Table 2.
Patient characteristics
| Patient characteristics | |||||||
| Ref. | Operation type | ASA I | ASA II | ASA III | ASA IV | Previous operation | Indication |
| Buckley et al[30] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Sukharamwala et al[17] | Nissen | n/a | n/a | n/a | n/a | 14 | GERD |
| Agaba et al[26] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Galvani et al[24] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Wu et al[25] | Nissen | n/a | n/a | n/a | n/a | n/a | Hiatus Hernia |
| Strzalka et al[31] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Yilmaz et al[22] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Eyuboglu et al[20] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Miyazaki et al[19] * | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Mizuno et al[21]** | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Barbaros et al[18] | Nissen | n/a | n/a | n/a | n/a | n/a | Hiatus Hernia |
| Dapri et al[23] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Hawasli et al[12] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Hamzaoglu et al[11] | Nissen | n/a | n/a | n/a | n/a | n/a | GERD |
| Fukuda et al[14] | Heller and Dor | n/a | n/a | n/a | n/a | n/a | Achalasia |
| Wu et al[25] | Heller and Dor | n/a | n/a | n/a | n/a | n/a | Achalasia |
| Ross et al[32] | Heller and Dor | n/a | n/a | n/a | n/a | 5 | Achalasia |
| Yamada et al[28] | Heller and Dor | n/a | n/a | n/a | n/a | n/a | Achalasia |
| Yano et al[29] | Heller and Dor | n/a | n/a | n/a | n/a | n/a | Achalasia |
| Nakajima et al[27] | Heller and Dor | n/a | n/a | n/a | n/a | n/a | Achalasia |
| Sukharamwala et al[17] | Toupet | n/a | n/a | n/a | n/a | 14 | GERD |
n/a: Not available; ASA: American Society of Anesthesiologists; GERD: Gastroesophageal reflux disease.