Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Infections

Wounds and Injuries

Symptoms and General Pathology

Breast Neoplasms

Communicable Diseases

Wound Infection

Breast Diseases

Skin Diseases

Central Nervous System Depressants

All Drugs and Chemicals

Anti-Infective Agents

Anesthetics

Cefazolin

Anti-Bacterial Agents

Antibiotics, Antitubercular

The patients will receive 0.9% saline for intravenous bottle with 100ml looks identical to the antibiotic at the start of anesthetic induction

The patients will receive 2 g of cefazolin diluted in 0.9% saline by endovenous at the start of anesthetic induction

2 g of cefazolin diluted in 0.9% saline by endovenous, once, at the moment of anesthetic induction

0.9% saline sterile by endovenous, once, at the moment of anesthetic induction

sterile saline

The patient will be submitted to a conservative oncologic breast surgery

oncologic breast surgery

Samples for quantitative cultures will be obtained in the operating room before antisepsis and the end of surgery. A sample is also collected with the same patterning, on the first postoperative day, immediately after the removal of the dressing placed in the operating room. Will be passed in a standardized manner, a sterile swab soaked in saline over a standard 5cm by 10cm area determined by a field fenestrated sterile filter paper.

Microbiology

FABIOLA SM CAMPOS, MD

Breast cancer is the most frequent malignancy in the female population Brazilian, except non-melanoma skin tumors. Surgery plays an important role in regional spot disease control and the definition of parameters for the adjuvant treatment indication. Surgical site infections (SSI) are defined as wound infections occur following invasive procedures, corresponding to 14-16% of all infections nosocomial in hospitalized patients, the most common among patients surgical. SSIs should be examined as potential wound contamination surgical, understood as the number of micro-organisms in the body and / or tissue being operated. Considering this aspect, the cancer surgery breast are classified by their potential for contamination by clean. The use of antibiotics to prevent the SSI in mastectomies is not standardized in Handbook of National Health Surveillance Agency due to the effectiveness of undocumented prophylaxis Thus the use of antibiotics may vary among services. So this randomized clinical trial to evaluate the influence of the use of Prophylactic antibiotics in SSI rates in oncological breast surgery.

KIND OF STUDY:

Primary, clinical, prospective, randomized, two-parallel-group, double-blind, controlled, interventional, analytical. SAMPLE CALCULATION: based on proportions observed in a previous study with and without antibiotic use in breast surgery (VEIGA-Filho, 2010) the number calculated patients per group was 62, with a significance level of 5% and power 80% of the test. SELECTION: will be selected in Mastology outpatient clinics 124 female patients to be undergoing breast surgery for malignancy. The selection of patients will be divided in two groups PLACEBO (N = 62): receive 0.9% saline 100 ml intravenously and CEFAZOLIN GROUP (N = 62): receive 2 g of cefazolin diluted in 0.9% saline by endovenous. In both groups will be passed in a standardized manner, a sterile swab soaked in saline over a standard 5cm by 10cm area determined by a field fenestrated sterile filter paper. Preoperatively will default collection in the region higher interquadrantes breast to be operated immediately above areolopapilar complex, which is not included in the designated area for collection. At end surgery and also in the first postoperative day, the sterile field will be positioned with fenestration on the wound. Tha material will be Standard microbiological methods used to identify microoganismos. 0.2 ml aliquots of each sample are plated on agar media hypertonic mannitol, selective for Staphylococcus sp, Sabouraud agar with chloramphenicol (0.05mg / ml), selective for fungi, agar EMB Teague, selective for enterobacteria, and agar blood, for the presence of hemolytic colonies. After 48 hours, the reading of the number of colony forming units will be held by a microbiologist. Patients are regularly monitored for the occurrence of infection, once a week for the first 30 days by a single surgeon. They will be used and the definitions of surgical site infection classifications adopted by CDC

Antibiotic Prophylaxis in Oncological Surgery of Breast

Antibiotic Prophylaxis in Oncological Surgery of Breast: Randomized Clinical Trial

To evaluate the influence of antibiotic prophylaxis in surgical site infection rates

To evaluate the microbiota that infects the skin in oncological breast surgery

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Antibiotic Prophylaxis in Oncological Surgery of Breast	NCT02809729	Breast Neoplasm... Breast-Conservi... Wound Infection Antibiotic Prop...	Cefazolin sterile saline oncologic breas... Microbiology	30 Years - 75 Years	Universidade do Vale do Sapucai
Antibiotic Prophylaxis in Oncological Surgery of Breast	NCT02809729	Breast Neoplasm... Breast-Conservi... Wound Infection Antibiotic Prop...	Cefazolin sterile saline oncologic breas... Microbiology	30 Years - 75 Years	Universidade do Vale do Sapucai

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