Incidence of postsurgical pulmonary embolism and deep venous thrombosis: a single-center retrospective observational study

JA Clinical Reports

Table 2 Incidence of perioperative deep venous thrombosis and pulmonary embolism (DVT/PE) after digestive surgery

Disease	DVT or PE cases/total number (n = 520)	% (95%CI)
Hepatic cancer, pancreatic cancer	5/22	22.7 (7.8–45.4)^b
Colorectal perforation	2/9	22.2 (2.8–60.0)
Acute appendicitis	7/77	9.1 (3.7–17.8)^a
Gastric cancer	2/22	9.1 (1.1–29.2)
Colorectal cancer (elective surgery)	6/83	7.2 (2.7–15.1)
Small bowel obstruction	2/28	7.1 (0.9–23.5)
Acute cholecystitis	2/41	4.9 (0.6–16.5)
Strangulated hernia (femoral or inguinal)	0/16	0 (0–20.6)
Gastrointestinal perforation	0/7	0 (0–41.0)
Hernia (elective surgery; femoral or inguinal)	0/133	0 (0–2.7)^a^,^b
Gallstone	0/45	0 (0–7.9)
Others	2/37	5.4 (0.7–18.2)

DVT deep venous thrombosis, PE pulmonary embolism, CI confidence interval
Sixteen patients were excluded from the study (patients who already had PE or DVT on admission, or those who underwent a second operation during the hospital stay)
Perforated colorectal cancer cases were included in “colorectal perforation”
^aAcute appendicitis vs hernia (elective surgery), p = 0.049
^bHepatic cancer, pancreatic cancer vs hernia (elective surgery), p = 0.003
No statistically significant differences were seen among other categories (Fisher test, Bonferroni post hoc test)
95% confidence intervals were calculated with the Clopper-Pearson method