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F J Curley

Publications and source records attributed to F J Curley.

At least 19 recordsLinked to original sources
PubMed1998

From a prospective study of chronic cough: diagnostic and therapeutic aspects in older adults.

BACKGROUND: Cough is the most common complaint for which adults see a physician in the ambulatory setting in the United States. An anatomical diagnostic protocol has been used since 1981 to evaluate patients with chronic cough. It has been shown to be effective in diagnosing the cause of cough and leading to specific treatment in a variety of adult populations but has never been evaluated specifically in a population of older adults. OBJECTIVES: To question whether the spectrum and frequency of causes of chronic cough and the response to therapy would be different in older adults. METHODS: Thirty patients at least 64 years of age with a history of cough lasting at least 3 weeks were prospectively evaluated with a protocol designed to detect diseases that stimulate the afferent limb of the cough reflex. The final diagnosis of the cause of chronic cough required fulfillment of pretreatment criteria and having cough disappear with specific therapy. When more than one disease fulfilled pretreatment diagnostic criteria, therapy was instituted in the order that these were fulfilled. Probability statistics were used to describe the testing characteristics of individual components of the diagnostic protocol in terms of sensitivity, specificity, positive predictive value, and negative predictive value as they applied to chronic cough. RESULTS: Forty causes of chronic cough were identified in all 30 patients. Postnasal drip syndrome, gastroesophageal reflux disease, and asthma were the most common causes of chronic cough, accounting for 85% of all causes found. Among patients with normal chest radiograph findings who were not cigarette smokers and not taking an angiotensin-converting enzyme inhibitor, postnasal drip syndrome, gastroesophageal reflux disease, and asthma accounted for 100% of all causes found. Specific therapy was successful in eliminating chronic cough in 100% of the patients studied. Except for barium esophagography, all laboratory tests for which information was available had sensitivities and negative predictive values of 100%. CONCLUSIONS: Postnasal drip syndrome, gastroesophageal reflux disease, and asthma accounted for 85% of all causes of chronic cough in older adults. Chronic cough caused substantial physical and emotional morbidity among older patients. The major value of performing objective testing in evaluating chronic cough is its ability to rule out specific diseases as a diagnostic possibility. The following clinical profile consistently predicts patients with cough attributable to gastroesophageal reflux disease: the patient has cough that has been persistently troublesome for at least 3 weeks; does not smoke cigarettes; does not take an angiotensin-converting enzyme inhibitor; does not have or has not responded to therapy for postnasal drip syndrome and asthma; and has normal or nearly normal findings and stable chest radiograph. The differences between what we observed regarding chronic cough in older adults and observations by ourselves and others regarding chronic cough in general are minor.

Aged↗
PubMed1998

Transbronchial lung biopsy: can specimen quality be predicted at the time of biopsy?

STUDY OBJECTIVES: To determine the bronchoscopist's ability to predict specimen quality at the time of transbronchial biopsy and to determine the influence of biopsy specimen size and alveolar content on diagnostic value. DESIGN: Prospective, blinded, observational analysis. SETTING: Tertiary care academic hospital-based pulmonary practice. PATIENTS: Forty-three adult patients who underwent transbronchial lung biopsy. INTERVENTIONS: Each of 170 biopsy specimens was rated as to likelihood of containing diagnostic tissue, size and ability to float, tissue types present, number of alveoli, and pathologic diagnosis. RESULTS: Fifteen percent of biopsy specimens were small and 40% were large. Seventy-six percent of specimens floated; 61.8% of the 170 biopsy specimens contained abnormal lung tissue; and 14.7% of individual specimens were diagnostic. Fifty-two percent of specimens contained >20 alveoli. Larger biopsy specimens were more likely to contain diagnostic tissue (r=0.29, p=0.001). Cup forceps retrieved smaller pieces of tissue (p=0.007) and were less likely to obtain diagnostic tissue (p=0.06). Physician ratings of specimen quality (mean+/-SD) did not differ between specimens containing normal and abnormal tissue (5.98+/-2.3 vs 5.46+/-5.5; p=0.24) or between specimens containing diagnostic vs nondiagnostic tissue (5.56+/-2.5 vs 6.25+/-2.1; p=0.14). Specimens that floated were no more likely to be diagnostic or abnormal than specimens that sank (p<0.05). Diagnosis when established was made by the first biopsy specimen in 53.3% and the second in 33.3% CONCLUSIONS: Physician estimate of biopsy specimen quality and the float sign are not helpful in predicting that the biopsy specimen contains abnormal or diagnostic tissue. Diagnostic biopsy specimen will likely be obtained if the size of the specimen fills the forceps, 2 to 4 biopsies are performed, and toothed forceps are used.

