Success rates of needle aspiration (and intercostal drain if available) reported in previous primary spontaneous pneumothorax studies
| Study (year, country) | Study type | Number of patients | NA immediate success rate (ICD if available) | Predictors of failure of NA |
|---|---|---|---|---|
| Raja et al17 (1981, UK) | Prospective | 33 | 69% | N/A |
| Harvey et al18 (1994, UK) | Prospective, multicentre | 73 | 80% | Size not predictor of failure |
| Noppen et al19 (2002, Belgium) | Prospective, multicentre | 60 | 59% NA, 63% ICD | Repeat NA |
| Packham et al20 (2003, UK) | Retrospective | 85 | 50% | Managed by general physicians |
| Chan et al21 (2005, Hong Kong) | Retrospective | 91 | 50.5% | Size >40% |
| Camuset et al22 (2006, France) | Prospective | 35 | 69% | Size not predictor of failure |
| Ayed et al23 (2006, Kuwait) | Prospective | 137 | 62% NA, 68% ICD | N/A |
| Nishiuma et al24 (2012, Japan) | Retrospective | 143 | 72.5% | Size >50% |
| Thelle et al25 (2017, Norway) | Prospective, multicentre | 79 | 73% NA, 37% ICD | N/A |
ICD = intercostal drain; N/A = not applicable; NA = needle aspiration.