Formal adult infectious disease specialist consultations in the outpatient setting at a comprehensive cancer center (1998-2008): diverse and impactful

Non-infectious diseases in infectious disease consultation: A descriptive study in a tertiary care teaching hospital

In this retrospective study, we aimed to investigate the frequency, trend, and nature of non-infectious diseases (non-IDs) as the final diagnosis for patients during an infectious disease (ID) consultation in an acute care hospital in Japan. This study included adult inpatients who underwent ID consultations between October 2016 and March 2018. The demographic data, clinical manifestations, and final non-ID diagnoses of cases were explored. Among the 502 patients who underwent ID consultations, 45 (9.0%) were diagnosed with non-IDs. The most common diagnoses were tumors (22.2%, n = 10), connective tissue and collagen vascular diseases (13.3%, n = 6), other inflammatory diseases (8.9%, n = 4), and drug-induced fever (8.9%, n = 4). Multiple logistic regression analysis showed that the presence of consultations for diagnosis (odds ratio [OR], 22.0; 95% confidence interval [CI], 10.1-48.2; p<0.01), consultations from the internal medicine department (OR, 2.5; 95% CI, 1.2-5.2; p = 0.02), and non-bacteremia cases (OR, 5.2; 95% CI, 1.4-19.3; p = 0.01) were independently associated with diagnosed non-IDs. Non-IDs after ID consultations were mainly tumor-related, inflammatory diseases, and drug fever. The presence of consultations for diagnosis, consultations from the internal medicine department and non-bacteremia cases were related to non-IDs among ID consultations. Further research is needed to explore the frequency and pattern of non-IDs to improve the quality of ID consultations in daily practice.

Infectious disease specialist consultations in a Japanese cancer center: a retrospective review of 776 cases

Background

Little is known about the impact of infectious disease (ID) consultations on the management of patients with cancer. This study aimed to describe the consultation services provided by ID specialists to all departments in a comprehensive cancer center in Japan.

Methods

We conducted a retrospective review of ID consultations with adult patients at a comprehensive cancer center in Japan from April 2017 to March 2018.

Results

During the study period, 776 patients with cancer had an ID consultation. Of these, 414 (53.4%) were hospital inpatients. Reasons for the ID consultation comprised clinical management (n = 481, 62.0%), immunization (n = 272, 35.1%), and infection control (n = 23, 3.0%). Of the 474 ID consultations for diagnostic purposes, the most frequent condition was fever or elevated inflammatory markers of unknown origin (n = 125, 26.4%). The most frequent diagnoses after the diagnostic ID consultation were hepatobiliary infections (n = 97, 22.4%), respiratory infections (n = 89, 20.618.8%), and intra-abdominal infections (n = 71, 16.4%). The commonest reasons for immunization consultations were to prevent seasonal influenza (n = 193, 71.0%) and post-splenectomy vaccination (n = 58, 21.3%). The commonest reasons for infection control consultations were suspected tuberculosis or contact with tuberculosis (n = 11, 47.8%) and herpes zoster infection (shingles) (n = 7, 30.4%).

Conclusions

ID specialists play an important role in the clinical management of patients with cancer. ID physicians who work in cancer centers need to be specialized in treating IDs, diagnosing the causes of fevers of unknown origin, and controlling infection.

Acute myeloid leukemia and the infectious diseases consultant

Infectious complications following treatment of acute myeloid leukemia (AML) are important causes of morbidity and mortality. The spectrum and complexity of these infections is reflected by the severe net state of immunosuppression of AML patients, that is dynamic and continuously changing, the polypharmacy, including the widespread use of anti-infectives and the complex epidemiology of severe and frequently resistant pathogens afflicting these patients. Infectious diseases (ID) consultants having a critical mass of expertise and intimate knowledge of the intricacies of leukemia care, add considerable value in improving outcomes of patients with AML who develop infections. Furthermore, pharmaco-economic considerations such as length of stay, choice of cost-effective anti-infective program, infection control and antibiotic stewardship strategies create a delicate interplay of the ID consultant and the ecosystem of care of AML patients. This is an increasingly recognized area of cross collaboration and a productive direction for future collaborative practice models and research.

