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350 Questionnaire Awareness of decreased drainage: N ¼ 35 (10%) excellent, N ¼ 210 (60%) good, N ¼ 42 (12%) fair, and N ¼ 63 (18%)

Postoperative rhinorrhea: N ¼ 8 (24%) severe, N ¼ 18 (55%) mild, and N ¼ 7 (21%) symptomless

Preoperative rhinorrhea: N ¼ 4 (12%) severe and N ¼ 21 (66%) mild Postoperative: N ¼ 7 (22%) symptomless rhinorrhea, N ¼ 0 (0%) severe, N ¼ 18

poor. Awareness of decreased obstruc tion: N ¼ 245 (70%) excellent, N ¼ 56 16% good, N ¼ 49 (14%) fair, and 0% (N ¼ 0) poor Beneficial for N ¼ 55 (67%) nonallergic rhinitis patient Beneficial for N ¼ 43 (80%) allergic rhini tis patients

Postoperative obstruction: N ¼ 17 (52%) symptomless and N ¼ 15 (48%) mild

Postoperative obstruction: N ¼ 23 (72%) symptomless and N ¼ 9 (28%) mild

33 Subjective reports classi fied as severe, mild, and none Preoperative obstruction: N ¼ 18 (55%) severe obstruction and N ¼ 13 (45%) mild

32 Subjective reports classi fied as severe, mild, and none Preoperative obstruction: N ¼ 16 (50%) severe and N ¼ 16 (50%) mild

Preoperative rhinorrhea: N ¼ 19 (58%) severe and N ¼ 14 (42%) mild

(56%) mild, N ¼ 14 (44%) symptomless

N Success Outcomes

N ¼ 74 (93%) noted improvements in obstruction, rhinorrhea, and reduced upper respiratory infections

82 Clinical report and physi cal examination

54 Clinical report and physi cal examination

80 Subjective classifications of good to excellent or failed

Posttreatment

Author Cohort Year Device

(nitrous oxide)

(nitrous oxide)

TCC 10

TCC 10

(nitrous oxide)

(nitrous oxide)

Puhakka and Rantanen 31 Allergic rhinitis cohort 1977 Amoils Cryo Unit Molony 35 Mixed chronic rhinitis 1976 Frigitronic

Allergic rhinitis 1975 “Cooper’s Cryo Unit”

Principato 21 Nonallergic rhinitis 1979 Cryomedics Inc.

Karja et al. 30 Nonallergic rhinitis 1975 “Cooper’s Cryo Unit”

1977 Amoils Cryo Unit

Nonallergic rhini tis cohort

Puhakka and Rantanen 31

Table 2. Continued.

Abbreviation: TNSS, Total Nasal Symptom Score.

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