Management of Sepsis Without Shock: Evidence‑Based Recommendations

Initial Antimicrobial Management

• Administer intravenous broad‑spectrum antibiotics within one hour of sepsis recognition; each hour of delay is associated with increased mortality【1】.
• Obtain at least two sets of blood cultures (aerobic and anaerobic) before starting antibiotics, but do not delay antimicrobial therapy more than 45 minutes to obtain cultures【1】.
• Re‑evaluate antimicrobial therapy daily once pathogen identification and susceptibility results are available (typically within 48–72 h) and de‑escalate to the narrowest effective single agent within 3–5 days【1】.
• Plan a total antibiotic course of 7–10 days for most serious infections; extend duration for slow clinical response, undrainable foci, Staphylococcus aureus bacteremia, fungal/viral infections, or immunodeficiency (e.g., neutropenia)【1】.

Lactate‑Guided Resuscitation

• Measure serum lactate immediately at sepsis recognition as a marker of tissue hypoperfusion【1】.
• If the initial lactate is ≥ 2 mmol/L, repeat the measurement within 6 hours and use lactate normalization (< 2 mmol/L) to guide ongoing resuscitation【1】.

Fluid Resuscitation (First 3 Hours)

• Deliver ≥ 30 mL/kg of intravenous crystalloid (normal saline or balanced solution) within the first 3 hours for patients with sepsis‑induced hypoperfusion (defined by hypotension or lactate ≥ 4 mmol/L)【1】.
• Guide additional fluid challenges with dynamic indices (e.g., pulse‑pressure variation, stroke‑volume variation) or, when unavailable, with static variables (blood pressure, heart rate, urine output); stop fluids when hemodynamic parameters no longer improve to avoid fluid overload【1】.

Hemodynamic Targets and Vasopressor Use

• Aim for a mean arterial pressure (MAP) ≥ 65 mmHg in most adults; consider a higher target of 70–85 mmHg in patients with chronic hypertension because of a right‑shifted autoregulatory curve【1】.
• Initiate vasopressor therapy (norepinephrine) if MAP remains < 65 mmHg after the initial 30 mL/kg fluid bolus【1】.
• Norepinephrine is the first‑line agent, started at 0.05–0.1 µg/kg/min and titrated to maintain MAP ≥ 65 mmHg【1】.
• Add vasopressin 0.03 U/min to norepinephrine when additional MAP support is needed; vasopressin should never be used as the sole initial vasopressor【1】.
• Epinephrine may be added as a second‑line agent if norepinephrine alone is insufficient【1】.

Perfusion Monitoring

• Monitor urine output with a target of ≥ 0.5 mL/kg/h as a bedside indicator of renal perfusion【2】.
• Use lactate normalization (< 2 mmol/L) as a resuscitation endpoint to confirm resolution of tissue hypoperfusion【1】.

Source Control

• Identify or exclude a specific anatomic infection source within 12 hours of sepsis onset and obtain prompt imaging when indicated【1】.
• Perform required source‑control interventions (e.g., drainage, debridement, removal of infected devices) as soon as medically and logistically feasible【1】.

All recommendations are derived from peer‑reviewed guidelines and studies, primarily the 2017 Surviving Sepsis Campaign (Intensive Care Medicine) and supporting evidence from Critical Care Medicine (2013).

Acute Management of Sepsis with Uncontrolled Hypertension: Evidence‑Based Priorities

1. Priority of Sepsis Resuscitation over Blood‑Pressure Control

• In patients with sepsis and uncontrolled hypertension, tissue hypoperfusion from sepsis is immediately life‑threatening, whereas elevated blood pressure without acute end‑organ damage can be addressed after hemodynamic stabilization. 3, 4
• Sepsis‑resuscitation protocols must be started within the first hour of recognition, irrespective of the blood‑pressure level. 3

2. First‑Hour Sepsis Bundle (Applicable Even When Blood Pressure Is High)

• Fluid: Give ≥30 mL/kg of intravenous crystalloid within the first 3 hours of sepsis recognition, regardless of baseline hypertension. 3, 4
• Antibiotics: Initiate broad‑spectrum intravenous antibiotics within 1 hour of sepsis recognition. 3

3. Identifying True Hypertensive Emergency (When Antihypertensive Therapy Is Indicated)

• Cardiac signs that denote a hypertensive emergency include acute pulmonary edema, acute coronary syndrome with chest pain and ECG changes, or acute aortic dissection; these require immediate antihypertensive treatment. 3
• A rapid bedside assessment should include auscultation for pulmonary edema and a 12‑lead ECG to rule out acute coronary syndrome. 3

4. Vasopressor Initiation and MAP Targets in Septic Shock with Baseline Hypertension

• After the initial 30 mL/kg fluid bolus, start norepinephrine if the mean arterial pressure (MAP) remains < 65 mmHg. 3
• In patients with chronic hypertension, aim for a higher MAP 70–85 mmHg because their autoregulatory curve is right‑shifted. 4

5. Monitoring Parameters During Acute Resuscitation

• Continuous arterial‑line blood‑pressure monitoring is recommended as soon as practical when vasopressors are used. 3
• Tissue‑perfusion markers to be followed include lactate clearance, urine output ≥0.5 mL/kg/h, mental status, and capillary‑refill time. 5, 6
• Urine output should be measured hourly with a target of ≥0.5 mL/kg/h. 5, 6

6. Common Pitfalls to Avoid (Evidence‑Based)

• Do not delay sepsis resuscitation to “control” blood pressure when no hypertensive emergency is present. 3
• Do not withhold fluid administration because blood pressure is elevated; aggressive volume resuscitation remains essential. 3, 5, 6
• Avoid dopamine as a vasopressor; it is associated with higher mortality and arrhythmias compared with norepinephrine. 3
• Recognize that a blood‑pressure reading that appears “normal” may actually represent relative hypotension in patients with longstanding severe hypertension. 4