The size of the pneumothorax was approximated to be <15 percent (small), 15 to 50 percent (moderate), or >50 percent (large).
The number of patients with PCP and pneumothorax was compared to the number of patients without PCP and pneumothorax by the difference proportion test. Probability values of <0.05 were considered significant.
A total of 361 cases of AIDS were reported in Colorado between May 1982 and April 1987. Of the 361 patients, 261 (72 percent) had PCP on at least one occasion prior to the time of review. The three aforementioned teaching hospitals in Denver were responsible for the majority of care for 140 of the patients with AIDS. The charts of 134 of these 140 patients were available for review. Of these 134 patients, 89 (66 percent) had PCP, and the remaining 45 (34 percent) did not. Of the 45 patients without PCP, 25 (56 percent) had other pulmonary disease; nine had pleuropulmonary Kaposi’s sarcoma; seven, bacterial pneumonia; four, lymphoma; two, viral pneumonia; one, nonspecific pneumonitis; one, disseminated tuberculosis; and one, pulmonary edema. Eight (9.0 percent) of the 89 patients with PCP developed pneumothorax after a diagnosis of PCP was established (Table 1), compared with none (0 percent) of the 45 patients without PCP (p<0.03).
Table 1—Demographic and Clinical Characteristics of Patients with PCP and Pneumothorax
|Diagnosis of PCP||Coexisting Infection at time of PTX||Risk Factor for PTX||Size of PTX||ChestTube||Interval until Resolution, days|
|l/M/37||Heterosexual contact of IV drug user||OLBx||Cytomegalovirus||Ventilator PEEP = 10 cm same day as R = PTX, 15 d before L = PTX||>50%||Bilateral||2|
|2/M/M||Homosexual||TBBx||Cytomegalovirus||Ventilator PEEP = 15 cm 5 d before R= PTX, 7 d before L = PTX||>50%||Bilateral||0|
|3/M/33||Homosexual||TBBx||DisseminatedCryptococcus||Broviac catheter on right 3 d before R = PTX||15%-50%||No||10|
|5/M/46||Homosexual||Sputum Giemsa None||Ventilator PEEP = 5 cm 2 d before bilateral PTX||<15%||No||9|
|7/M/50||IV drug user||Sputum Giemsa None||None||>50%||No||15|
|8/M/29||Homosexual||Sputum Giemsa None||None||>50%||No||5|
Blog invites submissions of review articles, reports on clinical techniques, case reports, conference summaries, and articles of opinion pertinent to the control of pain and anxiety in dentistry.