilized and do not require new surgical interventions;

  • Skin and soft-tissue infections, including cellulitis, large abscesses, surgical wound infections, infected burns, infected ulcers, infected bites and pyomyositis.19,20 Patients are considered eligible for OPAT when they have stabilized and do not require surgical interventions;

  • Osteoarticular infections, including pyoarthritis, acute and chronic osteomyelitis, and orthopedic implant-related infections.5,21

Venous access and antimicrobial infusion devices

The type of medication, duration of therapy, frequency of antimicrobial administration, and condition of the patient's venous network should be taken into account when determining venous access mechanisms allowed for OPAT, either using peripheral or central devices. Central catheters are indicated in cases of parenteral antimicrobial treatment with an estimated duration longer than 14 days and when the prescribed antibiotics have a pH lower than five or higher than nine.

Valved catheters of the PICC type (peripherally inserted central catheter) should be the device of choice for performing OPAT. Semi-implantable or totally-implantable catheters can be used, especially if the patient is already using one of these devices. Use of short-term central venous catheters (double or mono-lumen) for OPAT is contra-indicated.

Use of peripheral venous access for OPAT is possible, but it requires certainty that the patient has a good-quality peripheral venous network.22Table 3 shows the types of central catheters indicated for OPAT in Brazil and their indications, duration, advantages and disadvantages.

Table 3.

Types of central lines indicated for OPAT in Brazil.

Type of central line  Indication  Duration  Characteristics 
Valved peripherally inserted central catheter (valved PICC)  Antimicrobial treatment with estimated duration longer than 14 days  Up to 6 months  - Cost-effective
- Easy insertion
- Lower incidence of infection
- Lower risk of air embolism and reflux
- Higher safety for homecare therapy 
Tunneled semi-implanted central catheter  Antimicrobial treatment with estimated duration longer than 14 days  Up to 6 months  - Surgical implantation
- Open extremity
- Blockage using heparin solution is needed
- Low risk of infection
- 2nd choice for treatment, when insertion of PICC is not possible 
Totally implanted central catheter  Antimicrobial treatment with estimated duration longer than 14 days  Up to 5 years  - High cost
- Surgical implantation
- Blockage using heparin solution is needed
- Access through Huber needle, replaced every seven days
- High risk of infection with daily manipulation (generally indicated for chemotherapy against cancer, which requires less manipulation)
- Indication only for OPAT should be avoided 

OPAT, outpatient parenteral antimicrobial therapy.

Depending on the patient's clinical conditions and comorbidities, larger or smaller dilution volumes may be required. In these cases, participation of a physician, nurse, and clinical pharmacist is important for prescribing and guiding drug dilution. Table 4 shows the general recommendations for reconstitution, dilution and infusion of antimicrobials used in OPAT, along with doses and posology of each drug envisaged. These recommendations can be modified according to the patient's clinical condition. Administration of antimicrobials in bolus form is not recommended.2 Antimicrobial infusion should preferentially be performed under supervision of a nurse with experience in manipulating central catheters, in accordance with the following recommendations5:

  • Prepare all materials to be used for antimicrobial infusion in advance;

  • Sanitize hands before and after manipulating the catheter. Procedure gloves must be used;

  • Before antimicrobial infusion, a flush using 0.9% saline solution should always be performed using 10mL syringes (never use syringes with smaller or larger volumes, because of the pressure difference and risk of catheter rupture). In the case of patients with semi-implanted catheters (Hickman, Broviac or Leonard type) or totally implanted catheters (port-a-cath), 5mL of blood should be aspirated before flushing, to remove the previously infused heparin solution;

  • During preparation for antimicrobial infusion, the recommendations for reconstitution, dilution and duration of administration of the antibiotics should be carefully followed;

  • At the end of the infusion, a new flush of 0.9% saline solution should be performed using a 10mL syringe;

  • For patients with semi-implanted catheters (Hickman, Broviac or Leonard type) or totally implanted catheters (port-a-cath), a seal should also be placed using 3–5mL of heparin solution (100IU/mL) after the last flush of saline solution. The catheter manufacturer's recommendations should be reviewed;

  • The dressing and catheter stabilizer (if present) should be changed every seven days. Use transparent film to observe the insertion site;

  • Communication between patients and their referral nurses is important in cases of possible accidents, such as catheter perforation, obstruction and exudation in the insertion area, or signs of bacteremia, phlebitis or thrombosis;

  • Do not use the catheter if there are signs of infection during its insertion (hyperemia or exudation in the skin around the catheter) or bacteremia. Immediately send the patient to the team that performed the insertion or that has been designated for dealing with adverse event occurrences;

  • In the event of obstruction, do not attempt to clear the catheter; in such cases, a peripheral venous puncture should be performed and the team that performed the insertion or that has been designated for dealing with adverse event occurrences should be contacted in order to schedule a new catheter insertion;

  • If the PICC has a caliber smaller than 3.8 Fr, blood must not be collected and blood byproducts must not be transfused.

