13
Immediate Complications (Intraoperative or Day of Surgery)
Complication
Associated
Procedures Signs/Symptoms Comments
Bleeding All Tachycardia,
hypotension,
drop in hemoglobin
Often self-
limiting; monitor
hemodynamics;
rarely requires
reoperation
Injury to
adjacent
organs
RNYGB,
BPD/DS
Unexpected
bleeding, abnormal
anatomy, peritoneal
signs post-op
Rare; usually
identified
intraoperatively
and repaired
Early Complications (Within 30 Days)
Complication
Associated
Procedures
Signs/
Symptoms Comments
Anastomotic
leak
RNYGB, BPD/
DS, SADI-S
Fever,
tachycardia,
abdominal
pain, sepsis
Computed
tomography (CT)
imaging; surgical
or percutaneous
intervention
Infection
(wound, port site)
All Redness,
warmth,
purulent
drainage
Superficial vs.
deep; treat with
antibiotics or
drainage
Stricture/stenosis RNYGB, SG Dysphagia,
vomiting,
early satiety
Managed with
endoscopic
dilation
Deep vein
thrombosis
(DVT)/pulmonary
embolism (PE)
All Leg pain/
swelling,
chest pain,
dyspnea
Requires
anticoagulation;
consider
prophylaxis
Dumping
syndrome
RNYGB,
SADI-S
Nausea,
diarrhea,
dizziness,
palpitations
Dietary
modifications
are mainstay