Adult↗
PubMed1997

Interpretation of positive results of a methacholine inhalation challenge and 1 week of inhaled bronchodilator use in diagnosing and treating cough-variant asthma.

BACKGROUND: In diagnosing cough due to asthma, methacholine chloride inhalation challenge (MIC) interpreted in a traditional fashion has been shown to have positive predictive values from 60% to 82%. OBJECTIVE: To determine whether any features of positive results of an MIC or the results of a 1-week trial of inhaled beta-agonist therapy were helpful in predicting when the cough was due to asthma. METHODS: The study design was a prospective, randomized, double-blind, placebo-controlled, crossover format performed in adult, nonsmoking subjects, who were referred for diagnosis and treatment of chronic cough. The subjects had no other respiratory complaints or medical conditions for which they were taking medications, the results of baseline spirometry and chest roentgenograms were normal, and the results of MIC were positive. After obtaining baseline data, including MICs on 2 separate days, objective cough counting, and self-assessment of cough severity using a visual analog scale, subjects were randomized to receive 2 inhalations (1.3 mg) of metaproterenol sulfate or placebo by metered dose inhaler attached to a spacer device every 4 hours while awake. At 1 week, data identical to baseline were collected, and subjects received the other metered dose inhaler for 7 days. At 1 week, data identical to baseline were collected. After completion of the protocol, subjects were followed up in the clinic to observe the final response of the cough to specific therapy. RESULTS: Based on the disappearance of the cough with specific therapy, the cough was due to asthma in 9 of 15 subjects and nonasthma in 6 of 15 subjects. Baseline data were similar between groups. With respect to MICs, there were no significant differences between groups in the cumulative dose of methacholine that provoked a 20% decrease in forced expiratory volume in 1 second from the postsaline baseline value (PD20 values), slopes of dose-response curves, and maximal-response plateaus. Cough severity significantly improved after 1 week of metaproterenol use compared with the severity of the cough at baseline (P = .03) and with placebo (P = .02) only in subjects with asthma. CONCLUSIONS: No matter how the results are analyzed, positive MIC results, without observing response to therapy, are only consistent with asthma as the cause of the cough. The results are only diagnostic of asthma when they are followed by a favorable response to asthma therapy. After 1 week of inhaled beta-agonist, only the cough due to cough-variant asthma is significantly better.

Administration, Inhalation↗
PubMed1996

Predictive values of the character, timing, and complications of chronic cough in diagnosing its cause.

BACKGROUND: It is not clear whether careful history taking with detailed questioning of the characteristics of cough is diagnostically useful. OBJECTIVE: To determine if the character, timing, or complications of chronic cough were helpful in determining its cause. METHODS: A prospective, descriptive study of consecutive, unselected, immunocompetent patients referred to our university outpatient clinic because of chronic cough. All patients were evaluated by a previously published and validated systematic diagnostic protocol, a self-administered questionnaire, and by observing the character of involuntary and voluntary coughs. The final diagnosis of the cause of cough required fulfillment of pretreatment criteria plus having cough disappear or substantially improve as a complaint with specific therapy. RESULTS: Eighty-eight patients met inclusion criteria and were fully evaluated. The mean +/- SD age was 53.1 +/- 16 years (range, 15-83 years) and 24 were males and 64 were females with a mean +/- SD history of cough for 6.6 +/- 9.8 years (range, 1 month-44 years). The cause of chronic cough was established in 86 (98%) of 88 patients. Eighty-one (92%) of 88 had cough disappear as a complaint. Cough was as a result of a single cause in 39% and multiple causes in 59%. Gastroesophageal reflux disease, postnasal drip syndrome, and asthma were the 3 most common causes of chronic cough and accounted for 90% of diagnoses. Gastroesophageal reflux disease, postnasal drip syndrome, and asthma were again found to be the 3 most common causes of chronic cough irrespective of patient estimated quantity of daily sputum production. These 3 conditions caused chronic cough in 99.4% of patients with the following characteristics: (1) nonsmoker; (2) not receiving an angiotensin-converting enzyme inhibitor drug; and (3) normal or nearly normal and stable chest radiograph. With respect to the spectrum and frequency of diagnoses and their interrelationships with the character, timing, and complications of cough, multiple stepwise linear regression analysis showed that none of the variability of the character, timing, or complications of cough could be explained by any specific diagnosis. CONCLUSIONS: A carefully taken history with detailed questioning of the character, timing, and complications of chronic cough is not likely to be useful in diagnosing the cause of cough. The cause can be determined and successfully treated with specific therapy in the greatest majority of cases. Chronic cough is often caused by multiple, simultaneously contributing causes. Postnasal drip syndrome, asthma, and gastroesophageal reflux disease remain the 3 most common causes of chronic cough and there is a clinical profile that nearly always predicts their presence in immunocompetent patients.

