Chest
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Only one study has examined the clinical issues presented by critically ill obstetric patients with respect to medical indications for intensive care unit (ICU) admission and fetal and maternal morbidity and mortality. Therefore, a review of all obstetric patients admitted to a medical-surgical ICU in a large tertiary referral center over a five-year period was conducted. Obstetric, ICU-related, and diagnostic data were recorded for each patient. ⋯ Of the eight women admitted with viable pregnancies to the ICU, seven were delivered during the ICU stay and all fetuses survived. There was a high incidence of acute lung injury (25 percent) that was associated with nonpulmonary or pulmonary infection in all eight cases. However, the mortality was only 25 percent.
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The effect of transtracheal oxygen administration by means of a 9-French (2.7 mm) percutaneous catheter was assessed in five patients with severe obstructive sleep apnea. We hypothesized that the delivery of oxygen below the site of airway obstruction should reduce the arterial oxygen desaturation during apneas and hypopneas, thereby increasing respiratory stability. Standard sleep and respiratory measurements were recorded in these subjects with all-night polysomnography on nonconsecutive nights during four experimental conditions: room air (BL), nasal continuous positive airway pressure (CPAP), nasal O2 (NC O2), and transtracheal O2 (TT O2). ⋯ We believe that TT O2 is superior to NC O2 for some patients with obstructive sleep apnea because continuous oxygen flow below the site of airway obstruction more reliably prevents alveolar hypoxia and respiration is stabilized. Infusion of air or oxygen through the tracheal catheter flow may also increase mean airway pressure and reduce obstructive apnea similar to nasal CPAP. We conclude that TT O2 may be an effective alternative mode of therapy for some patients with severe sleep apnea/hypopnea when nasal CPAP is not tolerated or when combined oxygen and nasal CPAP are required.
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To determine and compare the incidence of concurrent bacterial lung infection in intubated and nonintubated patients with the acquired immunodeficiency syndrome (AIDS) and Pneumocystis carinii pneumonia (PCP) requiring medical intensive care unit (MICU) admission for support of their respiratory function. ⋯ The incidence of bacterial lung infections in our retrospective study of AIDS patients with PCP is remarkably less than in the general ICU population with respiratory failure and in our control patients with SCI, although the differences did not attain statistical significance. This finding may be related to antimicrobial therapy directed against P carinii. Endotracheal intubation in patients with AIDS and PCP, who were undergoing appropriate antimicrobial therapy, did not result in a significantly higher incidence of bacterial lung infections than in those who were not intubated. There was no significant difference in the incidence of bacterial lung infections between those AIDS/PCP patients who survived episodes of severe respiratory failure and those who did not. Endotracheal intubation should not be delayed or withheld from this patient population due to concerns of pulmonary bacterial superinfection.
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We undertook this study to determine the occurrence and the determinants of elevation of serum creatine kinase (CK) levels and CK MB-fraction following cardiopulmonary resuscitation (CPR). ⋯ CK elevation is a common finding following successful CPR after cardiac arrest and this elevation of post-CPR CK levels is related to both physical as well as electrical injury sustained during CPR. Elevation of post-CPR CK-MB fraction seems to be only a crude indicator of preexisting CAD; however, a positive CK-MB fraction in patients without CAD is related to severity of physical injury and electrical injury during CPR. Patients who survive CPR without neurologic impairment appear to be those with a shorter duration of CPR. Elevated serum potassium, phosphate, and creatinine values may be related to an adverse effect on long-term survival.
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An attempt to access the central venous circulation in a patient with a persistent left pleural effusion resulted in positioning the catheter within the pleural space. Chest roentgenograms with injection of contrast material revealed catheter location. Compliance with standard preventive practices may not assure correct placement of a central venous catheter via the internal jugular route in a patient with a hemothorax or effusion of unknown composition.