Table 4.

Recommendations and instructions for antimicrobial use in OPAT in Brazil.

Antimicrobial  Dose and posology for normal renal and hepatic functions  Reconstitution  Dilution  Duration of infusion 
Amikacin  15mg/kg once a day  Not required  100–200mL of 0.9% SS, 5% GS or Ringer's lactate solution  30–60min 
×
Gentamicin  5mg/kg once a day  Not required  50–200mL of 5% GS  30–120min 
Cefepime  2g twice a day  10mL of sterile distilled water  50–100mL of 0.9% SS, 5% GS or Ringer's lactate solution  30min 
Ceftaroline  600mg twice a day  20mL of sterile distilled water  50–250mL of 0.9% SS, 5% GS or Ringer's lactate solution  30min 
Ceftazidime  2g twice a day  5–10mL of sterile distilled water  50–100mL of 0.9% SS, 5% GS or Ringer's lactate solution  30–60min 
Ceftriaxone  2g once a day  10mL of sterile distilled water  50–100mL of 0.9% SS, 5% GS or Ringer's lactate solution  15–30min 
Ertapenem  1g once a day  10mL of sterile distilled water  50mL of 0.9% SS  30min 
Meropenem  2g twice a day  20mL of sterile distilled water  250mL of 0.9% SS or 5% GS  60min 
Vancomycin  15mg/kg twice a day  10mL of sterile distilled water  200mL of 0.9% SS or 5% GS  60min 
Teicoplanin  6mg/kg once a day  10mL of sterile distilled water  50–100mL of 0.9% SS, 5% GS or Ringer's lactate solution  60min 
Daptomycin  4–6mg/kg once a day  10mL of 0.9% SS  50mL of 0.9% SS  30min 
Linezolid  600mg twice a day  Not required  50–100mL of 0.9% SS, 5% GS or Ringer's lactate solution  30–120min 
Tigecycline  50mg twice a day  Not required  50mL of 5% GS  30–60min 
Anidulafungin  100mg once a day  30mL of its own diluent  100mL of 0.9% SS or 5% GS  90min 
Caspofungin  50mg once a day  10mL of sterile distilled water  100mL of 0.9% SS  60min 
Micafungin  100mg once a day  5mL of 0.9% SS  50mL of 0.9% SS or 5% GS  60min 
Voriconazole  3–4mg/kg twice a day  19mL of sterile distilled water  200–250mL of 0.9% SS, 5% GS or Ringer's lactate solution  60–120v 
Amphotericin B (lipid complex)  5mg/kg once a day  20mL of sterile distilled water  200–500mL of 5% GS  120min 
Amphotericin B (liposomal)  3–5mg/kg once a day  10mL of sterile distilled water  200–500mL of 5% GS  120min 

0.9% SS, 0.9% saline solution; 5% GS, 5% glucose solution.

OPAT, outpatient parenteral antimicrobial therapy.

Protocols for antimicrobial use and monitoringAntimicrobial use within an OPAT regimen

Referral of patients for OPAT requires use of antimicrobial protocols adapted to this reality, especially regarding drug posology: the drugs need to be administered once or twice a day. The choice of antimicrobials should be based on culture and antibiogram results, if possible, and patient's comorbidities and possible drug interactions should be considered.5,2,23–26

In Brazil, the following antimicrobials are considered acceptable for use in OPAT: amikacin, gentamicin, ceftriaxone, cefepime, ceftazidime, ceftaroline, ertapenem, linezolid (when formulation for oral use is not available), tigecycline, daptomycin, teicoplanin, vancomycin, amphotericin B (lipid formulations), caspofungin, anidulafungin, micafungin and voriconazole (when formulation for oral use is not available). Meropenem was also included, considering this drug could safely be administered twice a day in patients with stable clinical condition.5,27Table 4 shows the dose and posology recommendations for using antimicrobials in OPAT in Brazil for patients with normal renal function, as well as recommendations for reconstitution, dilution and infusion of these drugs. Table 5 shows dose and posology recommendations for children outside of the neonatal period. In these cases, care regarding reconstitution, dilution and duration of infusion need to be specified in accordance with the instructions from the physician responsible for the case.