Adolescent↗
PubMed1995

Chronic cough with a history of excessive sputum production. The spectrum and frequency of causes, key components of the diagnostic evaluation, and outcome of specific therapy.

STUDY OBJECTIVE: To determine (1) the spectrum and frequency of causes of chronic cough with a history of excessive sputum production (CCS) and (2) the response of these causes to specific therapy. STUDY DESIGN: Prospective study utilizing the anatomic diagnostic protocol originally developed to diagnose chronic cough. PATIENTS: Seventy-one immunocompetent adults who complained of expectoration of greater than 30 mL of sputum per day. LOCATION: University hospital pulmonary outpatient clinic. RESULTS: Patients were seen an average of 4.2 times over 4.6 months before a specific diagnosis was made. The cause of CCS was determined in 97%. It was due to one cause in 38%, 2 in 36%, and three in 26%. Postnasal drip syndrome (PNDS) was a cause 40% of the time, asthma 24%, gastroesophageal reflux disease (GERD) 15%, bronchitis 11%, bronchiectasis 4%, left ventricular failure 3%, and miscellaneous causes 3%. Among patients with a normal chest radiograph who were nonsmokers and not taking an angiotensin converting enzyme inhibitor; CCS was due to PNDS, or asthma, or GERD, or all three in 100% of cases. Chest radiograph, methacholine inhalation challenge, 24-h esophageal pH monitoring, bronchoscopy, and spirometry with bronchodilator each had a sensitivity and negative predictive value of 100%. Chest radiograph and barium swallow had positive predictive values of only 38% and 30%, respectively. CONCLUSIONS: (1) The anatomic diagnostic protocol for cough is also valid for CCS; (2) the major causes of chronic excessive sputum production and chronic cough are so similar that CCS should be considered a form of chronic cough; (3) the evaluation of CCS is more complicated and takes longer than the evaluation of chronic cough; (4) the major strength of the laboratory diagnostic protocol is that it reliably rules out conditions; (5) the outcome of specific therapy is almost always successful; and (6) the term "bronchorrhea" can be misleading if it is applied to excessive sputum production before a specific diagnosis of its source is made since the most common cause of excessive sputum that is expectorated (PNDS) is a disorder of the upper respiratory tract. Therefore, nonspecific therapies theoretically aimed at reducing mucus production in the lower respiratory tract are not likely to be helpful.

Adolescent↗
PubMed1994

Disasters within hospitals.

Hospital disaster planning should encompass events that affect the safety of the hospital environment and address those measures that ensure the availability of necessary services. Although most of the emphasis has been placed on general disaster planning, there is little written about disasters occurring within a hospital. In recent years, several incidents at our medical center involving fire, flood, and power failure resulted in a reevaluation of our preparedness to handle such situations. These experiences prompted this discussion and literature review of internal disaster plan because it is likely that at some time an internal emergency may occur.

Disaster Planning↗
PubMed1993

Difficult-to-control asthma. Contributing factors and outcome of a systematic management protocol.

