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PREVALENCE AND INCIDENCE OF DYSNATREMIA IN A POPULATION OF CHRONICALLY INTUBATED PATIENTS FREE TO VIEW

Alfredo Vazquez Sandoval, MD*; Peter Yau, MD; Alejandro C. Arroliga, MD
Author and Funding Information

Scott and White Memorial Hospital/Texas A&M University, Temple, TX


Chest


Chest. 2009;136(4_MeetingAbstracts):30S. doi:10.1378/chest.136.4_MeetingAbstracts.30S
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Abstract

PURPOSE:  To investigate sodium abnormalities in a cohort of consecutive patients on chronic mechanical ventilation admitted to a long-term facility (chronic care hospital, CCH).

METHODS:  Retrospective, single center, observational cohort study of CCH patients admitted between November 2007 to September 2008.Subjects were included in the study during the set time period. A database was constructed with information from electronic records. Sodium and other electrolytes were gathered during admission, week two and discharge. Normal sodium range was set at 136 to 145 mEq/L.

RESULTS:  Eighty-six patients were admitted, 43% were female. Fifty-five patients (63%) came from a Medical Intensive Care Unit and thirty-one (37%) from a Surgical Intensive Care Unit. The mean age was sixty-six years old. On admission 14 of 86 patients (16%) were hypernatremic with a mean sodium of 149.5 mEq/L and 13 patients (15%) were hyponatremic with a mean sodium of 132.9 mEq/L. Twenty-four patients (28%) with normal sodium on admission had abnormal levels during the second week or at discharge. Twenty eight patients (32%) died and of those, twenty (71%) had a sodium abnormality on admission or during their hospital stay, twenty eight patients (32%) were discharged home, fourteen (50%) of them had a sodium abnormality at any point during their hospital stay.

CONCLUSION:  A high proportion of patients (31%) on chronic mechanical ventilation have sodium abnormalities on admission. Twenty-eight percent of patients with a normal sodium on admission developed and abnormal sodium during their stay at CCH.

CLINICAL IMPLICATIONS:  Dysnatremia is a frequent phenomenon in chronically ventilated patients. This may be associated with higher mortality and longer stay. Further investigation is necessary to correlate these findings with patient outcomes.

DISCLOSURE:  Alfredo Vazquez Sandoval, No Financial Disclosure Information; No Product/Research Disclosure Information

Tuesday, November 3, 2009

12:45 PM - 2:00 PM


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