Table 5.

Recommendations of antimicrobials for pediatric patients in OPAT in Brazil.a

Antimicrobial  Dose and posology for normal renal and hepatic functions 
Amikacin  15mg/kg once a day 
Gentamicin  7mg/kg once a day 
Cefepime  50mg/kg/dose twice a day 
Ceftaroline  35–45mg/kg in 3 doses
Maximum dose 1200mg/day 
Ceftazidime  50mg/kg/dose twice a day 
Ceftriaxone  50mg/kg once a day
For meningitis, 50mg/kg/dose twice a day 
Ertapenem  15mg/kg/dose twice a day 
Meropenem  40mg/kg/dose twice a day 
Vancomycin  15mg/kg/dose twice a day 
Teicoplanin  6mg/kg once a day 
Daptomycin  There is no standardization 
Linezolid  10mg/kg/dose twice a day 
Tigecycline  There is no standardization 
Anidulafungin  There is no standardization 
Caspofungin  50mg/m2 once a day 
Micafungin  There is no standardization 
Voriconazole  4mg/kg/dose twice a day 
Amphotericin B (lipid complex)  5mg/kg once a day 
Amphotericin B (liposomal)  3–5mg/kg once a day 

OPAT, outpatient parenteral antimicrobial therapy.

a

For children over 28 days old.

Monitoring

Patients undergoing OPAT should be monitored from the clinical and laboratory points of view. Adverse events include catheter-related issues (insertion site infection, bacteremia, blood stream infection and air embolism), drug infusion-related problems, and side effects relating to the antimicrobial used. The entire multidisciplinary team needs to be alert to the occurrences of these events and be trained to take the necessary actions. The team should also be trained to detect possible hypersensitivity reactions (allergies) to antimicrobials, which may appear at any time during the treatment.

Laboratory drug monitoring should be conducted every two weeks for the majority of the drugs used. Because of the higher reported occurrence of renal side effects, patients using amikacin, gentamicin, vancomycin and amphotericin B (lipid formulations) should have weekly doses of urea and creatinine.5,2 When necessary, monitoring of serum levels of vancomycin can also be performed weekly.2Table 6 shows the monitoring recommendations for patients undergoing OPAT according to the antimicrobial used. These recommendations can be adapted according to the presence of comorbidities or particular situations of each patient.

Table 6.

Recommendations for routine monitoring in patients undergoing OPAT.

Antimicrobial  Minimum frequency of examinations to be performedObservations 
  Complete blood cell analysis  Renal evaluation (urea and creatinine)  Hepatic evaluation (ALT, AST, alkaline phosphatase and, gamma GT)  Potassium  CPK   
Amikacin  Every 14 days  Every 7 days  Every 14 days  Every 7 days  –  Ototoxicity may occur: monitor hearing and vestibular functions 
Gentamicin  Every 14 days  Every 7 days  Every 14 days  Every 7 days  –  Ototoxicity may occur: monitor hearing and vestibular functions 
Cefepime  Every 14 days  Every 14 days  Every 14 days  –  –   
Ceftaroline  Every 14 days  Every 14 days  Every 14 days  –  –   
Ceftazidime  Every 14 days  Every 14 days  Every 14 days  –  –   
Ceftriaxone  Every 14 days  Every 14 days  Every 7 days  –  –   
Ertapenem  Every 14 days  Every 14 days  Every 14 days  –  –  A decrease in the convulsive threshold may occur 
Meropenem  Every 14 days  Every 14 days  Every 14 days  –  –  A decrease in the convulsive threshold may occur 
Vancomycin  Every 7 days  Every 7 days  Every 7 days  Every 7 days  –  Serum level control (vancomycin) can be performed every 7 days 
Teicoplanin  Every 14 days  Every 14 days  Every 14 days  –  –   
Daptomycin  Every 14 days  Every 14 days  Every 14 days  –  Every 7 days   
Linezolid  Every 7 days  Every 14 days  Every 14 days  –  –  Optical neuropathy may occur: monitor visual acuity 
Tigecycline  Every 14 days  Every 14 days  Every 7 days  –  –  Nausea may occur even in the absence of hepatic enzyme alterations; consider concomitant administration of antiemetics 
Anidulafungin  Every 14 days  Every 14 days  Every 14 days  –  –   
Caspofungin  Every 14 days  Every 14 days  Every 14 days  –  –   
Micafungin  Every 14 days  Every 14 days  Every 14 days  –  –   
Voriconazole  Every 14 days  Every 14 days  Every 14 days  –  –   
Amphotericin B (lipid complex)  Every 7 days  Every 3 days  Every 7 days  Every 3 days  –  Weekly dose of magnesium may be necessary 
Amphotericin B (liposomal)  Every 7 days  Every 3 days  Every 7 days  Every 3 days  –  Weekly dose of magnesium may be necessary 

