Malignant Bowel Obstruction and a Son Who Wants Surgery

Stop first

• Senna and any oral laxative or prokinetic: stimulating peristalsis against a fixed obstruction worsens colic and risks perforation.
• Metoclopramide is acceptable only in partial obstruction without colic; with colicky pain and complete obstruction it should not be used.
• Oral hydromorphone: nothing is absorbed; convert to subcutaneous.

Start

• Octreotide 100 mcg subcutaneously every 8 hours, escalated to 300 mcg every 8 hours or a continuous infusion of 600 mcg/24 h if vomiting persists. It reduces gut secretions and, in a majority of patients, vomiting within 48–72 hours.
• Dexamethasone 4–8 mg subcutaneously or intravenously daily (some use up to 16 mg) to reduce peritumoral edema; reassess at 48–72 hours and taper if unhelpful.
• Haloperidol 0.5–1 mg subcutaneously every 6–8 hours, or olanzapine 2.5–5 mg daily, for nausea and as an antiemetic adjunct.
• Hydromorphone 0.5 mg subcutaneously every 4 hours as needed, or an equivalent continuous subcutaneous infusion, for the colic.
• Fluids: 500–1000 mL/day subcutaneously or intravenously if she is thirsty; avoid large volumes that worsen ascites and vomiting.

Consider a nasogastric tube for 24–48 hours if vomiting is relentless; it is effective for decompression but is not a long-term home solution.

Take the request seriously rather than refusing it. Say: 'You are right that a blocked bowel can sometimes be fixed. Let me tell you what makes that likely or unlikely in your mother, and then we decide together.'

What predicts benefit from surgery

• A single, distal obstruction rather than diffuse carcinomatosis.
• Absence of ascites and of palpable tumor burden.
• Good performance status and albumin, and a history of response to chemotherapy.
• No prior obstruction and no recurrence after surgery.

She has the opposite profile: carcinomatosis, moderate ascites, a low albumin, and recurrent obstruction. Published series suggest fewer than a third of malignant bowel obstruction patients are surgical candidates, and among those with ascites and carcinomatosis, re-obstruction is common and perioperative mortality is high.

Alternatives to name explicitly

• Self-expanding metal stent if the obstruction is distal colonic or gastric outlet.
• Venting gastrostomy if the stomach is dilated and vomiting is the dominant problem.
• Medical management alone, which relieves vomiting in many patients and allows death at home - her stated priority.

Close the loop: the question is not 'can the surgeon do something' but 'which option gives her the most days at home feeling like herself.' Document that the son's concern was heard and that surgical consultation can still be requested if he wishes.

Home is plausible but conditional.

• A subcutaneous infusion pump and a hospice nurse able to teach and troubleshoot; her husband must be willing to give injections or manage the pump.
• 24-hour telephone and visit access, given the 45-minute distance.
• A plan for an as-needed subcutaneous 'comfort kit' (hydromorphone, haloperidol, dexamethasone) and clear written instructions about when to call.
• Explicit agreement about what she does not want - intubation, nasogastric tube at home, repeat hospitalization - documented and shared with the hospice.

Success at 72 hours

• Vomiting reduced to once daily or less; colic controlled; she is awake enough for conversation; no new confusion or oliguria; the husband reports he can manage.

Failure, and what follows

• Persistent vomiting despite octreotide and dexamethasone, uncontrolled pain, or a distended, tender abdomen suggesting perforation or strangulation.
• In that case: nasogastric decompression, imaging, and a conversation about whether a venting gastrostomy is worth a short admission or whether sedation for refractory vomiting is the more proportionate choice.

Set a scheduled telephone check at 24 and 72 hours rather than waiting for the family to call.