The Rhode Island ICU collaborative: a model for reducing central line-associated bloodstream infection and ventilator-associated pneumonia statewide.

BACKGROUND: Implementing bundles of best practices has been shown to provide patients with recommended care and reduce medical errors. Rhode Island's (RI) hospital leaders, quality organisations and insurers discussed the results of a quality improvement initiative in Michigan, the Keystone project, and explored the possibility of replicating these results statewide in RI. DESIGN: Hospital executives and intensive care unit (ICU) staff, RI's quality organisations, RI Quality Institute, Quality Partners of RI, and Hospital Association of RI and consultants from Johns Hopkins University, worked together to implement evidence-based interventions and change safety culture in RI's ICUs. OBJECTIVES: The authors describe the RI ICU Collaborative, funded by insurers and hospitals, and report on statewide central line-associated bloodstream infection (CLABSI) and ventilator-associated pneumonia (VAP) rates between 1 January 2006 and 30 June 2008. SUBJECTS: All adult ICU patients in RI. MEASURES: CLABSI and VAP rates. RESULTS: 100% of 23 ICUs in 11 hospitals participated in the RI ICU Collaborative. The statewide mean CLABSI rate decreased 74% from 3.73 (median 1.95) infections per 1000 catheter days to 0.97 (median 0) in quarter (Q) 2 (March-June) 2008 (p = 0.0032). The VAP rate fell 15% from 3.44 (median 0.58) to 2.92 VAPs (median 0) per 1000 ventilator days in Q2, 2008. CONCLUSION: The RI ICU Collaborative, a statewide quality improvement initiative, served as the platform by which multifaceted interventions were associated with reductions in CLABSI and VAP rates, and an increase in the use of evidence-based interventions. Completing Phase II, the RI ICU Collaborative continues to sustain these statewide reductions.

Lactic acidosis. Lactic acidosis associated with metformin use in treatment of type 2 diabetes mellitus.

Metformin, an antihyperglycemic, is widely used in the treatment of type 2 diabetes mellitus (DM). A rare, but important complication associated with this drug is the development of lactic acidosis: Overall mortality of lactic acidosis is approximately 50%. Certain subsets of patients taking metformin are at greater risk of developing lactic acidosis. This report discusses the development of metformin-associated lactic acidosis in four older adults admitted to an institution during a 2-month period, treatments, and outcomes. We recommend an aggressive treatment strategy of hemodialysis followed by peritoneal dialysis, continuous bicarbonate infusion, and tight glucose control. We review the cautions and contraindications of metformin use for the treatment of type 2 DM and report an educational plan for residents and staff instituted to improve drug complication awareness and reduce mortality.

Intensive care in patients with HIV infection in the era of highly active antiretroviral therapy.

STUDY OBJECTIVES: The use of highly active antiretroviral therapy (HAART) has dramatically improved morbidity and mortality in patients with HIV infection. The types of critical illness and their outcomes in HIV-infected patients in recent years is unknown. DESIGN: We reviewed the medical records of all patients admitted to the Medical ICU of Beth Israel Medical Center, NY, from January to June 2001 and compared their characteristics with patients admitted to the same unit from November 1991 to October 1992. RESULTS: Of 441 admissions in the first half of 2001, 63 admissions (14%) were in 53 HIV-seropositive patients. There were 65 admissions to the Medical ICU during the 1-year period spanning 1991 to 1992. Compared with the earlier period, the 2001 patients were more likely to be black (52% vs 26%, respectively; p < 0.01) and injection drug users (75% vs 48%, respectively; p < 0.01), and were less likely to be white (11% vs 23%, respectively; difference not significant) and homosexual men (6% vs 26%, respectively; p < 0.01). In 2001, patients were less likely to be admitted with respiratory failure (22% vs 54%, respectively; p < 0.01) and with Pneumocystis jiroveci pneumonia (formerly referred to as Pneumocystis carinii) [3% vs 34%, respectively; p < 0.001], and were more likely to be admitted with non-HIV-related diseases (67% vs 12%, respectively; p < 0.001). Overall survival was much higher in the later period (71% vs 49%, respectively; p < 0.01). CONCLUSIONS: In the era of HAART, more patients with HIV infection were admitted to the ICU over a 12-month period than were 10 years previously. Patients were more likely to be injection drug users and were more likely to be admitted to the ICU because of non-HIV-associated conditions.

Respiratory muscle strength training with nonrespiratory maneuvers.

The diaphragm and abdominal muscles can be recruited during nonrespiratory maneuvers. With these maneuvers, transdiaphragmatic pressures are elevated to levels that could potentially provide a strength-training stimulus. To determine whether repeated forceful nonrespiratory maneuvers strengthen the diaphragm, four healthy subjects performed sit-ups and biceps curls 3-4 days/wk for 16 wk and four subjects served as controls. The maximal transdiaphragmatic pressure was measured at baseline and after 16 wk of training. Maximum static inspiratory and expiratory mouth pressures and diaphragm thickness derived from ultrasound were measured at baseline and 8 and 16 wk. After training, there were significant increases in diaphragm thickness [2.5 +/- 0.1 to 3.2 +/- 0.1 mm (mean +/- SD) (P < 0.001)], maximal transdiaphragmatic pressure [198 +/- 21 to 256 +/- 23 cmH2O (P < 0.02)], maximum static inspiratory pressure [134 +/- 22 to 171 +/- 16 cmH2O (P < 0.002)], maximum static expiratory pressure [195 +/- 20 to 267 +/- 40 cmH2O (P < 0.002)], and maximum gastric pressure [161 +/- 5 to 212 +/- 40 cmH2O (P < 0.03)]. These parameters were unchanged in the control group. We conclude that nonrespiratory maneuvers can strengthen the inspiratory and expiratory muscles in healthy individuals. Because diaphragm thickness increased with training, the increase in maximal pressures is unlikely due to a learning effect.

Do-not-resuscitate and stratification-of-care forms in Rhode Island.

Congress passed the Patient Self-Determination Act of 1990 to ensure that patients are informed of their rights to express healthcare preferences in advance of loss of capacity. Thus, a patient may elect to forgo cardiopulmonary resuscitation in favor of a treatment approach that favors comfort over survival. Do-not-resuscitate and stratification-of-care forms provide a means for expression of healthcare preferences in hospitals. These forms can often guide the important discussion of healthcare preferences. Unfortunately, no clear standard exists for what should be included in do-not-resuscitate or stratification-of-care forms that institutions seeking to improve in this vital area of practice could use for guidance. Existing forms in use at adult general hospitals throughout Rhode Island were reviewed.

Respiratory muscle evaluation of the patient with neuromuscular disease.

This review presents clinically relevant issues regarding the assessment of respiratory muscles in individuals with neuromuscular disorders, and discusses the advantages and disadvantages of methods generally available to the clinician. Vital capacity (VC) and total lung capacity (TLC) are routinely measured in pulmonary function laboratories and are typically reduced in the context of severe respiratory muscle weakness, but the sensitivity and specificity of these measures are limited. Better measures of respiratory muscle weakness are maximal static inspiratory and expiratory pressures (PI max and PE max). PI max is reduced even with mild or moderate degrees of inspiratory muscle weakness, but low values also may be related to submaximal effort. To circumvent this problem, pressures can be measured using simpler maneuvers such as a maximal sniff. Specific tests of diaphragm function such as measurements of maximal transdiaphragmatic pressure are invasive and not routinely available to the clinician. Recently, noninvasive methods that specifically assess diaphragm function, such as diaphragm ultrasound of the zone of apposition and magnetic or electrophrenic nerve stimulation, have shown promise as new techniques for clinical use.