OPAT, outpatient parenteral antimicrobial therapy; AST, aspartate aminotransferase; ALT, alanine aminotransferase; Gamma GT, gamma glutamyl-transferase; CPK, creatine phosphokinase.

Cost-effectiveness

Implementation of an OPAT system has been shown to impact the number and duration of hospitalizations of patients with infections that require long-tern parenteral treatments. It also ensures favorable clinical outcomes and improves the patient's quality of life. In addition to individual benefits, OPAT enables better allocation of hospital beds and resources if implemented as a healthcare policy because it demonstrates high cost-effectiveness.

Studies conducted in other countries have shown that the cost of a patient treated with an OPAT regimen is between 40 and 75% lower than the cost of a patient who is treated with a hospital regimen. This resource saving can reach 40,000 dollars per patient.28–32 In Brazil, implementation of an OPAT program in a public orthopedics and trauma hospital was shown to enable reallocation of over 11,000 hospital beds for patients who required hospitalization.5

Therefore, it can be concluded that, in addition to the advantages mentioned above, implementation of OPAT strategies in Brazil can lead to better allocation of healthcare resources, both within the public National Health System and in the private (supplementary) system.

Conflicts of interest

  • -

    Priscila R. Oliveira: Declares participation in educational activities for MSD, Sanofi-Aventis, Bayer Schering Pharma, Pfizer and Abbott and has developed clinical research activities for MSD and Pfizer.

  • -

    Vladimir C. Carvalho: Declares participation in educational activities for MSD and Pfizer and has developed clinical research activities for MSD and Pfizer.

  • -

    Sergio Cimmerman: Declares participation in educational activities for Abbvie, BMS, Farmoquimica, Gilead, Janseen, MSD, United Medical.

  • -

    Ana Lucia M. Lima: Member of advisory board for Sanofi-Aventis. Declares participation in educational activities for MSD, Sanofi-Aventis, Bayer Schering Pharma, Pfizer and Abbott and has developed clinical research activities for MSD and Pfizer.

Acknowledgments

This document was produced under the responsibility of the Brazilian Society of Infectious Diseases. The organization of the meeting that enabled its preparation was supported by AstraZeneca, Bayer Schering Pharma, MSD, Pfizer and Sanofi. The sponsors did not interfere in the elaboration or content of these recommendations.

Appendix A

Diretrizes Brasileiras para Terapia Antimicrobiana Parenteral Ambulatorial group: Ana Cristina Gales, Universidade Federal de São Paulo; Bil Randerson Bassetti, Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória; Carla Sakuma de Oliveira, Universidade Estadual do Oeste do Paraná; Cassia da Silva Felix, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; César Leite, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; Eitan Naaman Berezin, Faculdade de Ciências Médicas da Santa Casa de São Paulo; Eliana Lima Bicudo dos Santos, Secretaria da Saúde do Distrito Federal; Guillermo S. Pinheiro de Lemos, Hospital de Urgências de Goiânia; Ivan Silva Marinho, Hospital e Maternidade São Camilo; Mariangela Ribeiro Resende, Universidade Estadual de Campinas; Marcos Cyrillo, Secretaria Municipal de Saúde de São Paulo; Mário Sérgio Lei Munhoz, Universidade Federal de São Paulo; Sylvia Maria de Lemos Hinrichsen, Universidade Federal de Pernambuco; Tania Mara Varejão Strabelli, Universidade de São Paulo.

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See Appendix A for members of Diretrizes Brasileiras para Terapia Antimicrobiana Parenteral Ambulatorial group.

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