To our knowledge, there are no published results of protocols for managing difficult to control asthma (DTCA) or of the spectrum and frequencies of reasons why asthma can be difficult to control (DTC). To assess the usefulness of a systematic management protocol and determine the reason(s) why asthmatics are DTC, we developed a protocol that systematically considered multiple factors that may make asthma worse and prospectively evaluated the outcomes of therapeutic interventions for these factors and of inhaled corticosteroids (ICS) and azathioprine. We studied 42 consecutive and unselected DTCAs (19 men and 23 women) whose age was 48 +/- 15.9 years. They had a diagnosis of asthma for 15.1 +/- 15.8 years, were DTC for 4.8 +/- 7.8 years, and were followed up by us in the study for a total of 3.5 +/- 1.9 years. Initially, the dose of prednisone was 30.2 +/- 22 mg/d. Following utilization of the protocol, 74 percent were no longer DTC. It took 1.8 +/- 1.7 years for them to no longer be DTC; they remained so for 1.8 +/- 1.5 years. In these patients, 2.7 +/- 1.2 factors appeared to be responsible for the DTC state; 80 percent had > or = 2. Improvement was more likely if gastroesophageal reflux (GER) was a factor (p = 0.014); it correlated with the addition of ICS (p = 0.04) and treatment for GER (p = 0.02). Failure to reverse DTCA correlated with the suspicion (p = 0.004) and admission of nonadherence (p = 0.04). In 14 patients given azathioprine, prednisone dose decreased from 45 +/- 25.3 to 13.3 +/- 21.6 mg/d (p = 0.003); 6 of 14 achieved no longer DTC status; and substantial morbidity occurred. The reason(s) for DTCA could be determined in most instances by utilizing a systematic protocol; multiple factors were responsible in the majority of cases; treatment for GER and ICS were the two most helpful interventions; nonadherence was the most likely reason suspected for maintaining DTCA; and azathioprine acted as a corticosteroid-sparing agent that should not be prescribed routinely.

Adolescent↗
PubMed1993

Chronic cough due to gastroesophageal reflux. Clinical, diagnostic, and pathogenetic aspects.

BACKGROUND: Gastroesophageal reflux (GER) is a common cause of chronic cough. Moreover, chronic cough can be the sole presenting manifestation of GER disease (GERD). It has been suggested recently that GER most often causes chronic cough by stimulating the distal esophagus. To gain further diagnostic and pathophysiologic knowledge, we prospectively evaluated a group of patients with chronic cough likely to be due to GER with extensive gastrointestinal and respiratory studies and then observed their response to antireflux therapy. METHODS: We prospectively characterized 12 subjects whose chronic cough was likely to be due to GER by chest radiographs, barium esophagography, 24-h esophageal pH monitoring (EPM) with probes in the distal and proximal esophagus, esophagoscopy, and bronchoscopy. Then, prior to instituting antireflux therapy, we objectively counted coughs during the distal esophageal infusion of 0.1 N HCl or 0.9 percent saline solution administered in a randomized, double-blind, standardized fashion (ie, Bernstein acid-perfusion test). RESULTS: Gastroesophageal reflux was determined to cause cough in all subjects based on disappearance of cough with antireflux therapy. It was clinically "silent" in 75 percent. The EPM was the test most frequently abnormal (sensitivity, 92 percent). Distal esophageal data revealed that 10 of 12 subjects had GER-induced coughs (12 +/- 12) while only 7 of 12 had an abnormal esophageal pH conventional parameter (eg, percent time pH < 4). Compared with the distal esophagus, GER to the proximal esophagus occurred (p = 0.017) and induced cough (p = 0.004) less often. Compared with baseline (9.3 +/- 17.6), there were no differences in coughs induced by the infusion of saline solution (9.2 +/- 15.9) or acid (15.1 +/- 26.7); the number of coughs induced by acid was negatively correlated with distal esophageal acid-GER events during EPM (r = -0.64, p = 0.01). Neither bronchoscopy nor chest radiographs were consistent with aspiration. CONCLUSIONS: There is a clinical profile that prospectively predicts which patients have chronic cough due to GER. The cough was most likely due to stimulation of the distal esophagus, not aspiration. Intraesophageal acid is unlikely to be the sole mediator in gastric juice causing the cough. While EPM is the single most helpful diagnostic test, conventionally utilized diagnostic indices of GERD can be misleadingly normal; observing GER-induced coughs is more frequently helpful.

Adult↗
PubMed1993

Appropriate use of antitussives and protussives. A practical review.

