Table 1.
Hospital information for institutions that participated in the Japanese Association for Acute Medicine's out‐of‐hospital cardiac arrest (OHCA) Registry, June 2014 to December 2015
| 2014 | 2015 (total) | |
|---|---|---|
| No. of participating institutions | n = 56 | n = 73 |
| Area, n (%) | ||
| Hokkaido/Tohoku | 12 (21.4) | 13 (17.8) |
| Kanto | 11 (19.6) | 17 (23.3) |
| Tokai/Hokuriku | 5 (8.9) | 7 (9.6) |
| Kinki | 20 (35.7) | 23 (31.5) |
| Chugoku/Shikoku | 4 (7.1) | 7 (9.6) |
| Kyushu/Okinawa | 4 (7.1) | 6 (8.2) |
| Critical emergency medical center or tertiary emergency medical facility, n (%) | 40 (71.4) | 55 (75.3) |
| Bed capacity, mean (SD) | ||
| Total | 579.9 (315.4) | 608.0 (293.0) |
| Intensive care unit | 11.3 (8.1) | 12.9 (9.3) |
| Pediatric intensive care unit† | 25.7 (17.2) | 16.8 (14.7) |
| Annual expected number of OHCA cases, mean (SD) | 156.4 (119.0) | 152.0 (112.1) |
| ≥3 Physicians treated an OHCA case (daytime duty), n (%) | 44 (78.6) | 60 (82.2) |
| ≥3 Physicians treated an OHCA case (night‐time duty), n (%) | 30 (53.6) | 40 (54.8) |
| ≥3 Nurses treated an OHCA case (daytime duty), n (%) | 27 (48.2) | 32 (43.8) |
| ≥3 Nurses treated an OHCA case (night‐time duty), n (%) | 15 (26.8) | 19 (26.0) |
| Acute care physicians for OHCA treatment, n (%) | 53 (94.6) | 70 (95.9) |
| Intensive care physicians for OHCA treatment, n (%) | 43 (76.8) | 60 (82.2) |
| Anesthesiologists for OHCA treatment, n (%) | 43 (76.8) | 60 (82.2) |
| Cardiologists for OHCA treatment, n (%) | 51 (91.1) | 66 (90.4) |
| Pediatricians for OHCA treatment, n (%) | 40 (71.4) | 52 (71.2) |
| Use of ETCO2 monitor during cardiopulmonary arrest, n (%) | 31 (55.4) | 43 (58.9) |
| ECPR use for OHCA (any time or daytime), n (%) | 52 (92.9) | 69 (94.5) |
| ECPR protocol, n (%)‡ | 27 (51.9) | 37 (53.6) |
| Clinical engineer who performed ECPR priming, n (%)‡ | 45 (86.5) | 60 (87.0) |
| Targeted temperature management for OHCA, n (%) | 54 (96.4) | 71 (97.3) |
| Targeted temperature management protocol, n (%) | 34 (63.0) | 45 (63.4) |
| Target (maintenance) temperature, °C; n (%)§ | ||
| 32 (hypothermia) | 1 (2.9) | 1 (2.2) |
| 33 (hypothermia) | 5 (14.7) | 4 (8.9) |
| 34 (hypothermia) | 26 (76.5) | 38 (84.4) |
| 35 (normothermia) | 2 (5.9) | 2 (4.4) |
| Duration of target (maintenance) temperature, h; n (%)§ | ||
| 12 | 2 (5.9) | 2 (4.4) |
| 24 | 25 (73.5) | 31 (68.9) |
| 48 | 6 (17.6) | 11 (24.4) |
| 72 | 1 (2.9) | 1 (2.2) |
| Rewarming target temperature, °C; mean (SD)§ | 35.0 (6.2) | 35.3 (5.4) |
| Duration of rewarming, h; mean (SD)‡ | 38.4 (18.5) | 40.8 (18.8) |
†Calculated for three (2014) and six (2015) institutions with a pediatric intensive care unit.
‡Calculated for 52 (2014) and 69 (2015) institutions with extracorporeal cardiopulmonary resuscitation (ECPR) use.
§Calculated for 34 (2014) and 45 (2015) institutions having body temperature management protocol.
ETCO2, end‐tidal carbon dioxide; OHCA, out‐of‐hospital cardiac arrest; SD, standard deviation.