Acquired double pylorus: Clinical and endoscopic characteristics and four-year follow-up observations

Table 1 Clinical features of the four patients with acquired double pylorus¹

Characteristic	Case number
	1	2	3	4
Age (yr)	41	61	58	62
Sex	Male	Male	Male	Female
Disease duration	2 mo	1 yr	8 yr	2 mo
Symptoms at presentation	Epigastric pain	Melena	Coffee-ground vomitus	Abdominal pain
Previous history of gastric ulcer	-	-	+	-
Abdominal tenderness	+	+	+	+
NSAID use	-	Diclofenac	AKaFenSan2	AKaFenSan2
Helicobacter pylori infection	+	+	+	+
Hemoglobin (g/L)	-	82	101	115
Blood urea nitrogen (mmol/L)	-	14.3	26.3	6.1
Blood creatinine (μmol/L)	-	80.46	98	75.11
Blood uric acid (μmol/L)	-	334.2	270.75	565.5
Concomitant disease	-	Osteoarticular degenerative disease	Headache	Gout arthritis
Duration (yr)	-	3	18	20
Localization of the accessory pylorus	Lesser curve	Lesser curve	Lesser curve	Lesser curve
Localization of the gastric ulcer	Lesser curve	Within the accessory pylorus	Anterior wall	Within the accessory pylorus

¹The plus signs denote the presence of a feature, and the minus signs denote its absence;

²AKaFenSan, also called TouTongFen, is an over-the-counter analgesic consisting of acetaminophen, aspirin, and caffeine powder. NSAID: Nonsteroidal anti-inflammatory drug.