As a symptom of an underlying condition, cough is one of the most common reasons patients see physicians. To the majority, a cough means that 'something is wrong' and it causes exhaustion and/or self-consciousness. Patients find these reasons as well as effects on lifestyle, fear of cancer and/or AIDS or tuberculosis to be the most troublesome concerns for which they seek medical attention. The treatment of cough can be divided into two main categories: (a) therapy that controls, prevents or eliminates cough (i.e. antitussive); and (b) therapy that makes cough more effective (i.e. protussive). Antitussive therapy can be either specific or nonspecific. Definitive or specific antitussive therapy depends on determining the aetiology or operant pathophysiological mechanism, and then initiating specific treatment. Since the cause of chronic cough can almost always be determined, it is possible to prescribe specific therapy that can be almost uniformly successful. Non-specific antitussive therapy is directed at the symptom; it is indicated when definitive therapy cannot be given. Practically speaking, the efficacy of nonspecific therapy must be evaluated in double-blind, placebo-controlled, randomised studies of pathological cough in humans. Such studies have demonstrated the efficacy of dextromethorphan, codeine and ipratropium bromide aerosol in patients with chronic bronchitis. While the preferred treatment for patients with cough due to angiotensin converting enzyme (ACE) inhibitor therapy is withdrawal of the offending drugs, it may be possible to ameliorate the cough by adding nifedipine, sulindac or indomethacin to the treatment regimen. The efficacy of protussive therapy has not been well documented. Although hypertonic saline aerosol and erdosteine in patients with bronchitis, and amiloride aerosol in patients with cystic fibrosis have been shown to improve mucus clearance, their clinical utility has not been adequately studied.

Afferent Pathways↗
PubMed1990

Complications associated with thoracentesis. A prospective, randomized study comparing three different methods.

To determine what role the technique plays in complications associated with thoracentesis performed by physicians in training, we undertook a prospective study of thoracentesis in the medical service at our institution in which the sampling method was randomized among needle, needle with catheter, and needle with direct sonographic guidance. Fifty-two spontaneously breathing, cooperative patients with free-flowing effusions obliterating more than half of the hemidiaphragm on an upright, posteroanterior chest roentgenogram were randomized. When we analyzed those complications that were potentially life-threatening (eg, pneumothorax) and/or placed patients at increased risk for further morbidity (eg, pneumothorax, dry tap, inadequate tap), the sonography-guided method was associated with significantly fewer serious complications (0 of 19) than the needle-catheter (9 of 18) or needle-only methods (5 of 15). The sonography-guided method was associated with fewer pneumothoraces (0 of 19) than the needle-catheter (7 of 18) or needle-only methods (3 of 15). The difference between needle-catheter and needle-only methods was not significant. From our results, we conclude that the method by which thoracentesis was performed significantly influenced the spectrum and frequency of complications, and the sonography-guided method was the safest.

Catheterization↗
PubMed1990

Chronic cough. The spectrum and frequency of causes, key components of the diagnostic evaluation, and outcome of specific therapy.

A successful, systematic, anatomic, diagnostic protocol for evaluating patients with chronic cough was presented in 1981. To determine whether it was still valid, we prospectively evaluated, over a 22-month interval, 102 consecutive and unselected immunocompetent patients complaining of cough an average of 53 +/- 97 months (range, 3 wk to 50 yr). Utilizing the anatomic, diagnostic protocol modified to include prolonged esophageal pH monitoring (EPM), the causes of cough were determined in 101 of 102 (99%) patients, leading to specific therapy that was successful in 98%. Cough was due to one condition in 73%, two in 23%, and three in 3%. Postnasal drip syndrome was a cause 41% of the time, asthma 24%, gastroesophageal reflux (GER) 21%, chronic bronchitis 5%, bronchiectasis 4%, and miscellaneous conditions 5%. Cough was the sole presenting manifestation of asthma and GER 28 and 43% of the time, respectively. While history, physical examination, methacholine inhalational challenge (MIC), and EPM yielded the most frequent true positive results, MIC was falsely positive 22% of the time in predicting that asthma was the cause of cough. Laboratory testing was particularly useful in ruling out suspected possibilities. We conclude that the anatomic diagnostic protocol is still valid and that it has well-defined strengths and limitations.

Adolescent↗
PubMed1989

Chronic cough as the sole presenting manifestation of gastroesophageal reflux.