[Infectious diseases as a clinical specialty in Germany and Europe]

Clinical infectious diseases have only slowly been established as a medical specialty in Germany. The density of infectious diseases (ID) specialists and the number of ID divisions in general hospitals is still limited when compared with the situation in many other European countries, and there is also a lack of hospital-based medical microbiologists and infection control doctors for many reasons. Often, there is a lack of understanding of the roles and the performance of ID specialists versus microbiologists. Experience in other countries shows that ID specialists are important as clinical experts at the bedside, can help ascertain healthcare quality and patient safety, and are perfectly suited for undertaking strategic tasks in the field of cost-effective antimicrobial therapy algorithms and antibiotic stewardship (ABS) in hospitals. ID specialists are responsible for infection control in several countries, can improve the utility of diagnostic microbiology and are key partners in translational research. We estimate that more than 1,000 additional ID specialists are needed in this country, and believe that specially trained ABS experts can take over parts of their responsibilities and tasks in smaller hospitals. More capacity and flexibility in postgraduate training in infectious diseases, antibiotic stewardship and infection control in Germany will be critical to address the problem of antimicrobial resistance. (As supplied by publisher).

Inpatient infectious disease consultations requested by surgeons at a comprehensive cancer center

PURPOSE

The aim of this study was to describe the value of infectious disease specialist consultations for surgeons at comprehensive cancer centers.

METHODS

A total of 151 cancer surgery inpatients were retrospectively assessed during a 12-month period. We focused on the characteristics of the infectious disease consultations from surgical departments: the referring surgical divisions, the referral phases, and the reasons for the infectious disease consultations.

RESULTS

Three-quarters of all consultation requests were made after the day of surgery. Approximately, 60 % of these requests were made within 30 days after surgery for cancer. The reasons for the infectious disease consultations could be classified into three categories: diagnosis and management (54 %), management of established infections (44 %), and surgical antimicrobial prophylaxis (3 %). The most requested reason for consultations was the diagnosis and management of fever or elevated inflammatory markers of unknown etiology. Among the management of established infections, the antimicrobial management of surgical site infections was most frequently requested.

CONCLUSIONS

Many surgeons would prefer infectious disease specialists to assume a more direct role in the care of difficult or perplexing cases (such as fevers of unknown origin) while also maintaining a traditional relationship in which the consultant recommends antimicrobial agents during a perioperative period. Particularly at cancer centers where oncology specialists account for a significant proportion of the providers, the knowledge and skill of infectious disease physicians are valued.

The impact of infectious diseases consultation on oncology practice

PURPOSE OF REVIEW

Traditional utilization of infectious diseases consultants by oncologists ranges from inpatient management of a variety of acute infectious syndromes to management of ambulatory patients with acute or chronic infections; however, there is a paucity of data to evaluate in which circumstances the impact of infectious diseases input may be most valuable.

RECENT FINDINGS

Data derived from the general population of patients emphasize the value of infectious diseases consultation in specific infections, such as Staphylococcus aureus bacteremia, candidemia, and hepatitis C virus infection. In addition, infectious diseases involvement has been associated with greater adherence to guidelines (up to 34% increase), more appropriate antibiotic utilization (up to 52% increase in appropriate duration), decreased cost and complications of care, and lower mortality (up to 17% decrease). Recent studies suggest that bedside, formal infectious diseases consultation is more optimal than informal interactions (e.g., e-mail, telephone, other). Furthermore, infectious diseases consultants play central roles in antibiotic stewardship, infection control, and quality improvement, particularly in oncology centers.

SUMMARY

Infectious diseases consultants contribute value in various inpatient and outpatient infections, decreasing mortality, cost, and complications.