Tracheal collapse versus tracheobronchomalacia: normal function versus disease.
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Adult↗
Biomedical subjects
Daniel Baram
Publications and source records attributed to Daniel Baram.
Growing PET positive nodule in a patient with histoplasmosis: case report.
BACKGROUND: Pulmonary histoplasmosis is a mycotic infection that often resembles pulmonary malignancy and continues to complicate the evaluation of pulmonary nodules. CASE PRESENTATION: We report a case of an immunocompetent patient who, despite adequate treatment for known histoplasmosis lung infection, presented with radiological and F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) findings mimicking primary lung malignancy which eventually required surgical resection. CONCLUSION: Histoplasmosis infection may radiologically resemble pulmonary malignancy, often causing a diagnostic dilemma. PET imaging is currently used for and considered accurate in the evaluation of pulmonary nodules. However, overlap in PET standardized uptake value (SUV) between granulomatous and malignant lesions decreases the accuracy of PET as a diagnostic modality. Future advances in PET imaging are needed to improve its accuracy in the evaluation of pulmonary nodules in areas where histoplasmosis is endemic.
Diagnosis, Differential↗
Pulmonary infiltration from chronic lymphocytic leukemia.
We present 2 patients with chronic lymphocytic leukemia infiltration of the lung resulting in centrilobular nodularity on computed tomography. We present the x-ray and computed tomography patterns with pathological findings in these cases.
Bronchoscopy↗
Sedation during mechanical ventilation: a trial of benzodiazepine and opiate in combination.
OBJECTIVE: To compare the efficacy of continuous intravenous sedation with midazolam alone vs. midazolam plus fentanyl ("co-sedation") during mechanical ventilation. DESIGN: A randomized, prospective, controlled trial. SETTING: A ten-bed medical intensive care unit at a university hospital. PATIENTS: Thirty patients with respiratory failure who were expected to require >48 hrs of mechanical ventilation and who were receiving a sedative regimen that did not include opiate pain control. INTERVENTIONS: An intravenous infusion of either midazolam alone or co-sedation was administered by a nurse-implemented protocol to achieve a target Ramsay Sedation Score set by the patient's physician. Study duration was 3 days, with a brief daily "wake-up." MEASUREMENTS AND MAIN RESULTS: We recorded the number of hours/day that patients were "off-target" with their Ramsay Sedation Scores, the number of dose titrations per day, the incidence of patient-ventilator asynchrony, and the time required to achieve adequate sedation as measures of sedative efficacy. We also recorded sedative cost in U.S. dollars and adverse events including hypotension, hypoventilation, ileus, and coma. Compared with the midazolam-only group, the co-sedation group had fewer hours per day with an "off-target" Ramsay Score (4.2 +/- 2.4 and 9.1 +/- 4.9, respectively, p < .002). Fewer episodes per day of patient-ventilator asynchrony were noted in the co-sedation group compared with midazolam-only (0.4 +/- 0.1 and 1.0 +/- 0.2, respectively, p < .05). Co-sedation also showed nonsignificant trends toward a shorter time to achieve sedation, a need for fewer dose titrations per day, and a lower total sedative drug cost. There was a trend toward more episodes of ileus with co-sedation compared with midazolam-only (2 vs. 0). CONCLUSIONS: In mechanically ventilated patients, co-sedation with midazolam and fentanyl by constant infusion provides more reliable sedation and is easier to titrate than midazolam alone, without significant difference in the rate of adverse events.
Analgesics, Opioid↗
Stable patients receiving prolonged mechanical ventilation have a high alveolar burden of bacteria.
INTRODUCTION: In patients receiving prolonged mechanical ventilation (PMV), quantitative bronchoscopic culture has not been validated for the diagnosis of ventilator-associated pneumonia (VAP). OBJECTIVE: To measure the alveolar burden of bacteria in patients receiving PMV. SETTING: Respiratory care units of a university hospital and a long-term care facility. PATIENTS: Fourteen patients requiring PMV without clinical evidence of pneumonia. MEASUREMENTS: Quantitative culture of BAL from the right middle lobe and lingula. RESULTS: In 29 of 32 lobes, there was growth of at least one organism at > 10(4) cfu/mL. Most lobes had polymicrobial growth. CONCLUSIONS: Stable patients receiving PMV without clinical pneumonia have a high alveolar burden of bacteria. The bacterial burden in most patients exceeds the commonly accepted threshold for diagnosing VAP. The utility of quantitative bronchoscopic culture in the diagnosis of VAP in this patient population requires further study.
Aged↗
Impact of rapid on-site cytologic evaluation during transbronchial needle aspiration.
STUDY OBJECTIVE: To determine the extent to which rapid on-site cytologic evaluation (ROSE) of transbronchial needle aspiration (TBNA) samples can safely and cost-effectively reduce the need for additional biopsy during bronchoscopy. SETTING: University Hospital in Long Island, NY. PATIENT AND METHODS: Forty-four bronchoscopies with TBNA, most of which utilized ROSE, were evaluated prospectively. The number and types of biopsies performed during each procedure were compared to a preprocedural algorithm to determine the impact of knowing ROSE results during the procedure. Bronchoscopies performed with and without ROSE were compared, as were bronchoscopies with diagnostic and nondiagnostic ROSE results. A cost analysis was performed comparing the Medicare reimbursement for ROSE to the savings of deferring multiple biopsies. RESULTS: Thirty-two bronchoscopies were performed with ROSE; 12 were performed without ROSE. Fewer biopsies were performed during bronchoscopies utilizing ROSE. Diagnostic yield, TBNA sensitivity and accuracy, and procedural time were similar between these two groups. CONCLUSIONS: ROSE during TBNA allows for deferring additional biopsy without loss in diagnostic yield, likely lowers procedural risk, and is cost-effective.
Algorithms↗
A case of hypercapnic respiratory failure.
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Humans↗
Palliation of endobronchial disease: flexible and rigid bronchoscopic options.
Many patients with lung cancer develop airway obstruction and hemoptysis. Endoscopic palliation can relieve symptoms and improve the quality of life for many patients. Patient factors, lesion characteristics and location, and regional expertise are important to consider when planning therapy. Cost, convenience, time to relief of symptoms, duration of palliation, and the need for serial procedures should also be considered. Further advances in technology will likely allow better palliation in the future. A wide armamentarium of modalities and careful communication with the patient's other providers are essential for optimal patient outcome.
Bronchoscopes↗