Nine patients complaining only of chronic cough of unknown cause were prospectively studied with prolonged esophageal pH monitoring (EPM) before and after cough had disappeared as a complaint in order to determine if and why gastroesophageal reflux (GER) was causing their coughs. Coughs disappeared as a complaint an average of 161 +/- 75 days after medical therapy for GER. Comparisons of pretreatment and post-treatment EPM data revealed the following: numbers of coughs (p = 0.029), total refluxes (p = 0.001), refluxes greater than or equal to 5 min (p = 0.019), and reflux-induced coughs (p = 0.005) had significantly decreased in the distal esophagus, and total refluxes (p = 0.05) had significantly decreased in the proximal esophagus. During the entire study period, the number of coughs were significantly correlated with the number of total refluxes (p = 0.039), longest reflux (p = 0.019), number of refluxes greater than or equal to 5 min (p = 0.006), and percent of total time that pH was less than 4 (p = 0.017) in the distal esophagus. On the basis of these results, we conclude that (1) cough can be the sole presenting manifestation of GER, and it gradually responds to standard GER therapy; (2) prolonged EPM is safe, well-tolerated, and extremely useful in diagnosing clinically silent GER; (3) the mechanism by which GER causes cough is related to a critical number and/or duration of reflux episodes in the distal and/or proximal esophagus.

Adult↗
PubMed1989

Cause and evaluation of chronic dyspnea in a pulmonary disease clinic.

To test whether, in patients with chronic dyspnea, a diagnostic approach based on objective confirmation of suspected diagnoses would be superior to one based on clinical impression alone, we prospectively studied 85 patients with a primary complaint of dyspnea seen in a pulmonary subspecialty clinic. We achieved 100% success in determining the causes of dyspnea compared with only 66% accuracy based on clinical impression alone. Four groups of disorders, asthma, chronic obstructive pulmonary disease, interstitial lung diseases, and cardiomyopathy accounted for two thirds of the cases. Findings on the history and physical examination were too nonspecific to determine the specific diagnosis. Pulmonary function testing, including a methacholine bronchoprovocation challenge, were the most useful diagnostic tests, particularly for chronic obstructive pulmonary disease and asthma. Chest roentgenogram was most useful for interstitial lung disease, and comprehensive exercise testing for dyspnea due to psychogenic factors or deconditioning. Specific therapy was effective in reducing or eliminating dyspnea in the majority of cases. We conclude that a diagnostic approach to chronic dyspnea based on objective findings and verification, rather than clinical impression alone, will consistently lead to an accurate diagnosis and an improved therapeutic outcome.

Adolescent↗
PubMed1988

'Toxic strep syndrome'. A manifestation of group A streptococcal infection.

Three patients presented with multisystem disease that shared many of the features of toxic shock syndrome. Bacteriologic and serologic evidence strongly suggested that group A beta-hemolytic Streptococcus had caused the illnesses. Group A streptococcal infection may be an underdiagnosed cause of a toxic streptococcal syndrome, a syndrome of multisystem disease apparently mediated by toxins.

Acute Kidney Injury↗
PubMed1988

Cough and the common cold.

To determine whether the cough of the common cold arises from upper respiratory stimuli and whether antihistamine-decongestant therapy is an effective treatment for this cough, we prospectively evaluated volunteers with uncomplicated common colds in a randomized, double-blind, placebo-controlled study. After completing a standardized questionnaire and undergoing a physical examination, throat-culturing, and pulmonary function testing, subjects took the active drug or identical-appearing placebo for 7 days while they kept a diary in which they ranked the severity of 17 symptoms for 14 days. Pulmonary function testing was repeated, on average, on Days 4, 8, and 14. Forty-six percent of the variation in cough severity could be explained by throat-clearing and 47% of the variation in throat-clearing severity by postnasal drip. FIF50%, the only physiologic parameter that significantly correlated with cough, rose as cough severity fell. Antihistamine-decongestant therapy reduced postnasal drip and significantly decreased the severity of cough, nasal obstruction, nasal discharge, and throat-clearing during the first few days of the common cold. In addition, cough was 20 to 30% less prevalent in the active drug group within 3 days of starting therapy. We conclude that the cough of the common cold arose from upper respiratory tract stimuli and that cough and other cardinal symptoms of the common cold were reduced with antihistamine-decongestant therapy when these symptoms were at their worst.

Adult↗